:root {
  --ground: #F5F6F8;
  --surface: #FFFFFF;
  --ink: #12192B;
  --ink-soft: #4A5368;
  --line: #DFE2E8;
  --deep: #1A2747;
  --glow: #E9A23B;
  --glow-soft: #FBEBD2;
  --display: 'Bricolage Grotesque', 'Segoe UI', system-ui, sans-serif;
  --body: 'Source Sans 3', 'Segoe UI', system-ui, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0E1322;
    --surface: #161D30;
    --ink: #EEF1F7;
    --ink-soft: #A8B0C2;
    --line: #283149;
    --deep: #0A0F1C;
    --glow: #F0B054;
    --glow-soft: #3A2E1B;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--body);
  font-size: 18px;
  line-height: 1.6;
}
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--glow); outline-offset: 3px; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* Header */
.top {
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px 0;
}
.brand {
  font-family: var(--display); font-weight: 700; font-size: 26px;
  letter-spacing: -0.02em; text-decoration: none;
  display: flex; align-items: center; gap: 10px;
}
.brand-dot {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--glow);
  box-shadow: 0 0 0 6px var(--glow-soft);
}
.top nav { display: flex; gap: 24px; font-size: 16px; }
.top nav a { text-decoration: none; color: var(--ink-soft); }
.top nav a:hover { color: var(--ink); }

/* Hero */
.hero { padding: 64px 0 72px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.eyebrow {
  font-size: 13px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-soft); margin: 0 0 16px;
}
h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(38px, 5.4vw, 60px); line-height: 1.04; letter-spacing: -0.03em;
  margin: 0 0 22px; text-wrap: balance;
}
h1 em { font-style: normal; background: linear-gradient(transparent 62%, var(--glow-soft) 62%); }
.lede { font-size: 20px; color: var(--ink-soft); max-width: 34ch; margin: 0 0 32px; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px; border-radius: 10px; font-weight: 600; font-size: 17px;
  text-decoration: none; border: 1px solid transparent;
}
.btn-primary { background: var(--deep); color: #fff; }
.btn-primary:hover { background: #24345E; }
.btn-ghost { border-color: var(--line); background: var(--surface); }

/* Chat mockup */
.chat {
  background: var(--surface); border: 1px solid var(--line); border-radius: 18px;
  padding: 20px; display: flex; flex-direction: column; gap: 10px;
  box-shadow: 0 24px 60px -30px rgba(18, 25, 43, 0.35);
}
.chat-head { display: flex; align-items: center; gap: 10px; padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 4px; }
.chat-avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--deep); display: grid; place-items: center; }
.chat-avatar span { width: 10px; height: 10px; border-radius: 50%; background: var(--glow); }
.chat-name { font-weight: 600; font-size: 15px; line-height: 1.2; }
.chat-status { font-size: 12px; color: var(--ink-soft); }
.msg { max-width: 82%; padding: 10px 14px; border-radius: 14px; font-size: 15px; line-height: 1.45; }
.msg.in { background: var(--ground); align-self: flex-start; border-bottom-left-radius: 4px; }
.msg.out { background: var(--glow-soft); align-self: flex-end; border-bottom-right-radius: 4px; }
.msg small { display: block; font-size: 11px; color: var(--ink-soft); margin-top: 4px; text-align: right; }

/* Sections */
section.block { padding: 72px 0; border-top: 1px solid var(--line); }
h2 {
  font-family: var(--display); font-weight: 700; font-size: clamp(28px, 3.6vw, 40px);
  letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 14px; text-wrap: balance;
}
.section-lede { color: var(--ink-soft); max-width: 58ch; margin: 0 0 40px; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 26px; }
.feature h3 { font-family: var(--display); font-size: 21px; margin: 0 0 8px; letter-spacing: -0.01em; }
.feature p { margin: 0; color: var(--ink-soft); font-size: 16px; }
.feature-mark { width: 36px; height: 4px; border-radius: 2px; background: var(--glow); margin-bottom: 18px; }

.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.steps li { counter-increment: step; }
.steps li::before {
  content: counter(step);
  font-family: var(--display); font-weight: 700; font-size: 15px;
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  border: 1.5px solid var(--ink); margin-bottom: 14px;
}
.steps h3 { font-family: var(--display); font-size: 19px; margin: 0 0 6px; }
.steps p { margin: 0; color: var(--ink-soft); font-size: 16px; }

.contact { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: start; }
.contact-card { background: var(--deep); color: #fff; border-radius: 16px; padding: 30px; }
.contact-card dt { font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.7; margin-top: 16px; }
.contact-card dt:first-child { margin-top: 0; }
.contact-card dd { margin: 4px 0 0; font-size: 18px; }
.contact-card a { color: #fff; }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 36px 0 48px; font-size: 15px; color: var(--ink-soft); }
.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 24px; }
.foot-legal p { margin: 0 0 4px; }
.foot-legal strong { color: var(--ink); }
.foot-links { display: flex; gap: 20px; }

/* Legal pages */
.legal { max-width: 760px; padding: 40px 0 72px; }
.legal h1 { font-size: clamp(32px, 4vw, 44px); }
.legal h2 { font-size: 24px; margin-top: 40px; }
.legal p, .legal li { color: var(--ink-soft); }
.legal .updated { font-size: 15px; }

@media (max-width: 860px) {
  .hero, .contact { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .top nav { display: none; }
}
@media (max-width: 520px) {
  .steps { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }