:root {
    --bg: #0e0e10;
    --bg-card: #16161a;
    --bg-card-hover: #1c1c22;
    --fg: #f4f4f5;
    --muted: #a1a1aa;
    --accent: #e7c46e;
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(231, 196, 110, 0.35);
    --max-width: 960px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100%;
    background: var(--bg);
    color: var(--fg);
    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    min-height: 100vh;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 4rem 1.5rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.hero {
    text-align: left;
}

.hero h1 {
    font-size: clamp(2.25rem, 6vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 0.5rem 0;
    color: var(--accent);
}

.tagline {
    font-size: 1.125rem;
    color: var(--muted);
    margin: 0;
    max-width: 48ch;
}

.holdings {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-strong);
    transform: translateY(-2px);
}

.card-header {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    color: var(--fg);
    letter-spacing: -0.01em;
}

.card-id {
    font-size: 0.8125rem;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
}

.card-body {
    margin: 0;
    color: var(--muted);
    flex-grow: 1;
    font-size: 0.95rem;
}

.card-link {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    align-self: flex-start;
}

.card-link:hover {
    text-decoration: underline;
}

.footer {
    margin-top: auto;
    color: var(--muted);
    border-top: 1px solid var(--border);
    padding-top: 1rem;
}