/* ==========================================================================
   부울경 민주마을 — 전역 디자인 시스템 (Design System)
   Inspired by president.go.kr
   ========================================================================== */

/* ── Google Fonts는 HTML <head>의 preconnect + <link> 방식으로 로드 ── */

/* ── CSS Custom Properties (Design Tokens) ── */
:root {
    /* Color Palette */
    --color-primary: #00205C;
    --color-primary-light: #003087;
    --color-primary-dark: #001540;
    --color-accent-gold: #C8A45A;
    --color-accent-gold-light: #E0C880;
    --color-accent-blue: #2E6FCF;
    --color-accent-blue-light: #5A9BF0;
    --color-success: #22C55E;
    --color-warning: #F59E0B;
    --color-danger: #EF4444;
    --color-info: #3B82F6;

    /* Neutral Palette */
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;

    /* Typography */
    --font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Layout */
    --max-width: 1200px;
    --header-height: 72px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px rgba(200, 164, 90, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Z-index Scale */
    --z-header: 1000;
    --z-dropdown: 1010;
    --z-overlay: 1020;
    --z-modal: 1030;
    --z-toast: 1040;
}

/* ── Reset & Base ── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    word-break: keep-all;
    overflow-wrap: break-word;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-gold);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: var(--font-family);
    cursor: pointer;
    border: none;
    background: none;
    font-size: inherit;
}

input, select, textarea {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
}

/* ── Utility Classes ── */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.text-center { text-align: center; }
.text-gold { color: var(--color-accent-gold); }
.text-primary { color: var(--color-primary); }

/* ── Skip Navigation ── */
.skip-nav {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    z-index: calc(var(--z-header) + 10);
    transition: top var(--transition-fast);
}
.skip-nav:focus {
    top: var(--spacing-sm);
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(0, 32, 92, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: var(--z-header);
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
    background: rgba(0, 32, 92, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-image {
    max-height: 48px;
    width: auto;
    object-fit: contain;
    transition: transform var(--transition-fast);
}

.logo:hover .logo-image {
    transform: scale(1.03);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-gold-light));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    font-weight: 900;
}

.logo-text {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    font-weight: 700;
    letter-spacing: -0.5px;
    white-space: nowrap;
}

.logo-text .highlight {
    color: var(--color-accent-gold);
}

/* Main Navigation */
.main-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-link {
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-accent-gold);
    background: rgba(200, 164, 90, 0.1);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-accent-gold);
    transition: all var(--transition-base);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 60%;
}

/* Header Auth Buttons */
.header-auth {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-header {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-xs);
    font-weight: 500;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.25);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-header:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-header.primary {
    background: var(--color-accent-gold);
    color: var(--color-primary);
    border-color: var(--color-accent-gold);
    font-weight: 600;
}

.btn-header.primary:hover {
    background: var(--color-accent-gold-light);
    box-shadow: 0 0 12px rgba(200, 164, 90, 0.4);
}

/* Mobile Menu Toggle */
.mobile-menu-btn {
    display: none;
    width: 44px;
    height: 44px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    z-index: calc(var(--z-header) + 5);
    background: rgba(255, 255, 255, 0.1);
    border: 1.5px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast), border-color var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
}

.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 3px;
    background: var(--color-white);
    transition: all var(--transition-base);
    border-radius: 2px;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
    transform: scale(0);
}
.mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================================================
   HERO SLIDER
   ========================================================================== */
.hero-slider {
    position: relative;
    width: 100%;
    padding-top: calc(var(--header-height) / 4);
    overflow: hidden;
    background: var(--color-primary-dark);
}

.slider-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    max-height: 1050px;
}

.slider-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    z-index: 1;
}

.slider-slide.active {
    opacity: 1;
    z-index: 2;
}

.slider-slide img,
.slider-slide video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
}

.slider-slide .slide-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to right,
        rgba(0, 32, 92, 0.72) 0%,
        rgba(0, 32, 92, 0.35) 30%,
        rgba(0, 32, 92, 0) 50%
    );
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: var(--spacing-3xl) var(--spacing-4xl);
}

.slide-title {
    color: var(--color-white);
    font-size: var(--font-size-4xl);
    font-weight: 700;
    line-height: 1.3;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    max-width: 600px;
}

.slide-subtitle {
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--font-size-lg);
    margin-top: var(--spacing-sm);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
    max-width: 500px;
}

/* Slider Controls */
.slider-controls {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    z-index: 5;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: all var(--transition-base);
}

.slider-dot.active {
    background: var(--color-accent-gold);
    border-color: var(--color-accent-gold);
    transform: scale(1.2);
    box-shadow: 0 0 8px rgba(200, 164, 90, 0.5);
}

.slider-arrow {
    position: absolute;
    bottom: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(0, 32, 92, 0.6);
    backdrop-filter: blur(8px);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    cursor: pointer;
    z-index: 5;
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.slider-arrow:hover {
    background: rgba(200, 164, 90, 0.8);
    box-shadow: var(--shadow-glow);
}

.slider-arrow.prev { left: var(--spacing-xl); }
.slider-arrow.next { right: var(--spacing-xl); }

/* Slider Video Sound Toggle Button */
.slider-sound-toggle {
    position: absolute;
    bottom: 30px;
    right: 85px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(0, 32, 92, 0.6);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    display: none;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    cursor: pointer;
    z-index: 6;
    transition: all var(--transition-base);
}

.slider-sound-toggle:hover {
    background: rgba(200, 164, 90, 0.8);
    box-shadow: var(--shadow-glow);
}

/* ==========================================================================
   SECTION: PHOTO MOSAIC
   ========================================================================== */
.photo-mosaic-section {
    background: var(--color-primary-dark);
    position: relative;
    overflow: hidden;
}

.photo-mosaic-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('images/hero_slide_2.png') center/cover no-repeat;
    opacity: 0.08;
    pointer-events: none;
    z-index: 0;
}

.photo-mosaic-grid {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 4px;
    padding: 4px;
    height: 520px;
    align-items: stretch;
}

/* 좌측 대형 사진 */
.mosaic-large {
    flex: 0 0 42%;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    display: block;
}

/* 우측 3개 사진 컨테이너 */
.mosaic-right {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 4px;
}

/* 우측 첫 번째 .mosaic-sm → 상단 전체 너비 */
.mosaic-right .mosaic-sm:first-child {
    grid-column: 1 / 3;
}

/* 소형 사진 공통 */
.mosaic-sm {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    display: block;
    min-height: 0;
    min-width: 0;
}

/* 모든 모자이크 이미지: absolute로 채움 */
.mosaic-large img,
.mosaic-sm img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    display: block;
}

