:root {
    --bg: #0b1020;
    --panel: #141b2d;
    --panel2: #1b2640;
    --border: #2c3a5d;
    --text: #e5ecff;
    --text2: #9cb0d8;
    --accent1: #4f9cf9;
    --accent2: #22d3a5;
    --accent3: #c084fc;
    --accent4: #f59e0b;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: 'DM Sans', sans-serif;
    color: var(--text);
    background:
        radial-gradient(1200px 400px at 10% -10%, rgba(79, 156, 249, 0.25), transparent 60%),
        radial-gradient(800px 360px at 95% 0%, rgba(192, 132, 252, 0.20), transparent 60%),
        linear-gradient(180deg, #090d1a 0%, var(--bg) 100%);
    display: grid;
    place-items: center;
    padding: 1.5rem;
}

.shell {
    width: min(860px, 100%);
    background: rgba(20, 27, 45, 0.92);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.top-nav {
    display: flex;
    gap: 0.45rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.day-link {
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid var(--border);
    background: var(--panel2);
    color: var(--text2);
    padding: 5px 12px;
    border-radius: 6px;
    transition: all 0.15s ease;
}

.day-link:hover {
    color: var(--text);
    border-color: var(--accent1);
}

.day-link.current {
    color: var(--accent2);
    border-color: var(--accent2);
    background: rgba(34, 211, 165, 0.1);
}

h1 {
    margin: 0;
    font-size: clamp(1.4rem, 2.8vw, 2rem);
}

p {
    margin: 0.5rem 0 0;
    color: var(--text2);
    line-height: 1.6;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.85rem;
    margin-top: 1.25rem;
}

.card {
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--border);
    background: linear-gradient(160deg, var(--panel2), var(--panel));
    border-radius: 12px;
    padding: 1rem;
    transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
    transform: translateY(-2px);
    border-color: var(--accent1);
    box-shadow: 0 10px 20px rgba(79, 156, 249, 0.18);
}

.badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #0b1020;
    display: inline-block;
    border-radius: 999px;
    padding: 3px 10px;
    margin-bottom: 0.7rem;
    font-weight: 600;
}

.b1 {
    background: var(--accent1);
}

.b2 {
    background: var(--accent2);
}

.b3 {
    background: var(--accent3);
}

.b4 {
    background: var(--accent4);
}

.title {
    font-size: 1rem;
    font-weight: 600;
}

.meta {
    margin-top: 0.4rem;
    font-size: 0.9rem;
    color: var(--text2);
}