:root {
    color-scheme: dark;
    --background: #16110d;
    --panel: #241a13;
    --panel-strong: #332318;
    --text: #f5ead9;
    --muted: #c5aa84;
    --accent: #d99642;
    --border: #5b3d27;
    --symbol-background: #f3dfbd;
    --symbol-border: #8b5b34;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
            radial-gradient(circle at top left, rgba(217, 150, 66, 0.20), transparent 32rem),
            linear-gradient(135deg, #120d0a, var(--background));
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell {
    width: min(72rem, calc(100vw - 2rem));
    margin: 0 auto;
    padding: 3rem 0;
}

.hero {
    padding: 3rem 0 2rem;
}

.hero h1 {
    margin: 0;
    font-size: clamp(3rem, 8vw, 6rem);
    line-height: 0.9;
    letter-spacing: -0.08em;
}

.hero p:last-child {
    max-width: 42rem;
    color: var(--muted);
    font-size: 1.15rem;
}

.eyebrow {
    margin: 0 0 0.75rem;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.panel {
    border: 1px solid var(--border);
    border-radius: 1.2rem;
    background: rgba(36, 26, 19, 0.88);
    box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.28);
    overflow: hidden;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--panel-strong);
}

.panel-header h2,
.rune-category h3,
.rune-card h4 {
    margin: 0;
}

.meta,
.details {
    color: var(--muted);
    font-size: 0.9rem;
}

.rune-groups {
    display: grid;
    gap: 2rem;
    padding: 1.5rem;
}

.rune-category {
    display: grid;
    gap: 1rem;
}

.rune-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
    gap: 1rem;
}

.rune-card {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid rgba(91, 61, 39, 0.8);
    border-radius: 0.9rem;
    background: rgba(22, 17, 13, 0.7);
}

.rune-symbol {
    display: grid;
    place-items: center;
    width: 3.4rem;
    height: 3.4rem;
    border: 1px solid var(--symbol-border);
    border-radius: 50%;
    background:
            radial-gradient(circle at 35% 25%, rgba(255, 248, 222, 0.95), transparent 42%),
            var(--symbol-background);
    color: #7a1410;
    box-shadow:
            inset 0 0.1rem 0.4rem rgba(255, 255, 255, 0.35),
            0 0.35rem 0.8rem rgba(0, 0, 0, 0.22);
    font-size: 1.3rem;
    font-weight: 800;
    overflow: hidden;
}

.rune-symbol img {
    display: block;
    width: 68%;
    height: 68%;
    object-fit: contain;
}

.rune-card p {
    margin: 0.45rem 0 0;
}

@media (max-width: 42rem) {
    .panel-header {
        display: block;
    }
}