/* ============ Tokens ============ */
:root {
  --bg: #07080f;
  --bg-2: #0b0d18;
  --panel: #10131f;
  --panel-2: #141826;
  --line: rgba(255,255,255,.09);
  --line-strong: rgba(255,255,255,.16);
  --ink: #f4f6fb;
  --ink-soft: #aab2c8;
  --ink-faint: #7c84a0;

  --teal: #00cfc8;
  --blue: #009cdf;
  --purple: #5e4db2;
  --accent: #5b8cff;
  --grad: linear-gradient(120deg, #00cfc8 0%, #009cdf 45%, #6b6bff 100%);

  --radius: 18px;
  --radius-sm: 12px;
  --maxw: 1160px;
  --shadow: 0 1px 0 rgba(255,255,255,.04) inset, 0 20px 60px rgba(0,0,0,.5);
  --glow: 0 0 0 1px rgba(91,140,255,.25), 0 20px 60px rgba(0,156,223,.18);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 800px; }
.center { text-align: center; }
.maxw-body { max-width: 760px; margin-left: auto; margin-right: auto; }

/* ============ Decorative background ============ */
.bg-grid {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 35%, transparent 75%);
}
.bg-orb { position: fixed; z-index: -3; border-radius: 50%; filter: blur(90px); opacity: .5; pointer-events: none; }
.orb-1 { width: 620px; height: 620px; top: -220px; left: 50%; transform: translateX(-50%); background: radial-gradient(circle, rgba(0,156,223,.55), transparent 65%); }
.orb-2 { width: 520px; height: 520px; top: 280px; right: -180px; background: radial-gradient(circle, rgba(94,77,178,.5), transparent 65%); }

/* ============ Typography ============ */
h1 { font-family: 'Space Grotesk', 'Inter', sans-serif; font-size: clamp(2.6rem, 6vw, 4.6rem); line-height: 1.03; font-weight: 700; letter-spacing: -0.03em; }
h2 { font-family: 'Space Grotesk', 'Inter', sans-serif; font-size: clamp(1.8rem, 3.6vw, 2.8rem); line-height: 1.12; font-weight: 600; letter-spacing: -0.02em; margin-bottom: 16px; }
h3 { font-size: 1.18rem; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 10px; }
h4 { font-size: .82rem; font-weight: 600; letter-spacing: .04em; color: var(--ink); margin-bottom: 16px; }

.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

.eyebrow {
  display: inline-block; font-size: .76rem; font-weight: 600; letter-spacing: .16em;
  text-transform: uppercase; color: var(--teal); margin-bottom: 16px;
}
.eyebrow.light { color: #bfe8ff; }

.lead { font-size: clamp(1.05rem, 1.5vw, 1.28rem); color: var(--ink-soft); max-width: 680px; margin: 24px auto 0; }
.section-lead { font-size: 1.12rem; color: var(--ink-soft); max-width: 720px; }
.section-lead.center { margin-left: auto; margin-right: auto; }
.section-lead.light { color: #cdd6ee; }
.section-body { font-size: 1.04rem; color: var(--ink-soft); margin-top: 16px; }
.section-body em { color: var(--ink); font-style: normal; border-bottom: 1px dashed rgba(255,255,255,.25); }

/* ============ Buttons ============ */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  font-weight: 600; font-size: .96rem; padding: 12px 22px; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, box-shadow .25s ease, background .2s, border-color .2s;
}
.btn-sm { padding: 9px 18px; font-size: .9rem; }
.btn-lg { padding: 15px 30px; font-size: 1.02rem; }
.btn-primary { background: var(--grad); color: #03121c; box-shadow: 0 10px 30px rgba(0,156,223,.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(0,156,223,.5); }
.btn-ghost { background: rgba(255,255,255,.04); color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--accent); transform: translateY(-2px); background: rgba(255,255,255,.07); }
.btn .arrow { transition: transform .2s; }
.btn-ghost:hover .arrow { transform: translateX(4px); }

