:root {
    --primary: #8a1538;
    --secondary: #f3d03e;
    --text-main: #2d3436;
    --text-muted: #636e72;
    --bg-body: #f8f9fa;
    --bg-card: #ffffff;
    --border-color: #b2bec3;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    margin: 0;
}

.page-title {
    text-align: center;
    padding: 2rem 1rem;
}

.page-title h1 {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.accent-bar {
    width: 60px;
    height: 4px;
    background: var(--secondary);
    margin: 0 auto;
    border-radius: 2px;
}

.schedule-wrapper {
    width: 95%;
    max-width: 1400px;
    margin: 50px auto 3rem;
    background: var(--bg-card);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.si-table {
    width: 100%;
    border-collapse: collapse;
}

th {
    background-color: var(--primary);
    color: white;
    padding: 1.2rem 1rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: center;
}

td {
    padding: 1rem;
    text-align: center;
    vertical-align: middle;
    border-bottom: 1px solid #ced4da;
}

.group-start {
    border-top: 3px solid #636e72 !important;
}

.cell-shared {
    font-weight: 700;
    background-color: rgba(0,0,0,0.01);
}

.leader-col a {
    color: var(--primary);
    text-decoration: none;
    font-weight: bold;
}

.leader-col a:hover {
    color: var(--secondary);
    text-decoration: underline;
}

.cell-session {
    color: var(--text-muted);
}

tbody tr:hover {
    background-color: #fffde7;
}

.empty-state {
    padding: 3rem;
    font-style: italic;
    color: var(--text-muted);
}