.mosaic-large:hover img,
.mosaic-sm:hover img {
    transform: scale(1.05);
}

/* 오버레이 */
.mosaic-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(0, 20, 60, 0.78) 0%,
        rgba(0, 20, 60, 0.2) 45%,
        transparent 100%
    );
    display: flex;
    align-items: flex-end;
    padding: 1.25rem 1.5rem;
    transition: background 0.3s ease;
    z-index: 1;
}

.mosaic-overlay-hidden {
    background: rgba(0, 20, 60, 0.15);
}

.mosaic-large:hover .mosaic-overlay,
.mosaic-sm:hover .mosaic-overlay {
    background: linear-gradient(
        to top,
        rgba(0, 20, 60, 0.88) 0%,
        rgba(0, 20, 60, 0.3) 50%,
        transparent 100%
    );
}

/* 텍스트 레이블 */
.mosaic-label {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--color-white);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.3px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

.mosaic-large .mosaic-label {
    font-size: 1.4rem;
}

.mosaic-label i {
    font-size: 0.9rem;
    transition: transform 0.25s ease;
    opacity: 0.85;
}

.mosaic-large:hover .mosaic-label i,
.mosaic-sm:hover .mosaic-label i {
    transform: translateX(5px);
    opacity: 1;
}

/* ==========================================================================
   SECTION: CARD GRID (4 Cards)
   ========================================================================== */
.section {
    padding: calc(var(--spacing-4xl) / 2) 0;
}


.section-dark {
    background: var(--color-gray-50);
}

.section-navy {
    background: var(--color-primary);
    color: var(--color-white);
}

.section-header {
    text-align: center;
    margin-bottom: calc(var(--spacing-3xl) / 2);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    position: relative;
    display: inline-block;
}

.section-navy .section-title {
    color: var(--color-white);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent-gold), var(--color-accent-gold-light));
    margin: var(--spacing-md) auto 0;
    border-radius: var(--radius-full);
}

.section-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-gray-500);
    margin-top: var(--spacing-sm);
}

/* Card Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent-gold));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.card:hover::before {
    opacity: 1;
}

.card-image {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card:hover .card-image {
    transform: scale(1.05);
}

.card-image-wrapper {
    overflow: hidden;
    position: relative;
}

.card-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 32, 92, 0.7), transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.card:hover .card-image-overlay {
    opacity: 1;
}

.card-body {
    padding: var(--spacing-lg);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.card-desc {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    line-height: 1.6;
}

.card-arrow {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-accent-gold);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-top: var(--spacing-md);
    transition: gap var(--transition-fast);
}

.card:hover .card-arrow {
    gap: var(--spacing-sm);
}

/* ==========================================================================
   SECTION: BULLETIN BOARD (게시판 영역)
   ========================================================================== */
.board-section {
    padding: calc(var(--spacing-4xl) / 2) 0;
    background: var(--color-white);
}

.board-tabs {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--color-gray-200);
}

.board-tab {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-gray-500);
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.board-tab:hover {
    color: var(--color-primary);
}

.board-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-accent-gold);
}

.board-list {
    border-top: 2px solid var(--color-primary);
}

.board-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-200);
    transition: background var(--transition-fast);
    cursor: pointer;
}

.board-item:hover {
    background: var(--color-gray-50);
}

.board-item.notice {
    background: rgba(200, 164, 90, 0.05);
}

.board-item .badge-notice {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-right: var(--spacing-md);
    white-space: nowrap;
}

.board-item .item-title {
    flex: 1;
    font-size: var(--font-size-sm);
    color: var(--color-gray-800);
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.board-item .item-date {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
    margin-left: var(--spacing-lg);
    white-space: nowrap;
}

.board-more {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-xl);
}

/* ==========================================================================
   SECTION: YOUTUBE VIDEOS — Featured Player + Sidebar
   ========================================================================== */
.youtube-section {
    padding: calc(var(--spacing-4xl) / 2) 0;
    background: var(--color-primary-dark);
}

.youtube-section .section-title,
.youtube-section .section-title .highlight {
    color: var(--color-white);
}

/* 피쳐드 레이아웃 컨테이너 */
.yt-featured-layout {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

/* 좌측 메인 플레이어 */
.yt-main-player {
    flex: 1 1 65%;
    min-width: 0;
}

.yt-iframe-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.yt-iframe-wrapper iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.yt-main-title {
    margin-top: 0.75rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: rgba(255,255,255,0.9);
    line-height: 1.5;
}

/* 우측 사이드바 */
.yt-sidebar {
    flex: 0 0 34%;
    display: flex;
    flex-direction: column;
    gap: 0;
    background: rgba(0, 10, 40, 0.55);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

/* 사이드바 개별 항목 */
.yt-sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.9rem;
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.yt-sidebar-item:hover {
    background: rgba(255, 255, 255, 0.07);
}

.yt-sidebar-item.active {
    background: rgba(255, 255, 255, 0.12);
    border-left-color: #ff4545;
}

/* 썸네일 */
.yt-sidebar-thumb {
    position: relative;
    flex: 0 0 110px;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: #000;
}

.yt-sidebar-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.yt-sidebar-item:hover .yt-sidebar-thumb img {
    transform: scale(1.05);
}

/* 사이드바 재생 아이콘 */
.yt-sidebar-play {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.25);
    color: var(--color-white);
    font-size: 0.75rem;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.yt-sidebar-item:hover .yt-sidebar-play,
.yt-sidebar-item.active .yt-sidebar-play {
    opacity: 1;
}

/* 사이드바 텍스트 */
.yt-sidebar-info {
    flex: 1;
    min-width: 0;
}

.yt-sidebar-title {
    font-size: 0.8rem;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.yt-sidebar-item.active .yt-sidebar-title {
    color: var(--color-white);
    font-weight: 700;
}

/* 기존 youtube-grid / youtube-card 유지 (다른 페이지 혹여 사용 시) */
.youtube-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.youtube-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    cursor: pointer;
}

.youtube-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.youtube-thumb-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.youtube-thumb-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.youtube-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 56px;
    height: 56px;
    background: rgba(255, 0, 0, 0.85);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: var(--font-size-xl);
    transition: all var(--transition-base);
    box-shadow: 0 4px 15px rgba(255, 0, 0, 0.3);
}

.youtube-info {
    padding: var(--spacing-md) var(--spacing-lg);
}

.youtube-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-800);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.youtube-channel {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
    margin-top: var(--spacing-xs);
}


