/* Premium UI layer for Face AI */
:root {
  --sidebar-w: 280px;
  --topbar-h: 72px;
  --bg: #eef3f7;
  --bg-strong: #e4ebf2;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --surface-3: #edf3f8;
  --ink: #111827;
  --muted: #64748b;
  --soft: #94a3b8;
  --line: #d9e2ec;
  --line-strong: #c5d0dc;
  --sidebar-bg: #111820;
  --sidebar-panel: #17212b;
  --sidebar-text: #a7b4c2;
  --sidebar-hover: rgba(255, 255, 255, .07);
  --blue: #2563eb;
  --teal: #0f9f9a;
  --green: #16a34a;
  --amber: #d97706;
  --rose: #e11d48;
  --violet: #7c3aed;
  --cyan: #0891b2;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .07);
  --shadow: 0 12px 30px rgba(15, 23, 42, .09);
  --shadow-lg: 0 22px 50px rgba(15, 23, 42, .14);
  --radius: 8px;
}

* {
  letter-spacing: 0;
}

html {
  min-height: 100%;
}

body {
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .64), rgba(255, 255, 255, 0) 240px),
    var(--bg);
  color: var(--ink);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
}

a {
  color: var(--blue);
}

.fw-600 { font-weight: 600 !important; }
.fw-700 { font-weight: 700 !important; }
.fw-800 { font-weight: 800 !important; }
.fw-900 { font-weight: 900 !important; }

#wrapper {
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-w);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .035), rgba(255, 255, 255, 0) 180px),
    var(--sidebar-bg);
  border-right: 1px solid rgba(255, 255, 255, .07);
  box-shadow: 22px 0 48px rgba(15, 23, 42, .16);
}

.sidebar::before,
.sidebar::after,
.login-page::before,
.login-page::after,
.stat-card::after {
  display: none !important;
}

.sidebar-brand {
  min-height: 86px;
  padding: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.user-avatar,
.mini-avatar,
.profile-avatar {
  background: linear-gradient(135deg, var(--teal), var(--blue));
  border-radius: var(--radius);
  box-shadow: 0 12px 28px rgba(37, 99, 235, .24);
}

.login-logo {
  background: none;
  box-shadow: none;
  border-radius: 0;
}

.brand-title {
  color: #f8fafc;
  font-size: 17px;
  font-weight: 800;
}

.brand-sub,
.user-role {
  color: #8da0b3;
  font-weight: 600;
}

.sidebar-nav {
  padding: 14px;
}

.nav-item {
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--sidebar-text);
  font-weight: 650;
}

.nav-item i {
  font-size: 17px;
}

.nav-item:hover {
  color: #f8fafc;
  background: var(--sidebar-hover);
  border-color: rgba(255, 255, 255, .08);
}

.nav-item.active {
  color: #ffffff;
  background: linear-gradient(135deg, rgba(15, 159, 154, .22), rgba(37, 99, 235, .18));
  border-color: rgba(125, 211, 252, .22);
  box-shadow: inset 3px 0 0 var(--teal);
}

.sidebar-footer {
  margin: 14px;
  padding: 12px;
  background: var(--sidebar-panel);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius);
}

.user-info {
  min-width: 0;
}

.user-name {
  max-width: 145px;
  color: #f8fafc;
}

.logout-btn {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
}

.main-content {
  margin-left: var(--sidebar-w);
}

.topbar {
  height: var(--topbar-h);
  padding: 0 30px;
  background: rgba(255, 255, 255, .86);
  border-bottom: 1px solid rgba(203, 213, 225, .72);
  backdrop-filter: blur(16px);
  box-shadow: 0 10px 28px rgba(15, 23, 42, .05);
}

.sidebar-toggle {
  width: 40px;
  height: 40px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
}

.sidebar-toggle:hover {
  background: var(--surface-3);
  border-color: var(--line-strong);
}

.page-title {
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
}

.topbar .badge,
.badge {
  font-weight: 700;
}

.content-area {
  width: 100%;
  max-width: 1540px;
  padding: 30px;
}

.section-title {
  color: #475569;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.gcard,
.card.gcard {
  background: rgba(255, 255, 255, .96);
  border: 1px solid rgba(203, 213, 225, .82);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.gcard:hover {
  box-shadow: 0 16px 34px rgba(15, 23, 42, .08);
}

