:root {
  color-scheme: light;
  --bg-top: #f9efe2;
  --bg-bottom: #d4ecff;
  --card: rgba(255, 255, 255, 0.86);
  --card-border: rgba(34, 47, 62, 0.08);
  --text-main: #1f2933;
  --text-soft: #52606d;
  --accent: #ff7a59;
  --accent-strong: #eb5e3c;
  --line: rgba(31, 41, 51, 0.12);
  --shadow: 0 20px 45px rgba(31, 41, 51, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Trebuchet MS", sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.85), transparent 34%),
    linear-gradient(160deg, var(--bg-top), var(--bg-bottom));
}

.app-shell {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 40px;
  display: grid;
  gap: 20px;
}

.hero-card,
.camera-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-card {
  padding: 28px;
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.74rem;
  color: var(--accent-strong);
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 0.95;
}

.subcopy,
.camera-note,
.status-text {
  color: var(--text-soft);
}

.subcopy {
  max-width: 52ch;
  margin: 14px 0 0;
  font-size: 1.02rem;
  line-height: 1.5;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-top: 24px;
}

.primary-button {
  border: 0;
  border-radius: 999px;
  padding: 14px 22px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: white;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 12px 24px rgba(235, 94, 60, 0.28);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.primary-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 30px rgba(235, 94, 60, 0.34);
}

.primary-button:disabled {
  cursor: wait;
  opacity: 0.7;
}

.camera-toggle {
  display: inline-flex;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
}

.toggle-button {
  border: 0;
  border-radius: 999px;
  padding: 10px 14px;
  background: transparent;
  color: var(--text-soft);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.toggle-button.active {
  background: var(--text-main);
  color: white;
}

.toggle-button:disabled {
  cursor: wait;
  opacity: 0.6;
}

.camera-card {
  padding: 18px;
}

.video-frame {
  position: relative;
  overflow: hidden;
  border-radius: 22px;
  background: #0f1720;
  border: 1px solid var(--line);
  aspect-ratio: 16 / 10;
}

#cameraFeed,
#overlay {
  width: 100%;
  height: 100%;
  display: block;
}

#cameraFeed {
  object-fit: cover;
}

#overlay,
.popup {
  position: absolute;
  inset: 0;
}

.popup {
  inset: auto 16px 16px 16px;
  padding: 14px 18px;
  border-radius: 18px;
  background: rgba(15, 23, 32, 0.82);
  color: white;
  font-weight: 700;
  letter-spacing: 0.01em;
  transform: translateY(18px);
  opacity: 0;
  pointer-events: none;
  transition: transform 220ms ease, opacity 220ms ease;
}

.popup.visible {
  transform: translateY(0);
  opacity: 1;
}

.camera-note {
  margin: 14px 4px 0;
  font-size: 0.95rem;
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100% - 20px, 640px);
    padding-top: 14px;
  }

  .hero-card,
  .camera-card {
    border-radius: 22px;
  }

  .hero-card {
    padding: 22px;
  }

  .video-frame {
    aspect-ratio: 3 / 4;
  }
}