/* ==========================================================================
   SECTION: BLOG — Featured Card + Sidebar (유튜브 방송국 스타일)
   ========================================================================== */
.blog-section {
    padding: calc(var(--spacing-4xl) / 2) 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.blog-section .section-title {
    color: var(--color-white);
}
.blog-section .section-title .highlight {
    color: #ffd369;
}

/* 피쳐드 레이아웃 컨테이너 */
.blog-featured-layout {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

/* 좌측 메인 카드 */
.blog-main-card {
    flex: 1 1 65%;
    min-width: 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: rgba(255,255,255,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.blog-main-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.blog-main-thumb {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #111;
}
.blog-main-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.blog-main-card:hover .blog-main-thumb img {
    transform: scale(1.03);
}

.blog-main-info {
    padding: 1rem 1.25rem 1.25rem;
}
.blog-main-date {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.5);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.5rem;
}
.blog-main-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.5;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.blog-main-summary {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 우측 사이드바 */
.blog-sidebar {
    flex: 0 0 34%;
    display: flex;
    flex-direction: column;
    gap: 0;
    background: rgba(0, 10, 40, 0.55);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.blog-sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.9rem;
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: background 0.2s ease, border-color 0.2s ease;
}
.blog-sidebar-item:hover {
    background: rgba(255,255,255,0.07);
}
.blog-sidebar-item.active {
    background: rgba(255,255,255,0.12);
    border-left-color: #ffd369;
}

.blog-sidebar-thumb {
    flex: 0 0 100px;
    height: 60px;
    border-radius: 6px;
    overflow: hidden;
    background: #222;
}
.blog-sidebar-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-sidebar-info {
    flex: 1;
    min-width: 0;
}
.blog-sidebar-title {
    font-size: 0.8rem;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 0;
}
.blog-sidebar-item.active .blog-sidebar-title {
    color: var(--color-white);
    font-weight: 700;
}
.blog-sidebar-date {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.4);
    margin-top: 0.25rem;
    display: block;
}

/* --- 블로그 글 상세 페이지 --- */
.blog-detail-container {
    max-width: 860px;
    margin: 0 auto;
    padding: 2rem 1rem;
}
.blog-detail-thumb {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}
.blog-detail-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 0.85rem;
    color: var(--color-gray-400);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-gray-200);
}
.blog-detail-content {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--color-gray-800);
    word-break: keep-all;
}
.blog-detail-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: 1rem 0;
}
.blog-detail-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-gray-200);
}

/* --- 블로그 글쓰기 페이지 --- */
.blog-write-container {
    max-width: 860px;
    margin: 0 auto;
    padding: 2rem 1rem;
}
.blog-form-group {
    margin-bottom: 1.5rem;
}
.blog-form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-gray-700);
    font-size: 0.95rem;
}
.blog-form-group input[type="text"],
.blog-form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
    box-sizing: border-box;
}
.blog-form-group input[type="text"]:focus,
.blog-form-group textarea:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0,32,92,0.1);
}
.blog-form-group textarea {
    min-height: 400px;
    resize: vertical;
    line-height: 1.8;
}
.blog-thumb-preview {
    max-width: 300px;
    max-height: 200px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-top: 0.75rem;
    display: none;
    border: 2px solid var(--color-gray-200);
}
.blog-form-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 2rem;
}

/* --- 블로그 목록 페이지 --- */
.blog-list-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1rem;
}
.blog-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}
.blog-list-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}
.blog-list-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.blog-list-card-thumb {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
}
.blog-list-card-info {
    padding: 1rem 1.25rem 1.25rem;
}
.blog-list-card-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-gray-800);
    line-height: 1.5;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.blog-list-card-summary {
    font-size: 0.85rem;
    color: var(--color-gray-500);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 0.5rem;
}
.blog-list-card-date {
    font-size: 0.75rem;
    color: var(--color-gray-400);
}


/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
    background: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-3xl) 0;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-white);
}

.footer-logo .highlight {
    color: var(--color-accent-gold);
}

.footer-social {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.social-link {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-lg);
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background: var(--color-accent-gold);
    color: var(--color-primary);
    border-color: var(--color-accent-gold);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(200, 164, 90, 0.3);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-link {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-accent-gold);
}

.footer-copyright {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.35);
}

/* ==========================================================================
   BUTTONS (공용)
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
    border: none;
    line-height: 1;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-primary-light);
    box-shadow: var(--shadow-md);
    color: var(--color-white);
}

.btn-gold {
    background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-gold-light));
    color: var(--color-primary);
}

.btn-gold:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
    color: var(--color-primary);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-danger {
    background: var(--color-danger);
    color: var(--color-white);
}

.btn-danger:hover {
    background: #DC2626;
    color: var(--color-white);
}

.btn-sm {
    padding: 8px 16px;
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: 16px 32px;
    font-size: var(--font-size-base);
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   FORMS (공용)
   ========================================================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-sm);
}

.form-required {
    color: var(--color-danger);
    margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--color-accent-blue);
    box-shadow: 0 0 0 3px rgba(46, 111, 207, 0.15);
}

.form-input.error,
.form-textarea.error {
    border-color: var(--color-danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-help {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
    margin-top: var(--spacing-xs);
}

.form-error {
    font-size: var(--font-size-xs);
    color: var(--color-danger);
    margin-top: var(--spacing-xs);
}

.form-row {
    display: flex;
    gap: var(--spacing-lg);
}

.form-row > .form-group {
    flex: 1;
}

/* Checkbox / Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

/* ==========================================================================
   TABLES (게시판)
   ========================================================================== */
.board-table-wrapper {
    overflow-x: auto;
}

.board-table {
    width: 100%;
    border-collapse: collapse;
    border-top: 2px solid var(--color-primary);
}

.board-table th {
    background: var(--color-gray-50);
    padding: var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-700);
    text-align: center;
    border-bottom: 1px solid var(--color-gray-200);
    white-space: nowrap;
}

.board-table td {
    padding: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    text-align: center;
    border-bottom: 1px solid var(--color-gray-100);
}

.board-table td.title-cell {
    text-align: left;
    max-width: 400px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.board-table td.title-cell a {
    color: var(--color-gray-800);
    font-weight: 500;
}

.board-table td.title-cell a:hover {
    color: var(--color-primary);
}

.board-table tr.notice-row {
    background: rgba(200, 164, 90, 0.05);
}

.board-table tr.notice-row td.title-cell a {
    font-weight: 700;
    color: var(--color-primary);
}

.badge-notice-table {
    display: inline-block;
    padding: 2px 8px;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 11px;
    font-weight: 700;
    border-radius: var(--radius-full);
    margin-right: var(--spacing-sm);
}

/* Board Table Mobile Optimization Defaults */
.mobile-meta {
    display: none;
}
.author-mobile {
    display: none;
}
.author-desktop {
    display: inline;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-2xl);
}

