/* AI Unpacked — channel site. Brand: navy→purple bg, cyan #5EE1FF → purple #B478FF gradient */
:root {
  --bg: #0a0f1e;
  --bg2: #131a33;
  --panel: #161e3d;
  --border: #263056;
  --text: #e8ecf8;
  --muted: #9aa5c9;
  --cyan: #5ee1ff;
  --purple: #b478ff;
  --grad: linear-gradient(90deg, #5ee1ff, #b478ff);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 70% -10%, #2a1b52 0%, transparent 60%),
              radial-gradient(900px 500px at -10% 30%, #0f2a4a 0%, transparent 55%),
              var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
}
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1020px; margin: 0 auto; padding: 0 20px; }

/* header */
header { border-bottom: 1px solid var(--border); background: rgba(10,15,30,.75); backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 10; }
.nav { display: flex; align-items: center; gap: 22px; padding: 14px 0; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--text); }
.logo:hover { text-decoration: none; }
.logo-mark { width: 34px; height: 34px; border-radius: 9px; background: var(--grad); display: grid; place-items: center; color: #0a0f1e; font-weight: 900; font-size: .95rem; }
.logo span.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav nav { margin-left: auto; display: flex; gap: 18px; }
.nav nav a { color: var(--muted); font-weight: 600; font-size: .95rem; }
.nav nav a:hover { color: var(--text); text-decoration: none; }
.btn { display: inline-block; padding: 11px 22px; border-radius: 10px; font-weight: 700; border: 1px solid transparent; }
.btn:hover { text-decoration: none; filter: brightness(1.1); }
.btn-sub { background: #ff0033; color: #fff; }
.btn-grad { background: var(--grad); color: #0a0f1e; }
.btn-ghost { border-color: var(--border); color: var(--text); background: rgba(255,255,255,.03); }

/* hero */
.hero { padding: 72px 0 56px; text-align: center; }
.hero .kicker { text-transform: uppercase; letter-spacing: .18em; font-size: .8rem; color: var(--cyan); font-weight: 700; }
.hero h1 { font-size: clamp(2.1rem, 5.5vw, 3.4rem); line-height: 1.15; margin: 14px 0 18px; }
.hero h1 .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { max-width: 640px; margin: 0 auto 28px; color: var(--muted); font-size: 1.08rem; }
.hero .cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* sections */
section { padding: 48px 0; }
.sec-head { margin-bottom: 26px; }
.sec-head h2 { font-size: 1.7rem; display: inline-block; }
.sec-head h2::after { content: ""; display: block; height: 3px; width: 60%; margin-top: 6px; border-radius: 2px; background: var(--grad); }
.sec-head p { color: var(--muted); margin-top: 8px; }

/* video cards */
.vid-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.vid-card { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; display: flex; flex-direction: column; }
.vid-thumb { aspect-ratio: 16/9; background: linear-gradient(135deg, #1b2447, #2a1b52); display: grid; place-items: center; position: relative; }
.vid-thumb .play { width: 58px; height: 58px; border-radius: 50%; background: var(--grad); display: grid; place-items: center; color: #0a0f1e; font-size: 1.4rem; }
.vid-thumb iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.vid-body { padding: 16px 18px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.vid-body h3 { font-size: 1.05rem; line-height: 1.4; }
.vid-body p { color: var(--muted); font-size: .93rem; flex: 1; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: .75rem; font-weight: 700; background: rgba(94,225,255,.12); color: var(--cyan); border: 1px solid rgba(94,225,255,.3); width: fit-content; }

/* tool cards */
.tool-list { display: grid; gap: 16px; }
.tool { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 20px 22px; display: grid; grid-template-columns: 46px 1fr auto; gap: 16px; align-items: center; }
.tool-ic { width: 46px; height: 46px; border-radius: 10px; background: #0e1530; border: 1px solid var(--border); display: grid; place-items: center; overflow: hidden; }
.tool-ic img { width: 30px; height: 30px; }
.tool h3 { font-size: 1.06rem; }
.tool .use { color: var(--purple); font-size: .82rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.tool p { color: var(--muted); font-size: .93rem; margin-top: 4px; }
.tool .btn { white-space: nowrap; }
@media (max-width: 640px) { .tool { grid-template-columns: 46px 1fr; } .tool .btn { grid-column: 1 / -1; text-align: center; } }

/* about strip */
.about { background: var(--bg2); border: 1px solid var(--border); border-radius: 16px; padding: 30px 32px; display: grid; gap: 8px; }
.about strong { color: var(--cyan); }

/* footer */
footer { border-top: 1px solid var(--border); padding: 34px 0 44px; margin-top: 40px; color: var(--muted); font-size: .88rem; }
footer .cols { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; margin-bottom: 18px; }
footer a { color: var(--muted); }
.disclosure { font-size: .8rem; opacity: .85; max-width: 720px; }