/* AARCV public site: marketing, help center and developer docs.
   Tokens match aarcv/web/static/app.css so the site and the product read as
   one system. No web fonts, no CDNs: the site also builds and serves offline. */

/* ---- tokens (kept in step with app.css) ------------------------------ */
:root {
  --font: "Inter", "InterVariable", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --bg: #f5f6fa; --panel: #ffffff; --panel-2: #f8f9fc; --ink: #0f172a; --ink-2: #334155; --muted: #64748b;
  --line: #e5e7ef; --line-2: #d6dae5; --hover: rgba(15, 23, 42, .04);
  --accent: #4f46e5; --accent-ink: #ffffff; --accent-soft: rgba(79, 70, 229, .10); --accent-2: #4338ca;
  --good: #15803d; --warn: #b45309; --bad: #dc2626; --info: #2563eb;
  --good-soft: rgba(22, 163, 74, .12); --warn-soft: rgba(217, 119, 6, .14); --bad-soft: rgba(220, 38, 38, .11); --info-soft: rgba(37, 99, 235, .11); --mute-soft: rgba(100, 116, 139, .13);
  --side-bg: #0b1220;

  /* the always-dark "night sky" surfaces used by heroes and the live view */
  --night: #070b14; --night-2: #0b1220; --night-3: #111a2e; --night-ink: #e6e9f0; --night-muted: #8a94a6; --night-line: rgba(148, 163, 184, .16);
  --hud: #5eead4; --hud-2: #a5b4fc; --glow: rgba(129, 140, 248, .35);

  --r-sm: 6px; --r: 10px; --r-lg: 16px; --r-xl: 22px;
  --sh-1: 0 1px 2px rgba(15, 23, 42, .05);
  --sh-2: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 12px rgba(15, 23, 42, .04);
  --sh-3: 0 24px 60px rgba(15, 23, 42, .16);
  --ring: 0 0 0 3px rgba(79, 70, 229, .25);
  --wrap: 1180px; --nav-h: 64px; --banner-h: 22px;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #0b0f17; --panel: #121826; --panel-2: #0f1520; --ink: #e6e9f0; --ink-2: #c3cad6; --muted: #8a94a6;
  --line: #222a3a; --line-2: #2c3547; --hover: rgba(255, 255, 255, .04);
  --accent: #818cf8; --accent-ink: #0b0f17; --accent-soft: rgba(129, 140, 248, .14); --accent-2: #a5b4fc;
  --good: #4ade80; --warn: #fbbf24; --bad: #f87171; --info: #60a5fa;
  --good-soft: rgba(74, 222, 128, .13); --warn-soft: rgba(251, 191, 36, .13); --bad-soft: rgba(248, 113, 113, .14); --info-soft: rgba(96, 165, 250, .14); --mute-soft: rgba(138, 148, 166, .16);
  --sh-1: none; --sh-2: 0 0 0 1px rgba(255, 255, 255, .03); --sh-3: 0 24px 60px rgba(0, 0, 0, .55);
  --ring: 0 0 0 3px rgba(129, 140, 248, .35);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b0f17; --panel: #121826; --panel-2: #0f1520; --ink: #e6e9f0; --ink-2: #c3cad6; --muted: #8a94a6;
    --line: #222a3a; --line-2: #2c3547; --hover: rgba(255, 255, 255, .04);
    --accent: #818cf8; --accent-ink: #0b0f17; --accent-soft: rgba(129, 140, 248, .14); --accent-2: #a5b4fc;
    --good: #4ade80; --warn: #fbbf24; --bad: #f87171; --info: #60a5fa;
    --good-soft: rgba(74, 222, 128, .13); --warn-soft: rgba(251, 191, 36, .13); --bad-soft: rgba(248, 113, 113, .14); --info-soft: rgba(96, 165, 250, .14); --mute-soft: rgba(138, 148, 166, .16);
    --sh-1: none; --sh-2: 0 0 0 1px rgba(255, 255, 255, .03); --sh-3: 0 24px 60px rgba(0, 0, 0, .55);
    --ring: 0 0 0 3px rgba(129, 140, 248, .35);
    color-scheme: dark;
  }
}