.page-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.page-btn:hover {
    background: var(--color-gray-50);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.page-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ==========================================================================
   AUTH PAGES (Login / Register)
   ========================================================================== */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--header-height) + var(--spacing-2xl)) var(--spacing-xl) var(--spacing-2xl);
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
}

.auth-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-3xl);
    width: 100%;
    max-width: 480px;
    box-shadow: var(--shadow-xl);
}

.auth-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.auth-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.auth-footer a {
    color: var(--color-accent-blue);
    font-weight: 600;
}

.auth-footer a:hover {
    color: var(--color-primary);
}

/* ==========================================================================
   SUB-PAGE LAYOUT
   ========================================================================== */
.page-hero {
    padding: calc(var(--header-height) + var(--spacing-3xl)) 0 var(--spacing-3xl);
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    text-align: center;
}

.page-hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.page-hero-breadcrumb {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
}

.page-hero-breadcrumb a {
    color: rgba(255, 255, 255, 0.6);
}

.page-hero-breadcrumb a:hover {
    color: var(--color-accent-gold);
}

.page-hero-breadcrumb .separator {
    margin: 0 var(--spacing-sm);
    color: rgba(255, 255, 255, 0.3);
}

.page-content {
    padding: var(--spacing-3xl) 0 var(--spacing-4xl);
}

/* ==========================================================================
   POST VIEW
   ========================================================================== */
.post-header {
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.post-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

.post-meta {
    display: flex;
    gap: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
}

.post-body {
    min-height: 300px;
    padding: var(--spacing-xl) 0;
    font-size: var(--font-size-base);
    line-height: 1.8;
    color: var(--color-gray-700);
    word-break: break-word;
    white-space: pre-wrap;
}

.post-actions {
    display: flex;
    justify-content: space-between;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-gray-200);
}

/* ==========================================================================
   CAPTCHA
   ========================================================================== */
.captcha-box {
    background: var(--color-gray-50);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.captcha-question {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
    user-select: none;
    letter-spacing: 2px;
    background: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px dashed var(--color-gray-300);
}

.captcha-input {
    width: 100px;
    padding: 10px 16px;
    font-size: var(--font-size-lg);
    text-align: center;
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-weight: 700;
}

.captcha-refresh {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-lg);
}

.captcha-refresh:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

/* ==========================================================================
   ADMIN TABLE
   ========================================================================== */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--spacing-xl);
}

.admin-table th {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-align: center;
}

.admin-table td {
    padding: var(--spacing-md);
    font-size: var(--font-size-sm);
    text-align: center;
    border-bottom: 1px solid var(--color-gray-200);
}

.admin-table tr:hover {
    background: var(--color-gray-50);
}

/* ==========================================================================
   TOAST NOTIFICATION
   ========================================================================== */
.toast-container {
    position: fixed;
    top: calc(var(--header-height) + var(--spacing-md));
    right: var(--spacing-xl);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease forwards;
    min-width: 280px;
}

.toast.success { background: var(--color-success); }
.toast.error { background: var(--color-danger); }
.toast.info { background: var(--color-info); }
.toast.warning { background: var(--color-warning); }

.toast.hide {
    animation: toastOut 0.3s ease forwards;
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(100px); }
}

/* ==========================================================================
   MODAL
   ========================================================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: var(--z-overlay);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    width: 100%;
    max-width: 500px;
    box-shadow: var(--shadow-xl);
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.9) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

/* ==========================================================================
   SEARCH BAR
   ========================================================================== */
.search-bar {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    margin-bottom: var(--spacing-lg);
}

.search-bar select {
    padding: 8px 12px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
}

.search-bar input {
    padding: 8px 16px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    width: 250px;
}

.search-bar button {
    padding: 8px 20px;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.search-bar button:hover {
    background: var(--color-primary-light);
}

/* ==========================================================================
   BOARD TOOLBAR
   ========================================================================== */
.board-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.board-info {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ==========================================================================
   CONTENT BLOCKS (sub-pages)
   ========================================================================== */
.content-block {
    margin-bottom: var(--spacing-3xl);
}

.content-block h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-gray-200);
}

.content-block p {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.content-block ul {
    padding-left: var(--spacing-xl);
}

.content-block ul li {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    line-height: 1.8;
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.content-block ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--color-accent-gold);
    border-radius: 50%;
}

/* Feature List */
.feature-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.feature-item {
    background: var(--color-gray-50);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-accent-gold);
    transition: transform var(--transition-base);
}

.feature-item:hover {
    transform: translateX(4px);
}

.feature-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-item p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 1024px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .youtube-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .photo-mosaic-grid {
        height: 420px;
    }

    .feature-list {
        grid-template-columns: 1fr;
    }

    .slide-title {
        font-size: var(--font-size-3xl);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    .logo-image {
        max-height: 38px !important;
    }

    .mobile-visitor-badge {
        display: inline-flex !important;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .main-nav {
        position: absolute;
        top: var(--header-height);
        left: 0;
        width: 100%;
        max-height: 0;
        overflow: hidden;
        background: rgba(0, 32, 92, 0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        flex-direction: column;
        align-items: stretch;
        padding: 0 var(--spacing-xl);
        transition: max-height var(--transition-base) ease-in-out, padding var(--transition-base) ease-in-out;
        z-index: calc(var(--z-header) - 1);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .main-nav.open {
        max-height: 600px;
        padding: var(--spacing-md) var(--spacing-xl) var(--spacing-xl);
        overflow-y: auto;
    }

    .nav-list {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }

    .nav-link {
        width: 100%;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-base);
        border-radius: var(--radius-md);
    }

    /* Hide desktop headers in mobile */
    .desktop-only-actions {
        display: none !important;
    }

    /* Show mobile headers */
    .mobile-nav-actions {
        display: flex !important;
        flex-direction: column;
        gap: var(--spacing-sm);
        margin-top: var(--spacing-md);
        padding-top: var(--spacing-md);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        width: 100%;
    }

    .btn-header {
        width: 100%;
        text-align: center;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .youtube-grid {
        grid-template-columns: 1fr;
    }

    .slider-wrapper {
        aspect-ratio: 16 / 9;
    }

    .slider-slide .slide-overlay {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .slide-title {
        font-size: var(--font-size-2xl);
    }

    .slide-subtitle {
        font-size: var(--font-size-sm);
    }

    .slider-arrow {
        width: 36px;
        height: 36px;
        font-size: var(--font-size-base);
        bottom: 20px;
    }

    .slider-sound-toggle {
        width: 36px;
        height: 36px;
        font-size: var(--font-size-base);
        bottom: 20px;
        right: 68px;
    }

