/* ===== CSS Variables ===== */
:root {
    --color-navy: #1a2744;
    --color-navy-dark: #0f1829;
    --color-navy-light: #2a3d5c;
    --color-gold: #c9a227;
    --color-gold-light: #e8c547;
    --color-cream: #faf8f3;
    --color-cream-dark: #f0ebe0;
    --color-text: #2c2c2c;
    --color-text-muted: #6b6b6b;
    --color-white: #ffffff;
    --color-border: #d4cfc4;
    
    --font-display: 'Cinzel', serif;
    --font-body: 'Libre Baskerville', Georgia, serif;
    
    --shadow-sm: 0 1px 3px rgba(26, 39, 68, 0.12);
    --shadow-md: 0 4px 12px rgba(26, 39, 68, 0.15);
    --shadow-lg: 0 8px 30px rgba(26, 39, 68, 0.2);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    --transition: 0.3s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-cream);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== Header ===== */
.site-header {
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
    color: var(--color-white);
    padding: 2.5rem 1.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.site-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5v50M5 30h50' stroke='%23ffffff' stroke-opacity='0.03' stroke-width='1' fill='none'/%3E%3C/svg%3E");
    pointer-events: none;
}

.header-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.header-icon {
    font-size: 2.5rem;
    color: var(--color-gold);
    margin-bottom: 0.75rem;
    text-shadow: 0 2px 10px rgba(201, 162, 39, 0.3);
}

.site-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.site-subtitle {
    font-size: 1rem;
    color: var(--color-gold-light);
    font-style: italic;
    opacity: 0.9;
}

/* ===== Navigation ===== */
.main-nav {
    background: var(--color-navy-light);
    border-bottom: 3px solid var(--color-gold);
    box-shadow: var(--shadow-sm);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.nav-link {
    display: inline-block;
    padding: 1rem 1.5rem;
    color: var(--color-white);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--color-gold);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link:hover {
    color: var(--color-gold-light);
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    padding: 2.5rem 1.5rem;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

/* ===== Page Headers ===== */
.page-header {
    text-align: center;
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border);
}

.page-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2rem);
    color: var(--color-navy);
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.page-subtitle {
    color: var(--color-text-muted);
    font-style: italic;
}

/* ===== Agenda List ===== */
.agenda-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.agenda-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--color-gold);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    display: block;
}

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

.agenda-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    flex-wrap: wrap;
}

.agenda-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--color-navy);
    margin-bottom: 0.25rem;
}

.agenda-cycle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background: var(--color-navy);
    color: var(--color-gold);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50%;
    flex-shrink: 0;
}

.agenda-date {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.agenda-date-day {
    font-weight: 700;
    color: var(--color-navy);
}

/* ===== Agenda Detail ===== */
.agenda-detail-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.agenda-detail-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2rem);
    color: var(--color-navy);
    margin-bottom: 0.5rem;
}

.agenda-detail-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    color: var(--color-text-muted);
}

.agenda-detail-cycle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.cycle-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    background: var(--color-gold);
    color: var(--color-navy);
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 50%;
}

/* ===== Print Buttons ===== */
.print-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
}

.print-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    background: var(--color-navy);
    color: var(--color-white);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.print-btn:hover {
    background: var(--color-gold);
    color: var(--color-navy);
}

.print-btn svg {
    flex-shrink: 0;
}

/* ===== Modal / Bottom Sheet ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 24, 41, 0.6);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal-sheet {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 400px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.95) translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.show .modal-sheet {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-cream-dark);
}

.modal-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--color-navy);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.75rem;
    color: var(--color-text-muted);
    cursor: pointer;
    line-height: 1;
    padding: 0;
    transition: color 0.2s ease;
}

.modal-close:hover {
    color: var(--color-navy);
}

.modal-options {
    padding: 0.5rem 0;
}

.modal-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    text-decoration: none;
    color: var(--color-text);
    transition: background 0.2s ease;
}

.modal-option:hover {
    background: var(--color-cream);
}

.modal-option:active {
    background: var(--color-cream-dark);
}

.option-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-cream);
    border-radius: var(--radius-md);
    color: var(--color-navy);
    flex-shrink: 0;
}

.option-text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.option-title {
    font-weight: 600;
    color: var(--color-navy);
    font-size: 1rem;
}

.option-desc {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* Loading State */
.modal-loading {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    gap: 1.25rem;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-cream-dark);
    border-top-color: var(--color-navy);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-text {
    font-size: 1rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* Mobile: Bottom sheet style */
@media (max-width: 600px) {
    .modal-overlay {
        align-items: flex-end;
    }
    