.gcard-header,
.card-header.gcard-header {
  padding: 15px 18px;
  background: linear-gradient(180deg, #ffffff, #f7fafc);
  border-bottom: 1px solid var(--line);
  color: #172033;
  font-size: 14px;
  font-weight: 800;
}

.gcard-header i {
  color: var(--teal);
}

.card-body {
  color: var(--ink);
}

.stat-card {
  min-height: 132px;
  padding: 20px;
  align-items: center;
  color: var(--ink);
  background: var(--surface) !important;
  border: 1px solid rgba(203, 213, 225, .92);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: var(--blue);
}

.stat-card.blue::before { background: var(--blue); }
.stat-card.green::before { background: var(--green); }
.stat-card.orange::before { background: var(--amber); }
.stat-card.purple::before { background: var(--violet); }
.stat-card.teal::before { background: var(--teal); }
.stat-card.pink::before { background: var(--rose); }

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.stat-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius);
  background: #edf6f8;
  color: var(--teal);
  backdrop-filter: none;
}

.stat-card.blue .stat-icon { background: #eaf1ff; color: var(--blue); }
.stat-card.green .stat-icon { background: #eaf8ef; color: var(--green); }
.stat-card.orange .stat-icon { background: #fff4e5; color: var(--amber); }
.stat-card.purple .stat-icon { background: #f2ecff; color: var(--violet); }
.stat-card.teal .stat-icon { background: #e6f7f6; color: var(--teal); }
.stat-card.pink .stat-icon { background: #fff0f4; color: var(--rose); }

.stat-value {
  color: var(--ink);
  font-size: 31px;
  letter-spacing: 0;
}

.stat-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.usecase-card {
  min-height: 178px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid rgba(203, 213, 225, .92);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.usecase-card:hover {
  transform: translateY(-3px);
  border-color: rgba(15, 159, 154, .45);
  box-shadow: var(--shadow);
}

.usecase-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--blue), var(--amber));
  opacity: .88;
}

.usecase-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  box-shadow: none !important;
}

.usecase-icon.blue { background: #eaf1ff; color: var(--blue); }
.usecase-icon.green { background: #eaf8ef; color: var(--green); }
.usecase-icon.orange { background: #fff4e5; color: var(--amber); }
.usecase-icon.purple { background: #f2ecff; color: var(--violet); }
.usecase-icon.teal { background: #e6f7f6; color: var(--teal); }

.usecase-title {
  color: var(--ink);
  font-size: 15px;
  font-weight: 800;
}

.usecase-desc {
  color: var(--muted);
  font-size: 13px;
}

.usecase-arrow {
  color: #b7c3d0;
}

.upload-zone {
  padding: 36px 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .72), rgba(248, 250, 252, .95)),
    var(--surface-2);
  border: 1.5px dashed #a9bac9;
  border-radius: var(--radius);
}

.upload-zone:hover,
.upload-zone.dragover {
  background: #ecf8f7;
  border-color: var(--teal);
  box-shadow: inset 0 0 0 1px rgba(15, 159, 154, .18);
}

.upload-zone i {
  color: var(--teal);
}

.upload-zone p {
  color: var(--ink);
  font-weight: 800;
}

.upload-zone small {
  color: var(--muted);
}

.preview-area img,
.result-image {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #f8fafc;
}

.result-success,
.result-error,
.result-warning,
.result-info {
  border-radius: var(--radius);
  font-weight: 700;
}

.result-success { background: #eefbf2; color: #166534; border-color: #bbf7d0; }
.result-error { background: #fff1f2; color: #9f1239; border-color: #fecdd3; }
.result-warning { background: #fff8e8; color: #92400e; border-color: #fde68a; }
.result-info { background: #eef6ff; color: #1d4ed8; border-color: #bfdbfe; }

.match-card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

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

.match-row {
  border-color: #e9eef4;
}

.conf-badge,
.activity-badge {
  border-radius: 999px;
  font-weight: 800;
}

.conf-badge.high { background: #dcfce7; color: #166534; }
.conf-badge.mid { background: #fef3c7; color: #92400e; }
.conf-badge.low { background: #ffe4e6; color: #9f1239; }