/* ---- base ------------------------------------------------------------ */
[hidden] { display: none !important; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + var(--banner-h) + 16px); }
body { margin: 0; font: 16px/1.6 var(--font); background: var(--bg); color: var(--ink); -webkit-font-smoothing: antialiased; font-feature-settings: "cv11", "ss01"; overflow-x: hidden; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { letter-spacing: -.02em; line-height: 1.15; margin: 0 0 .5em; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5.2vw, 4rem); letter-spacing: -.035em; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); letter-spacing: -.03em; }
h3 { font-size: 1.15rem; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
code, kbd, pre, .mono { font-family: var(--mono); }
code { font-size: .86em; background: var(--mute-soft); padding: .1em .4em; border-radius: 5px; }
::selection { background: var(--accent-soft); }
:focus-visible { outline: none; box-shadow: var(--ring); border-radius: var(--r-sm); }
.ico { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.muted { color: var(--muted); }
.skip { position: absolute; left: -999px; top: 0; background: var(--panel); padding: 8px 12px; z-index: 100; }
.skip:focus { left: 12px; top: 30px; }

/* ---- classification-style banner (the site itself is public) --------- */
.banner { position: sticky; top: 0; z-index: 60; height: var(--banner-h); line-height: var(--banner-h); background: #007a33; color: #fff;
  text-align: center; font-size: 11px; font-weight: 700; letter-spacing: .1em; padding: 0 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---- top navigation -------------------------------------------------- */
.nav { position: sticky; top: var(--banner-h); z-index: 50; height: var(--nav-h); background: color-mix(in srgb, var(--panel) 82%, transparent);
  backdrop-filter: saturate(1.6) blur(14px); -webkit-backdrop-filter: saturate(1.6) blur(14px); border-bottom: 1px solid var(--line); }
.nav.on-dark { background: rgba(7, 11, 20, .72); border-bottom-color: var(--night-line); color: var(--night-ink); }
.nav .wrap { display: flex; align-items: center; gap: 28px; height: 100%; }
.brand { display: flex; align-items: center; gap: 10px; color: inherit; font-weight: 700; letter-spacing: -.01em; }
.brand:hover { text-decoration: none; }
.brand .logo { width: 30px; height: 30px; border-radius: 8px; background: linear-gradient(135deg, #6366f1, #4338ca); display: grid; place-items: center; box-shadow: 0 4px 14px rgba(79, 70, 229, .45); }
.brand .logo svg { width: 20px; height: 20px; fill: none; stroke: #fff; stroke-width: 2.6; stroke-linecap: round; stroke-linejoin: round; }
.brand small { display: block; font-size: 11px; font-weight: 500; color: var(--muted); letter-spacing: 0; margin-top: -2px; }
.on-dark .brand small { color: var(--night-muted); }
.nav-links { display: flex; gap: 4px; margin-left: 8px; }
.nav-links a { color: inherit; opacity: .78; font-size: 14.5px; font-weight: 550; padding: 7px 12px; border-radius: 8px; }
.nav-links a:hover { opacity: 1; text-decoration: none; background: var(--hover); }
.on-dark .nav-links a:hover { background: rgba(255, 255, 255, .07); }
.nav-links a[aria-current] { opacity: 1; color: var(--accent); }
.on-dark .nav-links a[aria-current] { color: var(--hud-2); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.icon-btn { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--line); background: transparent; color: inherit; cursor: pointer; }
.on-dark .icon-btn { border-color: var(--night-line); }
.icon-btn:hover { background: var(--hover); }
.nav-toggle { display: none; }

/* ---- buttons --------------------------------------------------------- */
.btn { display: inline-flex; align-items: center; gap: 8px; font: 600 15px/1 var(--font); padding: 13px 20px; border-radius: 11px; border: 1px solid transparent; cursor: pointer; text-decoration: none !important; transition: transform .15s, box-shadow .15s, background .15s; white-space: nowrap; }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 8px 24px rgba(79, 70, 229, .35); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 12px 30px rgba(79, 70, 229, .45); }
.btn-ghost { background: transparent; color: inherit; border-color: var(--line-2); }
.btn-ghost:hover { background: var(--hover); }
.on-dark .btn-ghost, .dark .btn-ghost { border-color: rgba(255, 255, 255, .22); color: var(--night-ink); }
.dark .btn-ghost:hover { background: rgba(255, 255, 255, .07); }
.btn-sm { padding: 8px 14px; font-size: 13.5px; border-radius: 9px; }
.btn .ico { width: 17px; height: 17px; }

