@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --sage-50: #ecfdf5;
  --sage-100: #d1fae5;
  --sage-200: #a7f3d0;
  --sage-300: #6ee7b7;
  --sage-400: #34d399;
  --sage-500: #10b981;
  --sage-600: #059669;
  --sage-700: #047857;
  --sage-800: #065f46;

  --terra-50: #fff7ed;
  --terra-100: #ffedd5;
  --terra-200: #fed7aa;
  --terra-300: #fdba74;
  --terra-400: #fb923c;
  --terra-500: #f97316;
  --terra-600: #ea580c;
  --terra-700: #c2410c;

  --stone-50: #fafaf9;
  --stone-100: #f5f5f4;
  --stone-200: #e7e5e4;
  --stone-300: #d6d3d1;
  --stone-400: #a8a29e;
  --stone-500: #78716c;
  --stone-600: #57534e;
  --stone-700: #44403c;
  --stone-800: #292524;
  --stone-900: #1c1917;

  --bg: var(--stone-50);
  --bg-card: #ffffff;
  --bg-hover: var(--sage-50);
  --bg-input: var(--stone-100);

  --text-primary: var(--stone-800);
  --text-secondary: var(--stone-500);
  --text-muted: var(--stone-400);

  --border: var(--stone-200);
  --border-hover: var(--sage-200);
  --border-accent: var(--sage-300);
  --border-focus: var(--sage-400);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.03);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.04), 0 2px 4px -2px rgba(0,0,0,0.03);
  --shadow-lg: 0 10px 15px -3px rgba(16,185,129,0.06), 0 4px 6px -4px rgba(16,185,129,0.04);
  --shadow-hover: 0 8px 30px rgba(16,185,129,0.1);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --red-100: #fee2e2;
  --red-700: #b91c1c;
}

/* ── Dark Theme Variables ── */
.dark, :root[data-theme="dark"] {
  --bg: #0f172a;
  --bg-card: #1e293b;
  --bg-hover: rgba(16, 185, 129, 0.04);
  --bg-input: #0f172a;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;

  --border: #334155;
  --border-hover: #475569;
  --border-accent: var(--sage-600);
  --border-focus: var(--sage-500);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.3), 0 2px 4px -2px rgba(0,0,0,0.2);
  --shadow-lg: 0 10px 15px -3px rgba(16,185,129,0.15), 0 4px 6px -4px rgba(16,185,129,0.1);
  --shadow-hover: 0 8px 30px rgba(16,185,129,0.25);

  --red-100: #450a0a;
  --red-700: #fca5a5;

  /* Muted brand colors for dark mode backgrounds */
  --sage-50: rgba(16, 185, 129, 0.05);
  --sage-100: rgba(16, 185, 129, 0.15);
  --sage-200: rgba(16, 185, 129, 0.3);
  --sage-300: rgba(16, 185, 129, 0.45);

  --terra-50: rgba(249, 115, 22, 0.05);
  --terra-100: rgba(249, 115, 22, 0.15);
  --terra-200: rgba(249, 115, 22, 0.3);
  --terra-300: rgba(249, 115, 22, 0.45);
}

.dark .loading-overlay {
  background: rgba(15, 23, 42, 0.85) !important;
}

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

body, .gradio-container, grad-container {
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif !important;
  background: var(--bg) !important;
  color: var(--text-primary) !important;
  -webkit-font-smoothing: antialiased;
}

.gradio-container {
  max-width: 1400px !important;
  margin: 0 auto !important;
  padding: 20px 32px 40px !important;
  background: transparent !important;
}

h1, h2, h3, h4, h5, h6, .app-title, .candidate-name, .metric-value, .score-badge-value {
  font-family: 'Space Grotesk', sans-serif !important;
  letter-spacing: -0.02em;
}

code, pre, .mono {
  font-family: 'JetBrains Mono', monospace !important;
}

.app-header {
  text-align: center;
  padding: 36px 20px 28px;
  position: relative;
  margin-bottom: 8px;
}

