* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #0a0a0f;
    --bg-card: #12121a;
    --bg-card-2: #1a1a2a;
    --border: #2a2a3a;
    --text: #e0e0e0;
    --muted: #888;
    --dim: #666;
    --cyan: #00d4ff;
    --purple: #7b2ff7;
    --green: #00d464;
    --yellow: #ffd700;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--cyan);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Top bar ===== */
.topbar {
    background: linear-gradient(90deg, rgba(0, 212, 255, 0.08), rgba(123, 47, 247, 0.08));
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
    padding: 8px 0;
    color: var(--muted);
}

.topbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.topbar strong {
    color: var(--text);
}

/* ===== Header ===== */
header.site {
    padding: 22px 0 14px;
    border-bottom: 1px solid var(--border);
}

header.site .container {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 12px;
}

.brand-link {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, #00d4ff, #7b2ff7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-link:hover {
    text-decoration: none;
}

.brand .by {
    font-size: 0.75rem;
    color: var(--muted);
    margin-top: 2px;
}

nav.primary {
    display: flex;
    gap: 16px;
    font-size: 0.85rem;
    flex-wrap: wrap;
}

nav.primary a {
    color: var(--text);
    opacity: 0.75;
}

nav.primary a:hover {
    opacity: 1;
    text-decoration: none;
}

nav.primary a.here {
    opacity: 1;
    color: var(--cyan);
}

/* ===== Hero ===== */
section.hero {
    padding: 40px 0 28px;
}

.eyebrow {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--muted);
    margin-bottom: 10px;
}

.hero h2 {
    font-size: 1.9rem;
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.4px;
    margin-bottom: 14px;
}

.hero .accent {
    background: linear-gradient(135deg, #00d4ff, #7b2ff7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero .lede {
    font-size: 1.05rem;
    color: #c0c0c0;
}

/* ===== Sections ===== */
section.block {
    padding: 30px 0;
    border-top: 1px solid var(--border);
}

h3.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 14px;
    letter-spacing: -0.2px;
}

.block p {
    color: #b0b0b0;
    margin-bottom: 12px;
    font-size: 0.95rem;
}

.block p:last-child {
    margin-bottom: 0;
}

.block p b,
.block p strong {
    color: #d5d5d5;
}

/* ===== Cards ===== */
.card {
    background: linear-gradient(135deg, var(--bg-card), var(--bg-card-2));
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px 20px;
    margin-bottom: 14px;
}

.card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin: 9px 0 6px;
}

.card p {
    font-size: 0.93rem;
    color: #b0b0b0;
    margin: 0;
}

.card p b,
.card p i {
    color: #d5d5d5;
}

/* ===== Tier chips ===== */
.tier {
    display: inline-block;
    font-size: 0.66rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 3px 9px;
    border-radius: 999px;
    font-weight: 600;
}

.t-cert {
    color: var(--green);
    background: rgba(0, 212, 100, 0.1);
    border: 1px solid rgba(0, 212, 100, 0.35);
}

.t-meas {
    color: #b388ff;
    background: rgba(123, 47, 247, 0.12);
    border: 1px solid rgba(123, 47, 247, 0.45);
}

.t-mod {
    color: var(--cyan);
    background: rgba(0, 212, 255, 0.08);
    border: 1px dashed rgba(0, 212, 255, 0.5);
}

.t-gap {
    color: var(--yellow);
    background: rgba(255, 215, 0, 0.06);
    border: 1px dashed rgba(255, 215, 0, 0.5);
}

/* ===== Tables ===== */
.table-scroll {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

th,
td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

th {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--muted);
    font-weight: 500;
}

td {
    color: #a8a8a8;
}

td b {
    color: var(--text);
}

.small {
    font-size: 0.85rem;
    color: var(--muted);
}

/* ===== Footer ===== */
footer {
    border-top: 1px solid var(--border);
    margin-top: 28px;
    padding: 26px 0 36px;
    color: var(--muted);
    font-size: 0.85rem;
}

footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

footer .links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}