/* Reelsmith landing page. Motion-style palette; dark by default, light via prefers-color-scheme. Mobile first. */

:root {
  --ink: #0B0F19;
  --violet: #7C5CFF;
  --violet-btn: #6D4AFF;
  --cyan: #22D3EE;
  --text: #F5F7FF;
  --muted: #A3A9C2;
  --bg: #0B0F19;
  --bg-alt: #0F1424;
  --surface: #131A2E;
  --surface-2: #1A2240;
  --border: #242D4A;
  --link: #A895FF;
  --accent-text: #22D3EE;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --display: 'Sora', 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --gutter: 16px;
}

@media (prefers-color-scheme: light) {
  :root {
    --text: #0B0F19;
    --muted: #4A5068;
    --bg: #F7F8FC;
    --bg-alt: #EEF0F8;
    --surface: #FFFFFF;
    --surface-2: #F1F2F9;
    --border: #DDE1EE;
    --link: #5B3DF5;
    --accent-text: #0E7490;
    --shadow: 0 20px 50px rgba(11, 15, 25, 0.12);
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--sans);
  overflow-x: hidden;
}
a { color: var(--link); text-underline-offset: 2px; }
img { max-width: 100%; }
code { font-family: var(--mono); font-size: 0.88em; }
h1, h2, h3 { font-family: var(--display); letter-spacing: -0.02em; line-height: 1.15; margin: 0; text-wrap: balance; }
p { margin: 0; }

.skip { position: absolute; left: -9999px; top: 8px; }
.skip:focus { left: 8px; z-index: 100; background: var(--surface); color: var(--text); padding: 8px 12px; border-radius: 8px; }

.wrap { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 var(--gutter); }
.center { text-align: center; }
.small { font-size: 14px; color: var(--muted); }

/* ── nav ──────────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 30;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { height: 60px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; }
.brand span { font: 700 19px/1 var(--display); letter-spacing: -0.01em; }
.nav-links { display: flex; gap: 18px; }
.nav-links a { color: var(--text); text-decoration: none; font-weight: 500; font-size: 15px; }
.nav-links a:hover { color: var(--link); }

/* ── buttons ──────────────────────────────────────────────────────────────── */
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.center-cta { justify-content: center; margin-top: 20px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 22px;
  border-radius: 12px;
  font: 600 16px/1 var(--sans);
  text-decoration: none;
  border: 1px solid transparent;
}
.btn-primary { background: var(--violet-btn); color: #FFFFFF; box-shadow: 0 8px 24px rgba(109, 74, 255, 0.35); }
.btn-primary:hover { background: #5B3DF5; }
.btn-ghost { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--link); }

/* ── hero ─────────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 48px 0 56px;
  background:
    radial-gradient(60% 50% at 85% 10%, rgba(124, 92, 255, 0.22), transparent 70%),
    radial-gradient(40% 35% at 5% 55%, rgba(34, 211, 238, 0.10), transparent 70%);
}
.hero-grid { display: grid; gap: 40px; }
.eyebrow {
  display: inline-block;
  font: 600 13px/1 var(--mono);
  letter-spacing: 0.04em;
  color: var(--accent-text);
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}
.hero h1 { font-size: 46px; font-weight: 800; margin-top: 18px; }
.grad {
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.lede { font: 600 20px/1.4 var(--display); margin-top: 16px; }
.pitch { margin-top: 14px; color: var(--muted); font-size: 17px; max-width: 560px; }

.hero-visual { position: relative; display: grid; gap: 20px; justify-items: center; }
.terminal {
  width: 100%;
  background: #0A0E1A;
  border: 1px solid #242D4A;
  border-radius: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.term-bar { display: flex; align-items: center; gap: 7px; padding: 10px 12px; background: #121832; border-bottom: 1px solid #242D4A; }
.term-bar i { width: 11px; height: 11px; border-radius: 50%; background: #F87171; }
.term-bar i:nth-child(2) { background: #FBBF24; }
.term-bar i:nth-child(3) { background: #34D399; }
.term-bar span { margin-left: 8px; font: 500 12px/1 var(--mono); color: #7E86A6; }
.term-body {
  margin: 0;
  padding: 14px 14px 16px;
  font: 12.5px/1.75 var(--mono);
  color: #E6E9F5;
  white-space: pre-wrap;
  word-break: break-word;
}
.term-body .p, .install .p { color: #A895FF; }
.term-body .c { color: #7E86A6; }
.term-body .ok { color: #34D399; }