/* ---- dark sections & hero ------------------------------------------- */
.dark { background: var(--night); color: var(--night-ink); --muted: var(--night-muted); --line: var(--night-line); --panel: var(--night-3); --hover: rgba(255, 255, 255, .05); }
.dark a:not(.btn) { color: var(--hud-2); }
.hero { position: relative; overflow: hidden; padding: 72px 0 64px; isolation: isolate; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -2;
  background: radial-gradient(900px 500px at 78% 30%, rgba(79, 70, 229, .32), transparent 60%),
              radial-gradient(700px 420px at 8% 90%, rgba(20, 184, 166, .16), transparent 60%),
              linear-gradient(180deg, #070b14, #0b1220 70%, #070b14); }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5;
  background-image: linear-gradient(rgba(148, 163, 184, .07) 1px, transparent 1px), linear-gradient(90deg, rgba(148, 163, 184, .07) 1px, transparent 1px);
  background-size: 48px 48px; mask-image: radial-gradient(ellipse at 60% 40%, #000 30%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse at 60% 40%, #000 30%, transparent 75%); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr); gap: 48px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font: 650 12.5px/1 var(--font); letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; }
.dark .eyebrow { color: var(--hud); }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px 6px 6px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel); font-size: 13px; font-weight: 550; color: var(--ink-2); }
.dark .pill { background: rgba(255, 255, 255, .04); color: var(--night-ink); }
.pill b { background: var(--accent); color: #fff; font-size: 11px; padding: 3px 8px; border-radius: 999px; letter-spacing: .04em; }
.hero h1 { margin: 22px 0 18px; }
.hero h1 .grad { background: linear-gradient(92deg, #a5b4fc, #5eead4 70%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--muted); max-width: 40em; }
.dark .lede { color: #b6c0d2; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-note { margin-top: 22px; font-size: 13px; color: var(--night-muted); display: flex; gap: 8px; align-items: center; }
.hero-note .dot { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 0 4px rgba(34, 197, 94, .18); }
.page-hero { padding: 72px 0 56px; }
.page-hero h1 { font-size: clamp(2rem, 4.4vw, 3.2rem); margin: 6px 0 14px; }

/* ---- the live boom-camera view -------------------------------------- */
.scope { position: relative; border-radius: var(--r-xl); overflow: hidden; background: #0a0f1a; border: 1px solid rgba(165, 180, 252, .22);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .55), 0 0 0 1px rgba(255, 255, 255, .02) inset, 0 0 120px rgba(79, 70, 229, .25); }
.scope-bar { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 12px; background: #007a33; color: #fff; font: 700 10.5px/1 var(--font); letter-spacing: .12em; }
.scope-bar span:last-child { opacity: .8; font-weight: 600; white-space: nowrap; }
@media (max-width: 620px) { .scope-bar { font-size: 9px; letter-spacing: .08em; } }
.scope canvas { display: block; width: 100%; aspect-ratio: 16 / 10.5; }
.hud { position: absolute; font: 500 11px/1.35 var(--mono); color: #d7e3f4; pointer-events: none; }
.hud-tl { top: 44px; left: 12px; background: rgba(7, 11, 20, .66); border: 1px solid rgba(148, 163, 184, .18); border-radius: 10px; padding: 9px 11px; display: grid; grid-template-columns: auto auto; gap: 4px 18px; backdrop-filter: blur(6px); }
.hud-tl small { display: block; font-size: 9px; letter-spacing: .14em; color: #8a94a6; text-transform: uppercase; }
.hud-tl b { font-size: 15px; font-weight: 600; color: #fff; }
.hud-tl b.ok { color: #4ade80; } .hud-tl b.warn { color: #fbbf24; } .hud-tl b.bad { color: #f87171; }
.hud-event { top: 44px; right: 12px; max-width: 46%; background: rgba(251, 191, 36, .14); border: 1px solid rgba(251, 191, 36, .5); color: #fde68a; border-radius: 10px; padding: 8px 10px; opacity: 0; transform: translateY(-6px); transition: opacity .3s, transform .3s; }
.hud-event.show { opacity: 1; transform: none; }
.hud-event.info { background: rgba(94, 234, 212, .12); border-color: rgba(94, 234, 212, .45); color: #99f6e4; }
.hud-event.bad { background: rgba(248, 113, 113, .14); border-color: rgba(248, 113, 113, .5); color: #fecaca; }
.scope-foot { padding: 10px 12px 12px; background: #0a0f1a; border-top: 1px solid rgba(148, 163, 184, .12); }
.strip { position: relative; height: 10px; border-radius: 6px; overflow: hidden; display: flex; background: #1e293b; }
.strip i { display: block; height: 100%; }
.strip .head { position: absolute; top: -3px; bottom: -3px; width: 2px; background: #fff; box-shadow: 0 0 8px #fff; border-radius: 2px; }
.strip .tick { position: absolute; top: 0; bottom: 0; width: 2px; background: #fbbf24; }
.scope-ctl { display: flex; align-items: center; gap: 6px; margin-top: 10px; flex-wrap: wrap; }
.scope-ctl button { font: 600 12px/1 var(--font); color: #cbd5e1; background: rgba(255, 255, 255, .05); border: 1px solid rgba(148, 163, 184, .2); padding: 7px 10px; border-radius: 8px; cursor: pointer; }
.scope-ctl button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.scope-ctl .sp { flex: 1; }
.scope-ctl .t { font: 500 11px var(--mono); color: #8a94a6; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 10px; font-size: 11px; color: #8a94a6; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }

