:root {
  --bg: #0d1117;
  --surface: #161b22;
  --surfaceB: #1e2530;
  --border: #30363d;
  --primary: #58a6ff;
  --secondary: #3fb950;
  --danger: #f85149;
  --warn: #d29922;
  --text: #e6edf3;
  --textMuted: #8b949e;
  --radius: 14px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

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

body {
  font-family: 'Cairo', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 10%, rgba(88, 166, 255, .08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 90%, rgba(63, 185, 80, .06) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.app {
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px 60px;
}

header {
  text-align: center;
  padding: 48px 0 36px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.logo-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--primary), #a371f7);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  box-shadow: 0 0 24px rgba(88, 166, 255, .4);
}

header h1 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 900;
  background: linear-gradient(90deg, var(--primary) 0%, #a371f7 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

header p {
  color: var(--textMuted);
  font-size: .95rem;
  margin-top: 8px;
}

#statsBar {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.stat-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 6px 18px;
  font-size: .85rem;
  color: var(--textMuted);
}

.stat-chip span {
  color: var(--text);
  font-weight: 700;
}

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px;
}

.tab-btn {
  flex: 1;
  padding: 11px 0;
  font-family: inherit;
  font-size: .95rem;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all .2s;
  background: transparent;
  color: var(--textMuted);
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--primary), #a371f7);
  color: #fff;
  box-shadow: var(--shadow);
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

.card + .card {
  margin-top: 20px;
}

.card h2 {
  font-size: 1.15rem;
  margin-bottom: 20px;
  color: var(--text);
}

.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
  position: relative;
}

.drop-zone:hover,
.drop-zone.dragover {
  border-color: var(--primary);
  background: rgba(88, 166, 255, .05);
}

.drop-zone .drop-icon {
  font-size: 2.8rem;
  margin-bottom: 10px;
}

.drop-zone p {
  color: var(--textMuted);
  font-size: .9rem;
}

.drop-zone input[type=file] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.preview-wrap {
  margin-top: 16px;
  display: none;
  justify-content: center;
}

.preview-wrap.show {
  display: flex;
}

.preview-wrap img {
  max-height: 200px;
  max-width: 100%;
  border-radius: 10px;
  border: 2px solid var(--border);
  object-fit: cover;
}

.preview-grid {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.preview-grid .thumb {
  position: relative;
  width: 90px;
  height: 90px;
  border-radius: 10px;
  border: 2px solid var(--border);
  overflow: hidden;
  flex-shrink: 0;
}

.preview-grid .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.preview-grid .thumb .thumb-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, .55);
  font-size: .65rem;
  color: #fff;
  text-align: center;
  padding: 2px 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.field {
  margin-top: 18px;
}

.field label {
  display: block;
  font-size: .85rem;
  color: var(--textMuted);
  margin-bottom: 7px;
}

.field input {
  width: 100%;
  padding: 11px 15px;
  background: var(--surfaceB);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: inherit;
  font-size: .95rem;
  outline: none;
  transition: border-color .2s;
}

.field input:focus {
  border-color: var(--primary);
}

.btn {
  margin-top: 20px;
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: 10px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all .2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #a371f7);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  filter: brightness(1.15);
  transform: translateY(-1px);
}

.btn-primary:disabled {
  opacity: .5;
  cursor: not-allowed;
}

.btn-danger {
  background: rgba(248, 81, 73, .15);
  color: var(--danger);
  border: 1px solid var(--danger);
}

.btn-danger:hover {
  background: rgba(248, 81, 73, .25);
}

.spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, .3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
  display: none;
}

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

#searchResults,
#indexResult {
  margin-top: 24px;
}

#searchResults {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.result-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--surfaceB);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  transition: transform .15s, border-color .15s;
}

.result-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
}

.result-card img {
  width: 200px;
  height: 200px;
  border-radius: 12px;
  object-fit: cover;
  border: 3px solid var(--surfaceB);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  flex-shrink: 0;
}

.result-info {
  flex: 1;
}

.result-name {
  font-weight: 700;
  font-size: 1rem;
}

.result-meta {
  font-size: .8rem;
  color: var(--textMuted);
  margin-top: 3px;
}

.similarity-bar-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.similarity-bar {
  flex: 1;
  height: 6px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}