    .section {
        padding: var(--spacing-3xl) 0;
    }

    .yt-featured-layout {
        flex-direction: column;
    }

    .yt-main-player {
        flex: none;
        width: 100%;
    }

    .yt-sidebar {
        flex: none;
        width: 100%;
    }

    .yt-sidebar-thumb {
        flex: 0 0 90px;
    }

    .blog-featured-layout {
        flex-direction: column;
    }

    .blog-main-card {
        flex: none;
        width: 100%;
    }

    .blog-sidebar {
        flex: none;
        width: 100%;
    }

    .blog-sidebar-thumb {
        flex: 0 0 90px;
    }

    .photo-mosaic-grid {
        display: flex;
        flex-direction: row;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        height: 280px;
        gap: var(--spacing-md);
        padding: 0 var(--spacing-lg) var(--spacing-md);
        align-items: stretch;
    }

    .photo-mosaic-grid::-webkit-scrollbar {
        display: none;
    }

    .mosaic-large {
        flex: 0 0 82%;
        scroll-snap-align: start;
        border-radius: var(--radius-lg);
        height: 100%;
        box-shadow: var(--shadow-md);
    }

    .mosaic-right {
        display: contents;
    }

    .mosaic-sm {
        flex: 0 0 82%;
        scroll-snap-align: start;
        border-radius: var(--radius-lg);
        height: 100%;
        position: relative;
        box-shadow: var(--shadow-md);
    }

    .mosaic-large img,
    .mosaic-sm img {
        border-radius: var(--radius-lg);
    }

    .mosaic-large .mosaic-label,
    .mosaic-sm .mosaic-label {
        font-size: 1.15rem;
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .auth-card {
        padding: var(--spacing-xl);
    }

    .board-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .board-tab {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }

    .post-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .post-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .post-actions .btn {
        width: 100%;
    }

    .search-bar {
        flex-wrap: wrap;
    }

    .search-bar input {
        width: 100%;
    }

    .footer-top,
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .form-row {
        flex-direction: column;
    }

    .page-hero-title {
        font-size: var(--font-size-2xl);
    }

    .captcha-box {
        flex-direction: column;
        align-items: flex-start;
    }

    /* Board Table Mobile Optimization */
    .board-table thead {
        display: none !important;
    }
    
    .board-table tbody tr {
        display: flex !important;
        justify-content: space-between;
        align-items: center;
        padding: var(--spacing-md) !important;
        border-bottom: 1px solid var(--color-gray-200) !important;
        background: var(--color-white);
        gap: var(--spacing-md);
        transition: background-color var(--transition-base);
    }

    .board-table tbody tr:hover {
        background-color: var(--color-gray-50);
    }

    .board-table tbody tr td {
        display: block !important;
        padding: 0 !important;
        border: none !important;
        text-align: left !important;
        background: transparent !important;
    }

    .board-table tbody tr td.col-num,
    .board-table tbody tr td.col-date,
    .board-table tbody tr td.col-views {
        display: none !important;
    }

    .board-table tbody tr td.col-title {
        flex: 1;
        min-width: 0;
    }

    .board-table tbody tr td.col-author {
        flex-shrink: 0;
        text-align: right !important;
    }

    .title-text {
        font-size: var(--font-size-base);
        color: var(--color-gray-900);
        font-weight: 600;
        line-height: 1.4;
        word-break: break-all;
        margin-bottom: var(--spacing-xs);
    }

    .mobile-meta {
        display: flex !important;
        align-items: center;
        flex-wrap: wrap;
        gap: var(--spacing-xs) var(--spacing-md);
        font-size: var(--font-size-xs);
        color: var(--color-gray-400);
        margin-top: var(--spacing-xs);
    }

    .mobile-meta .meta-item {
        display: inline-flex;
        align-items: center;
        gap: 4px;
    }

    .mobile-meta .meta-item.region-tag {
        color: var(--color-primary);
        font-weight: 600;
    }

    .author-desktop {
        display: none !important;
    }

    .author-mobile {
        display: inline-block !important;
        padding: 4px var(--spacing-sm);
        background: var(--color-gray-50);
        border: 1px solid var(--color-gray-200);
        border-radius: var(--radius-sm);
        font-size: var(--font-size-xs);
        color: var(--color-gray-600);
        font-weight: 500;
        white-space: nowrap;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .slider-slide .slide-overlay {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .slider-controls {
        bottom: var(--spacing-md);
    }

    .slider-arrow {
        bottom: 16px;
    }

    .slider-sound-toggle {
        bottom: 16px;
    }

    .slide-title {
        font-size: var(--font-size-xl);
    }
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */
@media print {
    .site-header,
    .site-footer,
    .slider-controls,
    .slider-arrow,
    .mobile-menu-btn,
    .board-toolbar,
    .pagination,
    .toast-container {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
    }
}

/* ==========================================================================
   CMS REAL-TIME CONTENT EDITOR STYLES
   ========================================================================== */
.cms-edit-btn {
    padding: 6px 12px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-primary) !important; /* Deep Navy */
    background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-gold-light)) !important; /* Gold gradient */
    border: 1px solid var(--color-accent-gold) !important;
    border-radius: 4px !important;
    cursor: pointer !important;
    box-shadow: 0 2px 6px rgba(200, 164, 90, 0.3) !important;
    transition: all var(--transition-base) !important;
    outline: none !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 4px !important;
    text-transform: none !important;
    text-decoration: none !important;
}

.cms-edit-btn:hover {
    transform: translateY(-2px) scale(1.05) !important;
    box-shadow: 0 4px 12px rgba(200, 164, 90, 0.5) !important;
    background: linear-gradient(135deg, var(--color-accent-gold-light), #FCECB9) !important;
    border-color: var(--color-accent-gold-light) !important;
}
/* Ensure editables show a subtle outline or transition on hover when admin is active */
[data-cms-key] {
    transition: outline var(--transition-fast), outline-offset var(--transition-fast);
}

body.admin-mode [data-cms-key]:hover {
    outline: 2px dashed var(--color-accent-gold) !important;
    outline-offset: 4px !important;
    border-radius: 4px !important;
}

/* 슬라이드 배경 이미지 변경 / 유튜브 URL 변경 버튼: 기본적으로 숨김 */
.cms-slide-img-btn,
.cms-yt-url-btn {
    display: none !important;
}

/* 관리자 모드에서만 표시 */
body.admin-mode .cms-slide-img-btn,
body.admin-mode .cms-yt-url-btn {
    display: block !important;
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    background: rgba(200, 164, 90, 0.92);
    color: var(--color-primary);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: var(--radius-md);
    cursor: pointer;
    z-index: 10;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

