:root {
  --bg: #07111f;
  --panel: #0f1e33;
  --panel-2: #132945;
  --text: #eef5ff;
  --muted: #a9b8cc;
  --accent: #8fd8ff;
  --accent-2: #9cffc7;
  --line: rgba(255,255,255,0.12);
  --warning: #ffd166;
  --danger: #ff7b7b;
  --shadow: 0 24px 70px rgba(0,0,0,0.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, rgba(67, 149, 255, 0.22), transparent 36%), var(--bg);
  color: var(--text);
}

.hero {
  min-height: 72vh;
  display: grid;
  place-items: center;
  padding: 72px 24px;
  background: linear-gradient(135deg, rgba(12, 35, 67, 0.9), rgba(7, 17, 31, 0.96));
  border-bottom: 1px solid var(--line);
}
.hero-content { max-width: 980px; text-align: center; }
.eyebrow {
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 800;
  font-size: 0.78rem;
  margin: 0 0 12px;
}
h1 {
  font-size: clamp(2.5rem, 6vw, 5.6rem);
  line-height: 0.92;
  margin: 0 0 22px;
  letter-spacing: -0.06em;
}
.subtitle {
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  max-width: 860px;
  margin: 0 auto 16px;
}
.hero-note { max-width: 800px; margin: 0 auto 30px; color: var(--accent); }
.hero-actions, .section-heading { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 12px 18px;
  color: var(--text);
  text-decoration: none;
  background: rgba(255,255,255,0.08);
  cursor: pointer;
  font-weight: 800;
  transition: transform 0.2s ease, background 0.2s ease;
}
.button:hover { transform: translateY(-2px); background: rgba(255,255,255,0.14); }
.button.primary { background: linear-gradient(135deg, #68c8ff, #85ffc1); color: #03111f; border: none; }
.button.secondary { color: var(--accent); }
.hero-actions, .button-row { flex-direction: row; justify-content: center; flex-wrap: wrap; display: flex; gap: 10px; }

.section { max-width: 1180px; margin: 0 auto; padding: 76px 24px; }
.intro { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr); gap: 24px; align-items: center; }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); letter-spacing: -0.045em; margin: 0 0 14px; }
p { color: var(--muted); line-height: 1.65; }
.insight-card, .strategy-card, .demo-stage, .control-panel, .scenario-summary, .guided-card, .objection-output, .mode-card, .privacy-card, .brief-panel {
  background: linear-gradient(180deg, rgba(255,255,255,0.075), rgba(255,255,255,0.035));
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}
.insight-card { padding: 26px; }
.insight-card strong { font-size: 1.1rem; }
.compact-heading { max-width: 840px; margin: 0 auto 24px; text-align: center; }

.control-panel {
  padding: 22px;
  display: grid;
  grid-template-columns: 1.3fr repeat(3, 1fr) auto;
  gap: 16px;
  align-items: end;
}
.control-panel label { display: grid; gap: 8px; color: var(--muted); font-weight: 800; font-size: 0.9rem; }
select, input[type="range"] { width: 100%; }
select {
  background: #0b1b30;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
}

.scenario-grid, .objection-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 24px 0;
}
.scenario-card, .objection-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255,255,255,0.055);
  color: var(--text);
  padding: 18px;
  text-align: left;
  cursor: pointer;
}
.scenario-card.active, .objection-card.active {
  background: linear-gradient(135deg, rgba(104, 200, 255, 0.28), rgba(133, 255, 193, 0.18));
  border-color: rgba(143, 216, 255, 0.6);
}
.scenario-card .icon { font-size: 2rem; display: block; margin-bottom: 8px; }
.scenario-card strong { display: block; font-size: 1.1rem; margin-bottom: 6px; }
.scenario-card small { color: var(--muted); line-height: 1.5; }
.scenario-summary { padding: 20px; }
.pill-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.mini-pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(143,216,255,0.12);
  color: var(--text);
  cursor: pointer;
}

.experience-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 12px;
  margin: 34px 0 24px;
}
.experience-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  padding: 18px 10px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.055);
  color: var(--text);
  cursor: pointer;
}
.experience-card.active {
  background: linear-gradient(135deg, rgba(104, 200, 255, 0.32), rgba(133, 255, 193, 0.20));
  border-color: rgba(143, 216, 255, 0.6);
}
.experience-card .icon { font-size: 2rem; }
.experience-card span:not(.icon) { font-weight: 900; }
.experience-card small { color: var(--muted); text-align: center; }

