:root {
  --bg-color: #0b1020;
  --panel-bg: #121a2d;
  --panel-soft: #17223b;
  --text-main: #f8fafc;
  --text-muted: #9fb0cd;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --danger: #ef4444;
  --border-color: #2d3d62;
  --max: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: radial-gradient(circle at 20% 10%, #1a2750 0%, var(--bg-color) 40%);
  color: var(--text-main);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

.screen { display: none; width: 100%; min-height: 100vh; }
.screen.active { display: block; }

#authScreen { overflow-x: hidden; }

.landing-nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon {
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--primary), #22d3ee);
  border-radius: 6px;
}

.nav-links { display: flex; gap: 20px; color: var(--text-muted); font-size: 14px; }
.nav-links a:hover { color: var(--text-main); }

.landing-main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 8px 20px 56px;
  display: grid;
  gap: 22px;
}

.hero {
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 42px;
}

.hero-kicker {
  color: #93c5fd;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 12px;
  margin-bottom: 12px;
}

.hero h1 {
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.05;
  margin-bottom: 14px;
}

.hero-sub {
  color: var(--text-muted);
  max-width: 720px;
  font-size: 18px;
  line-height: 1.5;
}

.hero-actions { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: white;
  border: none;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.28);
  transition: transform .2s ease, opacity .2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary:hover { transform: translateY(-1px); }
.btn-primary:active { transform: translateY(1px); }

.btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 11px 16px;
  border-radius: 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-secondary:hover { background: rgba(255,255,255,0.06); }

.nav-cta { padding: 10px 14px; font-size: 14px; }

.trust-strip {
  color: var(--text-muted);
  font-size: 14px;
  text-align: center;
}

.feature-grid,
.use-cases,
.pricing {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 20px;
}

.card h3 { margin-bottom: 8px; font-size: 19px; }
.card p { color: var(--text-muted); line-height: 1.55; }

.demo-section {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 20px;
  align-items: center;
}

.demo-label {
  color: #93c5fd;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.demo-section h2 { font-size: 30px; margin-bottom: 10px; }

.demo-window {
  background: #0a1224;
  border: 1px solid #334a77;
  border-radius: 12px;
  padding: 14px;
  display: grid;
  gap: 8px;
  font-size: 14px;
}

.price { font-size: 28px; color: var(--text-main); margin-bottom: 6px; }
.featured { border-color: #6366f1; box-shadow: 0 0 0 1px rgba(99,102,241,0.4) inset; }

.faq { display: grid; gap: 10px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin-top: 10px; }

.final-cta {
  text-align: center;
  display: grid;
  gap: 14px;
  justify-items: center;
}

.final-cta h2 { font-size: 30px; }

.meta-note {
  font-size: 12px;
  color: var(--text-muted);
}

.error-msg { color: var(--danger); font-size: 14px; margin-top: 12px; }
.error-msg.hidden { display: none; }

.landing-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 13px;
}

.landing-footer div { display: flex; gap: 14px; }

/* App screen */
#appScreen.screen.active {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

#appScreen header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  border-bottom: 1px solid var(--border-color);
}

.session-controls { display: flex; align-items: center; gap: 12px; }
.user-email { color: var(--text-muted); font-size: 13px; }

#appScreen main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}

.mic-container {
  position: relative;
  width: 140px;
  height: 140px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px;
}

.mic-btn {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  color: var(--text-main);
  cursor: pointer;
  z-index: 2;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.mic-btn svg { width: 40px; height: 40px; }
.mic-btn:hover { transform: translateY(-2px); }

.recording .mic-btn {
  background: linear-gradient(135deg, #7f1d1d, #450a0a);
  color: #fca5a5;
}

.recording .glow-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 90px;
  height: 90px;
  margin-top: -45px;
  margin-left: -45px;
  border-radius: 50%;
  background-color: var(--danger);
  z-index: 1;
  animation: pulse-ring 2s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(2); opacity: 0; }
}

.status-container { margin-bottom: 40px; color: var(--text-muted); }
.recording .status-container { color: var(--danger); font-weight: 600; }

.transcript-box {
  width: 100%;
  height: 200px;
  background-color: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  overflow-y: auto;
  font-size: 18px;
  line-height: 1.6;
}

.placeholder { color: var(--text-muted); font-style: italic; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .feature-grid, .use-cases, .pricing, .demo-section { grid-template-columns: 1fr; }
  .hero { padding: 28px; }
  .hero h1 { font-size: 34px; }
  .final-cta h2 { font-size: 25px; }
  .landing-footer { flex-direction: column; gap: 8px; }
}