/* ==========================================================================
   DROPDOWN MENU SYSTEM
   ========================================================================== */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(0, 21, 64, 0.98); /* Deep navy matching header */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    padding: 0.5rem 0;
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
    z-index: var(--z-dropdown);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* Tooltip arrow */
.dropdown-menu::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: transparent transparent rgba(0, 21, 64, 0.98) transparent;
}

/* Hover triggers on desktop */
@media (min-width: 769px) {
    .dropdown:hover .dropdown-menu,
    .dropdown:focus-within .dropdown-menu {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) translateY(4px);
    }
}

.dropdown-item {
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: 0.6rem 1.2rem;
    transition: all var(--transition-fast);
    text-align: center;
    white-space: nowrap;
    display: block;
}

.dropdown-item:hover {
    color: var(--color-accent-gold);
    background: rgba(200, 164, 90, 0.15);
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.dropdown-toggle i {
    transition: transform var(--transition-fast);
}

.dropdown:hover .dropdown-toggle i {
    transform: rotate(180deg);
    color: var(--color-accent-gold);
}

/* ==========================================================================
   MOBILE DROPDOWN RESPONSIVE STYLES
   ========================================================================== */
@media (max-width: 768px) {
    .dropdown {
        width: 100%;
    }

    .dropdown-menu {
        position: static;
        transform: none !important;
        background: rgba(0, 0, 0, 0.2);
        box-shadow: none;
        border: none;
        border-radius: 0;
        padding: 0;
        opacity: 1;
        visibility: visible;
        display: none; /* Toggle via open class on mobile */
        width: 100%;
        margin-top: var(--spacing-xs);
        padding-left: var(--spacing-md);
    }

    .dropdown-menu::before {
        display: none;
    }

    .dropdown.open .dropdown-menu {
        display: flex;
    }

    .dropdown-item {
        text-align: left;
        padding: var(--spacing-sm) var(--spacing-md);
        color: rgba(255, 255, 255, 0.7);
    }

    .dropdown-item:hover {
        background: transparent;
        color: var(--color-accent-gold);
    }

    .dropdown-toggle i {
        margin-left: auto !important; /* Put chevron arrow on right in mobile drawer */
    }

    .dropdown.open .dropdown-toggle i {
        transform: rotate(180deg);
        color: var(--color-accent-gold);
    }
}

/* ==========================================================================
   CALENDAR & EVENT STYLES — 일정 & 행사 페이지 용
   ========================================================================== */
.calendar-layout {
    margin-top: 1rem;
}

.calendar-table th,
.calendar-table td {
    border: 1px solid var(--color-gray-200);
}

.calendar-day {
    height: 90px;
    vertical-align: top;
    text-align: left;
    padding: 0.5rem !important;
}

.calendar-day:hover {
    background-color: var(--color-gray-50);
}

.calendar-day.calendar-today {
    background-color: rgba(200, 164, 90, 0.08);
    border: 2px solid var(--color-accent-gold) !important;
}

.calendar-day.calendar-has-event {
    background-color: rgba(0, 32, 92, 0.03);
}

.calendar-day.calendar-has-event:hover {
    background-color: rgba(0, 32, 92, 0.06);
}

.calendar-event-dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-accent-gold);
    border-radius: 50%;
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 4px rgba(200, 164, 90, 0.6);
}

.day-number {
    font-size: 1rem;
    font-weight: 600;
}

.event-item:hover {
    background-color: var(--color-gray-50);
}

/* 캘린더 모바일 레이아웃 및 폰트 개선 */
@media (max-width: 768px) {
    .calendar-layout {
        flex-direction: column;
    }
    
    .calendar-day {
        height: 60px;
        font-size: var(--font-size-sm);
        padding: 0.25rem !important;
    }
    
    .calendar-event-dot {
        width: 6px;
        height: 6px;
        bottom: 4px;
    }
}

/* ==========================================================================
   YOUTUBE PLAYER RESPONSIVE STYLES
   ========================================================================== */
.post-yt-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    margin-top: 2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-gray-200);
}

.post-yt-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* ==========================================================================
   VIEW META STYLES — 게시글 / 블로그 상세 정보 시안성 개선
   ========================================================================== */
.view-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.25rem;
    background-color: var(--color-gray-100);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    color: var(--color-gray-600);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.view-meta .meta-left {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.view-meta .meta-right {
    display: flex;
    align-items: center;
}

.view-meta .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.view-meta .meta-item i {
    color: var(--color-accent-gold);
    font-size: 0.95rem;
}

.view-meta .meta-item strong {
    color: var(--color-gray-800);
}

/* 모바일 최적화 */
@media (max-width: 768px) {
    .view-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        padding: 0.75rem 1rem;
    }
    
    .view-meta .meta-left {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
    }
    
    .view-meta .meta-right {
        border-top: 1px solid var(--color-gray-200);
        padding-top: 0.5rem;
        width: 100%;
    }
}

/* ==========================================================================
   CHATBOT — AI 도우미 플로팅 버튼 & 채팅 패널
   ========================================================================== */

/* ── 플로팅 버튼 ── */
.chatbot-fab {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-accent-gold), var(--color-primary));
    border: none;
    cursor: pointer;
    z-index: 1035;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(212, 168, 67, 0.4);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    animation: chatbot-pulse 3s ease-in-out infinite;
}

.chatbot-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(212, 168, 67, 0.6);
}

.chatbot-fab i {
    font-size: 26px;
    color: var(--color-white);
    transition: transform var(--transition-fast);
}

.chatbot-fab.active i.fa-comment-dots {
    display: none;
}

.chatbot-fab.active i.fa-xmark {
    display: inline-block;
}

.chatbot-fab i.fa-xmark {
    display: none;
}

@keyframes chatbot-pulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(212, 168, 67, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(212, 168, 67, 0.7), 0 0 0 10px rgba(212, 168, 67, 0.1); }
}

/* ── 채팅 패널 ── */
.chatbot-panel {
    position: fixed;
    bottom: 100px;
    right: 28px;
    width: 380px;
    height: 520px;
    background: rgba(10, 22, 40, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(74, 144, 217, 0.2);
    border-radius: 20px;
    z-index: 1035;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05);
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.chatbot-panel.open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

/* ── 채팅 헤더 ── */
.chatbot-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(0, 61, 165, 0.6), rgba(0, 32, 92, 0.8));
    border-bottom: 1px solid rgba(74, 144, 217, 0.15);
    flex-shrink: 0;
}

