/* OrbitDeck for iOS — GitHub Pages site
   Dependency-free static styles (no Jekyll build required). */

:root {
    --bg: #0b1020;
    --bg-elev: #121a30;
    --panel: #16203a;
    --border: #24314f;
    --text: #e7ecf5;
    --muted: #9aa7c2;
    --accent: #4cc6ff;
    --accent-2: #7ee787;
    --warning: #ffcc66;
    --max: 960px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

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

.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header / nav */
.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(11, 16, 32, 0.85);
    backdrop-filter: saturate(160%) blur(12px);
    border-bottom: 1px solid var(--border);
}
.nav {
    display: flex;
    align-items: center;
    gap: 20px;
    height: 60px;
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 20px;
}
.nav .brand {
    font-weight: 700;
    letter-spacing: 0.2px;
    color: var(--text);
    margin-right: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}
.nav .brand .dot {
    width: 12px; height: 12px; border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, var(--accent), #1c6fa8);
    box-shadow: 0 0 12px rgba(76, 198, 255, 0.7);
}
.nav a.navlink { color: var(--muted); font-size: 15px; }
.nav a.navlink:hover, .nav a.navlink[aria-current="page"] { color: var(--text); text-decoration: none; }

/* Hero */
.hero {
    padding: 72px 0 48px;
    text-align: center;
    background:
        radial-gradient(1200px 400px at 50% -120px, rgba(76,198,255,0.14), transparent 70%),
        linear-gradient(180deg, var(--bg-elev), var(--bg));
    border-bottom: 1px solid var(--border);
}
.hero h1 { font-size: clamp(30px, 6vw, 48px); margin: 0 0 12px; line-height: 1.1; }
.hero p.tagline { font-size: clamp(17px, 3vw, 21px); color: var(--muted); max-width: 640px; margin: 0 auto 28px; }
.hero .badges { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.btn {
    display: inline-block;
    padding: 11px 20px;
    border-radius: 10px;
    font-weight: 600;
    border: 1px solid var(--border);
    background: var(--panel);
    color: var(--text);
}
.btn.primary { background: linear-gradient(180deg, #2aa9e8, #1c6fa8); border-color: #1c6fa8; color: #fff; }
.btn:hover { text-decoration: none; border-color: var(--accent); }

/* Sections */
section { padding: 40px 0; }
h2 { font-size: 26px; margin: 0 0 6px; }
h3 { font-size: 19px; margin: 26px 0 8px; }
.section-intro { color: var(--muted); margin: 0 0 24px; }

/* Feature grid */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
}
.card h3 { margin-top: 0; color: var(--accent); font-size: 17px; }
.card ul { margin: 8px 0 0; padding-left: 18px; }
.card li { margin: 4px 0; color: var(--text); }
.card li span { color: var(--muted); }

/* Docs layout */
.doc { display: grid; grid-template-columns: 220px 1fr; gap: 32px; align-items: start; }
.toc {
    position: sticky; top: 76px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--panel);
    padding: 14px 16px;
    font-size: 14px;
}
.toc h4 { margin: 0 0 8px; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.toc a { display: block; color: var(--muted); padding: 3px 0; }
.toc a:hover { color: var(--text); text-decoration: none; }
.doc-body h2 { scroll-margin-top: 76px; border-top: 1px solid var(--border); padding-top: 26px; margin-top: 8px; }
.doc-body h2:first-child { border-top: 0; padding-top: 0; }
.doc-body code {
    background: var(--bg-elev); border: 1px solid var(--border);
    padding: 1px 6px; border-radius: 6px; font-size: 0.9em;
}
.doc-body pre {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    overflow-x: auto;
    font-size: 13.5px;
    line-height: 1.55;
    margin: 14px 0;
}
.doc-body pre code {
    background: none; border: 0; padding: 0; font-size: inherit;
}
.doc-body pre, .doc-body pre code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    color: var(--text);
}
.swatch {
    display: inline-block; width: 14px; height: 14px;
    border-radius: 3px; border: 1px solid var(--border);
    vertical-align: middle; margin-right: 6px;
}
.doc-body table { border-collapse: collapse; width: 100%; margin: 14px 0; font-size: 14px; }
.doc-body th, .doc-body td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; vertical-align: top; }
.doc-body th { background: var(--bg-elev); color: var(--muted); font-weight: 600; }

.note {
    border-left: 3px solid var(--accent);
    background: var(--bg-elev);
    padding: 12px 16px;
    border-radius: 8px;
    margin: 16px 0;
    color: var(--muted);
}

/* Legal / prose */
.prose { max-width: 760px; }
.prose h2 { margin-top: 34px; }
.prose ul { padding-left: 20px; }
.prose li { margin: 6px 0; }
.eyebrow { color: var(--accent); text-transform: uppercase; letter-spacing: 0.1em; font-size: 13px; font-weight: 700; }

/* Footer */
.site-footer {
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 14px;
    padding: 28px 0 48px;
}
.site-footer .container { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; align-items: center; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--text); }

@media (max-width: 720px) {
    .doc { grid-template-columns: 1fr; }
    .toc { position: static; }
    .nav { gap: 14px; }
}