.similarity-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--secondary), var(--primary));
  border-radius: 99px;
  transition: width .6s ease;
}

.similarity-pct {
  font-size: .85rem;
  font-weight: 700;
  color: var(--primary);
  min-width: 46px;
}

.badge-top {
  font-size: .7rem;
  background: rgba(63, 185, 80, .15);
  color: var(--secondary);
  border: 1px solid var(--secondary);
  border-radius: 99px;
  padding: 2px 9px;
  margin-right: 8px;
}

.alert {
  padding: 13px 18px;
  border-radius: 10px;
  font-size: .9rem;
  margin-top: 14px;
}

.alert-success {
  background: rgba(63, 185, 80, .1);
  border: 1px solid var(--secondary);
  color: var(--secondary);
}

.alert-error {
  background: rgba(248, 81, 73, .1);
  border: 1px solid var(--danger);
  color: var(--danger);
}

.alert-info {
  background: rgba(88, 166, 255, .1);
  border: 1px solid var(--primary);
  color: var(--primary);
}

#personsGrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.person-tile {
  background: var(--surfaceB);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  text-align: center;
  position: relative;
  transition: transform .2s, box-shadow .2s;
}

.person-tile:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}

.person-tile img {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  object-fit: cover;
  border: 3px solid var(--surfaceB);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  margin-bottom: 12px;
}

.person-tile .p-name {
  font-weight: 700;
  font-size: .9rem;
}

.person-tile .p-id {
  font-size: .75rem;
  color: var(--textMuted);
  margin-top: 2px;
}

.person-tile .p-date {
  font-size: .72rem;
  color: var(--textMuted);
}

.del-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 26px;
  height: 26px;
  background: rgba(248, 81, 73, .15);
  color: var(--danger);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: .85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s;
}

.del-btn:hover {
  background: rgba(248, 81, 73, .3);
}

.empty-state {
  grid-column: 1/-1;
  text-align: center;
  color: var(--textMuted);
  padding: 40px 0;
  font-size: .95rem;
}

.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.pagination-bar .page-info {
  color: var(--textMuted);
  font-size: .85rem;
  text-align: center;
  min-width: 180px;
}

.pagination-bar .btn-page {
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surfaceB);
  color: var(--text);
  font-family: inherit;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
}

.pagination-bar .btn-page:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
}

.pagination-bar .btn-page:disabled {
  opacity: .35;
  cursor: not-allowed;
}

.btn-sort {
  margin: 0;
  width: auto;
  padding: 9px 20px;
  border: 1px solid var(--primary);
  border-radius: 10px;
  background: rgba(88, 166, 255, .1);
  color: var(--primary);
  font-family: inherit;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
}

.btn-sort:hover {
  background: rgba(88, 166, 255, .2);
}

footer {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 0 0;
  color: var(--textMuted);
  font-size: 1.15rem;
  font-weight: 600;
}

@media (max-width: 800px) {
  #searchResults {
    grid-template-columns: 1fr;
  }
}

.card-primary {
  border-color: var(--primary);
  border-width: 2px;
  background: linear-gradient(135deg, var(--surface) 0%, rgba(88, 166, 255, .04) 100%);
}

.highlight-zone {
  border-color: var(--primary);
  background: rgba(88, 166, 255, .03);
}

.btn-large {
  padding: 16px;
  font-size: 1.1rem;
}

.btn-secondary {
  background: var(--surfaceB);
  color: var(--text);
  border: 1px solid var(--border);
  width: auto;
  padding: 9px 18px;
  margin-top: 0;
  font-size: .9rem;
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-toggle {
  flex: 1;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surfaceB);
  color: var(--textMuted);
  font-family: inherit;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
}

.btn-toggle.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

#webSearchResults {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.result-card-web {
  position: relative;
  flex-direction: column;
  align-items: stretch;
  padding: 0;
  overflow: hidden;
}

.result-card-web img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 12px 12px 0 0;
  border: none;
}

.result-card-web .result-info {
  padding: 14px 18px;
}

@media (max-width: 600px) {
  .app {
    padding: 0 16px 40px;
  }

  .card {
    padding: 18px;
  }

  header {
    padding: 30px 0 24px;
  }
}