:root {
  --color-bg: #f5f6f8;
  --color-card: #ffffff;
  --color-text: #1b1f24;
  --color-muted: #6b7280;
  --color-primary: #d64545;
  --color-primary-dark: #b63838;
  --color-border: #e2e5e9;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

.warning-banner {
  background: #fff4e5;
  color: #92400e;
  padding: 12px 16px;
  font-size: 14px;
  text-align: center;
  border-bottom: 1px solid #f3d9a8;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

h1 {
  font-size: 26px;
  margin: 8px 0 4px;
}

.subtitle {
  color: var(--color-muted);
  margin: 0 0 24px;
  font-size: 15px;
}

.recorder-card,
.result-card,
.history-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
  text-align: center;
}

.record-btn {
  width: 100%;
  min-height: 56px;
  font-size: 18px;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  background: var(--color-primary);
  color: #fff;
  cursor: pointer;
  padding: 12px 20px;
  transition: background 0.15s ease;
}

.record-btn:active {
  background: var(--color-primary-dark);
}

.record-btn.recording {
  background: #374151;
}

.timer {
  margin-top: 14px;
  font-size: 22px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--color-text);
}

.status-msg {
  margin-top: 14px;
  font-size: 15px;
  color: var(--color-muted);
}

.status-msg.error {
  color: var(--color-primary);
}

.retry-btn {
  margin-top: 12px;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: #fff;
  font-size: 15px;
  cursor: pointer;
}

.result-card h2,
.history-card h2 {
  text-align: left;
  font-size: 18px;
  margin: 0 0 14px;
}

.transcript-output {
  text-align: left;
  font-size: 15px;
  line-height: 1.6;
}

.transcript-line {
  padding: 8px 10px;
  border-radius: 8px;
  margin-bottom: 6px;
}

.speaker-color-0 { background: #e7f0fd; }
.speaker-color-1 { background: #fdeee7; }
.speaker-color-2 { background: #e8f8ee; }
.speaker-color-3 { background: #f6eefd; }
.speaker-color-4 { background: #fdf7e2; }

.speaker-label {
  font-weight: 700;
  margin-right: 4px;
}

.history-list {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.history-item {
  width: 100%;
  min-height: 44px;
  text-align: left;
  background: #fafbfc;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.history-date {
  font-size: 12px;
  color: var(--color-muted);
}

.history-preview {
  font-size: 14px;
  color: var(--color-text);
}

.empty-msg {
  color: var(--color-muted);
  font-size: 14px;
  margin: 0;
}