/* ═══════════════════════════════════════════════════════════
   PyResearch Vision Platform v1.0 - Main Stylesheet
   Brand: PyResearch | Deep Purple → Blue gradient theme
   ═══════════════════════════════════════════════════════════ */

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

/* ─── CSS Variables ────────────────────────────────────────── */
:root {
  --bg-base:        #07080d;
  --bg-surface:     #0d0f1a;
  --bg-elevated:    #141628;
  --bg-overlay:     #1a1d30;
  --border:         #252840;
  --border-bright:  #323660;

  /* PyResearch brand gradient: magenta-purple → navy-blue */
  --brand-from:     #a0145a;
  --brand-mid:      #6b1fa8;
  --brand-to:       #1b3a8c;
  --gradient:       linear-gradient(135deg, #a0145a 0%, #6b1fa8 50%, #1b3a8c 100%);
  --gradient-h:     linear-gradient(135deg, #c4186e 0%, #8b2fd4 50%, #2352b8 100%);
  --glow:           rgba(107, 31, 168, 0.25);
  --glow-strong:    rgba(160, 20, 90, 0.3);

  --accent:         #b94fc8;   /* purple-pink highlight */
  --accent-blue:    #4a7de8;   /* blue highlight */
  --green:          #00e887;
  --red:            #ff4466;
  --yellow:         #ffc107;
  --orange:         #ff8c42;

  /* All text white-based */
  --text-primary:   #ffffff;
  --text-secondary: #c8cce8;
  --text-muted:     #6672a0;

  --font-display:   'Rajdhani', sans-serif;
  --font-mono:      'JetBrains Mono', monospace;
  --font-body:      'Inter', sans-serif;

  --radius:         6px;
  --radius-lg:      10px;
  --sidebar-w:      250px;
  --transition:     0.18s ease;
}

/* ─── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; }
body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ─── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--brand-mid); }

/* ─── Layout ───────────────────────────────────────────────── */
.app-shell { display: flex; min-height: 100vh; }

/* ─── Sidebar ──────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
}

.sidebar-logo {
  padding: 18px 20px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img-wrap {
  width: 40px; height: 40px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  background: #000;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 16px var(--glow-strong);
  border: 1px solid rgba(160,20,90,0.4);
}

.logo-img-wrap img {
  width: 100%; height: 100%;
  object-fit: contain;
}

.logo-text-wrap { min-width: 0; }

.logo-brand {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 1.5px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.logo-version {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.sidebar-nav { flex: 1; padding: 12px 0; overflow-y: auto; }

.nav-section-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 8px 20px 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: all var(--transition);
  position: relative;
  cursor: pointer;
}

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

.nav-item.active {
  color: #fff;
  background: linear-gradient(90deg, rgba(107,31,168,0.2) 0%, transparent 100%);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--gradient);
  border-radius: 0 2px 2px 0;
  box-shadow: 0 0 10px var(--glow);
}

.nav-item .nav-icon { width: 18px; text-align: center; font-size: 15px; flex-shrink: 0; }

.sidebar-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
}

.admin-badge { display: flex; align-items: center; gap: 10px; }

.admin-avatar {
  width: 32px; height: 32px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 700;
  flex-shrink: 0;
  box-shadow: 0 0 10px var(--glow);
}

.admin-info { flex: 1; min-width: 0; }
.admin-name { font-size: 13px; font-weight: 600; color: #fff; }
.admin-role { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); letter-spacing: 0.5px; }

.btn-logout {
  background: none; border: none;
  color: var(--text-muted); cursor: pointer; font-size: 16px; padding: 4px;
  transition: color var(--transition);
}
.btn-logout:hover { color: var(--red); }

/* ─── Main Content ─────────────────────────────────────────── */
.main-content { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; min-height: 100vh; }

.topbar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 0 28px;
  height: 56px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  position: sticky; top: 0; z-index: 50;
}

/* Topbar gradient accent line */
.topbar::after {
  content: '';
  position: absolute;
  bottom: 0; left: var(--sidebar-w); right: 0;
  height: 1px;
  background: var(--gradient);
  opacity: 0.5;
}

.page-title {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 700; letter-spacing: 0.5px;
  color: #fff;
  display: flex; align-items: center; gap: 8px;
}

.topbar-actions { display: flex; align-items: center; gap: 10px; }
.page-content { padding: 28px; flex: 1; }

/* ─── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 7px; padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 13px; font-weight: 600; font-family: var(--font-body);
  cursor: pointer; border: 1px solid transparent;
  transition: all var(--transition);
  text-decoration: none; white-space: nowrap; color: #fff;
}

