@import url('https://fonts.googleapis.com/css2?family=Azeret+Mono:wght@400;500;600&family=DM+Sans:wght@400;500;600;700&display=swap');

:root {
  --ink: #e8f0ed;
  --muted: #8b9ba7;
  --night: #08111d;
  --panel: #0d1c2a;
  --panel-2: #102536;
  --line: rgba(157, 191, 202, .16);
  --mint: #74f6c5;
  --coral: #ff8b6a;
  --yellow: #f7d37b;
  --shadow: 0 24px 70px rgba(0, 0, 0, .28);
  --sans: 'DM Sans', 'Avenir Next', system-ui, sans-serif;
  --mono: 'Azeret Mono', 'SFMono-Regular', Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 80% -10%, rgba(116, 246, 197, .13), transparent 31rem),
    radial-gradient(circle at -5% 32%, rgba(255, 139, 106, .1), transparent 28rem),
    var(--night);
  font-family: var(--sans);
  line-height: 1.6;
}

a { color: inherit; }
.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.topbar { display: flex; justify-content: space-between; align-items: center; padding: 24px 0; }
.brand { display: inline-flex; gap: 12px; align-items: center; text-decoration: none; font-weight: 700; letter-spacing: -.02em; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid rgba(116,246,197,.55); color: var(--mint); border-radius: 9px; font: 600 13px var(--mono); box-shadow: 0 0 24px rgba(116,246,197,.15); }
.brand small { display: block; color: var(--muted); font: 11px var(--mono); font-weight: 400; letter-spacing: .08em; text-transform: uppercase; }
.nav { display: flex; gap: 20px; color: var(--muted); font-size: 14px; }
.nav a { text-decoration: none; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--mint); }

.hero { display: grid; grid-template-columns: 1.08fr .92fr; gap: 48px; align-items: center; padding: 72px 0 64px; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--mint); font: 500 11px var(--mono); letter-spacing: .13em; text-transform: uppercase; }
.eyebrow::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 16px var(--coral); }
h1, h2, h3 { margin: 0; letter-spacing: -.045em; line-height: 1.06; }
h1 { max-width: 730px; margin-top: 18px; font-size: clamp(46px, 7vw, 88px); font-weight: 600; }
h1 em { color: var(--mint); font-style: normal; }
.lede { max-width: 620px; margin: 24px 0 0; color: #b4c2c8; font-size: 18px; }
.hero-note { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 28px; color: var(--muted); font: 12px var(--mono); }
.hero-note span::before { content: '↳'; margin-right: 8px; color: var(--coral); }

.player-card { position: relative; border: 1px solid rgba(116,246,197,.25); background: linear-gradient(145deg, rgba(16,37,54,.96), rgba(8,17,29,.96)); box-shadow: var(--shadow); border-radius: 18px; overflow: hidden; }
.player-card::before { content: ''; position: absolute; inset: 0; pointer-events: none; background-image: linear-gradient(rgba(116,246,197,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(116,246,197,.035) 1px, transparent 1px); background-size: 24px 24px; mask-image: linear-gradient(to bottom, #000, transparent); }
.player-head { position: relative; display: flex; justify-content: space-between; align-items: center; padding: 15px 18px; border-bottom: 1px solid var(--line); font: 11px var(--mono); color: var(--muted); }
.live-dot { color: var(--mint); }
.live-dot::before { content: ''; display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 12px var(--mint); }
.screen { position: relative; display: grid; place-items: center; min-height: 242px; margin: 20px; border-radius: 12px; background: #050b12; border: 1px solid rgba(157,191,202,.12); overflow: hidden; }
.screen video { width: 100%; height: 100%; min-height: 242px; object-fit: contain; background: #050b12; }
.screen-empty { position: absolute; text-align: center; color: var(--muted); pointer-events: none; }
.screen-empty strong { display: block; margin-bottom: 7px; color: var(--ink); font-size: 17px; }
.screen-empty span { font: 11px var(--mono); }
.player-controls { position: relative; display: grid; grid-template-columns: 1fr auto; gap: 10px; padding: 0 20px 20px; }
.url-form { display: flex; gap: 8px; }
input, textarea, button { font: inherit; }
input[type="url"], textarea { width: 100%; color: var(--ink); background: rgba(5,11,18,.72); border: 1px solid var(--line); border-radius: 9px; outline: none; }
input[type="url"] { height: 42px; padding: 0 13px; font: 12px var(--mono); }
input:focus, textarea:focus { border-color: var(--mint); box-shadow: 0 0 0 3px rgba(116,246,197,.1); }
button { border: 0; cursor: pointer; }
.btn { min-height: 42px; padding: 0 16px; border-radius: 9px; font-weight: 700; white-space: nowrap; }
.btn-primary { color: #06121a; background: var(--mint); }
.btn-primary:hover { background: #a2ffda; transform: translateY(-1px); }
.btn-ghost { color: var(--ink); background: rgba(157,191,202,.1); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--mint); }
.upload-label { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 13px; border: 1px dashed rgba(116,246,197,.4); border-radius: 9px; color: var(--mint); font: 11px var(--mono); cursor: pointer; }
.upload-label input { display: none; }
.status { min-height: 25px; padding: 0 20px 16px; color: var(--muted); font: 11px var(--mono); }
.status[data-tone="error"] { color: var(--coral); }
.status[data-tone="success"] { color: var(--mint); }