.phone {
  width: 200px;
  aspect-ratio: 9 / 16;
  padding: 9px;
  border-radius: 34px;
  background: linear-gradient(160deg, #2A3354, #0F1424);
  box-shadow: var(--shadow), inset 0 0 0 1px #343E63;
}
.phone-screen {
  position: relative;
  height: 100%;
  border-radius: 26px;
  overflow: hidden;
  background: radial-gradient(120% 70% at 50% 30%, #141B33 0%, #0B0F19 70%);
  padding: 30px 22px;
  color: #F5F7FF;
}
.ph-label { font: 700 10px/1 var(--mono); letter-spacing: 0.16em; color: #22D3EE; }
.ph-num { font: 800 76px/1 var(--display); margin-top: 26px; letter-spacing: -0.04em;
  background: linear-gradient(180deg, #FFFFFF, #A895FF); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ph-word { font: 700 22px/1.2 var(--display); margin-top: 4px; }
.ph-card {
  display: flex; align-items: center; gap: 8px;
  margin-top: 22px; padding: 10px 12px;
  border-radius: 12px;
  background: rgba(124, 92, 255, 0.16);
  border: 1px solid rgba(124, 92, 255, 0.5);
  font: 600 12.5px/1.3 var(--sans);
}
.ph-dot { width: 8px; height: 8px; border-radius: 50%; background: #34D399; flex: none; }
.ph-sub {
  position: absolute; left: 16px; right: 16px; bottom: 34px;
  text-align: center;
  font: 600 13px/1.4 var(--sans);
  color: rgba(245, 247, 255, 0.82);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.85);
}
.ph-sub b { color: #22D3EE; font-weight: 700; }

/* ── sections ─────────────────────────────────────────────────────────────── */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.kicker { font: 600 13px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-text); }
.section h2 { font-size: 30px; font-weight: 700; margin-top: 12px; max-width: 820px; }
.section-lede { color: var(--muted); margin-top: 12px; max-width: 640px; }

/* steps */
.steps { list-style: none; padding: 0; margin: 32px 0 0; display: grid; gap: 16px; }
.steps li {
  position: relative;
  padding: 22px 20px 20px;
  border-radius: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
}
.step-n {
  display: inline-grid; place-items: center;
  width: 32px; height: 32px; border-radius: 10px;
  font: 700 15px/1 var(--display);
  color: #FFFFFF;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
}
.steps h3 { font-size: 20px; margin-top: 14px; }
.steps p { color: var(--muted); margin-top: 8px; }
.steps code {
  display: inline-block; margin-top: 14px;
  padding: 5px 9px; border-radius: 8px;
  background: var(--surface-2); color: var(--accent-text);
  border: 1px solid var(--border);
}

/* pipeline diagram */
.pipeline { margin: 40px 0 0; }
.pipeline svg { display: block; width: 100%; height: auto; }
.pipe-h { display: none !important; }
.pipe-v { max-width: 360px; margin: 0 auto; }
.pipe-node rect { fill: var(--surface); stroke: var(--border); stroke-width: 1.5; }
.pipe-end rect { fill: url(#pg); stroke: none; }
.pipe-node text { font: 600 17px var(--mono); fill: var(--text); text-anchor: middle; dominant-baseline: middle; }
.pipe-end text { fill: #FFFFFF; }
.pipe-node text.pipe-sub { font: 500 14px var(--sans); fill: var(--muted); }
.pipe-end text.pipe-sub { fill: var(--muted); }
.pipe-node text.pipe-sub-v { text-anchor: start; }
.pipe-lines line { stroke: var(--violet); stroke-width: 2.5; stroke-dasharray: 5 5; }
.pipe-arrow { fill: var(--violet); }
.pipeline figcaption { margin: 24px auto 0; max-width: 680px; text-align: center; color: var(--muted); font-size: 15px; }

/* features */
.features { display: grid; gap: 14px; margin-top: 32px; }
.feature {
  padding: 20px;
  border-radius: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
}
.ico {
  display: inline-grid; place-items: center;
  min-width: 40px; height: 40px; padding: 0 8px;
  border-radius: 11px;
  font: 700 14px/1 var(--mono);
  color: var(--accent-text);
  background: var(--surface-2);
  border: 1px solid var(--border);
}
.feature h3 { font-size: 18px; margin-top: 14px; }
.feature p { color: var(--muted); margin-top: 8px; font-size: 15px; }
.feature code { color: var(--text); }