.link-arrow { display: inline-flex; align-items: center; gap: 8px; margin-top: 22px; color: var(--teal); font-weight: 600; font-size: .96rem; }
.link-arrow span { transition: transform .2s; }
.link-arrow:hover span { transform: translateX(4px); }

/* ============ Nav ============ */
.nav { position: sticky; top: 0; z-index: 60; transition: background .25s, border-color .25s, backdrop-filter .25s; border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(7,8,15,.72); backdrop-filter: saturate(160%) blur(16px); border-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand-mark { width: 32px; height: 32px; object-fit: contain; }
.brand-name { font-family: 'Space Grotesk', sans-serif; font-size: 1.15rem; letter-spacing: -0.02em; }
.nav-links { display: flex; gap: 30px; }
.nav-links a { font-size: .94rem; color: var(--ink-soft); font-weight: 500; transition: color .15s; }
.nav-links a:hover { color: var(--ink); }
.nav-actions { display: flex; align-items: center; gap: 20px; }
.nav-cta-link { font-size: .94rem; color: var(--ink-soft); font-weight: 500; transition: color .15s; }
.nav-cta-link:hover { color: var(--ink); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: .25s; }

/* ============ Hero ============ */
.hero { position: relative; text-align: center; padding: 84px 0 70px; }
.hero-inner { display: flex; flex-direction: column; align-items: center; }
.badge {
  display: inline-flex; align-items: center; gap: 9px; padding: 7px 8px 7px 14px;
  border-radius: 999px; border: 1px solid var(--line-strong); background: rgba(255,255,255,.04);
  font-size: .84rem; color: var(--ink-soft); margin-bottom: 28px; transition: border-color .2s, color .2s;
}
.badge:hover { border-color: var(--accent); color: var(--ink); }
.badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 10px var(--teal); }
.badge-arrow { background: rgba(255,255,255,.08); border-radius: 999px; padding: 1px 8px; }
.hero-cta { display: flex; gap: 14px; margin-top: 36px; flex-wrap: wrap; justify-content: center; }
.trust-line { font-size: .92rem; color: var(--ink-faint); margin: 26px auto 0; max-width: 540px; }

/* Product window */
.hero-window {
  width: 100%; max-width: 720px; margin: 64px auto 0; text-align: left;
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow), var(--glow); overflow: hidden;
}
.window-bar { display: flex; align-items: center; gap: 8px; padding: 13px 18px; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.02); }
.wdot { width: 11px; height: 11px; border-radius: 50%; background: rgba(255,255,255,.16); }
.window-title { display: flex; align-items: center; gap: 8px; margin-left: 10px; font-size: .85rem; font-weight: 600; color: var(--ink); }
.window-logo { width: 16px; height: 16px; }
.window-pill { margin-left: auto; font-size: .72rem; color: var(--ink-faint); border: 1px solid var(--line); padding: 4px 10px; border-radius: 999px; }
.window-body { padding: 22px; }
.chat { display: flex; flex-direction: column; gap: 14px; }
.bubble { padding: 13px 16px; border-radius: 14px; font-size: .95rem; }
.bubble-user { align-self: flex-end; max-width: 80%; background: var(--grad); color: #04141d; font-weight: 500; border-bottom-right-radius: 4px; }
.bubble-ai { align-self: flex-start; max-width: 92%; background: var(--panel-2); border: 1px solid var(--line); color: var(--ink-soft); border-bottom-left-radius: 4px; }
.bubble-ai strong { color: var(--ink); }
.bubble-ai .up { color: var(--teal); }
.trace { display: flex; flex-direction: column; gap: 7px; padding: 4px 2px; }
.trace-step { font-size: .82rem; color: var(--ink-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; display: flex; align-items: center; gap: 8px; }
.trace-step .ti { color: var(--blue); }
.trace-step code { background: rgba(0,156,223,.14); color: #6fd0ff; padding: 1px 7px; border-radius: 6px; font-size: .8rem; }
.tag-approve { background: rgba(94,77,178,.22); color: #bcb0ff; padding: 1px 8px; border-radius: 999px; font-size: .7rem; font-family: 'Inter'; }
.mini-chart { display: flex; align-items: flex-end; gap: 6px; height: 56px; margin-top: 14px; }
.mini-chart span { flex: 1; background: rgba(255,255,255,.14); border-radius: 4px 4px 0 0; }
.mini-chart .hot { background: var(--grad); }