.btn-primary {
  background: var(--gradient);
  color: #fff; border: none;
  box-shadow: 0 2px 12px var(--glow);
}
.btn-primary:hover {
  background: var(--gradient-h);
  box-shadow: 0 4px 20px var(--glow-strong);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-overlay);
  color: var(--text-secondary);
  border-color: var(--border-bright);
}
.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--brand-mid);
  color: #fff;
}

.btn-danger { background: transparent; color: var(--red); border-color: var(--red); }
.btn-danger:hover { background: rgba(255,68,102,0.12); }

.btn-success { background: var(--green); color: #000; border-color: var(--green); }
.btn-success:hover { background: #00ff99; }

.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 15px; }
.btn-icon { padding: 7px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ─── Cards ────────────────────────────────────────────────── */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: var(--bg-elevated);
}

.card-title {
  font-family: var(--font-display);
  font-size: 15px; font-weight: 700; letter-spacing: 0.5px;
  color: #fff; display: flex; align-items: center; gap: 8px;
}

.card-body { padding: 20px; }

/* ─── Stat Cards ───────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px; margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px; position: relative; overflow: hidden;
  transition: all var(--transition);
}

.stat-card:hover { border-color: var(--brand-mid); transform: translateY(-2px); box-shadow: 0 8px 24px var(--glow); }

.stat-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--gradient);
}

.stat-card.green::before { background: linear-gradient(90deg, var(--green), #00a86b); }
.stat-card.red::before   { background: linear-gradient(90deg, var(--red), #cc2244); }
.stat-card.yellow::before{ background: linear-gradient(90deg, var(--yellow), #e6950a); }
.stat-card.orange::before{ background: linear-gradient(90deg, var(--orange), #e65c00); }

/* Subtle gradient glow on stat cards */
.stat-card::after {
  content: '';
  position: absolute; bottom: 0; right: 0;
  width: 80px; height: 80px;
  background: radial-gradient(circle, rgba(107,31,168,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.stat-icon { font-size: 24px; margin-bottom: 12px; display: block; }
.stat-value { font-family: var(--font-mono); font-size: 28px; font-weight: 700; color: #fff; line-height: 1; }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.5px; }

/* ─── Tables ───────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead tr { background: var(--bg-overlay); border-bottom: 1px solid var(--border); }
th {
  padding: 10px 14px; text-align: left;
  font-size: 11px; font-weight: 600; letter-spacing: 1px;
  text-transform: uppercase; color: var(--text-muted);
  font-family: var(--font-mono); white-space: nowrap;
}
tbody tr { border-bottom: 1px solid var(--border); transition: background var(--transition); }
tbody tr:hover { background: var(--bg-elevated); }
tbody tr:last-child { border-bottom: none; }
td { padding: 12px 14px; font-size: 13.5px; color: var(--text-primary); vertical-align: middle; }
.td-muted { color: var(--text-secondary); font-size: 12px; }
.td-mono  { font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); }

/* ─── Badges ───────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; border-radius: 20px;
  font-size: 11px; font-weight: 600; font-family: var(--font-mono); letter-spacing: 0.3px;
}
.badge-green  { background: rgba(0,232,135,0.1); color: var(--green); border: 1px solid rgba(0,232,135,0.25); }
.badge-red    { background: rgba(255,68,102,0.1); color: var(--red);   border: 1px solid rgba(255,68,102,0.25); }
.badge-blue   { background: rgba(74,125,232,0.1); color: #7aabff;     border: 1px solid rgba(74,125,232,0.25); }
.badge-gray   { background: rgba(100,110,160,0.15); color: var(--text-muted); border: 1px solid var(--border); }
.badge-yellow { background: rgba(255,193,7,0.1); color: var(--yellow); border: 1px solid rgba(255,193,7,0.25); }
.badge-purple { background: rgba(107,31,168,0.2); color: #d080ff; border: 1px solid rgba(107,31,168,0.35); }

/* ─── Forms ────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label {
  display: block; font-size: 12px; font-weight: 600; color: var(--text-secondary);
  margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; font-family: var(--font-mono);
}
.form-control {
  width: 100%; background: var(--bg-overlay); border: 1px solid var(--border);
  color: #fff; padding: 9px 12px; border-radius: var(--radius);
  font-size: 13.5px; font-family: var(--font-body); outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus { border-color: var(--brand-mid); box-shadow: 0 0 0 2px rgba(107,31,168,0.2); }
.form-control::placeholder { color: var(--text-muted); }
select.form-control option { background: var(--bg-elevated); color: #fff; }
textarea.form-control { resize: vertical; min-height: 80px; }
.form-hint { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
.form-row   { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* ─── Modal ────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  z-index: 999; display: flex; align-items: center; justify-content: center;
  padding: 20px; opacity: 0; transition: opacity 0.2s ease; pointer-events: none;
}
.modal-backdrop.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-lg);
  width: 100%; max-width: 560px; max-height: 90vh; overflow-y: auto;
  box-shadow: 0 24px 60px rgba(0,0,0,0.6), 0 0 40px var(--glow);
  transform: translateY(20px); transition: transform 0.2s ease;
}
.modal-backdrop.open .modal { transform: translateY(0); }
.modal-header {
  padding: 18px 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-elevated);
}
/* Gradient top border on modals */
.modal-header::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--gradient); border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.modal { position: relative; }
.modal-title { font-family: var(--font-display); font-size: 17px; font-weight: 700; color: #fff; display: flex; align-items: center; gap: 8px; }
.modal-close {
  background: none; border: none; color: var(--text-muted); cursor: pointer;
  font-size: 20px; line-height: 1; padding: 2px 6px; border-radius: var(--radius);
  transition: all var(--transition);
}
.modal-close:hover { background: var(--bg-overlay); color: #fff; }
.modal-body { padding: 20px; }
.modal-footer {
  padding: 14px 20px; border-top: 1px solid var(--border);
  display: flex; justify-content: flex-end; gap: 10px;
}

/* ─── Toast ────────────────────────────────────────────────── */
.toast-container {
  position: fixed; bottom: 24px; right: 24px;
  z-index: 9999; display: flex; flex-direction: column; gap: 8px; pointer-events: none;
}
.toast {
  background: var(--bg-elevated); border: 1px solid var(--border-bright);
  border-radius: var(--radius-lg); padding: 12px 16px;
  display: flex; align-items: center; gap: 10px; font-size: 13.5px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4), 0 0 20px var(--glow);
  pointer-events: all; animation: slideIn 0.2s ease;
  min-width: 280px; max-width: 380px; color: #fff;
}
.toast.success { border-left: 3px solid var(--green); }
.toast.error   { border-left: 3px solid var(--red); }
.toast.info    { border-left: 3px solid var(--brand-mid); }
.toast.warning { border-left: 3px solid var(--yellow); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ─── Empty State ──────────────────────────────────────────── */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-secondary); }
.empty-state .empty-icon { font-size: 48px; margin-bottom: 12px; opacity: 0.4; }
.empty-state .empty-title { font-family: var(--font-display); font-size: 16px; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
.empty-state .empty-desc { font-size: 13px; color: var(--text-muted); margin-bottom: 20px; }

/* ─── Spinner ──────────────────────────────────────────────── */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--brand-mid);
  border-radius: 50%;
  animation: spin 0.7s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── File Upload ──────────────────────────────────────────── */
.file-drop {
  border: 2px dashed var(--border-bright);
  border-radius: var(--radius-lg); padding: 36px; text-align: center;
  cursor: pointer; transition: all var(--transition); background: var(--bg-overlay);
}
.file-drop:hover, .file-drop.dragover {
  border-color: var(--brand-mid); background: rgba(107,31,168,0.1);
  box-shadow: 0 0 20px var(--glow);
}
.file-drop .upload-icon { font-size: 32px; margin-bottom: 10px; opacity: 0.7; }
.file-drop .upload-text { font-size: 14px; color: var(--text-secondary); }
.file-drop .upload-hint { font-size: 12px; color: var(--text-muted); margin-top: 6px; }

/* ─── Progress Bar ─────────────────────────────────────────── */
.progress-bar { height: 4px; background: var(--bg-overlay); border-radius: 2px; overflow: hidden; margin-top: 8px; }
.progress-fill {
  height: 100%; background: var(--gradient);
  border-radius: 2px; transition: width 0.3s ease;
  box-shadow: 0 0 8px var(--glow);
}