/* agents */
.agent-grid { display: grid; gap: 32px; }
.agent-grid > div > p { color: var(--muted); margin-top: 14px; max-width: 560px; }
.agent-grid > div > p a { font-weight: 600; }
.skills { list-style: none; padding: 0; margin: 20px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.skills code {
  display: inline-block;
  padding: 6px 10px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text); font-size: 13px;
}
.chat {
  display: grid; gap: 10px; align-content: start;
  padding: 18px;
  border-radius: 18px;
  background: #0A0E1A;
  border: 1px solid #242D4A;
  box-shadow: var(--shadow);
  color: #E6E9F5;
}
.msg { padding: 10px 12px; border-radius: 12px; font-size: 14.5px; line-height: 1.45; max-width: 92%; }
.msg .who { display: block; font: 700 11px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 6px; color: #7E86A6; }
.msg.you { justify-self: end; background: #2A2160; border: 1px solid #4B3AA8; }
.msg.bot { justify-self: start; background: #141B33; border: 1px solid #242D4A; }
.gate {
  justify-self: center;
  font: 600 11px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase;
  color: #FBBF24;
  padding: 6px 10px; border-radius: 999px;
  border: 1px dashed rgba(251, 191, 36, 0.55);
}

/* plugin kinds */
.kinds { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 32px; }
.kind { padding: 18px; border-radius: 16px; background: var(--surface); border: 1px solid var(--border); }
.kind-name { font: 700 20px/1 var(--mono); color: var(--accent-text); }
.kind p:nth-child(2) { margin-top: 10px; font-weight: 600; }
.kind-built { margin-top: 6px; font: 500 12.5px/1.5 var(--mono); color: var(--muted); overflow-wrap: anywhere; }
.code-snip {
  margin: 20px 0 0;
  padding: 16px;
  border-radius: 14px;
  background: #0A0E1A;
  border: 1px solid #242D4A;
  color: #E6E9F5;
  font: 13px/1.7 var(--mono);
  overflow-x: auto;
}
.code-snip .k { color: #A895FF; }
.code-snip .s { color: #34D399; }
.code-snip .c { color: #7E86A6; }
#plugins .center { margin-top: 18px; font-weight: 600; }

/* tutorials */
.tuts { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 32px; }
.tut {
  display: block;
  color: var(--text);
  text-decoration: none;
  border-radius: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.tut:hover { border-color: var(--link); transform: translateY(-2px); }
.poster {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background:
    radial-gradient(90% 60% at 80% 10%, rgba(124, 92, 255, 0.55), transparent 70%),
    radial-gradient(80% 50% at 10% 95%, rgba(34, 211, 238, 0.35), transparent 70%),
    #0B0F19;
}
.poster img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ep {
  position: absolute; left: 12px; top: 10px;
  font: 800 34px/1 var(--display);
  color: rgba(245, 247, 255, 0.92);
  letter-spacing: -0.03em;
}
.play {
  position: absolute; left: 50%; top: 50%;
  width: 46px; height: 46px; margin: -23px 0 0 -23px;
  border-radius: 50%;
  background: rgba(245, 247, 255, 0.14);
  border: 1px solid rgba(245, 247, 255, 0.35);
}
.play::after {
  content: '';
  position: absolute; left: 18px; top: 14px;
  border-style: solid; border-width: 9px 0 9px 14px;
  border-color: transparent transparent transparent #F5F7FF;
}
.tut h3 { font-size: 15px; line-height: 1.3; margin: 12px 12px 0; }
.tut p { font-size: 13.5px; color: var(--muted); margin: 6px 12px 14px; line-height: 1.45; }
.poster img { object-position: center 30%; }
.poster::before {
  content: ''; position: absolute; inset: 0 0 auto; height: 38%; z-index: 1;
  background: linear-gradient(rgba(11, 15, 25, 0.85), transparent);
}
.poster .ep, .poster .play { z-index: 2; }
.poster .ep { text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6); }
.tut:hover .play, .tut:focus-visible .play { background: var(--violet-btn); border-color: var(--violet-btn); }

/* tutorial player (assets/player.js) */
.player {
  width: 100%; max-width: 860px; max-height: 100dvh;
  padding: 0; border: 1px solid var(--border); border-radius: 20px;
  background: var(--surface); color: var(--text);
  box-shadow: var(--shadow);
}
.player::backdrop { background: rgba(5, 8, 15, 0.82); backdrop-filter: blur(6px); }
body:has(.player[open]) { overflow: hidden; }
.player-inner { display: grid; }
.player-stage { position: relative; background: #000; display: grid; place-items: center; }
.player-stage video {
  display: block; width: 100%;
  height: min(72dvh, calc(100vw * 16 / 9)); /* 9:16 shorts; letterboxed when the screen is wider */
  background: #000;
}
.player-next-up {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  max-width: 80%; padding: 12px 18px; border: 0; border-radius: 999px;
  background: var(--violet-btn); color: #FFFFFF;
  font: 600 14px/1.3 var(--sans); cursor: pointer;
  box-shadow: 0 8px 24px rgba(109, 74, 255, 0.45);
}
.player-info { padding: 16px 18px 18px; display: grid; gap: 8px; align-content: start; }
.player-head { display: flex; justify-content: space-between; align-items: center; }
.player-ep { font: 600 12px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-text); }
.player-close {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--surface-2); color: var(--text);
  font: 22px/1 var(--sans); cursor: pointer;
}
.player-close:hover { border-color: var(--link); }
.player-info h3 { margin: 0; font: 700 20px/1.25 var(--display); }
.player-info p { margin: 0; color: var(--muted); }
.player-src { font-weight: 600; font-size: 14.5px; }
.player-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 6px; }
.player-nav .btn { justify-content: center; padding-left: 12px; padding-right: 12px; cursor: pointer; }
.player-nav .btn:disabled { opacity: 0.4; cursor: default; border-color: var(--border); }

