/* ═══ UCF Branding ═══ */
:root {
    --md-primary-fg-color: #000;
    --md-primary-bg-color: #FFC904;
    --md-accent-fg-color: #FFC904;
    --ucf-gold: #FFC904;
    --ucf-black: #000;
}
[data-md-color-scheme="slate"] {
    --md-primary-fg-color: #000;
    --md-primary-bg-color: #FFC904;
    --md-default-bg-color: #0d1117;
    --card-bg: #161b22;
    --card-border: #30363d;
    --card-hover: #FFC90420;
    --text-muted: #8b949e;
    --text-secondary: #c9d1d9;
}
[data-md-color-scheme="default"] {
    --card-bg: #fff;
    --card-border: #e5e5e0;
    --card-hover: #FFC90415;
    --text-muted: #666;
    --text-secondary: #333;
}
.md-header { background: var(--ucf-black) !important; }
.md-header__title { color: var(--ucf-gold) !important; font-weight: 700; }
.md-tabs { background: #1a1a1a !important; }

/* ═══ Typography ═══ */
.md-content h1 {
    border-bottom: 3px solid var(--ucf-gold);
    padding-bottom: 0.3em;
}
.subtitle {
    color: var(--text-muted) !important;
    font-size: 0.9em;
    margin-top: -0.5em;
    margin-bottom: 1em;
}
.highlight pre { border-left: 3px solid var(--ucf-gold); }

/* ═══ Card Grid System ═══ */
.card-grid {
    display: grid;
    gap: 12px;
    margin: 1em 0 1.5em;
}
.card-grid--2 { grid-template-columns: repeat(2, 1fr); }
.card-grid--3 { grid-template-columns: repeat(3, 1fr); }
.card-grid--4 { grid-template-columns: repeat(4, 1fr); }
.card-grid--5 { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 768px) {
    .card-grid--3, .card-grid--4, .card-grid--5 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .card-grid--2, .card-grid--3, .card-grid--4, .card-grid--5 { grid-template-columns: 1fr; }
}

/* ═══ Stat Cards (Homepage) ═══ */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin: 1.5em 0 2em;
}
@media (max-width: 768px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 20px 18px;
    text-align: left;
}
.stat-value {
    font-size: 2em;
    font-weight: 800;
    color: var(--ucf-gold);
    font-family: 'JetBrains Mono', 'IBM Plex Mono', monospace;
    line-height: 1.1;
}
.stat-label {
    font-size: 0.9em;
    font-weight: 600;
    color: var(--text-secondary);
    margin-top: 4px;
}
.stat-sub {
    font-size: 0.75em;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ═══ Thread Cards ═══ */
.thread-card {
    border: 1px solid;
    border-radius: 10px;
    padding: 16px;
    background: var(--card-bg);
}
.thread-icon { font-size: 1.5em; margin-bottom: 4px; }
.thread-name { font-size: 0.9em; font-weight: 700; }
.thread-days {
    font-size: 0.7em;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ═══ Week Section + Day Cards ═══ */
.week-section { margin-bottom: 1.8em; }
.week-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}
.week-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    color: #fff;
    font-weight: 800;
    font-size: 1.1em;
    font-family: 'JetBrains Mono', monospace;
    flex-shrink: 0;
}
.week-title { font-weight: 600; font-size: 1em; }

a.day-card {
    display: block;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 16px;
    text-decoration: none !important;
    color: inherit !important;
    transition: border-color 0.15s, box-shadow 0.15s;
}
a.day-card:hover {
    border-color: var(--ucf-gold);
    box-shadow: 0 2px 12px rgba(255, 201, 4, 0.12);
}
.day-num {
    font-size: 0.72em;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    margin-bottom: 6px;
    letter-spacing: 0.03em;
}
.day-title {
    font-size: 0.88em;
    font-weight: 600;
    color: var(--text-secondary);
    line-height: 1.35;
    min-height: 2.7em;
}

/* ═══ Free / Excursion Day Cards ═══ */
.day-card--free {
    display: block;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 16px;
    opacity: 0.8;
    font-style: italic;
}

/* ═══ Feature Cards ═══ */
.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 18px 20px;
}
.feature-card strong {
    display: block;
    font-size: 0.95em;
    margin-bottom: 4px;
}
.feature-card p {
    font-size: 0.85em;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.5;
}

/* ═══ Day Page Nav Cards ═══ */
.nav-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
}
.nav-card .card-icon {
    font-size: 1.8em;
    display: block;
    margin-bottom: 6px;
}
.nav-card strong { font-size: 1em; }
.nav-card p { font-size: 0.82em; color: var(--text-muted); margin: 4px 0 10px; }
.nav-card a { font-size: 0.85em; }

/* ═══ YouTube Embed ═══ */
.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    margin: 1em 0;
    border-radius: 8px;
    background: #111;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.video-container iframe {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    border: none;
    border-radius: 8px;
}

/* ═══ Cross-Cutting Thread Badges (Day Cards on Homepage) ═══ */
.day-threads {
    margin-top: 8px;
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}
.thread-badge {
    font-size: 0.85em;
    line-height: 1;
    cursor: default;
}

/* ═══ Cross-Cutting Thread Pills (Day Landing Pages) ═══ */
.day-thread-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: -0.3em 0 1.2em;
}
.thread-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.72em;
    font-weight: 600;
    padding: 3px 10px;
    border: 1.5px solid;
    border-radius: 20px;
    background: transparent;
    white-space: nowrap;
}

/* ═══ Thread Filter Interaction (Homepage) ═══ */
.thread-filter {
    transition: transform 0.15s, box-shadow 0.15s;
    user-select: none;
}
.thread-filter:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.thread-active {
    box-shadow: 0 0 0 2.5px var(--ucf-gold), 0 4px 12px rgba(255,201,4,0.25);
    transform: translateY(-2px);
}
a.day-card.day-highlight {
    border-color: var(--ucf-gold) !important;
    box-shadow: 0 0 0 2px var(--ucf-gold), 0 4px 16px rgba(255,201,4,0.18);
    transform: translateY(-2px);
    transition: all 0.2s ease;
}
a.day-card.day-dim {
    opacity: 0.3;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

/* ═══ Clickable Cards (any card containing a link) ═══ */
.nav-card--clickable,
.feature-card--clickable {
    cursor: pointer;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.nav-card--clickable:hover,
.feature-card--clickable:hover {
    border-color: var(--ucf-gold);
    box-shadow: 0 2px 12px rgba(255, 201, 4, 0.12);
}