.demo-stage {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(320px, 0.9fr);
  gap: 28px;
  padding: 28px;
}
.glasses-panel {
  display: grid;
  align-content: center;
  min-height: 430px;
  border-radius: 24px;
  background: radial-gradient(circle at 50% 20%, rgba(143, 216, 255, 0.18), transparent 34%), #08192d;
  padding: 24px;
  position: relative;
  overflow: hidden;
}
.glasses-frame {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  position: relative;
  margin-bottom: 22px;
}
.lens {
  width: min(34vw, 205px);
  height: 128px;
  border: 7px solid rgba(255,255,255,0.86);
  background: linear-gradient(135deg, rgba(143,216,255,0.20), rgba(255,255,255,0.04));
  display: grid;
  place-items: center;
  color: white;
  text-align: center;
  font-weight: 900;
  padding: 12px;
}
.lens.left { border-radius: 58% 42% 45% 55%; }
.lens.right { border-radius: 42% 58% 55% 45%; }
.bridge { width: 44px; height: 12px; border-top: 7px solid rgba(255,255,255,0.86); }
.camera-dot {
  position: absolute;
  top: 23px;
  right: calc(50% - 220px);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #253c57;
  border: 2px solid rgba(255,255,255,0.7);
  box-shadow: none;
}
.camera-dot.on { background: var(--warning); box-shadow: 0 0 22px var(--warning); }
.status-bar {
  justify-self: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 14px;
  color: var(--accent-2);
  background: rgba(0,0,0,0.24);
  font-weight: 800;
}
.visual-output {
  margin-top: 24px;
  padding: 18px;
  min-height: 112px;
  border-radius: 18px;
  background: rgba(255,255,255,0.055);
  border: 1px solid var(--line);
  color: var(--text);
}
.demo-copy { padding: 8px 4px; }
.demo-copy h3 { font-size: clamp(1.5rem, 3vw, 2.3rem); margin: 0 0 14px; letter-spacing: -0.035em; }
.dialogue { margin: 18px 0; display: grid; gap: 10px; }
.bubble {
  padding: 12px 14px;
  border-radius: 18px;
  background: rgba(255,255,255,0.075);
  color: var(--text);
  border: 1px solid var(--line);
}
.bubble.user { background: rgba(143,216,255,0.14); }
.bubble.meta { background: rgba(156,255,199,0.12); }

.guided-card { padding: 24px; display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; }
.guided-card h3, .mode-card h3, .objection-output h3 { margin: 0 0 8px; }
.progress-shell { height: 12px; background: rgba(255,255,255,0.08); border-radius: 999px; overflow: hidden; margin-top: 16px; }
.progress-bar { height: 100%; width: 0%; background: linear-gradient(90deg, #68c8ff, #85ffc1); transition: width 0.3s ease; }

.objection-output { padding: 24px; }
.mode-grid, .privacy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.mode-card, .privacy-card, .brief-panel { padding: 24px; }
ol { color: var(--muted); line-height: 1.65; padding-left: 22px; }
.privacy-grid { grid-template-columns: repeat(4, 1fr); }
.privacy-card strong { display: block; color: var(--accent-2); margin-bottom: 8px; }
.brief-panel pre {
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 250px;
  padding: 18px;
  border-radius: 16px;
  background: rgba(0,0,0,0.24);
  color: var(--text);
  border: 1px solid var(--line);
  line-height: 1.5;
}

.strategy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 28px;
}
.strategy-card { padding: 22px; }
.strategy-card h3 { margin: 0 0 10px; font-size: 1.2rem; }

footer {
  border-top: 1px solid var(--line);
  padding: 28px 24px;
  text-align: center;
  color: var(--muted);
  background: rgba(0,0,0,0.18);
}

@media (max-width: 1080px) {
  .control-panel { grid-template-columns: 1fr 1fr; }
  .experience-grid { grid-template-columns: repeat(4, 1fr); }
  .privacy-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 920px) {
  .intro, .demo-stage, .guided-card { grid-template-columns: 1fr; }
  .scenario-grid, .strategy-grid, .mode-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .experience-grid, .strategy-grid, .scenario-grid, .objection-grid, .mode-grid, .privacy-grid, .control-panel { grid-template-columns: 1fr; }
  .lens { height: 100px; width: 145px; }
  .camera-dot { right: 64px; }
}