/* ===== Claude/Anthropic Design System ===== */

/* CSS Variables - Design Tokens */
:root {
  /* Background Colors */
  --bg-primary: #FAF9F5;
  --bg-secondary: #F5F4F0;
  --bg-tertiary: #E8E6DC;
  --bg-dark: #191918;

  /* Text Colors */
  --text-primary: #141413;
  --text-body: #30302E;
  --text-secondary: #5E5D59;
  --text-tertiary: #8A8985;
  --text-inverse: #FAF9F5;

  /* Accent Colors */
  --accent-orange: #DA7756;
  --accent-terracotta: #C4653A;
  --accent-rust: #B85A3B;

  /* Functional Colors */
  --border: #E8E6DC;
  --success: #2ea043;
  --error: #cf222e;

  /* Motion */
  --duration-fast: 150ms;
  --duration-normal: 200ms;
  --duration-slow: 300ms;
  --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
  background-color: var(--bg-primary);
  color: var(--text-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Typography ===== */
h1, h2, h3 {
  margin: 0;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

p {
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ===== Layout ===== */
.main-container {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
}

@media (max-width: 640px) {
  .main-container {
    padding: var(--space-6) var(--space-4);
  }
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border);
}

.header-container {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (max-width: 640px) {
  .header-container {
    padding: var(--space-4);
  }
}

/* ===== Logo ===== */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.logo-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-orange);
  border-radius: 0 var(--radius-md) var(--radius-md) var(--radius-md);
  color: white;
}

.logo-icon-small {
  width: 24px;
  height: 24px;
  border-radius: 0 6px 6px 6px;
}

.logo-text {
  font-family: Georgia, serif;
  font-size: 20px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.logo-footer .logo-text {
  color: var(--text-inverse);
}

/* ===== Navigation ===== */
.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease-default);
}

.nav-link:hover {
  color: var(--accent-orange);
}

/* ===== Hero Section ===== */
.hero {
  text-align: center;
  padding: var(--space-12) 0;
}

.hero-title {
  font-family: Georgia, serif;
  font-size: 40px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.6;
}

@media (max-width: 640px) {
  .hero {
    padding: var(--space-8) 0;
  }
  .hero-title {
    font-size: 28px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
}

/* ===== Cards ===== */
.card {
  background-color: var(--bg-secondary);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.card-leaf-tl {
  border-radius: 0 var(--radius-2xl) var(--radius-2xl) var(--radius-2xl);
}

.card-leaf-tr {
  border-radius: var(--radius-xl) 0 var(--radius-xl) var(--radius-xl);
}

.card-status {
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
}

@media (min-width: 640px) {
  .card {
    padding: var(--space-8);
  }
}

/* ===== Step Header ===== */
.step-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.step-number {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--text-primary);
  color: white;
  font-size: 14px;
  font-weight: 600;
  border-radius: 50%;
}

.step-title {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.02em;
}

/* ===== Result Header ===== */
.result-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.result-icon {
  color: var(--accent-orange);
}

/* ===== Forms ===== */
.input-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.input-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

@media (min-width: 640px) {
  .input-row {
    flex-direction: row;
  }
}

.input-wrapper {
  position: relative;
  flex: 1;
}

.input-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  pointer-events: none;
}

.input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: 16px;
  font-family: inherit;
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--duration-fast) var(--ease-default),
              box-shadow var(--duration-fast) var(--ease-default);
}

.input-with-icon {
  padding-left: 44px;
}

.input::placeholder {
  color: var(--text-tertiary);
}

.input:focus {
  border-color: var(--text-primary);
  box-shadow: 0 0 0 1px var(--text-primary);
}

/* ===== Textarea ===== */
.textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: 14px;
  font-family: inherit;
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  resize: vertical;
  outline: none;
  line-height: 1.6;
  transition: border-color var(--duration-fast) var(--ease-default),
              box-shadow var(--duration-fast) var(--ease-default);
}

.textarea::placeholder {
  color: var(--text-tertiary);
}

.textarea:focus {
  border-color: var(--text-primary);
  box-shadow: 0 0 0 1px var(--text-primary);
}

/* ===== Select ===== */
.select-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

