/* === Design System === */
:root {
    --bg-primary: #FAF9F6;
    --bg-surface: #FFFFFF;
    --bg-elevated: #F5F3EF;
    --bg-hover: #F0EDE8;

    --text-primary: #1A1A1A;
    --text-secondary: #5C5C5C;
    --text-muted: #9A9A9A;
    --text-inverse: #FFFFFF;

    --accent: #B87333;
    --accent-dim: #9A5E28;
    --accent-glow: rgba(184, 115, 51, 0.12);

    --status-ongoing: #2D8A5E;
    --status-ongoing-dim: rgba(45, 138, 94, 0.08);
    --status-preparing: #B8860B;
    --status-preparing-dim: rgba(184, 134, 11, 0.08);
    --status-upcoming: #4A7DB3;
    --status-upcoming-dim: rgba(74, 125, 179, 0.08);
    --status-ended: #9A9A9A;
    --status-ended-dim: rgba(154, 154, 154, 0.06);

    --border-subtle: rgba(0, 0, 0, 0.06);
    --border-medium: rgba(0, 0, 0, 0.1);
    --border-strong: rgba(0, 0, 0, 0.14);

    --font-display: 'Noto Serif SC', Georgia, 'Times New Roman', serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

    --radius: 6px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08);

    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

/* === View Switching === */
#listView {
    transition: opacity var(--transition-base);
}

.detail-view {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    z-index: 100;
    overflow-y: auto;
    opacity: 1;
    transform: translateY(0);
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.detail-view.hidden {
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
}

/* === Header === */
.site-header {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    position: relative;
    overflow: hidden;
}

.site-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-dim) 0%, var(--accent) 50%, var(--accent-dim) 100%);
    opacity: 0.8;
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 56px 32px 40px;
}

.masthead {
    margin-bottom: 40px;
    animation: fadeSlideDown 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

.edition-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

.masthead-title {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 20px;
    display: flex;
    align-items: baseline;
    gap: 20px;
    flex-wrap: wrap;
}

.title-main {
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.title-sub {
    font-family: var(--font-body);
    font-size: clamp(1rem, 2vw, 1.3rem);
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.title-desc {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-tertiary);
    background: var(--bg-main);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    padding: 2px 10px;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.masthead-lead {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 560px;
    line-height: 1.7;
}

.contact-group {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
    flex-shrink: 0;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    background: var(--accent);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.contact-btn:hover {
    background: var(--accent-dim);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(184, 115, 51, 0.3);
}

.contact-chip {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 3px 8px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    white-space: nowrap;
}

.update-notice {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    padding: 6px 16px;
    background: var(--accent-glow);
    border: 1px solid rgba(184, 115, 51, 0.2);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--accent-dim);
    font-family: var(--font-body);
    font-weight: 500;
    animation: fadeSlideUp 0.7s 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

.update-pulse {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

.letter-banner {
    margin-top: 28px;
    padding: 20px 24px;
    background: linear-gradient(135deg, #fff9f0 0%, #fff5e6 100%);
    border: 1px solid rgba(184, 115, 51, 0.15);
    border-radius: var(--radius);
    position: relative;
    animation: fadeSlideUp 0.7s 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

.letter-banner.hidden {
    display: none;
}

.letter-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.letter-icon {
    color: var(--accent);
    display: flex;
    align-items: center;
}

.letter-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
}

.letter-close {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    padding: 0;
}

.letter-close:hover {
    background: var(--border-subtle);
    color: var(--text-primary);
}

.letter-body {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.letter-body p {
    margin-bottom: 8px;
}

.letter-body p:last-child {
    margin-bottom: 0;
}

.letter-highlight {
    color: var(--accent-dim);
    font-weight: 600;
}

.letter-link {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
    cursor: pointer;
}

.letter-link:hover {
    color: var(--accent-dim);
}

.letter-sign {
    text-align: right;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 4px;
}

.letter-slogan {
    text-align: center;
    color: var(--accent);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    margin: 16px 0 8px;
    letter-spacing: 0.02em;
}

/* === Controls === */
.header-controls {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    animation: fadeSlideDown 0.7s 0.15s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

.search-field {
    position: relative;
    flex: 1;
    min-width: 280px;
    max-width: 420px;
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    transition: color var(--transition-fast);
}