/* ---- sections -------------------------------------------------------- */
section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.alt { background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 760px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { font-size: 1.1rem; color: var(--muted); }

/* stat strip */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.stat { background: var(--panel); padding: 26px 24px; }
.dark .stat { background: rgba(255, 255, 255, .03); }
.stat b { display: block; font-size: clamp(1.9rem, 3.4vw, 2.6rem); font-weight: 750; letter-spacing: -.035em; line-height: 1.05; font-variant-numeric: tabular-nums; }
.stat b.accent { color: var(--accent); } .dark .stat b.accent { color: var(--hud); }
.stat > span { display: block; font-size: 14px; color: var(--muted); margin-top: 8px; }
.stat > small { display: block; font-size: 11.5px; color: var(--muted); margin-top: 8px; opacity: .85; }
.trust-row { display: flex; flex-wrap: wrap; gap: 10px 26px; align-items: center; justify-content: center; margin-top: 40px; font-size: 13px; color: var(--night-muted); }
.trust-row span { display: inline-flex; gap: 8px; align-items: center; }
.trust-row .ico { width: 16px; height: 16px; color: var(--hud); }

/* cards */
.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 26px; box-shadow: var(--sh-1); position: relative; }
.card h3 { margin-top: 14px; }
.card p { color: var(--muted); font-size: 15px; margin: 0; }
.card .chip-ico { width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); }
.dark .card .chip-ico { background: rgba(94, 234, 212, .1); color: var(--hud); }
a.card { color: inherit; transition: transform .18s, box-shadow .18s, border-color .18s; }
a.card:hover { text-decoration: none; transform: translateY(-2px); box-shadow: var(--sh-3); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
a.card .more { display: inline-flex; gap: 6px; align-items: center; margin-top: 14px; font-size: 14px; font-weight: 600; color: var(--accent); }
.card-num { font: 700 12px var(--mono); color: var(--accent); letter-spacing: .08em; }

/* steps: how it works */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; counter-reset: s; position: relative; }
.step { padding: 0 22px 0 0; position: relative; }
.step .n { min-width: 44px; padding: 0 10px; width: fit-content; height: 44px; border-radius: 22px; display: grid; place-items: center; font: 700 15px var(--mono); background: var(--panel); border: 1px solid var(--line-2); color: var(--accent); position: relative; z-index: 1; }
.step::before { content: ""; position: absolute; top: 22px; left: 44px; right: 0; height: 2px; background: linear-gradient(90deg, var(--accent), transparent); opacity: .35; }
.step:last-child::before { display: none; }
.step h3 { margin-top: 18px; }
.step p { color: var(--muted); font-size: 15px; }