@media (min-width: 640px) {
  .select-row {
    flex-direction: row;
  }
}

.select-wrapper {
  position: relative;
  flex: 1;
}

.select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  padding-right: 40px;
  font-size: 14px;
  font-family: inherit;
  font-weight: 500;
  background-color: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  cursor: pointer;
  appearance: none;
  outline: none;
  transition: border-color var(--duration-fast) var(--ease-default);
}

.select:focus {
  border-color: var(--text-primary);
}

.select-arrow {
  position: absolute;
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  pointer-events: none;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-default);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--text-primary);
  color: white;
  border: none;
}

.btn-primary:hover:not(:disabled) {
  opacity: 0.9;
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background-color: white;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--text-primary);
}

.btn-secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-accent {
  background-color: var(--accent-orange);
  color: white;
  border: none;
  padding: var(--space-3) var(--space-8);
}

.btn-accent:hover:not(:disabled) {
  background-color: var(--accent-terracotta);
}

.btn-accent:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===== File Upload ===== */
.file-upload {
  margin-bottom: var(--space-6);
}

.file-input {
  display: none;
}

.file-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-6);
  border: 2px dashed var(--border);
  border-radius: var(--radius-xl);
  background-color: var(--bg-primary);
  cursor: pointer;
  text-align: center;
  transition: border-color var(--duration-fast) var(--ease-default);
}

.file-label:hover {
  border-color: var(--accent-orange);
}

.file-label svg {
  color: var(--text-tertiary);
}

.file-label span {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.file-label.file-selected {
  border-color: var(--success);
  background-color: rgba(46, 160, 67, 0.05);
}

.file-label.file-selected svg {
  color: var(--success);
}

/* ===== File Status ===== */
.file-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background-color: rgba(46, 160, 67, 0.08);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  color: var(--success);
}

.file-status svg {
  flex-shrink: 0;
}

/* ===== Option Sections ===== */
.option-section {
  margin-bottom: var(--space-6);
}

.option-box {
  padding: var(--space-4);
  background-color: var(--bg-primary);
  border-radius: var(--radius-lg);
}

/* ===== Radio Group ===== */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.radio-card {
  display: flex;
  cursor: pointer;
}

.radio-card input[type="radio"] {
  display: none;
}

.radio-content {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--duration-fast) var(--ease-default);
}

.radio-content svg {
  color: var(--text-secondary);
}

.radio-content span {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.radio-card:hover .radio-content {
  border-color: var(--text-primary);
}

.radio-card input[type="radio"]:checked + .radio-content {
  border-color: var(--accent-orange);
  background-color: rgba(218, 119, 86, 0.05);
}

.radio-card input[type="radio"]:checked + .radio-content svg {
  color: var(--accent-orange);
}

/* ===== Info Note ===== */
.info-note {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 14px;
  color: var(--text-secondary);
}

.info-note svg {
  color: var(--accent-orange);
  flex-shrink: 0;
}

/* ===== Hint Text ===== */
.hint-text {
  margin-top: var(--space-2);
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.5;
}

.hint-text strong {
  color: var(--text-secondary);
}

/* ===== Error Message ===== */
.error-message {
  margin-top: var(--space-3);
  font-size: 14px;
  font-weight: 500;
  color: var(--error);
}

/* ===== Status Card ===== */
.status-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-6);
  margin-bottom: var(--space-4);
}

.status-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.status-label {
  font-size: 14px;
  color: var(--text-secondary);
}

.status-value {
  font-family: 'SF Mono', Monaco, 'Courier New', monospace;
  font-size: 14px;
  padding: 2px 8px;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
}

/* ===== Progress Bar ===== */
.progress-bar {
  height: 8px;
  background-color: var(--bg-tertiary);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background-color: var(--success);
  border-radius: 999px;
  transition: width var(--duration-slow) var(--ease-out);
}

/* ===== Transcribe Section ===== */
.transcribe-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .transcribe-section {
    flex-direction: row;
    align-items: center;
  }
}

/* ===== Transcription Progress ===== */
.transcribe-progress {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
}

.progress-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.progress-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.progress-status {
  font-size: 14px;
  font-weight: 500;
  color: var(--success);
}

/* ===== Log Viewer ===== */
.log-viewer {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background-color: #1e1e1e;
  border-radius: var(--radius-lg);
  max-height: 200px;
  overflow-y: auto;
}