.search-field input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    background: var(--bg-primary);
    border: 1.5px solid var(--border-subtle);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    transition: all var(--transition-fast);
}

.search-field input::placeholder {
    color: var(--text-muted);
}

.search-field input:focus {
    border-color: var(--accent);
    background: var(--bg-surface);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

.search-field:focus-within .search-icon {
    color: var(--accent);
}

.filter-tabs {
    display: flex;
    gap: 4px;
    background: var(--bg-primary);
    border: 1.5px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 4px;
}

.filter-tab {
    padding: 8px 16px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 4px;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.filter-tab:hover {
    color: var(--text-secondary);
    background: var(--border-subtle);
}

.filter-tab.active {
    color: var(--text-inverse);
    background: var(--accent);
    box-shadow: 0 2px 8px rgba(184, 115, 51, 0.3);
}

/* === Stats Rail === */
.main-stage {
    padding: 40px 0 80px;
}

.stats-rail {
    display: flex;
    align-items: center;
    gap: 0;
    margin-bottom: 32px;
    padding: 24px 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    animation: fadeSlideUp 0.7s 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

.stat-unit {
    flex: 1;
    text-align: center;
    padding: 8px 16px;
}

.stat-figure {
    font-family: var(--font-display);
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.stat-caption {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-subtle);
}

/* === Grid Header === */
.grid-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-subtle);
    animation: fadeSlideUp 0.6s 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

.grid-count {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

.grid-sort {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.sort-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 0.8rem;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.sort-btn:hover {
    color: var(--text-secondary);
}

.sort-btn.active {
    color: var(--accent);
    font-weight: 600;
}

/* === Competition Grid === */
.competition-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 16px;
}

.competition-grid.hidden {
    display: none;
}

/* === Competition Card === */
.competition-card {
    background: var(--bg-surface);
    padding: 28px;
    position: relative;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    gap: 14px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    opacity: 0;
    transform: translateY(24px);
    animation: cardEnter 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.competition-card:nth-child(1) { animation-delay: 0.1s; }
.competition-card:nth-child(2) { animation-delay: 0.15s; }
.competition-card:nth-child(3) { animation-delay: 0.2s; }
.competition-card:nth-child(4) { animation-delay: 0.25s; }
.competition-card:nth-child(5) { animation-delay: 0.3s; }
.competition-card:nth-child(6) { animation-delay: 0.35s; }
.competition-card:nth-child(7) { animation-delay: 0.4s; }
.competition-card:nth-child(8) { animation-delay: 0.45s; }

.competition-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--radius) var(--radius) 0 0;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.competition-card:hover {
    background: var(--bg-surface);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.competition-card:hover::before {
    opacity: 1;
}

.competition-card.status-ongoing-card:hover::before { background: var(--status-ongoing); opacity: 1; }
.competition-card.status-preparing-card:hover::before { background: var(--status-preparing); opacity: 1; }
.competition-card.status-upcoming-card:hover::before { background: var(--status-upcoming); opacity: 1; }
.competition-card.status-ended-card:hover::before { background: var(--status-ended); opacity: 1; }

/* === Compact List Mode === */
.competition-grid.compact-mode {
    display: flex;
    flex-direction: column;
    gap: 10px;
    grid-template-columns: none;
}

.competition-card.compact {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    gap: 16px;
}

.competition-card.compact .compact-main {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
}

.competition-card.compact .card-title {
    font-size: 1rem;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.competition-card.compact .compact-schedule {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.competition-card.compact .compact-time {
    font-size: 0.8rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.competition-card.compact .compact-label {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-right: 6px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    flex: 1;
    transition: color var(--transition-fast);
}

.competition-card:hover .card-title {
    color: var(--accent-dim);
}

.status-badge {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 4px;
    white-space: nowrap;
    flex-shrink: 0;
    border: 1px solid transparent;
    transition: transform var(--transition-fast);
}

.competition-card:hover .status-badge {
    transform: scale(1.02);
}

.status-ongoing {
    color: var(--status-ongoing);
    background: var(--status-ongoing-dim);
    border-color: rgba(45, 138, 94, 0.2);
}

.status-preparing {
    color: var(--status-preparing);
    background: var(--status-preparing-dim);
    border-color: rgba(184, 134, 11, 0.2);
}