/* feature rows */
.feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 56px; align-items: center; }
.feature + .feature { margin-top: 110px; }
.feature.flip > :first-child { order: 2; }
.feature h2 { font-size: clamp(1.5rem, 2.8vw, 2.1rem); }
.feature p { color: var(--muted); font-size: 1.05rem; }
.checks { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.checks li { display: flex; gap: 10px; font-size: 15px; color: var(--ink-2); }
.checks li::before { content: ""; flex: none; width: 20px; height: 20px; margin-top: 2px; border-radius: 50%; background: var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234f46e5' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12l4 4 8-8'/%3E%3C/svg%3E") center / 12px no-repeat; }
.dark .checks li { color: #cbd5e1; }
.shot { border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--sh-3); background: var(--panel); }
.shot.browser::before { content: ""; display: block; height: 28px; background: var(--panel-2) radial-gradient(circle at 14px 14px, #f87171 4px, transparent 5px), var(--panel-2); border-bottom: 1px solid var(--line);
  background-image: radial-gradient(circle at 16px 14px, #f87171 4.5px, transparent 5px), radial-gradient(circle at 32px 14px, #fbbf24 4.5px, transparent 5px), radial-gradient(circle at 48px 14px, #4ade80 4.5px, transparent 5px); }
.shot img { width: 100%; height: auto; }
.caption { font-size: 13px; color: var(--muted); margin-top: 12px; }

/* before / after compare */
.compare { position: relative; border-radius: var(--r-lg); overflow: hidden; aspect-ratio: 567 / 318; user-select: none; touch-action: pan-y; border: 1px solid var(--line); box-shadow: var(--sh-3); background: #111; }
.compare img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.compare .top { clip-path: inset(0 0 0 var(--x, 50%)); }
.compare .handle { position: absolute; top: 0; bottom: 0; left: var(--x, 50%); width: 2px; background: #fff; transform: translateX(-1px); box-shadow: 0 0 12px rgba(0, 0, 0, .6); }
.compare .handle::after { content: "\2194"; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 40px; height: 40px; border-radius: 50%; background: #fff; color: #111; display: grid; place-items: center; font-size: 18px; font-weight: 700; box-shadow: 0 6px 18px rgba(0, 0, 0, .35); }
.compare .tag { position: absolute; bottom: 12px; font: 700 11px/1 var(--font); letter-spacing: .1em; text-transform: uppercase; background: rgba(0, 0, 0, .6); color: #fff; padding: 6px 9px; border-radius: 6px; }
.compare .tag.l { left: 12px; } .compare .tag.r { right: 12px; }
.compare input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; margin: 0; }
.tabs { display: inline-flex; gap: 4px; padding: 4px; border-radius: 12px; background: var(--panel-2); border: 1px solid var(--line); margin-bottom: 14px; flex-wrap: wrap; }
.tabs button { font: 600 13.5px/1 var(--font); border: 0; background: transparent; color: var(--muted); padding: 9px 14px; border-radius: 9px; cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--panel); color: var(--ink); box-shadow: var(--sh-2); }
.dark .tabs { background: rgba(255, 255, 255, .04); } .dark .tabs button[aria-selected="true"] { background: rgba(255, 255, 255, .1); color: #fff; }

/* score demo */
.scorecard { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 28px; align-items: center; }
.ring { position: relative; width: 170px; height: 170px; }
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring circle { fill: none; stroke-width: 12; }
.ring .bg { stroke: var(--line); }
.ring .fg { stroke: url(#ringgrad); stroke-linecap: round; transition: stroke-dashoffset 1.4s cubic-bezier(.2, .8, .2, 1); }
.ring .val { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; }
.ring .val b { font-size: 44px; font-weight: 750; letter-spacing: -.04em; line-height: 1; }
.ring .val small { display: block; font-size: 12px; color: var(--muted); margin-top: 4px; }
.bars { display: grid; gap: 12px; }
.bar { display: grid; grid-template-columns: 96px minmax(0, 1fr) 40px; gap: 12px; align-items: center; font-size: 14px; }
.bar .track { height: 9px; border-radius: 6px; background: var(--line); overflow: hidden; }
.bar .fill { height: 100%; width: 0; border-radius: 6px; background: linear-gradient(90deg, var(--accent), #14b8a6); transition: width 1.2s cubic-bezier(.2, .8, .2, 1); }
.bar .fill.warn { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.bar .fill.bad { background: linear-gradient(90deg, #ef4444, #f87171); }
.bar b { font-variant-numeric: tabular-nums; text-align: right; }
.grade { display: inline-flex; gap: 6px; align-items: center; font-size: 13px; font-weight: 650; padding: 5px 10px; border-radius: 999px; }
.grade.good { background: var(--good-soft); color: var(--good); } .grade.warn { background: var(--warn-soft); color: var(--warn); } .grade.bad { background: var(--bad-soft); color: var(--bad); }