#logContent {
  font-family: 'SF Mono', Monaco, 'Courier New', monospace;
  font-size: 12px;
  color: #d4d4d4;
  white-space: pre-wrap;
  word-break: break-all;
}

.log-line {
  margin: 2px 0;
}

.log-time {
  color: #888;
}

.log-info {
  color: #4fc3f7;
}

.log-warn {
  color: #ffb74d;
}

.log-error {
  color: #ef5350;
}

/* ===== Result Content ===== */
.result-content {
  padding: var(--space-4);
  background-color: var(--bg-primary);
  border-radius: var(--radius-lg);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-body);
  white-space: pre-wrap;
  max-height: 400px;
  overflow-y: auto;
  min-height: 120px;
}

.result-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

/* ===== Footer ===== */
.footer {
  margin-top: var(--space-16);
  background-color: var(--bg-dark);
}

.footer-container {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-12) var(--space-6);
}

.footer-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .footer-top {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.footer-link {
  font-size: 14px;
  color: rgba(250, 249, 245, 0.6);
  transition: color var(--duration-fast) var(--ease-default);
}

.footer-link:hover {
  color: var(--text-inverse);
}

.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(250, 249, 245, 0.1);
  text-align: center;
  font-size: 14px;
  color: rgba(250, 249, 245, 0.4);
}

/* ===== Utility: Hidden ===== */
[hidden] {
  display: none !important;
}

/* ===== Model Status States ===== */
#modelStatus.downloaded {
  color: var(--success);
}

#modelStatus.downloading {
  color: #bf8700;
}

/* ===== Ready State ===== */
#transcribeHint.ready {
  color: var(--success);
}

/* ===== Streaming Transcript ===== */
.segment-count {
  margin-left: auto;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-tertiary);
  background-color: var(--bg-primary);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.streaming-transcript {
  margin-top: var(--space-4);
  max-height: 400px;
  overflow-y: auto;
  border-radius: var(--radius-lg);
  background-color: var(--bg-primary);
}

.transcript-segments {
  padding: var(--space-2);
}

.transcript-segment {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  animation: fadeSlideIn var(--duration-slow) var(--ease-out);
  transition: background-color var(--duration-fast) var(--ease-default);
}

.transcript-segment:last-child {
  margin-bottom: 0;
}

.transcript-segment:hover {
  background-color: var(--bg-secondary);
}

.transcript-segment.segment-new {
  background-color: rgba(218, 119, 86, 0.08);
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.segment-speaker {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 48px;
  flex-shrink: 0;
}

.segment-avatar {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 600;
  color: white;
}

.segment-avatar.speaker-1 { background-color: #6366f1; }
.segment-avatar.speaker-2 { background-color: #8b5cf6; }
.segment-avatar.speaker-3 { background-color: #ec4899; }
.segment-avatar.speaker-4 { background-color: #f97316; }
.segment-avatar.speaker-5 { background-color: #14b8a6; }
.segment-avatar.speaker-unknown { background-color: var(--text-tertiary); }

.segment-time {
  font-size: 10px;
  font-family: 'SF Mono', Monaco, 'Courier New', monospace;
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}

.segment-content {
  flex: 1;
  min-width: 0;
}

.segment-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-1);
}

.segment-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-body);
  word-wrap: break-word;
}

/* Empty State */
.transcript-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
  text-align: center;
  color: var(--text-tertiary);
}

.transcript-empty svg {
  margin-bottom: var(--space-3);
  opacity: 0.5;
}

.transcript-empty-text {
  font-size: 14px;
}

/* Loading Animation */
.segment-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  color: var(--accent-orange);
}

.segment-loading-dots {
  display: flex;
  gap: 4px;
}

.segment-loading-dots span {
  width: 6px;
  height: 6px;
  background-color: var(--accent-orange);
  border-radius: 50%;
  animation: loadingBounce 1.4s infinite ease-in-out both;
}

.segment-loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.segment-loading-dots span:nth-child(2) { animation-delay: -0.16s; }
.segment-loading-dots span:nth-child(3) { animation-delay: 0; }

@keyframes loadingBounce {
  0%, 80%, 100% {
    transform: scale(0);
  }
  40% {
    transform: scale(1);
  }
}