.status-upcoming {
    color: var(--status-upcoming);
    background: var(--status-upcoming-dim);
    border-color: rgba(74, 125, 179, 0.2);
}

.status-ended {
    color: var(--status-ended);
    background: var(--status-ended-dim);
    border-color: rgba(154, 154, 154, 0.15);
}

.card-meta-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.card-category {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
}

.card-level {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-muted);
    padding: 2px 8px;
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
}

.card-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-schedule {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 14px 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.schedule-item {
    display: flex;
    align-items: baseline;
    gap: 10px;
    font-size: 0.82rem;
}

.schedule-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    min-width: 40px;
    flex-shrink: 0;
}

.schedule-value {
    color: var(--text-secondary);
    font-weight: 500;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.card-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
    padding: 3px 8px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    letter-spacing: 0.03em;
    transition: all var(--transition-fast);
}

.competition-card:hover .tag {
    background: var(--bg-hover);
    border-color: var(--border-medium);
}

.card-actions {
    display: flex;
    gap: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: var(--text-inverse);
}

.btn-primary:hover {
    background: var(--accent-dim);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(184, 115, 51, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
    border-color: var(--border-strong);
    color: var(--text-primary);
    background: var(--bg-elevated);
    transform: translateY(-1px);
}

/* === Detail View === */
.detail-header {
    position: sticky;
    top: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    z-index: 10;
    padding: 16px 0;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.back-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-medium);
    color: var(--text-primary);
    transform: translateX(-2px);
}

.detail-body {
    padding: 40px 0 80px;
}

.detail-hero {
    margin-bottom: 40px;
    animation: fadeSlideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

.detail-status-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.detail-title {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 12px;
}

.detail-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.detail-meta-item {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

.detail-meta-item strong {
    color: var(--accent);
    font-weight: 500;
}

.detail-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.75;
    max-width: 720px;
}

.detail-schedule {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.schedule-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 20px;
    transition: all var(--transition-fast);
}

.schedule-card:hover {
    border-color: var(--border-medium);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.schedule-card-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.schedule-card-value {
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.5;
}

/* === Detail Tabs === */
.detail-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 32px;
    animation: fadeSlideUp 0.5s 0.1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

.detail-tab {
    padding: 12px 24px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: -1px;
}

.detail-tab:hover {
    color: var(--text-secondary);
}

.detail-tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.detail-tab-content {
    display: none;
    animation: fadeSlideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

.detail-tab-content.active {
    display: block;
}

/* === Detail Content Sections === */
.detail-section {
    margin-bottom: 32px;
}

.detail-section-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-subtle);
}

.detail-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.detail-list-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.detail-list-item::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    margin-top: 8px;
    flex-shrink: 0;
}

.detail-list-item strong {
    color: var(--text-primary);
    font-weight: 600;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}

.detail-grid-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 20px;
    transition: all var(--transition-fast);
}

.detail-grid-item:hover {
    border-color: var(--border-medium);
}

.detail-grid-item-title {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 8px;
}

.detail-grid-item-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.placeholder-notice {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.placeholder-notice svg {
    margin-bottom: 16px;
    color: var(--border-medium);
}

/* === Empty State === */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 40px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    animation: cardEnter 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.empty-state h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* === Footer === */
.site-footer {
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-surface);
    padding: 32px 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-brand {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.footer-tagline {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-legal {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: right;
}

/* === Animations === */
@keyframes fadeSlideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes cardEnter {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === Responsive === */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .header-inner {
        padding: 36px 20px 28px;
    }

    .masthead-title {
        flex-direction: column;
        gap: 8px;
    }

    .header-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .search-field {
        max-width: none;
        min-width: auto;
    }

    .filter-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .stats-rail {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
        padding: 20px 0;
    }

    .stat-divider {
        display: none;
    }

    .stat-unit {
        text-align: left;
        padding: 0;
        border-bottom: 1px solid var(--border-subtle);
        padding-bottom: 16px;
    }

    .stat-unit:nth-last-child(-n+2) {
        border-bottom: none;
        padding-bottom: 0;
    }

    .competition-grid {
        grid-template-columns: 1fr;
    }

    .competition-card {
        padding: 20px;
    }

    .competition-card.compact {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        padding: 14px 16px;
    }