/* calculator */
.calc { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; align-items: stretch; }
.calc label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.calc .row { margin-bottom: 22px; }
.calc .row span { float: right; font: 600 14px var(--mono); color: var(--accent); }
.dark .calc .row span { color: var(--hud); }
input[type=range] { width: 100%; accent-color: var(--accent); }
.calc-out { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line); }
.calc-out div { background: var(--panel); padding: 22px; }
.dark .calc-out div { background: rgba(255, 255, 255, .03); }
.calc-out b { display: block; font-size: 1.9rem; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.calc-out span { font-size: 13px; color: var(--muted); }

/* tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--panel); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th, td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 650; background: var(--panel-2); }
tr:last-child td { border-bottom: 0; }
td.y { color: var(--good); font-weight: 650; } td.n { color: var(--muted); } td.p { color: var(--warn); font-weight: 600; }
.us { background: var(--accent-soft); }

/* CTA band, footer */
.cta-band { border-radius: var(--r-xl); padding: 56px; position: relative; overflow: hidden; background: radial-gradient(600px 300px at 90% 0%, rgba(94, 234, 212, .2), transparent 60%), linear-gradient(135deg, #312e81, #0b1220 70%); color: #fff; display: grid; grid-template-columns: minmax(0, 1.4fr) auto; gap: 32px; align-items: center; }
.cta-band h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); margin: 0 0 10px; }
.cta-band p { color: #c7d2fe; margin: 0; font-size: 1.05rem; }
.footer { padding: 56px 0 40px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(4, minmax(0, 1fr)); gap: 32px; }
.footer h4 { font-size: 12px; text-transform: uppercase; letter-spacing: .1em; color: var(--ink); margin-bottom: 12px; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer a { color: var(--muted); } .footer a:hover { color: var(--ink); }
.fine { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 12.5px; display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }

/* notices */
.notice { display: flex; gap: 12px; padding: 14px 16px; border-radius: var(--r); background: var(--info-soft); border: 1px solid color-mix(in srgb, var(--info) 30%, transparent); font-size: 14.5px; color: var(--ink-2); margin: 18px 0; }
.notice .ico { color: var(--info); margin-top: 2px; }
.notice.warn { background: var(--warn-soft); border-color: color-mix(in srgb, var(--warn) 35%, transparent); } .notice.warn .ico { color: var(--warn); }
.notice.good { background: var(--good-soft); border-color: color-mix(in srgb, var(--good) 35%, transparent); } .notice.good .ico { color: var(--good); }
.notice p:last-child { margin: 0; }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

/* pipeline diagram */
.pipe { width: 100%; height: auto; }
.pipe .node rect { fill: var(--panel); stroke: var(--line-2); }
.pipe .node text { fill: var(--ink); font: 600 13px var(--font); }
.pipe .node .sub { fill: var(--muted); font: 500 11px var(--font); }
.pipe .edge { stroke: var(--line-2); stroke-width: 2; fill: none; }
.pipe .flow { stroke: var(--accent); stroke-width: 2.5; fill: none; stroke-dasharray: 6 14; animation: flow 1.6s linear infinite; }
.pipe .gate rect { fill: var(--warn-soft); stroke: var(--warn); }
.pipe .secure rect { fill: var(--good-soft); stroke: var(--good); }
@keyframes flow { to { stroke-dashoffset: -40; } }
@media (prefers-reduced-motion: reduce) { .pipe .flow { animation: none; } }