/* ─── Video ────────────────────────────────────────────────── */
.video-container {
  position: relative; background: #000; border-radius: var(--radius-lg);
  overflow: hidden; aspect-ratio: 16/9; border: 1px solid var(--border);
}
.video-feed { width: 100%; height: 100%; object-fit: contain; display: block; }
.video-overlay { position: absolute; top: 10px; left: 10px; display: flex; gap: 6px; flex-wrap: wrap; }
.video-overlay-item {
  background: rgba(0,0,0,0.7); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px; padding: 3px 8px; font-size: 11px;
  font-family: var(--font-mono); color: var(--green); backdrop-filter: blur(4px);
}
.live-dot {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--red); margin-right: 4px; animation: pulse 1.5s ease infinite;
}
@keyframes pulse { 0%,100% { opacity:1; transform:scale(1); } 50% { opacity:0.5; transform:scale(0.8); } }

/* ─── Camera Grid ──────────────────────────────────────────── */
.camera-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }

/* ─── PyResearch Brand Footer Strip ────────────────────────── */
.brand-watermark {
  text-align: center;
  padding: 6px 0 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
  border-top: 1px solid var(--border);
}
.brand-watermark span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

/* ─── Utility ──────────────────────────────────────────────── */
.text-accent  { color: var(--accent); }
.text-green   { color: var(--green); }
.text-red     { color: var(--red); }
.text-yellow  { color: var(--yellow); }
.text-muted   { color: var(--text-muted); }
.text-mono    { font-family: var(--font-mono); }
.text-white   { color: #fff; }
.gradient-text { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.gap-8        { gap: 8px; }
.gap-12       { gap: 12px; }
.gap-16       { gap: 16px; }
.mt-4  { margin-top: 4px; }  .mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; } .mb-24 { margin-bottom: 24px; }
.w-full { width: 100%; }
.divider { height: 1px; background: var(--border); margin: 16px 0; }

/* ─── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .page-content { padding: 16px; }
}

/* ═══════════════════════════════════════════════════════════
   LIGHT THEME — [data-theme="light"]
   Applied on <html data-theme="light">
   ═══════════════════════════════════════════════════════════ */

[data-theme="light"] {
  --bg-base:        #f4f5fb;
  --bg-surface:     #ffffff;
  --bg-elevated:    #eceef8;
  --bg-overlay:     #e4e7f5;
  --border:         #cdd2ea;
  --border-bright:  #b5bcd8;

  /* Brand gradient stays the same — only backgrounds/text shift */
  --glow:           rgba(107, 31, 168, 0.14);
  --glow-strong:    rgba(160, 20, 90,  0.18);

  --text-primary:   #0c0d1c;
  --text-secondary: #3a3f64;
  --text-muted:     #7880a8;
}

/* ── Light: body & scrollbar ── */
[data-theme="light"] body {
  background: var(--bg-base);
  color: var(--text-primary);
}
[data-theme="light"] ::-webkit-scrollbar-track { background: var(--bg-base); }
[data-theme="light"] ::-webkit-scrollbar-thumb { background: var(--border-bright); }

/* ── Light: sidebar ── */
[data-theme="light"] .sidebar {
  background: #ffffff;
  border-right-color: var(--border);
  box-shadow: 2px 0 16px rgba(0,0,0,.06);
}
[data-theme="light"] .nav-item { color: var(--text-secondary); }
[data-theme="light"] .nav-item:hover { background: var(--bg-overlay); color: var(--text-primary); }
[data-theme="light"] .nav-item.active {
  background: linear-gradient(90deg, rgba(107,31,168,.10) 0%, transparent 100%);
  color: var(--text-primary);
}
[data-theme="light"] .nav-section-label { color: var(--text-muted); }
[data-theme="light"] .admin-name  { color: var(--text-primary); }
[data-theme="light"] .admin-role  { color: var(--text-muted); }
[data-theme="light"] .brand-watermark { color: var(--text-muted); border-top-color: var(--border); }

/* ── Light: topbar ── */
[data-theme="light"] .topbar {
  background: #ffffff;
  border-bottom-color: var(--border);
  box-shadow: 0 1px 8px rgba(0,0,0,.06);
}
[data-theme="light"] .page-title { color: var(--text-primary); }

/* ── Light: cards ── */
[data-theme="light"] .card {
  background: #ffffff;
  border-color: var(--border);
  box-shadow: 0 2px 12px rgba(0,0,0,.05);
}
[data-theme="light"] .card-header {
  background: var(--bg-elevated);
  border-bottom-color: var(--border);
}
[data-theme="light"] .card-title { color: var(--text-primary); }

/* ── Light: stat cards ── */
[data-theme="light"] .stat-card {
  background: #ffffff;
  border-color: var(--border);
  box-shadow: 0 2px 10px rgba(0,0,0,.05);
}
[data-theme="light"] .stat-value { color: var(--text-primary); }
[data-theme="light"] .stat-label { color: var(--text-muted); }

