/* ═══════════════════════════════════════════════════════════
   VoiceAnalytic - Premium Stylesheet
   ═══════════════════════════════════════════════════════════ */

:root {
  --color-primary: #4F46E5;
  --color-primary-light: #818CF8;
  --color-primary-bg: #EEF2FF;
  --color-secondary: #7C3AED;
  --color-accent: #F59E0B;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-danger: #EF4444;
  --color-info: #3B82F6;

  --sidebar-bg: #1a1f37;
  --sidebar-bg-hover: #252b48;
  --sidebar-text: #94A3B8;
  --sidebar-active: #4F46E5;
  --sidebar-width: 260px;

  --bg-main: #F1F5F9;
  --bg-card: #FFFFFF;
  --text-primary: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --border-color: #E2E8F0;
  --border-light: #F1F5F9;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.12);

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 14px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-main);
  color: var(--text-primary);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ═══════════════════════════════════════════════════════════
   SIDEBAR
   ═══════════════════════════════════════════════════════════ */

.sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon svg {
  width: 40px;
  height: 40px;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  color: #fff;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.logo-sub {
  color: var(--sidebar-text);
  font-size: 0.75rem;
  font-weight: 400;
  margin-top: 1px;
}

/* Nav */
.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 0.93rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: width 0.3s ease;
  opacity: 0.15;
}

.nav-item:hover {
  color: #fff;
  background: var(--sidebar-bg-hover);
}

.nav-item:hover::before {
  width: 100%;
}

.nav-item.active {
  color: #fff;
  background: var(--color-primary);
}

.nav-item.active::before {
  display: none;
}

.nav-icon {
  font-size: 1.15rem;
  width: 24px;
  text-align: center;
}

/* Sidebar Footer */
.sidebar-footer {
  padding: 16px 16px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}

.sidebar-user:hover {
  background: rgba(255, 255, 255, 0.08);
}

.sidebar-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.sidebar-user-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.sidebar-user-name {
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  color: var(--sidebar-text);
  font-size: 0.72rem;
  font-weight: 400;
  margin-top: 1px;
}

.sidebar-user-menu {
  background: none;
  border: none;
  color: var(--sidebar-text);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: var(--transition);
  display: flex;
  align-items: center;
}

.sidebar-user-menu:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

/* ═══════════════════════════════════════════════════════════
   MOBILE
   ═══════════════════════════════════════════════════════════ */

.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--sidebar-bg);
  z-index: 99;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
}

.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-title {
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
}

/* ═══════════════════════════════════════════════════════════
   MAIN CONTENT
   ═══════════════════════════════════════════════════════════ */

.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 32px 40px;
  max-width: 1400px;
}

/* Header */
.content-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 32px;
}

.content-header h1 {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.header-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 6px;
}



/* ═══════════════════════════════════════════════════════════
   UPLOAD SECTION
   ═══════════════════════════════════════════════════════════ */

.upload-rules-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
  margin-bottom: 0;
}

/* Upload Zone */
.upload-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  padding: 40px 32px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
  transform: scale(1.01);
}

.upload-zone.drag-over {
  border-style: solid;
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

.upload-zone.has-file {
  border-style: solid;
  border-color: var(--color-success);
  background: #F0FDF4;
  cursor: default;
}

.upload-placeholder {
  width: 100%;
}

.upload-icon {
  margin-bottom: 16px;
  opacity: 0.85;
}

.upload-placeholder h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.upload-placeholder p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.upload-link {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: underline;
}

.upload-hint {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
  background: var(--border-light);
  padding: 4px 12px;
  border-radius: 20px;
}

/* File Preview */
.upload-preview {
  width: 100%;
}

.file-info {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(16, 185, 129, 0.08);
  border-radius: var(--radius-sm);
}

.file-icon {
  font-size: 1.6rem;
}

.file-details {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.file-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.file-size {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.file-remove {
  background: none;
  border: 1px solid var(--border-color);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: var(--transition);
  font-size: 1rem;
}

