:root {
    --primary: #58d7ff;
    --bg: #0a1116;
    --bg2: #111922;
    --surface: rgba(18, 26, 33, 0.92);
    --surface2: rgba(24, 34, 44, 0.9);
    --border: rgba(151, 190, 181, 0.10);
    --text: #e9f0ec;
    --muted: #94a59f;
    --dim: #5a716b;
    --green: #7bf0be;
    --orange: #ffbc72;
    --purple: #b59cff;
    --teal: #58d7ff;
    --red: #ff8392;
    --nav-h: 64px;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    --radius: 20px;
    --radius-sm: 14px;
}

body {
    background:
        radial-gradient(ellipse 60% 50% at 30% 20%, rgba(88, 215, 255, 0.05), transparent),
        radial-gradient(ellipse 50% 40% at 70% 80%, rgba(123, 240, 190, 0.04), transparent),
        linear-gradient(180deg, #081016 0%, #0b141c 50%, #081015 100%);
    color: var(--text);
    font-family: 'Inter', system-ui, sans-serif;
    padding: calc(var(--nav-h) + 24px) 24px 48px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
}

/* Header */
header {
    text-align: center;
    padding: 40px 0 48px;
}

header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

header h1 span {
    color: var(--teal);
}

header p {
    color: var(--muted);
    margin-top: 10px;
    font-size: 1.05rem;
}

.badges {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 18px;
    flex-wrap: wrap;
}

.badge {
    background: var(--surface2);
    border: 1px solid #333;
    border-radius: 20px;
    padding: 5px 14px;
    font-size: 0.82rem;
    color: var(--teal);
}

/* Section */
section {
    margin-bottom: 48px;
}

h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

h2::before {
    content: '';
    display: block;
    width: 4px;
    height: 1.25em;
    background: var(--primary);
    border-radius: 2px;
}

/* Pipeline diagram */
.pipeline {
    display: flex;
    align-items: center;
    gap: 0;
    flex-wrap: wrap;
    justify-content: center;
    padding: 24px;
    background: var(--surface);
    border-radius: 16px;
}

.pipe-step {
    background: var(--surface2);
    border: 1px solid #333;
    border-radius: 12px;
    padding: 14px 18px;
    text-align: center;
    min-width: 120px;
}

.pipe-step .icon {
    font-size: 1.6rem;
    margin-bottom: 6px;
}

.pipe-step .label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--teal);
}

.pipe-step .sub {
    font-size: 0.7rem;
    color: var(--muted);
    margin-top: 3px;
}

.pipe-arrow {
    color: var(--muted);
    font-size: 1.4rem;
    padding: 0 6px;
}

/* Results grid */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.metric-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow);
}

.metric-card .metric-val {
    font-size: 2rem;
    font-weight: 700;
    color: var(--green);
}

.metric-card .metric-label {
    font-size: 0.82rem;
    color: var(--muted);
    margin-top: 6px;
}

.metric-card .metric-detail {
    font-size: 0.78rem;
    color: #555;
    margin-top: 4px;
}

/* Images */
.img-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
}

.img-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow);
}

.img-card img {
    width: 100%;
    display: block;
    background: #fff;
}

.img-card .cap {
    padding: 12px 16px;
    font-size: 0.82rem;
    color: var(--muted);
}

/* Code block */
pre {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    overflow-x: auto;
    font-size: 0.83rem;
    line-height: 1.7;
    color: #a8d8a8;
}

code {
    font-family: 'JetBrains Mono', 'Cascadia Code', Consolas, monospace;
}

/* Module table */
.mod-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.mod-table th {
    background: var(--surface2);
    color: var(--muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 0.75rem;
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.mod-table td {
    padding: 10px 14px;
    border-top: 1px solid var(--border);
    vertical-align: top;
}

.mod-table tr:hover td {
    background: var(--surface);
}

.tag {
    display: inline-block;
    background: #1a3a5c;
    color: var(--teal);
    border-radius: 6px;
    padding: 2px 8px;
    font-size: 0.73rem;
    margin: 1px;
}

.status {
    color: var(--green);
    font-weight: 600;
}

/* Math */
.math-block {
    background: var(--surface);
    border-left: 3px solid var(--purple);
    border-radius: 0 10px 10px 0;
    padding: 16px 20px;
    font-family: 'Cambria Math', Georgia, serif;
    font-size: 1.05rem;
    color: var(--purple);
    margin: 12px 0;
    line-height: 2;
}

/* Algo cards */
.algo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.algo-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow);
}

.algo-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--orange);
}

.algo-card ul {
    padding-left: 18px;
    font-size: 0.84rem;
    color: var(--muted);
    line-height: 1.8;
}

footer {
    text-align: center;
    padding: 40px 0 20px;
    color: var(--dim);
    font-size: 0.82rem;
    border-top: 1px solid var(--border);
    margin-top: 20px;
}