/* ── Light: tables ── */
[data-theme="light"] thead tr  { background: var(--bg-elevated); border-bottom-color: var(--border); }
[data-theme="light"] tbody tr  { border-bottom-color: var(--border); }
[data-theme="light"] tbody tr:hover { background: var(--bg-overlay); }
[data-theme="light"] th  { color: var(--text-muted); }
[data-theme="light"] td  { color: var(--text-primary); }
[data-theme="light"] .td-muted { color: var(--text-secondary); }
[data-theme="light"] .td-mono  { color: var(--text-secondary); }

/* ── Light: forms ── */
[data-theme="light"] .form-control {
  background: #ffffff;
  border-color: var(--border);
  color: var(--text-primary);
  box-shadow: 0 1px 4px rgba(0,0,0,.05);
}
[data-theme="light"] .form-control:focus {
  border-color: var(--brand-mid);
  box-shadow: 0 0 0 3px rgba(107,31,168,.12);
}
[data-theme="light"] .form-control::placeholder { color: var(--text-muted); }
[data-theme="light"] select.form-control option  { background: #fff; color: var(--text-primary); }
[data-theme="light"] .form-label { color: var(--text-secondary); }
[data-theme="light"] .form-hint  { color: var(--text-muted); }

/* ── Light: modals ── */
[data-theme="light"] .modal {
  background: #ffffff;
  border-color: var(--border);
  box-shadow: 0 24px 60px rgba(0,0,0,.16);
}
[data-theme="light"] .modal-header { background: var(--bg-elevated); border-bottom-color: var(--border); }
[data-theme="light"] .modal-title  { color: var(--text-primary); }
[data-theme="light"] .modal-close  { color: var(--text-muted); }
[data-theme="light"] .modal-close:hover { background: var(--bg-overlay); color: var(--text-primary); }
[data-theme="light"] .modal-footer { border-top-color: var(--border); }
[data-theme="light"] .modal-backdrop { background: rgba(0,0,0,.45); }

/* ── Light: buttons (secondary) ── */
[data-theme="light"] .btn-secondary {
  background: var(--bg-overlay);
  color: var(--text-secondary);
  border-color: var(--border-bright);
}
[data-theme="light"] .btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--brand-mid);
  color: var(--text-primary);
}

/* ── Light: toast ── */
[data-theme="light"] .toast {
  background: #ffffff;
  border-color: var(--border);
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  color: var(--text-primary);
}

/* ── Light: file drop ── */
[data-theme="light"] .file-drop { background: var(--bg-overlay); border-color: var(--border-bright); }
[data-theme="light"] .file-drop:hover { background: rgba(107,31,168,.06); }
[data-theme="light"] .file-drop .upload-text { color: var(--text-secondary); }
[data-theme="light"] .file-drop .upload-hint { color: var(--text-muted); }

/* ── Light: empty state ── */
[data-theme="light"] .empty-state        { color: var(--text-secondary); }
[data-theme="light"] .empty-state .empty-title { color: var(--text-secondary); }
[data-theme="light"] .empty-state .empty-desc  { color: var(--text-muted); }

/* ── Light: theme-toggle button ── */
.theme-toggle-btn {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 10px; cursor: pointer;
  background: var(--bg-overlay); border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 16px; flex-shrink: 0;
  transition: all 0.2s ease; margin: 8px 20px 12px;
}
.theme-toggle-btn:hover { border-color: var(--brand-mid); color: var(--text-primary); background: var(--bg-elevated); }

/* Full-width in sidebar */
.theme-toggle-row {
  padding: 0 14px 12px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.theme-pill {
  display: flex; align-items: center; gap: 0;
  background: var(--bg-overlay); border: 1px solid var(--border);
  border-radius: 10px; padding: 4px; overflow: hidden;
}
.theme-pill-btn {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 5px;
  padding: 6px 10px; border-radius: 7px; cursor: pointer; border: none;
  background: transparent; color: var(--text-muted);
  font-size: 11px; font-weight: 700; font-family: var(--font-mono);
  letter-spacing: .5px; transition: all .18s; white-space: nowrap;
}
.theme-pill-btn.active {
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: 0 1px 6px rgba(0,0,0,.18);
}
[data-theme="light"] .theme-pill { background: var(--bg-overlay); border-color: var(--border); }
[data-theme="light"] .theme-pill-btn.active { background: #fff; color: var(--text-primary); box-shadow: 0 1px 6px rgba(0,0,0,.10); }