.chatbot-avatar {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-accent-gold), var(--color-primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.chatbot-avatar i {
    font-size: 18px;
    color: var(--color-white);
}

.chatbot-header-info {
    flex: 1;
    min-width: 0;
}

.chatbot-header-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-white);
    margin: 0;
    line-height: 1.3;
}

.chatbot-header-subtitle {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
    line-height: 1.3;
}

.chatbot-close-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: background var(--transition-fast);
    flex-shrink: 0;
}

.chatbot-close-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ── 메시지 영역 ── */
.chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    scroll-behavior: smooth;
}

.chatbot-messages::-webkit-scrollbar {
    width: 4px;
}

.chatbot-messages::-webkit-scrollbar-track {
    background: transparent;
}

.chatbot-messages::-webkit-scrollbar-thumb {
    background: rgba(74, 144, 217, 0.3);
    border-radius: var(--radius-full);
}

/* ── 메시지 버블 ── */
.chatbot-msg {
    display: flex;
    gap: 8px;
    max-width: 88%;
    animation: chatbot-msg-in 0.3s ease-out;
}

.chatbot-msg.user {
    flex-direction: row-reverse;
    align-self: flex-end;
}

.chatbot-msg.ai {
    align-self: flex-start;
}

.chatbot-msg-icon {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 13px;
    margin-top: 2px;
}

.chatbot-msg.ai .chatbot-msg-icon {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    color: var(--color-white);
}

.chatbot-msg.user .chatbot-msg-icon {
    background: linear-gradient(135deg, var(--color-accent-gold), #b8912e);
    color: var(--color-white);
}

.chatbot-msg-bubble {
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 13.5px;
    line-height: 1.6;
    word-break: break-word;
}

.chatbot-msg.ai .chatbot-msg-bubble {
    background: rgba(74, 144, 217, 0.12);
    color: rgba(255, 255, 255, 0.92);
    border-bottom-left-radius: 4px;
}

.chatbot-msg.user .chatbot-msg-bubble {
    background: linear-gradient(135deg, rgba(212, 168, 67, 0.25), rgba(184, 145, 46, 0.18));
    color: rgba(255, 255, 255, 0.95);
    border-bottom-right-radius: 4px;
}

.chatbot-msg-bubble p {
    margin: 0 0 6px 0;
}

.chatbot-msg-bubble p:last-child {
    margin-bottom: 0;
}

.chatbot-msg-bubble strong {
    color: var(--color-accent-gold);
    font-weight: 600;
}

@keyframes chatbot-msg-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ── 타이핑 인디케이터 ── */
.chatbot-typing {
    display: flex;
    gap: 8px;
    align-self: flex-start;
    max-width: 88%;
}

.chatbot-typing-dots {
    padding: 12px 18px;
    background: rgba(74, 144, 217, 0.12);
    border-radius: 16px;
    border-bottom-left-radius: 4px;
    display: flex;
    gap: 5px;
    align-items: center;
}

.chatbot-typing-dots span {
    width: 7px;
    height: 7px;
    border-radius: var(--radius-full);
    background: var(--color-primary-light);
    animation: chatbot-typing-bounce 1.4s ease-in-out infinite;
}

.chatbot-typing-dots span:nth-child(2) {
    animation-delay: 0.15s;
}

.chatbot-typing-dots span:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes chatbot-typing-bounce {
    0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
    30% { opacity: 1; transform: translateY(-4px); }
}

/* ── 입력 영역 ── */
.chatbot-input-area {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid rgba(74, 144, 217, 0.12);
    background: rgba(0, 20, 50, 0.5);
    flex-shrink: 0;
}

.chatbot-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(74, 144, 217, 0.2);
    border-radius: 24px;
    padding: 10px 16px;
    font-size: 13.5px;
    color: var(--color-white);
    outline: none;
    font-family: var(--font-primary);
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.chatbot-input::placeholder {
    color: rgba(255, 255, 255, 0.35);
}

.chatbot-input:focus {
    border-color: var(--color-primary-light);
    background: rgba(255, 255, 255, 0.1);
}

.chatbot-send-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: none;
    background: linear-gradient(135deg, var(--color-accent-gold), var(--color-primary));
    color: var(--color-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.chatbot-send-btn:hover {
    transform: scale(1.08);
}

.chatbot-send-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

/* ── 환영 메시지 (첫 오픈 시) ── */
.chatbot-welcome {
    text-align: center;
    padding: 24px 16px 8px;
}

.chatbot-welcome-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-accent-gold), var(--color-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 24px;
    color: var(--color-white);
}

.chatbot-welcome h4 {
    color: var(--color-white);
    font-size: 16px;
    font-weight: 700;
    margin: 0 0 6px;
}

.chatbot-welcome p {
    color: rgba(255, 255, 255, 0.55);
    font-size: 12.5px;
    line-height: 1.5;
    margin: 0;
}

/* ── 퀵 액션 버튼 ── */
.chatbot-quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 8px 16px 4px;
}

.chatbot-quick-btn {
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid rgba(74, 144, 217, 0.25);
    background: rgba(74, 144, 217, 0.08);
    color: rgba(255, 255, 255, 0.75);
    font-size: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-primary);
}

.chatbot-quick-btn:hover {
    background: rgba(74, 144, 217, 0.2);
    border-color: var(--color-primary-light);
    color: var(--color-white);
}

/* ── 에러 메시지 ── */
.chatbot-error {
    padding: 8px 14px;
    background: rgba(200, 16, 46, 0.15);
    border: 1px solid rgba(200, 16, 46, 0.3);
    border-radius: 12px;
    color: #ff8a9e;
    font-size: 12.5px;
    text-align: center;
    animation: chatbot-msg-in 0.3s ease-out;
}

/* ── 모바일 반응형 ── */
@media (max-width: 768px) {
    .chatbot-fab {
        bottom: 20px;
        right: 20px;
        width: 54px;
        height: 54px;
    }

    .chatbot-fab i {
        font-size: 23px;
    }

    .chatbot-panel {
        bottom: 0;
        right: 0;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        border-radius: 0;
        border: none;
    }

    .chatbot-panel.open {
        transform: translateY(0) scale(1);
    }

    .chatbot-header {
        padding: 14px 16px;
        padding-top: calc(14px + env(safe-area-inset-top, 0px));
    }


    .chatbot-input-area {
        padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
    }
}

/* ==========================================================================
   ACCOUNT RECOVERY MODAL — 아이디/비밀번호 찾기 모달
   ========================================================================== */
.recovery-modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    animation: recoveryOverlayIn 0.25s ease-out;
}