    .competition-card.compact .compact-schedule {
        width: 100%;
        justify-content: space-between;
    }

    .contact-group {
        margin-left: 0;
        margin-top: 8px;
        flex-wrap: wrap;
    }

    .masthead-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .grid-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .detail-schedule {
        grid-template-columns: 1fr;
    }

    .detail-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .detail-tab {
        padding: 12px 16px;
        white-space: nowrap;
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-legal {
        text-align: left;
    }
}

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* === Selection === */
::selection {
    background: var(--accent-glow);
    color: var(--text-primary);
}

/* === View Toggle === */
.view-toggle-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-subtle);
    animation: fadeSlideUp 0.6s 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

.view-toggle {
    display: flex;
    gap: 4px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 3px;
}

.view-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.view-btn:hover {
    color: var(--text-secondary);
    background: var(--border-subtle);
}

.view-btn.active {
    color: var(--text-inverse);
    background: var(--accent);
    box-shadow: 0 2px 8px rgba(184, 115, 51, 0.3);
}

.card-mode-toggle {
    display: flex;
    gap: 4px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 3px;
}

.mode-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.mode-btn:hover {
    color: var(--text-secondary);
    background: var(--border-subtle);
}

.mode-btn.active {
    color: var(--text-inverse);
    background: var(--accent);
    box-shadow: 0 2px 8px rgba(184, 115, 51, 0.3);
}

/* === Calendar View === */
.calendar-view {
    animation: fadeSlideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}

.calendar-view.hidden {
    display: none;
}

.calendar-year-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.calendar-year-label {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
}

.calendar-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.calendar-nav-btn:hover {
    background: var(--bg-elevated);
    border-color: var(--border-medium);
}

.calendar-months {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.calendar-month-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 20px;
    transition: all var(--transition-fast);
}

.calendar-month-card:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-md);
}

.calendar-month-header {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-subtle);
}

.calendar-month-name {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.calendar-month-count {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

.calendar-events {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.calendar-event {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 12px;
    background: var(--bg-elevated);
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.calendar-event:hover {
    background: var(--bg-hover);
    transform: translateX(4px);
}

.calendar-event-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-top: 6px;
    flex-shrink: 0;
}

.calendar-event-dot.registration {
    background: var(--status-ongoing);
}

.calendar-event-dot.competition {
    background: var(--status-preparing);
}

.calendar-event-dot.deadline {
    background: var(--status-upcoming);
}

.calendar-event-info {
    flex: 1;
    min-width: 0;
}

.calendar-event-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.calendar-event-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.calendar-event-type {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 2px 6px;
    border-radius: 2px;
    flex-shrink: 0;
    margin-top: 2px;
}

.calendar-event-type.registration {
    color: var(--status-ongoing);
    background: var(--status-ongoing-dim);
}

.calendar-event-type.competition {
    color: var(--status-preparing);
    background: var(--status-preparing-dim);
}

.calendar-event-type.deadline {
    color: var(--status-upcoming);
    background: var(--status-upcoming-dim);
}

.calendar-legend {
    display: flex;
    gap: 20px;
    margin-bottom: 24px;
    padding: 12px 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
}

.calendar-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.calendar-legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

/* === Scrollbar === */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-strong);
}

/* === Resource Cards === */
.resource-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (max-width: 640px) {
    .resource-grid {
        grid-template-columns: 1fr;
    }
}

.resource-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 24px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.resource-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.resource-card:hover {
    border-color: var(--border-medium);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
}

.resource-card:hover::before {
    opacity: 1;
}

.resource-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--accent-glow);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.resource-card-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.resource-card-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.resource-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.resource-card-count {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.resource-card-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 6px;
    border: 1px solid var(--accent);
    background: var(--bg-surface);
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.resource-card-btn:hover {
    background: var(--accent);
    color: var(--text-inverse);
}

.resource-card.expanded {
    grid-column: 1 / -1;
    cursor: default;
    transform: none;
    border-color: var(--border-medium);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    padding: 0;
    overflow: hidden;
}

.resource-card.expanded:hover {
    transform: none;
}

.resource-card-info {
    padding: 24px;
}

.resource-card.expanded .resource-card-info {
    display: none;
}

.resource-card-gallery {
    display: none;
    flex-direction: column;
    gap: 0;
}