.app-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--sage-300), var(--terra-300), var(--sage-300));
  border-radius: 2px;
  background-size: 200% 100%;
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.app-title {
  font-size: 42px;
  font-weight: 800;
  color: var(--sage-600) !important;
  line-height: 1.1;
  margin: 0;
  text-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.app-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  font-weight: 400;
  margin-top: 8px;
}

/* ── Gradio Overrides (Modern & Backward Compatible) ────────────────── */
.gr-box, .gr-form, .panel, .tab-nav, .tabs, .tabitem, .block, .fieldset, .form {
  border-color: var(--border) !important;
  border-radius: var(--radius-md) !important;
  background: transparent !important;
}

input:not([type="checkbox"]):not([type="radio"]), textarea, select, .gr-input, .gr-text-input, .block input, .block textarea {
  background: var(--bg-input) !important;
  border: 1.5px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
  font-family: 'DM Sans', sans-serif !important;
  font-size: 14px !important;
  color: var(--text-primary) !important;
  transition: all 0.2s ease;
}

input:not([type="checkbox"]):not([type="radio"]):focus, textarea:focus, .gr-input:focus-within, .gr-text-input:focus-within, .block input:focus, .block textarea:focus {
  border-color: var(--border-focus) !important;
  box-shadow: 0 0 0 3px var(--sage-100) !important;
  outline: none !important;
}

.gr-box, label, .gr-label, .block-label, span.block-label, label span {
  font-family: 'DM Sans', sans-serif !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  color: var(--text-secondary) !important;
  letter-spacing: 0.02em;
}

.gr-button, button, .gr-btn, .btn {
  font-family: 'DM Sans', sans-serif !important;
  font-weight: 600 !important;
  border-radius: var(--radius-sm) !important;
  transition: all 0.2s ease !important;
  border: 1.5px solid transparent !important;
}

.gr-button-primary, button.gr-button-lg, button.primary, .primary {
  background: linear-gradient(135deg, var(--sage-400), var(--sage-500)) !important;
  color: white !important;
  border: none !important;
  box-shadow: var(--shadow-md) !important;
}

.gr-button-primary:hover, button.primary:hover, .primary:hover {
  transform: translateY(-1px) !important;
  box-shadow: var(--shadow-hover) !important;
  background: linear-gradient(135deg, var(--sage-500), var(--sage-600)) !important;
}

.gr-button-secondary, button.secondary, .secondary {
  background: var(--bg-card) !important;
  color: var(--sage-600) !important;
  border: 1.5px solid var(--sage-200) !important;
}

.gr-button-secondary:hover, button.secondary:hover, .secondary:hover {
  background: var(--sage-50) !important;
  border-color: var(--sage-300) !important;
}

.gr-accordion, .accordion, details {
  border: 1.5px solid var(--border) !important;
  border-radius: var(--radius-md) !important;
  background: var(--bg-card) !important;
}

.gr-checkbox, input[type="checkbox"] {
  accent-color: var(--sage-400) !important;
}

.gr-slider input[type="range"], input[type="range"] {
  accent-color: var(--sage-400) !important;
}

/* Examples styling (formatted as beautiful cards) */
.examples, .examples-table, table.examples, .examples-list {
  background: transparent !important;
  border: none !important;
  margin-top: 8px !important;
}

.examples button, .examples-table tr, table.examples tr, .examples-list button, .gr-examples-button {
  background: var(--bg-card) !important;
  border: 1.5px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
  padding: 10px 14px !important;
  margin: 6px 0 !important;
  font-size: 13px !important;
  text-align: left !important;
  color: var(--text-secondary) !important;
  box-shadow: var(--shadow-sm) !important;
  transition: all 0.2s ease !important;
  cursor: pointer !important;
  display: block !important;
  width: 100% !important;
}

.examples button:hover, .examples-table tr:hover, table.examples tr:hover, .examples-list button:hover, .gr-examples-button:hover {
  border-color: var(--sage-300) !important;
  background: var(--sage-50) !important;
  color: var(--sage-700) !important;
  transform: translateY(-1px) !important;
  box-shadow: var(--shadow-md) !important;
}