/* ============ Strip ============ */
.strip { padding: 40px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); opacity: 0; transform: translateY(14px); transition: .6s; }
.strip.in { opacity: 1; transform: none; }
.strip-label { text-align: center; font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 18px; }
.strip-items { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 14px; font-family: 'Space Grotesk', sans-serif; font-weight: 500; color: var(--ink-soft); font-size: 1.02rem; }
.strip-items .sep { color: rgba(255,255,255,.2); }

/* ============ Sections ============ */
.section { padding: 92px 0; opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.section.in, .cta-section.in { opacity: 1; transform: none; }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; }

/* Problem */
.problem-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 44px 0 36px; }
.problem-item { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 24px 22px; display: flex; flex-direction: column; gap: 6px; transition: border-color .2s, transform .2s; }
.problem-item:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.pi-icon { font-size: 1.4rem; margin-bottom: 8px; }
.problem-item strong { color: var(--ink); font-size: 1.02rem; }
.problem-item span { color: var(--ink-faint); font-size: .94rem; }

/* Split */
.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 60px; align-items: center; }
.check-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.check-list li { position: relative; padding: 16px 18px 16px 50px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--ink-soft); font-size: 1rem; transition: border-color .2s; }
.check-list li:hover { border-color: var(--line-strong); }
.check-list li::before {
  content: "✓"; position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  width: 22px; height: 22px; border-radius: 7px; background: rgba(0,207,200,.16); color: var(--teal);
  display: grid; place-items: center; font-size: .8rem; font-weight: 700;
}

/* Cards */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.card {
  position: relative; background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 32px;
  transition: transform .2s, border-color .2s, box-shadow .2s; overflow: hidden;
}
.card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 2px; background: var(--grad); opacity: 0; transition: opacity .25s; }
.card:hover { transform: translateY(-5px); border-color: var(--line-strong); box-shadow: 0 24px 60px rgba(0,0,0,.45); }
.card:hover::before { opacity: 1; }
.card-icon { width: 50px; height: 50px; border-radius: 13px; display: grid; place-items: center; font-size: 1.5rem; margin-bottom: 18px; background: rgba(255,255,255,.05); border: 1px solid var(--line); }
.card p { color: var(--ink-soft); font-size: .98rem; }
.mini-list { list-style: none; margin-top: 18px; display: flex; flex-direction: column; gap: 9px; border-top: 1px solid var(--line); padding-top: 16px; }
.mini-list li { position: relative; padding-left: 22px; font-size: .9rem; color: var(--ink-faint); }
.mini-list li::before { content: "→"; position: absolute; left: 0; color: var(--blue); font-weight: 700; }

/* Features */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; transition: border-color .2s, transform .2s; }
.feature:hover { border-color: var(--line-strong); transform: translateY(-4px); }
.feature-ic { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 1.3rem; margin-bottom: 16px; background: var(--grad); color: #04141d; }
.feature p { color: var(--ink-soft); font-size: .96rem; }
.feature-result { margin-top: 14px; font-size: .9rem; color: var(--ink); }
.feature-result span { display: inline-block; font-size: .68rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--teal); margin-right: 6px; }

/* Steps */
.steps { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step-line { position: absolute; top: 54px; left: 12%; right: 12%; height: 1px; background: linear-gradient(90deg, transparent, var(--line-strong), transparent); z-index: 0; }
.step-card { position: relative; z-index: 1; padding: 34px 28px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(180deg, var(--panel), var(--bg-2)); transition: border-color .2s, transform .2s; }
.step-card:hover { border-color: var(--line-strong); transform: translateY(-4px); }
.step-num { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; background: var(--grad); color: #04141d; font-family: 'Space Grotesk'; font-weight: 700; font-size: 1.25rem; margin-bottom: 20px; }
.step-card p { color: var(--ink-soft); font-size: .98rem; }

