/* 90Twenty marketing site — self-contained, no external assets. */
:root {
  --ink: #0f172a;         /* slate-900 */
  --ink-soft: #475569;    /* slate-600 */
  --ink-faint: #94a3b8;   /* slate-400 */
  --paper: #ffffff;
  --wash: #f8fafc;        /* slate-50 */
  --line: #e2e8f0;        /* slate-200 */
  --accent: #f59e0b;      /* amber-500 — the 110% energy */
  --accent-deep: #b45309; /* amber-700 */
  --navy: #0b1220;        /* hero ground */
  --good: #059669;        /* emerald-600 */
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--ink); background: var(--paper); line-height: 1.6; }
img { max-width: 100%; }
a { color: inherit; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* --- Nav --- */
.nav { position: sticky; top: 0; z-index: 40; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; gap: 28px; height: 64px; }
.logo { font-size: 22px; font-weight: 800; letter-spacing: -0.5px; text-decoration: none; }
.logo .n { color: var(--accent-deep); }
.logo .badge { font-size: 10px; font-weight: 700; color: var(--accent-deep); background: #fef3c7; border-radius: 99px; padding: 2px 8px; vertical-align: middle; margin-left: 8px; letter-spacing: .5px; }
.nav-links { display: flex; gap: 20px; margin-left: auto; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--ink-soft); text-decoration: none; }
.nav-links a:hover { color: var(--ink); }
.btn { display: inline-block; border-radius: 8px; padding: 11px 20px; font-size: 15px; font-weight: 600; text-decoration: none; cursor: pointer; border: 0; }
.btn-primary { background: var(--accent); color: #1a1206; }
.btn-primary:hover { background: #fbbf24; }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--wash); }
.btn-onnavy { border-color: #334155; color: #e2e8f0; }
.btn-onnavy:hover { background: #1e293b; }
.nav .btn { padding: 8px 16px; font-size: 14px; }

/* --- Hero --- */
.hero { background: radial-gradient(1200px 500px at 70% -10%, #1e293b 0%, var(--navy) 55%); color: #e2e8f0; padding: 88px 0 72px; }
.kicker { font-size: 12px; font-weight: 700; letter-spacing: 2px; color: var(--accent); text-transform: uppercase; }
.hero h1 { font-size: clamp(34px, 5vw, 54px); line-height: 1.12; letter-spacing: -1px; color: #fff; margin: 14px 0 18px; max-width: 800px; }
.hero p.sub { font-size: 19px; color: #94a3b8; max-width: 680px; margin-bottom: 30px; }
.hero .ctas { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero .math { margin-top: 34px; font-size: 14px; color: #64748b; }
.hero .math b { color: var(--accent); }

/* --- Connector wall --- */
.section { padding: 72px 0; }
.section.alt { background: var(--wash); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section h2 { font-size: clamp(26px, 3.5vw, 36px); letter-spacing: -.5px; line-height: 1.15; margin-bottom: 10px; }
.section p.lead { font-size: 17px; color: var(--ink-soft); max-width: 720px; margin-bottom: 34px; }
.wall { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.chip { display: flex; align-items: center; justify-content: space-between; gap: 8px; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; font-weight: 600; font-size: 14px; background: var(--paper); }
.chip .tag { font-size: 9px; font-weight: 800; letter-spacing: 1px; border-radius: 99px; padding: 2px 7px; }
.tag.live { background: #d1fae5; color: #047857; }
.tag.via { background: #dbeafe; color: #1d4ed8; }
.tag.dev { background: #f1f5f9; color: #64748b; }
.chip.more { border-style: dashed; color: var(--ink-soft); font-weight: 500; justify-content: center; text-align: center; font-size: 13px; }
.wall-note { margin-top: 18px; font-size: 14px; color: var(--ink-soft); }
.wall-note b { color: var(--accent-deep); }

/* --- Feature pillars --- */
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 800px) { .grid2, .grid3 { grid-template-columns: 1fr; } }
.card { border: 1px solid var(--line); border-radius: 14px; padding: 24px; background: var(--paper); }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { font-size: 14.5px; color: var(--ink-soft); }
.card .emoji { font-size: 26px; display: block; margin-bottom: 10px; }
ul.checks { list-style: none; margin-top: 14px; }
ul.checks li { padding-left: 26px; position: relative; margin-bottom: 9px; font-size: 15px; color: var(--ink-soft); }
ul.checks li::before { content: "✓"; position: absolute; left: 0; color: var(--good); font-weight: 800; }
ul.checks li b { color: var(--ink); }

/* --- Stat band --- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 30px; }
@media (max-width: 800px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat { border-left: 3px solid var(--accent); padding-left: 14px; }
.stat .big { font-size: 26px; font-weight: 800; letter-spacing: -.5px; }
.stat .small { font-size: 13px; color: var(--ink-soft); }

/* --- Dark band --- */
.band { background: var(--navy); color: #cbd5e1; padding: 64px 0; }
.band h2 { color: #fff; }
.band .card { background: #101a2e; border-color: #24324a; }
.band .card h3 { color: #f1f5f9; }
.band .card p { color: #94a3b8; }

/* --- Steps (onboarding) --- */
.steps { counter-reset: step; margin-top: 26px; }
.step { display: flex; gap: 18px; padding: 18px 0; border-top: 1px solid var(--line); }
.step::before { counter-increment: step; content: counter(step); flex: 0 0 34px; height: 34px; border-radius: 99px; background: var(--ink); color: #fff; font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: 15px; }
.step h4 { font-size: 16px; }
.step p { font-size: 14.5px; color: var(--ink-soft); }

/* --- CTA / footer --- */
.cta-final { text-align: center; padding: 84px 0; }
.cta-final h2 { margin-bottom: 12px; }
.cta-final p { color: var(--ink-soft); margin-bottom: 26px; }
.footer { border-top: 1px solid var(--line); padding: 34px 0; font-size: 13.5px; color: var(--ink-faint); display: flex; flex-wrap: wrap; gap: 10px 30px; align-items: center; }
.footer .logo { font-size: 16px; }
.footer a { color: var(--ink-soft); text-decoration: none; }
.footer a:hover { color: var(--ink); }
.footer .spacer { flex: 1; }