.resource-card.expanded .resource-card-gallery {
    display: flex;
}

.gallery-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-subtle);
    background: var(--bg-surface);
}

.gallery-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-medium);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-family: var(--font-body);
    cursor: pointer;
    transition: all 0.15s ease;
}

.gallery-back:hover {
    background: var(--accent);
    color: var(--text-inverse);
    border-color: var(--accent);
}

.gallery-counter {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.gallery-body {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 20px 16px;
    background: var(--bg-main);
    min-height: 300px;
}

.gallery-img {
    max-width: 100%;
    max-height: 420px;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    flex: 1;
}

.gallery-nav {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border-medium);
    background: var(--bg-surface);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.gallery-nav:hover {
    background: var(--accent);
    color: var(--text-inverse);
    border-color: var(--accent);
}

.gallery-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.gallery-nav:disabled:hover {
    background: var(--bg-surface);
    color: var(--text-secondary);
    border-color: var(--border-medium);
}

.gallery-dots {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px 16px;
    background: var(--bg-main);
}

.gallery-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-medium);
    cursor: pointer;
    transition: all 0.2s ease;
}

.gallery-dot.active {
    background: var(--accent);
    transform: scale(1.2);
}

/* === Lightbox === */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox.hidden {
    display: none;
}

.lightbox-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(4px);
}

.lightbox-content {
    position: relative;
    z-index: 1;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    gap: 16px;
}

.lightbox-image-wrap {
    position: relative;
    max-width: 80vw;
    max-height: 85vh;
    background: var(--bg-surface);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
}

.lightbox-image-wrap img {
    display: block;
    max-width: 80vw;
    max-height: 78vh;
    object-fit: contain;
}

.lightbox-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px 16px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: #fff;
    font-size: 0.85rem;
    text-align: center;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 2;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s ease;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-nav {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s ease;
    flex-shrink: 0;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.25);
}

.lightbox-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

@media (max-width: 640px) {
    .lightbox-content {
        gap: 8px;
        padding: 0 8px;
    }
    .lightbox-image-wrap {
        max-width: 70vw;
    }
    .lightbox-image-wrap img {
        max-width: 70vw;
    }
    .lightbox-nav {
        width: 36px;
        height: 36px;
    }
}

/* === QR Code Modal === */
.qr-modal {
    position: fixed;
    inset: 0;
    z-index: 2100;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-modal.hidden {
    display: none;
}

.qr-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
}

.qr-modal-content {
    position: relative;
    z-index: 1;
    background: var(--bg-surface);
    border-radius: 16px;
    padding: 40px 32px 32px;
    max-width: 360px;
    width: 90vw;
    text-align: center;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.2);
}

.qr-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: var(--bg-hover);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.qr-modal-close:hover {
    background: var(--border-medium);
    color: var(--text-primary);
}

.qr-modal-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.qr-modal-image {
    width: 220px;
    height: 220px;
    margin: 0 auto 20px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}

.qr-modal-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.qr-modal-tags {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.qr-modal-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 4px 10px;
    background: var(--accent-glow);
    color: var(--accent);
    border-radius: 4px;
}

.qr-modal-tip {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* === Notice Modal === */
.notice-modal {
    position: fixed;
    inset: 0;
    z-index: 2200;
    display: flex;
    align-items: center;
    justify-content: center;
}

.notice-modal.hidden {
    display: none;
}

.notice-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.notice-modal-content {
    position: relative;
    z-index: 1;
    background: var(--bg-surface);
    border-radius: 16px;
    padding: 36px 32px 32px;
    max-width: 360px;
    width: 90vw;
    text-align: center;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.2);
}

.notice-modal-icon {
    color: var(--accent);
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
}

.notice-modal-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.notice-modal-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.notice-modal-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.notice-modal-btn {
    padding: 10px 24px;
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    flex: 1;
}

.notice-modal-btn-primary {
    background: var(--accent);
    color: var(--text-inverse);
}

.notice-modal-btn-primary:hover {
    background: var(--accent-dim);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(184, 115, 51, 0.3);
}

.notice-modal-btn-secondary {
    background: var(--bg-elevated);
    color: var(--text-secondary);
    border: 1px solid var(--border-medium);
}

.notice-modal-btn-secondary:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}