/* ═══════════════════════════════════════════════════════════
   AI CHAT ASSISTANT — Admin Panel
   ═══════════════════════════════════════════════════════════ */

/* ── Backdrop ── */
.ai-chat-backdrop{
  position:fixed;inset:0;z-index:9000;
  display:none;align-items:flex-end;justify-content:flex-end;
  padding:24px;pointer-events:none;
}
.ai-chat-backdrop.open{display:flex;pointer-events:all}

/* ── Panel ── */
.ai-chat-panel{
  width:460px;height:660px;
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:20px;
  background:var(--bg-surface);
  border:1px solid var(--border-bright);
  box-shadow:0 32px 80px rgba(0,0,0,.55),
             0 0 0 1px rgba(107,31,168,.12),
             0 0 80px rgba(107,31,168,.06);
  animation:aiPanelIn .32s cubic-bezier(.34,1.4,.64,1) both;
}
@keyframes aiPanelIn{
  from{opacity:0;transform:translateY(24px) scale(.95)}
  to  {opacity:1;transform:translateY(0)    scale(1)}
}

/* ── Header ── */
.ai-hd{
  flex-shrink:0;
  padding:0 18px;height:64px;
  display:flex;align-items:center;gap:12px;
  background:linear-gradient(135deg,rgba(160,20,90,.10) 0%,rgba(107,31,168,.08) 100%);
  border-bottom:1px solid var(--border);
  position:relative;overflow:hidden;
}
.ai-hd::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at 0% 50%,rgba(160,20,90,.15),transparent 60%),
             radial-gradient(ellipse at 100% 50%,rgba(107,31,168,.12),transparent 60%);
  pointer-events:none;
}
.ai-avatar{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,#a0145a,#6b1fa8);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;position:relative;z-index:1;
  box-shadow:0 4px 16px rgba(107,31,168,.45);
}
.ai-hd-info{flex:1;min-width:0;position:relative;z-index:1}
.ai-hd-name{
  font-size:14px;font-weight:800;
  background:linear-gradient(90deg,#e8d5f5,#ffffff);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  letter-spacing:-.3px;line-height:1.2;
}
.ai-hd-sub{
  display:flex;align-items:center;gap:6px;margin-top:3px;
  font-size:10px;color:var(--text-muted);font-family:var(--font-mono);
}
.ai-online-dot{
  width:6px;height:6px;border-radius:50%;background:#6672a0;
  flex-shrink:0;transition:all .3s;
}
.ai-online-dot.on {background:#00e887;box-shadow:0 0 8px #00e887}
.ai-online-dot.ld {background:#f59e0b;animation:aidotblink .7s ease infinite}
@keyframes aidotblink{0%,100%{opacity:1}50%{opacity:.25}}
.ai-hd-btns{display:flex;gap:6px;position:relative;z-index:1}
.ai-icon-btn{
  width:28px;height:28px;border-radius:8px;border:1px solid rgba(255,255,255,.1);
  background:rgba(255,255,255,.05);color:rgba(255,255,255,.55);
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  font-size:12px;transition:all .15s;
}
.ai-icon-btn:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.2)}

/* ── Model bar ── */
.ai-model-bar{
  flex-shrink:0;padding:7px 18px;
  display:flex;align-items:center;gap:8px;
  background:rgba(107,31,168,.05);border-bottom:1px solid var(--border);
  font-size:9.5px;font-family:var(--font-mono);color:var(--text-muted);
  letter-spacing:.6px;
}
.ai-model-pill{
  padding:2px 10px;border-radius:10px;font-size:10px;font-weight:700;
  background:linear-gradient(135deg,rgba(160,20,90,.2),rgba(107,31,168,.25));
  border:1px solid rgba(107,31,168,.35);color:#d090ff;letter-spacing:.3px;
}
.ai-live-badge{
  margin-left:auto;display:flex;align-items:center;gap:5px;
  font-size:9px;color:var(--text-muted);
}
.ai-live-dot{
  width:5px;height:5px;border-radius:50%;background:#00e887;
  animation:aidotblink 2s ease infinite;
}

/* ── Messages area ── */
.ai-messages{
  flex:1;overflow-y:auto;padding:18px 16px;
  display:flex;flex-direction:column;gap:14px;
  scroll-behavior:smooth;
}
.ai-messages::-webkit-scrollbar{width:3px}
.ai-messages::-webkit-scrollbar-track{background:transparent}
.ai-messages::-webkit-scrollbar-thumb{background:rgba(107,31,168,.3);border-radius:2px}

