/* ===== Global Reset & Variables ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-border: #bfdbfe;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --bg-page: #f3f4f6;
  --bg-white: #ffffff;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition: 0.18s ease;
}

html, body, #root {
  height: 100%;
}

body {
  font-family: var(--font);
  color: var(--text-primary);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 2px 8px rgba(37,99,235,0.25);
}
.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(37,99,235,0.35);
}
.btn-primary:active { transform: translateY(0); }

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--primary);
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.btn-icon:hover { background: var(--primary-light); }

/* ===== Card ===== */
.card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* ===== Audio Input Card ===== */
.audio-input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.audio-input-divider {
  border-top: 1px solid var(--border);
  padding: 20px 28px;
  display: flex;
  justify-content: center;
}

/* ===== Drop Zone ===== */
.dropzone {
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  transition: background var(--transition);
  min-height: 200px;
}
.dropzone:hover, .dropzone.dragging {
  background: var(--primary-light);
}

.dropzone-inner {
  border: 2px dashed var(--primary-border);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  transition: border-color var(--transition);
}
.dropzone:hover .dropzone-inner, .dropzone.dragging .dropzone-inner {
  border-color: var(--primary);
}

.dropzone-icon {
  width: 44px;
  height: 44px;
  background: var(--primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.dropzone-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}
.dropzone-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
}

.dropzone-formats {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
}
.format-badge {
  background: var(--bg-page);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

.btn-browse {
  background: var(--bg-white);
  border: 1px solid var(--primary-border);
  color: var(--primary);
  border-radius: var(--radius-sm);
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: var(--font);
  transition: background var(--transition);
}
.btn-browse:hover { background: var(--primary-light); }

.file-selected {
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
  text-align: center;
  margin-top: 4px;
}

/* ===== Audio Player Card ===== */
.audio-player-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 24px;
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-md);
}

.audio-player-info {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
}

.audio-player-icon {
  color: var(--primary);
  flex-shrink: 0;
}

.audio-player-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.audio-player-size {
  font-size: 13px;
  color: var(--text-secondary);
}

.audio-player-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.audio-player-play-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  cursor: pointer;
  color: #fff;
  transition: background var(--transition), transform var(--transition);
  flex-shrink: 0;
}
.audio-player-play-btn:hover {
  background: var(--primary-hover);
  transform: scale(1.08);
}

.audio-player-progress {
  flex: 1;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  cursor: pointer;
  overflow: hidden;
  transition: background var(--transition);
}
.audio-player-progress:hover {
  background: var(--primary-border);
}

.audio-player-progress-bar {
  height: 100%;
  background: var(--primary);
  border-radius: 3px;
  transition: width 0.1s linear;
}

.audio-player-time {
  font-size: 12px;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  min-width: 80px;
  text-align: center;
}

.audio-player-delete-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: #ef4444;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
  flex-shrink: 0;
}
.audio-player-delete-btn:hover {
  background: #fee2e2;
}

/* ===== Selected File Display (Legacy) ===== */
.selected-file-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-md);
}

.selected-file-info {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
}

.selected-file-info svg {
  color: var(--primary);
  flex-shrink: 0;
}

.selected-file-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  max-width: 400px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.selected-file-size {
  font-size: 13px;
  color: var(--text-secondary);
}

.btn-danger {
  color: #ef4444;
}
.btn-danger:hover {
  background: #fee2e2;
}

/* ===== Error Banner ===== */
.error-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  color: #dc2626;
  font-size: 14px;
  margin: 0 28px;
  margin-bottom: 16px;
}

.error-banner svg:first-child {
  flex-shrink: 0;
  color: #dc2626;
}

.btn-error-close {
  color: #dc2626;
  margin-left: auto;
}
.btn-error-close:hover {
  background: #fee2e2;
}

/* ===== Recorder ===== */
.recorder-zone {
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 200px;
  border-left: 1px solid var(--border);
}

/* Permission Error Banner */
.permission-denied-banner {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  color: #dc2626;
  font-size: 14px;
  margin-bottom: 8px;
  max-width: 420px;
}

.permission-denied-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.permission-denied-content strong {
  font-weight: 600;
}

.permission-denied-text {
  font-size: 13px;
  color: #dc2626;
  margin: 0;
}

.btn-permission-close {
  color: #dc2626;
  margin-left: auto;
}
.btn-permission-close:hover {
  background: #fee2e2;
}

.recorder-btn {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 28px;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 16px rgba(37,99,235,0.35);
}
.recorder-btn:hover {
  background: var(--primary-hover);
  transform: scale(1.06);
}
.recorder-btn.permission-denied {
  background: #9ca3af;
  box-shadow: 0 4px 16px rgba(156,163,175,0.35);
  animation: shake-denied 0.5s ease;
}
.recorder-btn.permission-denied:hover {
  background: #6b7280;
  transform: none;
}
@keyframes shake-denied {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px) rotate(-5deg); }
  75% { transform: translateX(6px) rotate(5deg); }
}
.recorder-btn.recording {
  background: #ef4444;
  box-shadow: 0 0 0 8px rgba(239,68,68,0.15), 0 4px 16px rgba(239,68,68,0.35);
  animation: pulse-ring 1.5s ease infinite;
}
@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(239,68,68,0.35), 0 4px 16px rgba(239,68,68,0.35); }
  70% { box-shadow: 0 0 0 14px rgba(239,68,68,0), 0 4px 16px rgba(239,68,68,0.35); }
  100% { box-shadow: 0 0 0 0 rgba(239,68,68,0), 0 4px 16px rgba(239,68,68,0.35); }
}

.recorder-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}
.recorder-timer {
  font-size: 13px;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  font-family: 'Courier New', monospace;
}

/* ===== Transcription Result ===== */
.transcription-result {
  border-top: 1px solid var(--border);
  padding: 20px 28px;
}

.transcription-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.transcription-result-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.transcription-result-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.transcription-textarea {
  width: 100%;
  min-height: 140px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font-size: 14px;
  font-family: var(--font);
  color: var(--text-primary);
  resize: vertical;
  outline: none;
  transition: border-color var(--transition);
  background: var(--bg-white);
}
.transcription-textarea:focus { border-color: var(--primary); }
.transcription-textarea::placeholder { color: var(--text-muted); }

.transcription-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
}
.transcription-footer-left {
  font-size: 12px;
  color: var(--text-muted);
}
.transcription-footer-right {
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  display: inline-block;
}
.status-dot.processing { background: #f59e0b; animation: blink 1s ease infinite; }
.status-dot.error { background: #ef4444; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }

.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Public Layout ===== */
.public-layout {
  min-height: 100vh;
  background: var(--bg-page);
  display: flex;
  flex-direction: column;
}

.public-header {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  display: flex;
  justify-content: center;
}

.public-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.public-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.public-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 48px 20px 32px;
}

.public-hero {
  text-align: center;
  margin-bottom: 36px;
}
.public-hero h1 {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.public-hero p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-top: 10px;
  max-width: 520px;
  line-height: 1.6;
}

.public-card {
  width: 100%;
  max-width: 860px;
}

.public-footer {
  text-align: center;
  padding: 20px;
  font-size: 13px;
  color: var(--text-muted);
}
.public-footer a {
  color: var(--primary);
  text-decoration: none;
}
.public-footer a:hover { text-decoration: underline; }