.section { padding: 72px 0; border-top: 1px solid var(--line); }
.section-heading { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 28px; }
.section-heading h2 { font-size: clamp(30px, 4vw, 48px); }
.section-heading p { max-width: 420px; margin: 0; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.feature { padding: 23px; border: 1px solid var(--line); border-radius: 14px; background: rgba(13,28,42,.62); }
.feature-index { color: var(--coral); font: 11px var(--mono); }
.feature h3 { margin: 28px 0 11px; font-size: 21px; letter-spacing: -.03em; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; }

.workspace { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 18px; align-items: start; }
.workspace-main, .workspace-aside { border: 1px solid var(--line); border-radius: 14px; background: rgba(13,28,42,.65); overflow: hidden; }
.workspace-main { min-height: 390px; }
.panel-bar { display: flex; justify-content: space-between; align-items: center; padding: 14px 17px; border-bottom: 1px solid var(--line); font: 11px var(--mono); color: var(--muted); }
.channel-search { max-width: 190px; height: 32px !important; }
.channel-list { max-height: 470px; overflow: auto; }
.channel { display: flex; justify-content: space-between; align-items: center; gap: 15px; width: 100%; padding: 14px 17px; color: var(--ink); background: transparent; text-align: left; border-bottom: 1px solid rgba(157,191,202,.08); }
.channel:hover, .channel[aria-current="true"] { background: rgba(116,246,197,.08); }
.channel strong { display: block; font-size: 14px; font-weight: 500; }
.channel small { color: var(--muted); font: 10px var(--mono); }
.channel-badge { color: var(--yellow); font: 10px var(--mono); }
.empty-list { padding: 28px 17px; color: var(--muted); font-size: 14px; }
.tips { padding: 18px; }
.tips h3 { margin-bottom: 15px; font-size: 18px; }
.tips ol { padding-left: 20px; margin: 0; color: var(--muted); font-size: 13px; }
.tips li + li { margin-top: 12px; }
.tips code { color: var(--mint); font-family: var(--mono); }

.editor { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: start; }
textarea { min-height: 155px; padding: 15px; resize: vertical; font: 12px/1.65 var(--mono); }
.editor-actions { display: grid; gap: 8px; }
.prose { max-width: 820px; color: #b7c5ca; }
.prose h2 { margin: 34px 0 12px; font-size: 28px; color: var(--ink); }
.prose h3 { margin: 25px 0 8px; font-size: 20px; color: var(--ink); }
.prose p, .prose li { font-size: 16px; }
.prose ul { padding-left: 22px; }
.prose a { color: var(--mint); }
.faq { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
details { padding: 17px 18px; border: 1px solid var(--line); border-radius: 11px; background: rgba(13,28,42,.6); }
summary { cursor: pointer; font-weight: 600; }
details p { margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.footer { display: flex; justify-content: space-between; gap: 20px; padding: 28px 0 45px; color: var(--muted); border-top: 1px solid var(--line); font: 11px var(--mono); }
.footer nav { display: flex; gap: 16px; }

@media (max-width: 850px) {
  .hero, .workspace { grid-template-columns: 1fr; }
  .hero { padding-top: 42px; }
  .feature-grid, .faq { grid-template-columns: 1fr; }
  .section-heading { display: block; }
  .section-heading p { margin-top: 12px; }
}
@media (max-width: 600px) {
  .shell { width: min(100% - 28px, 1180px); }
  .topbar { align-items: flex-start; }
  .nav { gap: 10px; font-size: 12px; }
  h1 { font-size: clamp(42px, 15vw, 68px); }
  .url-form, .editor { grid-template-columns: 1fr; display: grid; }
  .player-controls { grid-template-columns: 1fr; }
  .upload-label { width: 100%; }
  .footer { display: block; }
  .footer nav { margin-top: 14px; }
}