    .modal-sheet {
        width: 100%;
        max-width: none;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        transform: translateY(100%);
    }
    
    .modal-overlay.show .modal-sheet {
        transform: translateY(0);
    }
}

/* ===== Song List ===== */
.song-list {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.song-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-cream-dark);
    align-items: center;
    transition: var(--transition);
}

.song-item:last-child {
    border-bottom: none;
}

.song-item:hover {
    background: var(--color-cream);
}

.song-order {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    background: var(--color-navy);
    color: var(--color-white);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50%;
}

.song-info {
    min-width: 0;
}

.song-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gold);
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.song-name {
    font-size: 1.05rem;
    color: var(--color-navy);
    font-weight: 400;
}

.song-meta {
    text-align: right;
    flex-shrink: 0;
}

.song-source {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.song-key {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    background: var(--color-cream-dark);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-navy);
}

/* ===== Download Button ===== */
.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-navy);
    text-decoration: none;
    transition: var(--transition);
    margin-left: 0.5rem;
    vertical-align: middle;
    opacity: 0.6;
}

.download-btn:hover {
    color: var(--color-gold);
    opacity: 1;
}

.download-btn svg {
    width: 16px;
    height: 16px;
}

/* ===== Back Link ===== */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-navy);
    text-decoration: none;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.back-link:hover {
    color: var(--color-gold);
}

.back-link::before {
    content: '←';
    font-size: 1.1rem;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state-text {
    color: var(--color-text-muted);
    font-style: italic;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--color-navy-dark);
    color: var(--color-white);
    text-align: center;
    padding: 2rem 1.5rem;
    margin-top: auto;
}

.footer-content p:first-child {
    font-family: var(--font-display);
    font-size: 0.9rem;
    letter-spacing: 0.15em;
    color: var(--color-gold);
    margin-bottom: 0.5rem;
}

.footer-copyright {
    font-size: 0.85rem;
    opacity: 0.7;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .site-header {
        padding: 2rem 1rem;
    }
    
    .header-icon {
        font-size: 2rem;
    }
    
    .main-content {
        padding: 1.5rem 1rem;
    }
    
    .agenda-card {
        padding: 1.25rem;
    }
    
    .agenda-card-header {
        flex-direction: column-reverse;
        align-items: flex-start;
    }
    
    .agenda-cycle {
        position: absolute;
        top: 1.25rem;
        right: 1.25rem;
    }
    
    .agenda-card {
        position: relative;
    }
    
    .song-item {
        grid-template-columns: auto 1fr;
        grid-template-rows: auto auto;
        gap: 0.75rem;
        padding: 1rem 1.25rem;
    }
    
    .song-order {
        grid-row: span 2;
        align-self: start;
        margin-top: 0.25rem;
    }
    
    .song-meta {
        text-align: left;
        grid-column: 2;
    }
    
    .agenda-detail-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 15px;
    }
    
    .nav-content {
        padding: 0 1rem;
    }
    
    .nav-link {
        padding: 0.875rem 1rem;
        font-size: 0.8rem;
    }
}

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

.agenda-card {
    animation: fadeInUp 0.4s ease backwards;
}

.agenda-card:nth-child(1) { animation-delay: 0.05s; }
.agenda-card:nth-child(2) { animation-delay: 0.1s; }
.agenda-card:nth-child(3) { animation-delay: 0.15s; }
.agenda-card:nth-child(4) { animation-delay: 0.2s; }
.agenda-card:nth-child(5) { animation-delay: 0.25s; }
.agenda-card:nth-child(6) { animation-delay: 0.3s; }
.agenda-card:nth-child(7) { animation-delay: 0.35s; }
.agenda-card:nth-child(8) { animation-delay: 0.4s; }
.agenda-card:nth-child(9) { animation-delay: 0.45s; }
.agenda-card:nth-child(10) { animation-delay: 0.5s; }

.song-item {
    animation: fadeInUp 0.3s ease backwards;
}

.song-item:nth-child(1) { animation-delay: 0.1s; }
.song-item:nth-child(2) { animation-delay: 0.15s; }
.song-item:nth-child(3) { animation-delay: 0.2s; }
.song-item:nth-child(4) { animation-delay: 0.25s; }
.song-item:nth-child(5) { animation-delay: 0.3s; }
.song-item:nth-child(6) { animation-delay: 0.35s; }
.song-item:nth-child(7) { animation-delay: 0.4s; }
.song-item:nth-child(8) { animation-delay: 0.45s; }
.song-item:nth-child(9) { animation-delay: 0.5s; }
.song-item:nth-child(10) { animation-delay: 0.55s; }