:root {
  --bg: #f2f3f0;
  --sand: #f3ebe2;
  --ink: #111111;
  --muted: #666666;
  --line: #cbccc9;
  --accent: #d4916e;
  --dark: #101113;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Geist", system-ui, sans-serif;
}

.container {
  width: min(1248px, calc(100% - 64px));
  margin: 0 auto;
}

section { padding: 88px 0; }
.section-light { background: var(--sand); }
.section-muted { background: var(--bg); }
.section-dark { background: #1a1a1a; }
.light { color: #fff; }
.muted { color: #d6d6d6; }
.muted-text { color: var(--muted); }

.eyebrow {
  margin: 0 0 12px;
  font: 500 13px/1 "Geist Mono", monospace;
  letter-spacing: 0.08em;
  color: #3d3d3d;
  text-transform: uppercase;
}
.eyebrow.light { color: #fff; }
.eyebrow.dim { color: #8c96a8; }

h1, h2 {
  margin: 0;
  font-family: "Newsreader", serif;
  font-weight: 500;
  line-height: 1.06;
}
h1 { font-size: clamp(42px, 8vw, 74px); }
h2 { font-size: clamp(36px, 6vw, 56px); }
h3, h4 { margin: 0; font-weight: 500; }

.lead {
  margin: 18px 0 0;
  max-width: 860px;
  font-size: clamp(18px, 2.5vw, 20px);
  line-height: 1.45;
  color: #3d3d3d;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 52px;
}
.brand {
  color: #1a1a1a;
  text-decoration: none;
  font: 500 30px/1 "Newsreader", serif;
}

.hero-row,
.two-col,
.two-grid,
.three-grid,
.chip-row {
  display: grid;
  gap: 24px;
}
.hero-row { grid-template-columns: 1.2fr 470px; align-items: center; gap: 72px; }
.two-col { grid-template-columns: 1fr 500px; gap: 72px; align-items: start; }
.two-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.three-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 28px 0; }
.chip-row { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.btn {
  display: inline-block;
  text-decoration: none;
  border-radius: 999px;
  padding: 12px 20px;
  font-weight: 500;
  font-size: 15px;
}
.btn-dark { background: #1a1a1a; color: #f3ebe2; }
.btn-accent { background: var(--accent); color: #1a1a1a; border-radius: 4px; }

.chat-card {
  background: #fff;
  border: 1px solid #c5beb6;
  border-radius: 24px;
  padding: 18px;
  min-height: 620px;
  box-shadow: 0 1px 3px #00000014, 0 4px 12px #0000000f;
}
.chat-top {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  margin-bottom: 12px;
}
.mono { font-family: "IBM Plex Mono", monospace; font-size: 12px; color: #3d3d3d; }

.bubble {
  width: fit-content;
  max-width: 100%;
  padding: 10px 14px;
  border-radius: 16px;
  margin-bottom: 10px;
  font-size: 15px;
  line-height: 1.35;
}
.bubble-wrap.right,
.msg.right { display: flex; justify-content: flex-end; }
.bubble-a, .bubble-d { background: #dff2ff; border-bottom-left-radius: 4px; }
.bubble-b { background: #ececec; border-bottom-right-radius: 4px; }
.bubble-c, .bubble-e { background: #e7f5ea; border-bottom-left-radius: 4px; }

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
}
.light-list > div {
  display: flex;
  justify-content: space-between;
  background: #f7f3ee;
  border-radius: 10px;
  padding: 10px 12px;
}
.light-list { display: grid; gap: 12px; }

.dark-chat {
  background: #242424;
  border-color: #3d3d3d;
  border-radius: 16px;
}
.dark-chat .bubble { color: #fff; }
.dark-chat .bubble-e { color: #1a1a1a; background: var(--accent); }

.actions {
  background: linear-gradient(180deg, #0a0b0f 0%, #12141a 100%);
  color: #f6f8ff;
}
.action-stack { display: grid; gap: 20px; margin-top: 28px; }
.action-card {
  background: #151820;
  border: 1px solid #2b3140;
  border-radius: 18px;
  padding: 18px;
}
.action-card h4 {
  color: #8c96a8;
  font: 600 12px/1 "JetBrains Mono", monospace;
  letter-spacing: .08em;
  margin-bottom: 12px;
}
.msg {
  display: inline-block;
  max-width: 440px;
  background: #293243;
  color: #e6eaf4;
  padding: 10px 12px;
  border-radius: 14px;
  margin: 8px 0;
  font-size: 14px;
  line-height: 1.35;
}
.proc {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #1c2230;
  border: 1px solid #313a4e;
  border-radius: 999px;
  color: #aab3c3;
  font: 400 12px/1.2 "JetBrains Mono", monospace;
  padding: 8px 10px;
  margin: 8px 0;
}
.proc::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ff8400;
}

.chip {
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 14px 18px;
  background: #fff;
}

.center { text-align: center; }
.final-cta h2 { font-size: clamp(42px, 7vw, 72px); }

@media (max-width: 1100px) {
  .hero-row,
  .two-col,
  .three-grid,
  .two-grid,
  .chip-row {
    grid-template-columns: 1fr;
  }
  .chat-card { min-height: auto; }
}

@media (max-width: 640px) {
  .container { width: calc(100% - 32px); }
  section { padding: 64px 0; }
  .topbar { margin-bottom: 36px; }
  .btn { width: fit-content; }
}