.activity-badge.login { background: #ecfdf5; color: #047857; }
.activity-badge.logout { background: #fff1f2; color: #be123c; }
.activity-badge.face_add { background: #eaf1ff; color: #1d4ed8; }
.activity-badge.face_verify { background: #e6f7f6; color: #0f766e; }
.activity-badge.face_search { background: #f2ecff; color: #6d28d9; }
.activity-badge.helmet_detect { background: #fff4e5; color: #b45309; }
.activity-badge.face_detect { background: #fff0f4; color: #be123c; }
.activity-badge.face_upload_failed { background: #fee2e2; color: #991b1b; }

.table {
  margin-bottom: 0;
  color: var(--ink);
  font-size: 13.5px;
}

.table th {
  padding: 13px 16px;
  color: #536579;
  background: #f7fafc;
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  font-weight: 900;
}

.table td {
  padding: 14px 16px;
  border-color: #e9eef4;
}

.table-hover tbody tr:hover {
  background: #f5faf9;
}

code {
  color: #0f766e;
  background: #e8f7f6;
  border: 1px solid #c8e9e7;
  padding: 2px 7px;
  border-radius: 6px;
}

.empty-state {
  padding: 54px 24px;
  color: var(--muted);
}

.empty-state i {
  color: var(--teal);
  opacity: .45;
}

.empty-state p {
  color: var(--muted);
  font-weight: 700;
}

.loading-text {
  color: var(--muted);
  font-weight: 700;
}

.detection-result-card {
  border-radius: var(--radius);
}

.detect-option-card {
  min-height: 104px;
  background: var(--surface);
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  font-weight: 800;
}

.detect-option-card:hover,
.detect-option-card.selected {
  color: var(--teal);
  background: #ecf8f7;
  border-color: var(--teal);
  box-shadow: 0 0 0 4px rgba(15, 159, 154, .11);
}

.log-thumb {
  border-radius: var(--radius);
}

.btn {
  min-height: 36px;
  border-radius: var(--radius);
  font-weight: 800;
  font-size: 13.5px;
}

.btn-sm {
  min-height: 32px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--teal));
  border: 0;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8, #0f766e);
  box-shadow: 0 12px 24px rgba(37, 99, 235, .24);
}

.btn-success {
  background: linear-gradient(135deg, var(--green), var(--teal));
  border: 0;
}

.btn-danger {
  background: linear-gradient(135deg, var(--rose), #b91c1c);
  border: 0;
}

.btn-outline-secondary,
.btn-outline-primary,
.btn-outline-info,
.btn-outline-warning,
.btn-outline-success,
.btn-outline-danger {
  background: #ffffff;
  border-color: var(--line-strong);
  color: #334155;
}

.btn-outline-primary:hover,
.btn-outline-info:hover {
  background: #ecf8f7;
  border-color: var(--teal);
  color: var(--teal);
}

.form-control,
.form-select {
  min-height: 42px;
  background: #ffffff;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink);
  font-weight: 600;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 4px rgba(15, 159, 154, .13);
}

.form-label {
  color: #334155;
  font-size: 12.5px;
  font-weight: 800;
}

.modal-content {
  border: 1px solid var(--line) !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow-lg);
}

.modal-header,
.modal-footer {
  background: #f8fafc;
}

.login-page {
  min-height: 100vh;
  padding: 28px;
  background:
    linear-gradient(120deg, rgba(17, 24, 32, .92), rgba(17, 24, 32, .72)),
    linear-gradient(135deg, #12343b 0%, #182533 46%, #2a2438 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  width: 100%;
  max-width: 470px;
  padding: 34px;
  background: rgba(255, 255, 255, .95);
  border: 1px solid rgba(255, 255, 255, .54);
  border-radius: var(--radius);
  box-shadow: 0 32px 80px rgba(0, 0, 0, .28);
}

.login-header {
  margin-bottom: 24px;
}

.login-logo img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.login-header h2 {
  color: var(--ink);
  font-size: 25px;
  font-weight: 900;
}

.login-header p {
  color: var(--muted);
  font-weight: 650;
}

.panel-toggle {
  background: #edf3f8;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.panel-btn {
  border-radius: 6px;
  color: #526173;
  font-weight: 800;
}

.panel-btn.active {
  color: var(--teal);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.input-icon i {
  color: var(--teal);
}

.btn-login {
  min-height: 46px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  border-radius: var(--radius);
  font-weight: 900;
}

.btn-login:hover {
  background: linear-gradient(135deg, #1d4ed8, #0f766e);
}

.demo-hint {
  background: #f7fafc;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.profile-info {
  background: #f7fafc;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.profile-row {
  border-color: var(--line);
}