/* ---- docs layout (help + developers) -------------------------------- */
.docs-hero { padding: 44px 0 36px; border-bottom: 1px solid var(--line); background: var(--panel); }
.docs-hero h1 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); margin: 4px 0 10px; }
.docs-hero p { color: var(--muted); font-size: 1.05rem; max-width: 46em; margin: 0; }
.search { position: relative; max-width: 640px; margin-top: 22px; }
.search input { width: 100%; font: 16px var(--font); padding: 14px 16px 14px 46px; border-radius: 12px; border: 1px solid var(--line-2); background: var(--bg); color: var(--ink); }
.search input:focus { outline: none; box-shadow: var(--ring); border-color: var(--accent); }
.search > .ico { position: absolute; left: 15px; top: 15px; color: var(--muted); }
.search-results { position: absolute; left: 0; right: 0; top: calc(100% + 6px); background: var(--panel); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--sh-3); z-index: 30; max-height: 420px; overflow: auto; padding: 6px; }
.search-results a { display: block; padding: 10px 12px; border-radius: 8px; color: var(--ink); }
.search-results a:hover, .search-results a.on { background: var(--accent-soft); text-decoration: none; }
.search-results small { display: block; color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.search-results .empty { padding: 12px; color: var(--muted); font-size: 14px; }
.docs { display: grid; grid-template-columns: 250px minmax(0, 1fr) 200px; gap: 40px; padding-top: 36px; padding-bottom: 80px; }
.docs-side { position: sticky; top: calc(var(--nav-h) + var(--banner-h) + 20px); align-self: start; max-height: calc(100vh - var(--nav-h) - 60px); overflow: auto; font-size: 14.5px; }
.docs-side h5 { font-size: 11.5px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin: 22px 0 8px; }
.docs-side h5:first-child { margin-top: 0; }
.docs-side a { display: block; padding: 6px 10px; border-radius: 8px; color: var(--ink-2); }
.docs-side a:hover { background: var(--hover); text-decoration: none; }
.docs-side a[aria-current] { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.toc { position: sticky; top: calc(var(--nav-h) + var(--banner-h) + 20px); align-self: start; font-size: 13px; }
.toc h5 { font-size: 11.5px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin: 0 0 8px; }
.toc a { display: block; padding: 4px 0 4px 12px; color: var(--muted); border-left: 2px solid var(--line); }
.toc a.on { color: var(--accent); border-left-color: var(--accent); }
.toc a:hover { color: var(--ink); text-decoration: none; }
.prose { min-width: 0; font-size: 16px; }
.prose h1 { font-size: 2.2rem; margin-bottom: .3em; }
.prose h2 { font-size: 1.5rem; margin: 2.2em 0 .6em; padding-top: .2em; letter-spacing: -.02em; }
.prose h3 { font-size: 1.12rem; margin: 1.8em 0 .5em; }
.prose p, .prose li { color: var(--ink-2); }
.prose ul, .prose ol { padding-left: 1.3em; } .prose li { margin: .35em 0; }
.prose .table-wrap { margin: 1.2em 0; }
.prose table { font-size: 14px; }
.prose img { border-radius: var(--r); border: 1px solid var(--line); margin: 1.2em 0; }
.prose .lead { font-size: 1.15rem; color: var(--muted); }
.prose .anchor { opacity: 0; margin-left: 8px; color: var(--muted); font-weight: 400; }
.prose h2:hover .anchor, .prose h3:hover .anchor { opacity: 1; }
pre { position: relative; background: #0b1220; color: #e2e8f0; border-radius: var(--r); padding: 16px 18px; overflow: auto; font-size: 13.5px; line-height: 1.6; border: 1px solid #1e293b; margin: 1.2em 0; }
pre code { background: none; padding: 0; font-size: inherit; color: inherit; }
pre .c { color: #64748b; } pre .k { color: #a5b4fc; } pre .s { color: #5eead4; } pre .n { color: #fbbf24; }
.copy { position: absolute; top: 8px; right: 8px; font: 600 11.5px var(--font); color: #cbd5e1; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12); border-radius: 6px; padding: 5px 8px; cursor: pointer; opacity: 0; transition: opacity .15s; }
pre:hover .copy, .copy:focus { opacity: 1; }
.kbd, kbd { font: 600 12px var(--mono); padding: 2px 6px; border-radius: 5px; border: 1px solid var(--line-2); background: var(--panel-2); }
.method { display: inline-block; min-width: 58px; text-align: center; font: 700 11.5px/1 var(--mono); padding: 5px 7px; border-radius: 6px; letter-spacing: .04em; }
.m-get { background: var(--info-soft); color: var(--info); } .m-post { background: var(--good-soft); color: var(--good); } .m-put { background: var(--warn-soft); color: var(--warn); } .m-delete { background: var(--bad-soft); color: var(--bad); }
.endpoint { border: 1px solid var(--line); border-radius: var(--r); background: var(--panel); margin: 10px 0; }
.endpoint summary { display: flex; gap: 12px; align-items: center; padding: 12px 14px; cursor: pointer; list-style: none; font-size: 14px; }
.endpoint summary::-webkit-details-marker { display: none; }
.endpoint summary code { background: none; padding: 0; font-size: 13.5px; color: var(--ink); font-weight: 600; }
.endpoint summary .what { color: var(--muted); margin-left: auto; text-align: right; font-size: 13.5px; }
.endpoint[open] summary { border-bottom: 1px solid var(--line); }
.endpoint .body { padding: 14px 16px; font-size: 14px; }
.endpoint .body table { font-size: 13px; }
.endpoint .body pre { margin: .8em 0 0; }
.role { display: inline-block; font: 600 11px var(--font); padding: 3px 8px; border-radius: 999px; background: var(--mute-soft); color: var(--ink-2); }
.cards-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 1.4em 0; }
.cards-links a { display: block; border: 1px solid var(--line); border-radius: var(--r); padding: 16px 18px; background: var(--panel); color: var(--ink); }
.cards-links a:hover { border-color: var(--accent); text-decoration: none; }
.cards-links a small { display: block; color: var(--muted); font-size: 13.5px; margin-top: 4px; }
.pager { display: flex; justify-content: space-between; gap: 14px; margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line); }
.pager a { flex: 1; border: 1px solid var(--line); border-radius: var(--r); padding: 14px 16px; color: var(--ink); background: var(--panel); }
.pager a:hover { border-color: var(--accent); text-decoration: none; }
.pager a small { display: block; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.pager a.next { text-align: right; }
.helpful { margin-top: 40px; padding: 18px; border-radius: var(--r); background: var(--panel-2); border: 1px solid var(--line); display: flex; gap: 12px; align-items: center; flex-wrap: wrap; font-size: 14px; }
details.faq { border-bottom: 1px solid var(--line); padding: 4px 0; }
details.faq summary { cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
details.faq summary::after { content: "+"; font-size: 20px; color: var(--muted); line-height: 1; }
details.faq[open] summary::after { content: "\2212"; }
details.faq p { color: var(--ink-2); }

