/* ─────────────────────────────────────────────
   CarbonCode — shared styling
   ───────────────────────────────────────────── */

:root {
    --bg: #08090b;
    --bg-elev: #0f1115;
    --surface: #14171c;
    --surface-hover: #1a1e25;
    --border: #1f242c;
    --border-strong: #2a303a;
    --text: #ecedef;
    --text-soft: #c4c7cc;
    --text-muted: #8b9199;
    --accent: #e10600;
    --accent-glow: rgba(225, 6, 0, 0.35);
    --link: #7cb3ff;
    --link-hover: #a4c9ff;
    --success: #34d399;
    --max-width: 760px;
    --radius-sm: 6px;
    --radius: 12px;
    --radius-lg: 18px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(225, 6, 0, 0.08);
}

* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.65;
    color: var(--text);
    background: var(--bg);
    background-image:
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(225, 6, 0, 0.08), transparent 60%),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(124, 179, 255, 0.05), transparent 60%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

/* ── Top nav ───────────────────────────────── */

nav.top {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 24px 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    flex-wrap: wrap;
    gap: 12px;
}

nav.top .brand {
    font-weight: 800;
    letter-spacing: 0.3px;
    color: var(--text);
    text-decoration: none;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

nav.top .brand span {
    color: var(--accent);
}

nav.top .brand:hover {
    color: var(--text);
    text-decoration: none;
}

nav.top .nav-links {
    display: flex;
    gap: 20px;
}

nav.top .nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.15s ease;
}

nav.top .nav-links a:hover {
    color: var(--text);
    text-decoration: none;
}

/* ── Layout ────────────────────────────────── */

.wrap {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 40px 24px 96px;
}

/* ── Typography ────────────────────────────── */

h1 {
    font-size: 40px;
    font-weight: 800;
    letter-spacing: -0.8px;
    line-height: 1.15;
    margin: 8px 0 6px;
    background: linear-gradient(180deg, #ffffff 0%, #b8bcc2 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 48px 0 14px;
    letter-spacing: -0.4px;
    color: var(--text);
}

h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 28px 0 10px;
    color: var(--text);
    letter-spacing: -0.1px;
}

p, li {
    color: var(--text-soft);
}

strong {
    color: var(--text);
    font-weight: 600;
}

.muted {
    color: var(--text-muted);
    font-size: 14px;
    margin: 0 0 36px;
    letter-spacing: 0.1px;
}

.kicker {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent);
    padding: 4px 10px;
    background: rgba(225, 6, 0, 0.08);
    border: 1px solid rgba(225, 6, 0, 0.25);
    border-radius: 100px;
    margin-bottom: 16px;
}

a {
    color: var(--link);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--link-hover);
    text-decoration: underline;
    text-underline-offset: 3px;
}

hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 48px 0 24px;
}

ul {
    padding-left: 22px;
}

li {
    margin-bottom: 8px;
}

code {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 2px 7px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
    color: var(--text);
}

/* ── Cards ─────────────────────────────────── */

.card {
    background: linear-gradient(180deg, var(--surface) 0%, var(--bg-elev) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 26px;
    margin: 20px 0;
    transition: border-color 0.2s ease, transform 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.card h3 {
    margin-top: 0;
}

.card:hover {
    border-color: var(--border-strong);
}

a.card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

a.card-link:hover {
    text-decoration: none;
    color: inherit;
}

a.card-link:hover .card {
    border-color: rgba(225, 6, 0, 0.4);
    transform: translateY(-2px);
    box-shadow: var(--shadow), var(--shadow-glow);
}

a.card-link .card .arrow {
    color: var(--text-muted);
    transition: transform 0.2s ease, color 0.2s ease;
    display: inline-block;
}

a.card-link:hover .card .arrow {
    color: var(--accent);
    transform: translateX(4px);
}

/* ── Hero (landing pages) ──────────────────── */

.hero {
    padding: 72px 0 32px;
    text-align: left;
}

.hero h1 {
    font-size: 56px;
    letter-spacing: -1.2px;
    margin: 16px 0 16px;
}

.hero .lede {
    font-size: 19px;
    color: var(--text-soft);
    margin: 0 0 32px;
    max-width: 560px;
    line-height: 1.55;
}

/* ── Buttons / pill links ──────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 100px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.15s ease;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-primary:hover {
    background: #ff1a10;
    color: #fff;
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-ghost {
    background: transparent;
    color: var(--text-soft);
    border: 1px solid var(--border-strong);
}

.btn-ghost:hover {
    background: var(--surface);
    color: var(--text);
    text-decoration: none;
    border-color: var(--border-strong);
}

.btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 24px 0 8px;
}

/* ── Section header for legal pages ────────── */

.doc-header {
    padding: 16px 0 8px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}

/* ── Footer ────────────────────────────────── */

footer {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 32px 24px 48px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 13px;
    text-align: center;
}

footer .brand-sm {
    font-weight: 700;
    color: var(--text);
    letter-spacing: 0.3px;
}

footer .brand-sm span {
    color: var(--accent);
}

footer a {
    color: var(--text-muted);
    margin: 0 10px;
    transition: color 0.15s ease;
}

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

/* ── Responsive ────────────────────────────── */

@media (max-width: 640px) {
    body { font-size: 15px; }
    h1 { font-size: 32px; }
    .hero h1 { font-size: 40px; }
    .hero .lede { font-size: 17px; }
    h2 { font-size: 20px; }
    h3 { font-size: 16px; }
    .wrap { padding: 24px 20px 72px; }
    .hero { padding: 48px 0 16px; }
    nav.top .nav-links { gap: 14px; }
}