.tabs, .tab-nav {
  border-bottom: 1.5px solid var(--border) !important;
}

button.tab-nav {
  font-family: 'DM Sans', sans-serif !important;
  font-size: 14px !important;
  font-weight: 500 !important;
  color: var(--text-secondary) !important;
  border-bottom: 2px solid transparent !important;
  transition: all 0.2s;
}

button.tab-nav.selected {
  color: var(--sage-500) !important;
  border-bottom-color: var(--sage-400) !important;
}

/* ── Progress / Loading ─────────────────────────────────────────────── */
.progress-container {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

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

.progress-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Space Grotesk', sans-serif;
}

.progress-step-label { font-size: 13px; color: var(--text-secondary); font-weight: 400; }

.progress-track {
  width: 100%;
  height: 8px;
  background: var(--stone-200);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--sage-300), var(--sage-400), var(--terra-300), var(--sage-400));
  background-size: 300% 100%;
  animation: progressGlow 2s ease-in-out infinite;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: 20px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4));
  border-radius: 4px;
}

@keyframes progressGlow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.progress-steps {
  display: flex;
  justify-content: space-between;
  margin-top: 16px;
  gap: 4px;
}

.progress-step {
  flex: 1;
  text-align: center;
  padding: 10px 4px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.4s ease;
  position: relative;
}

.progress-step.active {
  color: var(--sage-500);
  background: var(--sage-50);
  transform: scale(1.02);
}

.progress-step.completed { color: var(--sage-500); }

.progress-step .step-icon {
  display: block;
  font-size: 20px;
  margin-bottom: 4px;
  transition: transform 0.3s ease;
}

.progress-step.active .step-icon {
  animation: stepBounce 1s ease-in-out infinite;
}

@keyframes stepBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

/* ── Loading Overlay ──────────────────────────────────────────────────── */
.loading-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  gap: 24px;
  animation: fadeIn 0.3s ease;
  width: 100%;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.loading-ring-container {
  position: relative;
  width: 80px;
  height: 80px;
}

.loading-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 3px solid transparent;
  animation: ringSpin 1.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.loading-ring:nth-child(1) { border-top-color: var(--sage-400); animation-delay: 0s; }
.loading-ring:nth-child(2) { inset: 8px; border-right-color: var(--terra-400); animation-delay: 0.2s; animation-direction: reverse; }
.loading-ring:nth-child(3) { inset: 16px; border-bottom-color: var(--sage-300); animation-delay: 0.4s; }

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

.loading-text {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  animation: textPulse 2s ease-in-out infinite;
}

@keyframes textPulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

.loading-sub { font-size: 13px; color: var(--text-muted); font-weight: 400; }

.loading-particles {
  display: flex;
  gap: 8px;
  align-items: center;
}

.loading-particle {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: particleFloat 1.2s ease-in-out infinite;
}

.loading-particle:nth-child(1) { background: var(--sage-400); animation-delay: 0s; }
.loading-particle:nth-child(2) { background: var(--terra-400); animation-delay: 0.2s; }
.loading-particle:nth-child(3) { background: var(--sage-300); animation-delay: 0.4s; }
.loading-particle:nth-child(4) { background: var(--terra-300); animation-delay: 0.6s; }
.loading-particle:nth-child(5) { background: var(--sage-400); animation-delay: 0.8s; }

@keyframes particleFloat {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.4; }
  50% { transform: translateY(-12px) scale(1.3); opacity: 1; }
}

/* ── Candidate Card ──────────────────────────────────────────────────── */
.candidate-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.candidate-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--sage-300);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 0 4px 4px 0;
}

.candidate-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  background: var(--bg-hover);
}

.candidate-card:hover::before { opacity: 1; }

.candidate-rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--sage-600);
  background: var(--sage-100);
  margin-right: 10px;
  font-family: 'Space Grotesk', sans-serif;
  transition: all 0.2s;
}

.candidate-card:hover .candidate-rank {
  background: var(--sage-200);
  color: var(--sage-700);
}

.candidate-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  transition: color 0.2s;
}

.candidate-card:hover .candidate-name { color: var(--sage-600); }

.candidate-role {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-top: 2px;
}

.candidate-meta {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* ── Score Badge ─────────────────────────────────────────────────────── */
.score-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  font-weight: 700;
  text-align: center;
  transition: all 0.3s ease;
}