/* ---- responsive ------------------------------------------------------ */
@media (max-width: 1100px) {
  .docs { grid-template-columns: 220px minmax(0, 1fr); }
  .toc { display: none; }
}
@media (max-width: 960px) {
  .hero-grid, .feature, .calc, .scorecard { grid-template-columns: minmax(0, 1fr); }
  .feature.flip > :first-child { order: 0; }
  .feature { gap: 32px; }
  .g3, .g4, .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { gap: 32px 0; } .step::before { display: none; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-band { grid-template-columns: 1fr; padding: 36px; }
  .nav-links { display: none; position: absolute; top: var(--nav-h); left: 0; right: 0; flex-direction: column; background: var(--panel); border-bottom: 1px solid var(--line); padding: 10px 16px 16px; margin: 0; }
  .on-dark .nav-links { background: #0b1220; }
  .nav.open .nav-links { display: flex; }
  .nav-toggle { display: inline-grid; }
  .nav .nav-right .btn { display: none; }
  .docs { grid-template-columns: minmax(0, 1fr); padding-top: 20px; }
  .docs-side { position: static; max-height: none; border: 1px solid var(--line); border-radius: var(--r); padding: 12px; background: var(--panel); }
  .docs-side.collapsed nav { display: none; }
  .docs-side .side-toggle { display: flex !important; }
}
@media (max-width: 620px) {
  .wrap { padding: 0 16px; }
  section { padding: 64px 0; }
  .hero { padding: 40px 0 48px; }
  .g2, .g3, .g4, .steps, .cards-links { grid-template-columns: minmax(0, 1fr); }
  .stats { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .stat { padding: 18px 16px; }
  .footer-grid { grid-template-columns: 1fr; }
  .hud-tl { grid-template-columns: auto auto; gap: 2px 12px; padding: 7px 9px; top: 40px; } .hud-tl b { font-size: 13px; }
  .hud-event { display: none; }
  .bar { grid-template-columns: 80px minmax(0, 1fr) 34px; }
  .calc-out { grid-template-columns: 1fr; }
  .endpoint summary { flex-wrap: wrap; } .endpoint summary .what { margin-left: 0; text-align: left; width: 100%; }
  .scorecard { justify-items: center; }
  .scorecard .bars { width: 100%; }
}
.side-toggle { display: none; width: 100%; justify-content: space-between; align-items: center; background: none; border: 0; font: 600 14px var(--font); color: var(--ink); cursor: pointer; padding: 4px 2px; }