@media (max-width: 639px) {
  .player { max-width: none; height: 100dvh; margin: 0; border: 0; border-radius: 0; }
  .player-inner { height: 100%; display: flex; flex-direction: column; }
  .player-stage { flex: 1; min-height: 0; }
  .player-stage video { position: absolute; inset: 0; width: 100%; height: 100%; }
  .player-info { padding: 12px 16px calc(14px + env(safe-area-inset-bottom)); gap: 6px; }
  .player-info p { display: none; }
}

/* requirements */
.req-grid { display: grid; gap: 24px; }
.req-grid > div > p { color: var(--muted); margin-top: 14px; }
.req-grid > div > p code { color: var(--text); }
.reqs { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.reqs li {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 12px;
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
}
.reqs span { color: var(--muted); font-size: 14.5px; }
.install {
  margin: 32px auto 0;
  max-width: 560px;
  padding: 16px 18px;
  border-radius: 14px;
  background: #0A0E1A;
  border: 1px solid #242D4A;
  color: #E6E9F5;
  font: 14px/1.8 var(--mono);
  white-space: pre-wrap;
  word-break: break-word;
}
.install + .center { margin-top: 12px; }
.install + .center code { overflow-wrap: anywhere; }

/* footer */
.footer { padding: 32px 0 40px; border-top: 1px solid var(--border); }
.footer-inner { display: grid; gap: 14px; justify-items: start; }
.footer nav { display: flex; flex-wrap: wrap; gap: 16px; }
.footer nav a { color: var(--text); text-decoration: none; font-weight: 500; }
.footer nav a:hover { color: var(--link); }
.footer p { color: var(--muted); font-size: 14px; }

/* ── larger screens ───────────────────────────────────────────────────────── */
@media (min-width: 640px) {
  .hero h1 { font-size: 60px; }
  .features { grid-template-columns: 1fr 1fr; }
  .kinds { grid-template-columns: repeat(4, 1fr); }
  .tuts { grid-template-columns: repeat(3, 1fr); }
  .term-body { font-size: 14px; }
  .hero-visual { grid-template-columns: minmax(0, 1fr) auto; align-items: center; justify-items: stretch; }
}

@media (min-width: 760px) {
  .pipe-h { display: block !important; }
  .pipe-v { display: none !important; }
  .steps { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 760px) {
  .player-inner { grid-template-columns: auto 1fr; }
  .player-stage video { width: auto; height: min(84dvh, 760px); aspect-ratio: 9 / 16; }
  .player-info { display: flex; flex-direction: column; padding: 22px 24px; gap: 10px; }
  .player-nav { margin-top: auto; }
}

@media (min-width: 960px) {
  :root { --gutter: 32px; }
  .hero { padding: 80px 0 88px; }
  .hero h1 { font-size: 72px; }
  .section { padding: 88px 0; }
  .section h2 { font-size: 38px; }
  .features { grid-template-columns: repeat(4, 1fr); }
  .agent-grid { grid-template-columns: 1fr 1fr; align-items: center; gap: 56px; }
  .tuts { grid-template-columns: repeat(5, 1fr); }
  .req-grid { grid-template-columns: 1fr 1.1fr; align-items: center; gap: 56px; }
  .footer-inner { grid-template-columns: auto 1fr auto; align-items: center; justify-items: stretch; }
  .footer nav { justify-content: center; }
}

@media (min-width: 1180px) {
  .hero-grid { grid-template-columns: 1.05fr 1fr; align-items: center; gap: 48px; }
  .hero-visual { display: block; min-height: 480px; }
  .terminal { margin-top: 8px; }
  .phone { position: absolute; right: -8px; top: 96px; width: 216px; z-index: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .tut { transition: none; }
}