/* ── Message rows ── */
.ai-row{display:flex;flex-direction:column;gap:5px;animation:msgFade .22s ease both}
@keyframes msgFade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.ai-row.usr{align-items:flex-end}
.ai-row.bot{align-items:flex-start}

/* ── Sender label ── */
.ai-who{
  display:flex;align-items:center;gap:5px;
  font-size:9px;font-family:var(--font-mono);
  font-weight:700;letter-spacing:.8px;color:var(--text-muted);
  padding:0 4px;
}
.ai-who-avatar{
  width:16px;height:16px;border-radius:5px;
  background:linear-gradient(135deg,#a0145a,#6b1fa8);
  display:flex;align-items:center;justify-content:center;font-size:8px;
}

/* ── Bubbles ── */
.ai-bubble{
  max-width:88%;padding:12px 15px;
  font-size:13px;line-height:1.65;word-break:break-word;
}
/* User bubble */
.ai-row.usr .ai-bubble{
  background:linear-gradient(135deg,#a0145a,#6b1fa8);
  color:#fff;border-radius:16px 16px 4px 16px;
  box-shadow:0 4px 16px rgba(107,31,168,.35);
}
/* AI bubble */
.ai-row.bot .ai-bubble{
  background:var(--bg-elevated);color:var(--text-primary);
  border:1px solid var(--border);border-radius:4px 16px 16px 16px;
  box-shadow:0 2px 8px rgba(0,0,0,.08);
}

/* ── Markdown rendering inside AI bubbles ── */
.ai-bubble p{margin:0 0 8px}
.ai-bubble p:last-child{margin-bottom:0}
.ai-bubble strong{font-weight:700;color:inherit}
.ai-bubble em{font-style:italic;opacity:.85}
.ai-bubble ul,.ai-bubble ol{margin:6px 0 8px 18px;padding:0}
.ai-bubble li{margin-bottom:4px;line-height:1.55}
.ai-bubble li::marker{color:rgba(160,20,90,.7)}
.ai-bubble code{
  font-family:var(--font-mono);font-size:11.5px;
  background:rgba(107,31,168,.12);border:1px solid rgba(107,31,168,.2);
  border-radius:5px;padding:1px 6px;
}
.ai-bubble pre{
  background:rgba(0,0,0,.25);border:1px solid var(--border);
  border-radius:8px;padding:10px 12px;margin:8px 0;overflow-x:auto;
}
.ai-bubble pre code{background:none;border:none;padding:0;font-size:11px}
.ai-bubble h1,.ai-bubble h2,.ai-bubble h3{
  font-weight:700;margin:10px 0 4px;
  background:linear-gradient(90deg,#d090ff,#fff);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.ai-bubble h1{font-size:15px}
.ai-bubble h2{font-size:14px}
.ai-bubble h3{font-size:13px}
.ai-bubble hr{border:none;border-top:1px solid var(--border);margin:10px 0}
.ai-bubble blockquote{
  border-left:3px solid rgba(107,31,168,.5);
  padding:4px 10px;margin:6px 0;
  background:rgba(107,31,168,.06);border-radius:0 6px 6px 0;
  font-style:italic;color:var(--text-secondary);
}
/* user bubble: keep text white inside */
.ai-row.usr .ai-bubble strong{color:#fff}
.ai-row.usr .ai-bubble code{background:rgba(255,255,255,.15);border-color:rgba(255,255,255,.2);color:#fff}

/* ── Typing ── */
.ai-typing-wrap{display:flex;flex-direction:column;align-items:flex-start;gap:5px;animation:msgFade .2s ease both}
.ai-typing-bubble{
  display:flex;align-items:center;gap:5px;
  padding:12px 16px;background:var(--bg-elevated);
  border:1px solid var(--border);border-radius:4px 16px 16px 16px;
}
.ai-typing-bubble span{
  width:7px;height:7px;border-radius:50%;
  background:var(--brand-mid);opacity:.6;
  animation:tdot 1s ease infinite;
}
.ai-typing-bubble span:nth-child(2){animation-delay:.18s}
.ai-typing-bubble span:nth-child(3){animation-delay:.36s}
@keyframes tdot{0%,80%,100%{transform:scale(.8);opacity:.4}40%{transform:scale(1.2);opacity:1}}