.file-remove:hover {
  background: var(--color-danger);
  color: #fff;
  border-color: transparent;
}

/* Rules Panel (in grid beside upload) */
.rules-panel {
  display: flex;
}

.rules-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  width: 100%;
  display: flex;
  flex-direction: column;
}

.rules-card .rules-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.rules-card .rules-body textarea {
  flex: 1;
  min-height: 120px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
}

.badge-primary {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.badge-secondary {
  background: #F5F3FF;
  color: var(--color-secondary);
}

.badge-success {
  background: #ECFDF5;
  color: var(--color-success);
}

.badge-warning {
  background: #FFFBEB;
  color: var(--color-accent);
}

.badge-danger {
  background: #FEF2F2;
  color: var(--color-danger);
}

/* ═══════════════════════════════════════════════════════════
   RULES & UPLOAD SECTION
   ═══════════════════════════════════════════════════════════ */

.upload-section {
  margin-bottom: 32px;
}

.rules-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.rules-title span {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.rules-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
}

.toggle-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: #CBD5E1;
  border-radius: 26px;
  transition: var(--transition);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background: #fff;
  border-radius: 50%;
  transition: var(--transition);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.toggle-switch input:checked+.toggle-slider {
  background: var(--color-primary);
}

.toggle-switch input:checked+.toggle-slider::before {
  transform: translateX(22px);
}

/* Textarea */
.rules-body textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.88rem;
  line-height: 1.6;
  resize: vertical;
  min-height: 100px;
  color: var(--text-primary);
  transition: var(--transition);
  background: var(--bg-main);
}

.rules-body textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
  background: #fff;
}

.rules-body textarea:disabled {
  background: var(--border-light);
  color: var(--text-secondary);
  cursor: not-allowed;
}

.rules-actions {
  margin-top: 8px;
}

.btn-upload-txt {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  font-size: 0.82rem;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
}

.btn-upload-txt:hover {
  background: var(--color-primary);
  color: #fff;
}

/* Analyze Button */
.btn-analyze {
  width: 100%;
  margin-top: 20px;
  padding: 16px 32px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-analyze::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.btn-analyze:hover:not(:disabled)::before {
  opacity: 1;
}

.btn-analyze:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(79, 70, 229, 0.35);
}

.btn-analyze:active:not(:disabled) {
  transform: translateY(0);
}

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

.btn-analyze.loading {
  pointer-events: none;
}

.btn-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 3px 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);
  }
}

.analyze-meta {
  text-align: center;
  margin-top: 10px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════════
   RESULTS SECTION
   ═══════════════════════════════════════════════════════════ */

.results-section {
  animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section-title-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.section-title-bar h2 {
  font-size: 1.4rem;
  font-weight: 800;
}

.result-timestamp {
  font-size: 0.82rem;
  color: var(--text-muted);
  background: var(--border-light);
  padding: 4px 12px;
  border-radius: 20px;
}

.results-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 24px;
}

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

/* Audio Player */
.result-audio-card {
  margin-bottom: 20px;
}

.custom-player {
  display: flex;
  align-items: center;
  gap: 16px;
}

.play-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.play-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
}

.player-waveform {
  flex: 1;
  height: 48px;
  display: flex;
  align-items: center;
  gap: 2px;
  cursor: pointer;
  position: relative;
}

.waveform-bar {
  flex: 1;
  background: var(--color-primary-light);
  border-radius: 2px;
  transition: background 0.15s, height 0.15s;
  min-width: 3px;
  max-width: 5px;
}

.waveform-bar.played {
  background: var(--color-primary);
}

.waveform-bar.active {
  background: var(--color-secondary);
}

.player-time {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
  display: flex;
  gap: 3px;
}

/* Transcript */
.transcript-card h3 {
  font-size: 1rem;
  margin-bottom: 16px;
  font-weight: 700;
}

.transcript-content {
  max-height: 400px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-right: 8px;
}

