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

:root {
  --bg: #0a0a1a;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.15);
  --text: #ffffff;
  --text-dim: rgba(255, 255, 255, 0.5);
  --danger: #ff4060;
  --card-bg: rgba(255, 255, 255, 0.06);
  --card-border: rgba(255, 255, 255, 0.1);
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

/* Screens */
.screen {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem 1.5rem;
  text-align: center;
  gap: 1.2rem;
}

.screen.active {
  display: flex;
}

h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* Avatar-Grid */
.avatar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  width: 100%;
  max-width: 400px;
  margin: 0.5rem 0;
}

.avatar-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem;
  border-radius: 12px;
  border: 2px solid var(--card-border);
  background: var(--card-bg);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
}

.avatar-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 8px;
}

.avatar-card .avatar-name {
  font-size: 0.85rem;
  color: var(--text-dim);
  transition: color 0.2s;
}

.avatar-card.selected {
  border-color: var(--accent);
  background: var(--accent-dim);
  transform: scale(1.03);
}

.avatar-card.selected .avatar-name {
  color: var(--accent);
  font-weight: 600;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 320px;
  padding: 1rem 1.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--bg);
  background: var(--accent);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
  margin-top: 0.5rem;
}

.btn-primary:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.btn-primary:active:not(:disabled) {
  transform: scale(0.97);
}

.btn-secondary {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 0.95rem;
  cursor: pointer;
  padding: 0.5rem;
}

.btn-secondary:active {
  color: var(--text);
}

.btn-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 1.3rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s;
}

.btn-icon:active {
  border-color: var(--accent);
}

.btn-icon.btn-danger {
  border-color: rgba(255, 64, 96, 0.3);
}

.btn-icon.btn-danger:active {
  border-color: var(--danger);
}

/* Record Button */
.btn-record {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 4px solid var(--danger);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.record-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--danger);
  transition: border-radius 0.2s, width 0.2s, height 0.2s;
}

.btn-record.recording .record-icon {
  width: 24px;
  height: 24px;
  border-radius: 4px;
}

.record-controls {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.preview-controls {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

/* Timer */
.timer {
  font-size: 2.5rem;
  font-weight: 300;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

/* Waveform */
#waveform {
  width: 100%;
  max-width: 300px;
  height: 80px;
  opacity: 0.6;
}

/* Hint */
.hint {
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* Spinner */
.spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--card-border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.wait-text {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.6;
}

.status-text {
  color: var(--accent);
  font-size: 0.85rem;
  min-height: 1.2em;
}

/* Done */
.done-text {
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1.6;
}

/* Error */
.error-text {
  color: var(--danger);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Safe area for notch phones */
@supports (padding-top: env(safe-area-inset-top)) {
  .screen {
    padding-top: calc(2rem + env(safe-area-inset-top));
    padding-bottom: calc(2rem + env(safe-area-inset-bottom));
  }
}