.candidate-card:hover .score-badge { transform: scale(1.05); }

.score-badge-value { font-size: 22px; font-weight: 700; line-height: 1; }

.score-badge-label {
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-top: 2px;
  opacity: 0.8;
}

.score-strong {
  background: var(--sage-100) !important;
  color: var(--sage-700) !important;
  border: 1px solid var(--sage-200) !important;
}

.score-good {
  background: #dbeafe !important;
  color: #1d4ed8 !important;
  border: 1px solid #bfdbfe !important;
}

.score-potential {
  background: var(--terra-100) !important;
  color: var(--terra-600) !important;
  border: 1px solid var(--terra-200) !important;
}

.score-weak {
  background: #fee2e2 !important;
  color: #b91c1c !important;
  border: 1px solid #fecaca !important;
}

/* ── Score Bars ──────────────────────────────────────────────────────── */
.score-bar-row {
  display: flex;
  align-items: center;
  margin: 6px 0;
  gap: 8px;
}

.score-bar-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  width: 90px;
  text-align: right;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

.score-bar-track {
  flex: 1;
  height: 6px;
  background: var(--stone-200);
  border-radius: 3px;
  overflow: hidden;
}

.score-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.score-bar-fill::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: 12px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3));
  border-radius: 3px;
}

.candidate-card:hover .score-bar-fill { filter: brightness(1.1); }

.score-bar-pct {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  width: 36px;
  text-align: right;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

/* ── Skill Chips ─────────────────────────────────────────────────────── */
.skill-chip {
  display: inline-block;
  padding: 4px 12px;
  margin: 2px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2px;
  transition: all 0.2s ease;
  cursor: default;
}

.skill-chip.matched {
  background: var(--sage-100);
  color: var(--sage-700);
  border: 1px solid var(--sage-200);
}

.skill-chip.matched:hover {
  background: var(--sage-200);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(16,185,129,0.15);
}

.skill-chip.missing {
  background: #fee2e2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

.skill-chip.missing:hover {
  background: #fecaca;
  transform: translateY(-1px);
}

/* ── Status Badges ───────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: all 0.2s ease;
  cursor: default;
}

.badge:hover { transform: translateY(-1px); }

.badge-listwise {
  background: var(--sage-100);
  color: var(--sage-700);
  border: 1px solid var(--sage-200);
}

.badge-pii {
  background: #dbeafe;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}

.badge-method {
  background: var(--terra-100);
  color: var(--terra-600);
  border: 1px solid var(--terra-200);
}

.badge-turbo {
  background: var(--stone-100);
  color: var(--stone-600);
  border: 1px solid var(--stone-200);
}

/* ── Metric Cards ────────────────────────────────────────────────────── */
.metric-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.metric-card:hover {
  border-color: var(--sage-200);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.metric-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.metric-value {
  font-size: 30px;
  font-weight: 700;
  color: var(--sage-500);
}

/* ── Empty State ─────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.empty-state-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.empty-state-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 400px;
  margin: 0 auto;
}

.empty-state-hint { font-size: 12px; color: var(--text-muted); margin-top: 8px; }

/* ── Rationale Panel ──────────────────────────────────────────────────── */
.rationale-panel { border-left: 4px solid var(--sage-300); }

/* ── About Section ────────────────────────────────────────────────────── */
.about-section { padding: 8px 0; }

.about-section h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px;
}

.about-section h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 28px 0 12px;
}

.about-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
  margin: 16px 0;
}

.about-feature-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.about-feature-card:hover {
  border-color: var(--sage-200);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.about-feature-card strong { font-size: 14px; color: var(--sage-600); }
.about-feature-card span { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }

/* ── Scrollbar ────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--stone-100); border-radius: 3px; }
::-webkit-scrollbar-thumb { background: var(--sage-200); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--sage-300); }

/* ── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .gradio-container { padding: 12px 16px !important; }
  .app-title { font-size: 28px; }
  .candidate-card { padding: 16px; }
  .progress-steps { flex-wrap: wrap; gap: 8px; }
  .progress-step { flex: 0 0 calc(50% - 4px); }
}