.transcript-content::-webkit-scrollbar {
  width: 4px;
}

.transcript-content::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.chat-bubble {
  display: flex;
  gap: 10px;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.chat-avatar.nv {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.chat-avatar.kh {
  background: #FEF3C7;
  color: #D97706;
}

.chat-body {
  flex: 1;
}

.chat-name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.chat-text {
  padding: 10px 14px;
  border-radius: 0 var(--radius-md) var(--radius-md) var(--radius-md);
  font-size: 0.88rem;
  line-height: 1.55;
}

.chat-bubble.nv .chat-text {
  background: var(--color-primary-bg);
  color: var(--text-primary);
}

.chat-bubble.kh .chat-text {
  background: #FEF3C7;
  color: var(--text-primary);
}

/* ═══════════════════════════════════════════════════════════
   SCORE CARD
   ═══════════════════════════════════════════════════════════ */

.score-card {
  background: linear-gradient(135deg, #F0F9FF, #EFF6FF);
  border: 1px solid #BFDBFE;
  text-align: center;
  margin-bottom: 20px;
}

.score-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.score-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.score-badge {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
}

.score-display {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  margin: 12px 0 16px;
}

.score-number {
  font-size: 4.5rem;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -2px;
}

.score-max {
  font-size: 1.2rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Score Ring */
.score-ring-wrapper {
  display: flex;
  justify-content: center;
  padding: 8px 0;
}

.score-ring {
  width: 140px;
  height: 140px;
}

.ring-bg {
  stroke: #E2E8F0;
}

.ring-progress {
  transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.ring-text {
  font-size: 1.8rem;
  font-weight: 800;
  fill: var(--color-primary);
}

/* Criteria */
.criteria-card {
  margin-bottom: 20px;
}

.criteria-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.criteria-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--border-light);
}

.criteria-item:last-child {
  border-bottom: none;
}

.criteria-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.criteria-name {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-primary);
}

.criteria-score {
  font-size: 0.95rem;
  font-weight: 700;
}

.criteria-score .score-val {
  color: var(--color-primary);
}

.criteria-score .score-sep {
  color: var(--text-muted);
  font-weight: 400;
}

.criteria-bar {
  height: 6px;
  background: var(--border-light);
  border-radius: 6px;
  overflow: hidden;
}

.criteria-bar-fill {
  height: 100%;
  border-radius: 6px;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0%;
}

.criteria-bar-fill.excellent {
  background: linear-gradient(90deg, #10B981, #34D399);
}

.criteria-bar-fill.good {
  background: linear-gradient(90deg, #F59E0B, #FBBF24);
}

.criteria-bar-fill.poor {
  background: linear-gradient(90deg, #EF4444, #F87171);
}

.criteria-detail {
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  padding-left: 12px;
  border-left: 2px solid var(--border-color);
}

/* Summary */
.summary-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.summary-content {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.result-meta {
  margin-top: 16px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.meta-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--border-light);
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ═══════════════════════════════════════════════════════════
   TOAST
   ═══════════════════════════════════════════════════════════ */

.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  min-width: 300px;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: slideInRight 0.4s ease;
  display: flex;
  align-items: center;
  gap: 10px;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast.success {
  background: var(--color-success);
}

.toast.error {
  background: var(--color-danger);
}

.toast.info {
  background: var(--color-info);
}

.toast-close {
  margin-left: auto;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  font-size: 1.2rem;
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .mobile-header {
    display: flex;
  }

  .sidebar-overlay.show {
    display: block;
  }

  .main-content {
    margin-left: 0;
    padding: 72px 20px 32px;
  }

  .upload-rules-grid {
    grid-template-columns: 1fr;
  }

  .results-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .content-header h1 {
    font-size: 1.4rem;
  }

  .upload-zone {
    padding: 28px 16px;
    min-height: 180px;
  }

  .score-number {
    font-size: 3.5rem;
  }

  .rules-header {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
}