:root {
    --bg-main: #121214;
    --bg-card: #1a1a1e;
    --bg-surface: #222227;
    --text-main: #e2e2e9;
    --text-muted: #9a9aa5;
    --accent-color: #58a6ff;
    --lunar-text: #fcd779;
    --border-color: #2d2d34;
    --today-bg: #1f293a;
    --gold-sponsor: #fcd779;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
}

.brand-group {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.brand-group h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

#calendarPackSelector {
    background-color: var(--bg-main);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
}

.navigation-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#currentMonthLabel {
    font-size: 1.2rem;
    font-weight: 500;
    min-width: 320px;
    text-align: center;
}

.nav-btn {
    background-color: var(--bg-surface);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.2s;
}

.nav-btn:hover {
    background-color: var(--border-color);
}

.nav-btn.today-highlight {
    border-color: var(--accent-color);
}

.support-btn-gold {
    background-color: var(--gold-sponsor);
    color: #121212 !important;
    padding: 12px 20px;
    border-radius: 6px;
    text-decoration: none !important;
    font-weight: 700;
    font-size: 0.95rem;
    box-shadow: 0 4px 14px rgba(0,0,0,0.4);
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.2s;
}
.support-btn-gold:hover { opacity: 0.95; background-color: #e5c165; }

.sponsor-highlight-badge {
    background-color: rgba(252, 215, 121, 0.1) !important;
    color: var(--gold-sponsor) !important;
    font-weight: bold;
}

.wiki-footer { 
    margin-bottom: 25px;
}
.footer-links { 
    list-style: none; 
    display: flex; 
    flex-wrap: wrap; 
    justify-content: center; 
    gap: 20px; 
}
.footer-links li {
    display: inline-block;
}
.footer-links a { 
    color: var(--text-muted); 
    text-decoration: none; 
    font-size: 0.85rem;
    transition: color 0.15s;
}
.footer-links a:hover { 
    color: var(--accent-color); 
}

.calendar-viewport {
    flex: 1;
    padding: 1.5rem;
    overflow: hidden;
    display: flex;
}

.calendar-frame {
    flex: 1;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.weekday-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.weekday-cell {
    padding: 0.75rem 0;
    border-right: 1px solid var(--border-color);
}

.weekday-cell:last-child {
    border-right: none;
}

.days-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    grid-auto-rows: 1fr;
    flex: 1;
    background-color: var(--bg-main);
}

.day-cell {
    background-color: var(--bg-card);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 0.6rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.day-cell:nth-child(7n) {
    border-right: none;
}

.day-cell.out-of-bounds {
    background-color: #151518;
    opacity: 0.35;
}

.day-cell.current-today {
    background-color: var(--today-bg);
    box-shadow: inset 0 0 0 1px var(--accent-color);
}

.cell-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.gregorian-day-number {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-main);
}

.astronomy-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.moon-glyph {
    font-size: 1.1rem;
}

.cell-bottom {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 0.75rem;
}

.lunar-month-tag {
    color: var(--lunar-text);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.lunar-day-tag {
    color: var(--text-muted);
}