@keyframes recoveryOverlayIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes recoveryModalIn {
    from { opacity: 0; transform: translateY(20px) scale(0.97); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.recovery-modal {
    background: var(--color-gray-50, #fafafa);
    border-radius: var(--radius-lg, 12px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.05);
    width: 100%;
    max-width: 440px;
    overflow: hidden;
    animation: recoveryModalIn 0.3s ease-out;
}

.recovery-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    background: linear-gradient(135deg, var(--color-primary, #1a5276), var(--color-primary-dark, #0d2b3e));
    color: #FFFFFF;
}

.recovery-modal-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    color: #FFFFFF;
}

.recovery-modal-header h3 i {
    color: rgba(255, 255, 255, 0.85) !important;
}

.recovery-modal-close {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: #FFFFFF;
    font-size: 1.4rem;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    line-height: 1;
}

.recovery-modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

.recovery-modal-body {
    padding: 1.5rem;
}

.recovery-form-group {
    margin-bottom: 1.25rem;
}

.recovery-form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    color: var(--color-gray-700, #374151);
}

.recovery-form-group label i {
    margin-right: 0.35rem;
    color: var(--color-primary, #1a5276);
    width: 16px;
    text-align: center;
}

.recovery-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--color-gray-300, #d1d5db);
    border-radius: var(--radius-md, 8px);
    font-size: 0.95rem;
    background: #FFFFFF;
    color: var(--color-gray-800, #1f2937);
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
}

.recovery-input:focus {
    outline: none;
    border-color: var(--color-primary, #1a5276);
    box-shadow: 0 0 0 3px rgba(26, 82, 118, 0.12);
}

.recovery-input::placeholder {
    color: var(--color-gray-400, #9ca3af);
}

.recovery-submit-btn {
    width: 100%;
    padding: 0.85rem;
    border: none;
    border-radius: var(--radius-md, 8px);
    font-size: 1rem;
    font-weight: 600;
    color: #FFFFFF;
    background: linear-gradient(135deg, var(--color-primary, #1a5276), var(--color-primary-dark, #0d2b3e));
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: transform 0.15s, box-shadow 0.2s, opacity 0.2s;
    margin-top: 0.5rem;
}

.recovery-submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26, 82, 118, 0.35);
}

.recovery-submit-btn:active {
    transform: translateY(0);
}

.recovery-submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.recovery-submit-btn-accent {
    background: linear-gradient(135deg, var(--color-accent, #D4A843), #b8912e);
}

.recovery-submit-btn-accent:hover {
    box-shadow: 0 4px 12px rgba(212, 168, 67, 0.35);
}

.recovery-result {
    margin-top: 1.25rem;
    animation: recoveryResultIn 0.35s ease-out;
}

@keyframes recoveryResultIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.recovery-result-success {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    border: 1px solid #a7f3d0;
    border-radius: var(--radius-md, 8px);
}

.recovery-result-email {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary, #1a5276);
    padding: 0.5rem 1rem;
    background: rgba(26, 82, 118, 0.08);
    border-radius: var(--radius-md, 8px);
    display: inline-block;
    margin: 0.5rem 0;
    letter-spacing: 0.5px;
}

.recovery-go-login-btn {
    margin-top: 1rem;
    padding: 0.6rem 1.5rem;
    border: none;
    border-radius: var(--radius-md, 8px);
    background: var(--color-primary, #1a5276);
    color: #FFFFFF;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
}

.recovery-go-login-btn:hover {
    background: var(--color-primary-dark, #0d2b3e);
    transform: translateY(-1px);
}

.recovery-result-error {
    text-align: center;
    padding: 1.25rem;
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    border: 1px solid #fecaca;
    border-radius: var(--radius-md, 8px);
}

.recovery-result-error p {
    margin: 0.5rem 0 0;
    font-size: 0.9rem;
    color: #dc2626;
    font-weight: 500;
}

/* Mobile responsive */
@media (max-width: 480px) {
    .recovery-modal {
        max-width: 100%;
        margin: 0 0.5rem;
        border-radius: var(--radius-md, 8px);
    }

    .recovery-modal-header {
        padding: 1rem 1.25rem;
    }

    .recovery-modal-body {
        padding: 1.25rem;
    }

    .recovery-modal-header h3 {
        font-size: 1rem;
    }
}

/* YouTube Channel Link & Date Styles */
.yt-channel-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #ff0000;
    color: #ffffff !important;
    font-size: 0.88rem;
    font-weight: 600;
    border-radius: 20px;
    text-decoration: none;
    transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(255, 0, 0, 0.3);
}

.yt-channel-link:hover {
    background: #cc0000;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 0, 0, 0.4);
}

.yt-channel-link i {
    font-size: 1.1rem;
}

.yt-sidebar-date {
    font-size: 0.78rem;
    color: var(--color-gray-500, #6b7280);
    margin-top: 0.25rem;
    display: block;
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 0.3; }
}

.yt-loading-skeleton {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
    width: 100%;
}

    @media (max-width: 768px) {
        .yt-loading-skeleton {
            grid-template-columns: 1fr;
        }
    }
}

/* YouTube Slider Background */
.slider-yt-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.slider-yt-bg iframe {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 56.25vw;
    min-height: 100%;
    min-width: 177.77vh;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

/* ==========================================================================
   CARD NEWS 1:1 SQUARE GALLERY STYLES
   ========================================================================== */
.cardnews-section {
    padding: 4rem 0;
    background: #f8fafc;
}

.cardnews-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

@media (max-width: 1024px) {
    .cardnews-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.25rem;
    }
}

@media (max-width: 768px) {
    .cardnews-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .cardnews-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
}

.cardnews-card {
    background: #ffffff;
    border-radius: var(--radius-lg, 16px);
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.cardnews-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 25px rgba(0, 61, 165, 0.12);
    border-color: rgba(0, 61, 165, 0.2);
}

/* 1:1 Square Thumbnail Container */
.cardnews-thumb-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: #e2e8f0;
}

.cardnews-thumb-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.35s ease;
}

.cardnews-card:hover .cardnews-thumb-wrap img {
    transform: scale(1.06);
}

.cardnews-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(0, 61, 165, 0.9);
    backdrop-filter: blur(4px);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    z-index: 2;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.cardnews-info {
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.cardnews-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-gray-900, #111827);
    line-height: 1.45;
    margin: 0 0 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: keep-all;
}

.cardnews-summary {
    font-size: 0.85rem;
    color: var(--color-gray-600, #4b5563);
    line-height: 1.5;
    margin: 0 0 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: keep-all;
}

.cardnews-meta {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--color-gray-400, #9ca3af);
    border-top: 1px solid var(--color-gray-100, #f3f4f6);
    padding-top: 0.75rem;
}