.profile-row > i {
  color: var(--teal);
}

.fdb-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 22px;
}

.fdb-stats {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.fdb-stat {
  min-height: 38px;
  padding: 8px 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font-weight: 800;
  box-shadow: var(--shadow-sm);
}

.fdb-stat i {
  color: var(--teal);
}

.fdb-search-wrap {
  position: relative;
  min-width: 240px;
}

.fdb-search-wrap i {
  position: absolute;
  top: 50%;
  left: 12px;
  transform: translateY(-50%);
  color: var(--teal);
}

.fdb-search {
  width: 100%;
  min-height: 38px;
  padding: 8px 12px 8px 36px;
  background: #ffffff;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink);
  font-weight: 700;
}

.fdb-search:focus {
  border-color: var(--teal);
  outline: 0;
  box-shadow: 0 0 0 4px rgba(15, 159, 154, .13);
}

.fdb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 18px;
}

.fcard {
  position: relative;
  overflow: hidden;
  background: #101820;
  border: 1px solid rgba(15, 23, 42, .12);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.fcard:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.fcard-photo {
  position: relative;
  width: 100%;
  padding-top: 133%;
  overflow: hidden;
  background: #111820;
}

.fcard-photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform .38s ease;
}

.fcard:hover .fcard-photo img {
  transform: scale(1.045);
}

.fcard-fid,
.face-id-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  bottom: auto;
  left: auto;
  max-width: calc(100% - 58px);
  overflow: hidden;
  text-overflow: ellipsis;
  background: rgba(17, 24, 32, .78);
  color: #c7f4ef;
  border: 1px solid rgba(199, 244, 239, .22);
  border-radius: 999px;
  padding: 4px 9px;
  font-size: 10px;
  font-weight: 900;
}

.fcard-num {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--teal);
  color: #ffffff;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 900;
}

.fcard-overlay {
  position: absolute;
  inset: auto 0 0;
  padding: 44px 13px 13px;
  background: linear-gradient(to top, rgba(10, 16, 22, .96), rgba(10, 16, 22, .62) 62%, transparent);
}

.fcard-name {
  margin-bottom: 4px;
  overflow: hidden;
  color: #f8fafc;
  font-size: 14px;
  font-weight: 900;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.fcard-owner {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 6px;
  color: #99f6e4;
  font-size: 11px;
  font-weight: 800;
}

.fcard-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 8px;
}

.fcard-tag {
  max-width: 100%;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 7px;
  overflow: hidden;
  color: #dbe7f2;
  background: rgba(255, 255, 255, .11);
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.fcard-extra {
  max-height: 0;
  overflow: hidden;
  transition: max-height .24s ease;
}

.fcard:hover .fcard-extra {
  max-height: 84px;
}

.fcard-extra-row {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 4px;
  color: #bdd0df;
  font-size: 11px;
}

.fcard-del {
  width: 100%;
  min-height: 32px;
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: rgba(225, 29, 72, .9);
  color: #ffffff;
  border: 0;
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 900;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .2s ease, transform .2s ease, background .2s ease;
}

.fcard:hover .fcard-del {
  opacity: 1;
  transform: translateY(0);
}

.fcard-del:hover {
  background: #be123c;
}

.fdb-empty,
.fdb-no-results {
  grid-column: 1 / -1;
  padding: 54px 24px;
  background: #ffffff;
  border: 1.5px dashed var(--line-strong);
  border-radius: var(--radius);
  color: var(--muted);
  text-align: center;
}

.fdb-empty i,
.fdb-no-results i {
  color: var(--teal);
}

.alert {
  border-radius: var(--radius);
  font-weight: 700;
}

@media (max-width: 992px) {
  .sidebar {
    transform: translateX(-100%);
  }

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

  .main-content {
    margin-left: 0;
  }
}

@media (max-width: 768px) {
  .topbar {
    height: auto;
    min-height: var(--topbar-h);
    padding: 14px 18px;
  }

  .content-area {
    padding: 18px;
  }

  .stat-card {
    min-height: 116px;
    padding: 16px;
  }

  .stat-icon {
    width: 42px;
    height: 42px;
    font-size: 21px;
  }

  .stat-value {
    font-size: 25px;
  }

  .login-page {
    padding: 18px;
  }

  .login-card {
    padding: 26px 20px;
  }

  .fdb-search-wrap {
    min-width: 100%;
  }
}