/* Trust */
.trust-wrap { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; background: linear-gradient(135deg, rgba(0,156,223,.08), rgba(94,77,178,.08)); border: 1px solid var(--line); border-radius: 24px; padding: 48px; }
.trust-list { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.trust-list li { position: relative; padding: 14px 16px 14px 44px; background: rgba(7,8,15,.5); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--ink-soft); font-size: .94rem; }
.trust-list li::before { content: "✓"; position: absolute; left: 14px; top: 14px; width: 20px; height: 20px; border-radius: 6px; background: rgba(0,207,200,.16); color: var(--teal); display: grid; place-items: center; font-size: .72rem; font-weight: 700; }

/* Who */
.who-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.who-item { padding: 26px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); color: var(--ink-soft); font-size: .98rem; transition: border-color .2s, transform .2s; }
.who-item:hover { border-color: var(--line-strong); transform: translateY(-3px); }

/* CTA */
.cta-section { padding: 40px 0 100px; opacity: 0; transform: translateY(20px); transition: .7s; }
.cta-card { position: relative; text-align: center; border-radius: 28px; padding: 72px 32px; overflow: hidden;
  background: linear-gradient(135deg, rgba(0,207,200,.12), rgba(0,156,223,.12) 45%, rgba(94,77,178,.16));
  border: 1px solid var(--line-strong); }
.cta-card::after { content: ""; position: absolute; width: 500px; height: 500px; border-radius: 50%; top: -260px; left: 50%; transform: translateX(-50%); background: radial-gradient(circle, rgba(0,156,223,.4), transparent 65%); filter: blur(40px); z-index: 0; }
.cta-card > * { position: relative; z-index: 1; }
.cta-card .btn { margin-top: 10px; }

/* Footer */
.footer { background: var(--bg-2); border-top: 1px solid var(--line); padding: 64px 0 28px; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 2fr; gap: 50px; padding-bottom: 40px; border-bottom: 1px solid var(--line); }
.footer-brand .brand { margin-bottom: 14px; }
.footer-brand p { color: var(--ink-faint); font-size: .94rem; max-width: 260px; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.footer-col { display: flex; flex-direction: column; gap: 11px; }
.footer-col a { color: var(--ink-soft); font-size: .92rem; transition: color .15s; }
.footer-col a:hover { color: var(--ink); }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 22px; font-size: .86rem; color: var(--ink-faint); flex-wrap: wrap; gap: 10px; }
.footer-bottom a:hover { color: var(--ink); }

/* ============ Responsive ============ */
@media (max-width: 900px) {
  .nav-links, .nav-actions { display: none; }
  .nav-toggle { display: flex; }
  body.menu-open .nav-links {
    display: flex; flex-direction: column; gap: 18px; position: absolute; top: 70px; left: 0; right: 0;
    background: rgba(7,8,15,.97); backdrop-filter: blur(16px); padding: 24px; border-bottom: 1px solid var(--line);
  }
  body.menu-open .nav-actions { display: flex; flex-direction: column; align-items: stretch; gap: 14px; position: absolute; top: 70px; left: 0; right: 0; padding: 0 24px 24px; background: rgba(7,8,15,.97); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); margin-top: 196px; }
  body.menu-open .nav-cta-link { text-align: center; }
  .split, .cards, .feature-grid, .steps, .who-grid, .trust-wrap, .trust-list, .problem-grid, .footer-inner { grid-template-columns: 1fr; }
  .problem-grid { grid-template-columns: 1fr 1fr; }
  .trust-list { grid-template-columns: 1fr 1fr; }
  .step-line { display: none; }
  .trust-wrap { padding: 32px; gap: 28px; }
  .section { padding: 64px 0; }
  .hero { padding: 56px 0 48px; }
  .footer-cols { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 560px) {
  .problem-grid, .trust-list, .footer-cols { grid-template-columns: 1fr; }
  .strip-items { font-size: .9rem; gap: 10px; }
  .cta-card { padding: 48px 22px; }
}