/* ── Suggestion chips ── */
.ai-chips{display:flex;flex-wrap:wrap;gap:6px;padding:0 16px 12px;flex-shrink:0}
.ai-chip{
  padding:6px 13px;border-radius:20px;cursor:pointer;
  border:1px solid var(--border);background:var(--bg-overlay);
  color:var(--text-secondary);font-size:11.5px;font-weight:600;
  transition:all .18s;white-space:nowrap;
  font-family:var(--font-body);
}
.ai-chip:hover{
  border-color:var(--brand-mid);color:#fff;
  background:rgba(107,31,168,.12);
}

/* ── Input area ── */
.ai-input-area{
  flex-shrink:0;padding:14px 16px;
  background:var(--bg-elevated);
  border-top:1px solid var(--border);
  display:flex;gap:10px;align-items:flex-end;
}
.ai-textarea{
  flex:1;background:var(--bg-base);
  border:1.5px solid var(--border);border-radius:14px;
  padding:10px 14px;color:var(--text-primary);
  font-size:13px;font-family:var(--font-body);
  resize:none;outline:none;max-height:110px;
  line-height:1.5;transition:border-color .15s,box-shadow .15s;
}
.ai-textarea:focus{
  border-color:var(--brand-mid);
  box-shadow:0 0 0 3px rgba(107,31,168,.15);
}
.ai-textarea::placeholder{color:var(--text-muted)}
.ai-send{
  width:42px;height:42px;border-radius:13px;flex-shrink:0;
  background:linear-gradient(135deg,#a0145a,#6b1fa8);
  border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 14px rgba(107,31,168,.4);transition:all .18s;
}
.ai-send:hover{transform:scale(1.06);box-shadow:0 6px 20px rgba(107,31,168,.55)}
.ai-send:disabled{opacity:.35;cursor:not-allowed;transform:none;box-shadow:none}
.ai-send svg{fill:none;stroke:#fff;stroke-width:2.5}

/* ── Footer context bar ── */
.ai-footer{
  flex-shrink:0;padding:6px 18px;
  background:var(--bg-base);
  border-top:1px solid var(--border);
  font-size:9px;font-family:var(--font-mono);
  color:var(--text-muted);letter-spacing:.4px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  display:flex;align-items:center;gap:8px;
}
.ai-footer-dot{width:4px;height:4px;border-radius:50%;background:#00e887;flex-shrink:0}

/* ── Light theme ── */
[data-theme="light"] .ai-chat-panel{background:#fff;border-color:#cdd2ea;box-shadow:0 24px 60px rgba(0,0,0,.18),0 0 0 1px rgba(107,31,168,.08)}
[data-theme="light"] .ai-hd{background:linear-gradient(135deg,rgba(160,20,90,.07),rgba(107,31,168,.05))}
[data-theme="light"] .ai-hd-name{background:linear-gradient(90deg,#6b1fa8,#a0145a);-webkit-background-clip:text;background-clip:text}
[data-theme="light"] .ai-icon-btn{border-color:rgba(0,0,0,.1);background:rgba(0,0,0,.04);color:rgba(0,0,0,.5)}
[data-theme="light"] .ai-icon-btn:hover{background:rgba(0,0,0,.08);color:#000}
[data-theme="light"] .ai-row.bot .ai-bubble{background:#f8f8fd;border-color:#d0d4ea;color:#0c0d1c}
[data-theme="light"] .ai-bubble h1,.ai-bubble h2,.ai-bubble h3{background:linear-gradient(90deg,#6b1fa8,#a0145a);-webkit-background-clip:text;background-clip:text}
[data-theme="light"] .ai-bubble code{background:rgba(107,31,168,.08);border-color:rgba(107,31,168,.15)}
[data-theme="light"] .ai-typing-bubble{background:#f8f8fd;border-color:#d0d4ea}
[data-theme="light"] .ai-textarea{background:#fff;border-color:#d0d4ea;color:#0c0d1c}
[data-theme="light"] .ai-input-area{background:#f4f5fb;border-top-color:#d0d4ea}
[data-theme="light"] .ai-model-bar{background:rgba(107,31,168,.04);border-bottom-color:#d0d4ea}
[data-theme="light"] .ai-footer{background:#f4f5fb;border-top-color:#d0d4ea}
[data-theme="light"] .ai-chip{background:#eef0f9;border-color:#cdd2ea;color:#3a3f64}
[data-theme="light"] .ai-chip:hover{background:rgba(107,31,168,.08);border-color:var(--brand-mid);color:#6b1fa8}