:root {
  color-scheme: light;
  --ink: #102239;
  --muted: #637083;
  --navy: #0c2036;
  --blue: #176c8f;
  --aqua: #65c9c2;
  --cream: #f4f0e8;
  --white: #fff;
  --line: rgba(16, 34, 57, 0.12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 8%, rgba(101, 201, 194, 0.22), transparent 31rem),
    linear-gradient(145deg, #fbfaf6 0%, var(--cream) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.25;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 120 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.08'/%3E%3C/svg%3E");
}

.shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0 48px;
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(260px, 0.75fr);
  gap: 42px;
  align-items: center;
}

.brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  color: var(--white);
  background: var(--navy);
  font-family: Georgia, serif;
  font-size: 26px;
  font-style: italic;
}

.eyebrow {
  margin: 22px 0 10px;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

h1 {
  max-width: 720px;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.8rem, 6.5vw, 5.5rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.intro {
  max-width: 650px;
  margin: 25px 0 30px;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.7;
}

.demo-card,
.business-card,
.transcript-panel {
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 20px 60px rgba(20, 50, 70, 0.12);
  backdrop-filter: blur(15px);
}

.demo-card {
  max-width: 690px;
  padding: 24px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.8);
  text-align: center;
}

.status-row { display: flex; align-items: center; gap: 9px; text-align: left; font-size: 0.9rem; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; background: #a0a7af; box-shadow: 0 0 0 5px rgba(160,167,175,.13); }
.status-dot[data-state="listening"] { background: #26a46f; box-shadow: 0 0 0 5px rgba(38,164,111,.13); }
.status-dot[data-state="thinking"], .status-dot[data-state="speaking"] { background: #eea444; box-shadow: 0 0 0 5px rgba(238,164,68,.15); }
.status-dot[data-state="error"] { background: #cc514a; }
.language-pill { margin-left: auto; padding: 7px 10px; border-radius: 99px; color: var(--blue); background: #e5f5f3; font-size: .72rem; font-weight: 800; }

.voice-orb {
  width: 132px;
  height: 132px;
  margin: 28px auto;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: linear-gradient(145deg, var(--navy), var(--blue));
  box-shadow: inset 0 1px 1px rgba(255,255,255,.22), 0 18px 35px rgba(12,32,54,.24);
}

.voice-orb span { width: 4px; height: 18px; border-radius: 4px; background: var(--aqua); opacity: .72; }
.voice-orb[data-state="listening"] span,
.voice-orb[data-state="speaking"] span { animation: waveform .75s ease-in-out infinite alternate; }
.voice-orb span:nth-child(2), .voice-orb span:nth-child(4) { animation-delay: .18s; }
.voice-orb span:nth-child(3) { animation-delay: .36s; }
@keyframes waveform { to { height: 50px; opacity: 1; } }

button { font: inherit; cursor: pointer; }
.primary-button, .end-button { width: min(100%, 310px); padding: 15px 22px; border-radius: 999px; font-weight: 800; }
.primary-button { border: 0; color: var(--white); background: var(--blue); box-shadow: 0 9px 24px rgba(23,108,143,.25); }
.primary-button:hover { transform: translateY(-1px); background: #125c7a; }
.primary-button:disabled { cursor: wait; opacity: .7; }
.end-button { border: 1px solid var(--line); color: var(--ink); background: var(--white); }
.mic-icon { display: inline-block; margin-right: 9px; color: var(--aqua); }
.privacy-note { margin: 14px 0 0; color: var(--muted); font-size: .74rem; }

.business-card { padding: 28px; border-radius: 28px; color: #eaf7f6; background: rgba(12, 32, 54, 0.95); }
.business-card .eyebrow { margin-top: 0; color: var(--aqua); }
.business-card h2 { margin: 0 0 22px; font-family: Georgia, serif; font-size: 2rem; font-weight: 500; }
.business-card dl, .business-card dd { margin: 0; }
.business-card dl div { padding: 16px 0; border-top: 1px solid rgba(255,255,255,.12); }
.business-card dt { margin-bottom: 4px; color: var(--aqua); font-size: .73rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.business-card dd { color: #e0e7ea; line-height: 1.45; }
.demo-warning { margin: 20px 0 0; padding: 12px 14px; border-radius: 10px; color: #f5d49a; background: rgba(238,164,68,.12); font-size: .8rem; }

.transcript-panel { width: min(820px, calc(100% - 40px)); margin: 0 auto 70px; padding: 24px; border-radius: 24px; background: rgba(255,255,255,.83); }
.transcript-heading { display: flex; align-items: center; justify-content: space-between; }
.transcript-heading h2 { margin: 0; font-family: Georgia, serif; font-size: 1.5rem; font-weight: 500; }
.transcript-heading button { border: 0; color: var(--blue); background: transparent; font-size: .8rem; font-weight: 800; }
.transcript { margin-top: 20px; display: grid; gap: 12px; }
.message { max-width: 84%; padding: 12px 15px; border-radius: 17px; display: grid; gap: 4px; line-height: 1.45; }
.message strong { font-size: .72rem; text-transform: uppercase; letter-spacing: .07em; }
.message.assistant { justify-self: start; background: #e4f3f2; }
.message.user { justify-self: end; color: var(--white); background: var(--blue); }
.message[data-draft="true"] { opacity: .8; }

[hidden] { display: none !important; }

@media (max-width: 780px) {
  .shell { grid-template-columns: 1fr; padding-top: 40px; }
  h1 { font-size: clamp(2.7rem, 14vw, 4.4rem); }
  .business-card { order: 2; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
}