:root {
  --bg: #0a0a0a;
  --bg-gradient: radial-gradient(ellipse 80% 50% at 20% 40%, rgba(212,168,67,0.03), transparent),
                 radial-gradient(ellipse 60% 40% at 80% 60%, rgba(212,168,67,0.02), transparent);
  --sidebar-bg: #0d0d0d;
  --surface: #111111;
  --surface-hover: #161616;
  --surface-elevated: #141414;
  --border: rgba(255,255,255,0.04);
  --border-hover: rgba(255,255,255,0.08);
  --text: #ffffff;
  --text-secondary: rgba(255,255,255,0.6);
  --text-muted: rgba(255,255,255,0.4);
  --accent: #d4a843;
  --accent-soft: rgba(212,168,67,0.12);
  --accent-hover: rgba(212,168,67,0.2);
  --success: #22c55e;
  --warning: #eab308;
  --danger: #ef4444;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  background-image: var(--bg-gradient);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
}

a { color: inherit; text-decoration: none; }

/* ─── Sidebar ───────────────────────────────────────── */
.sidebar {
  width: 220px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 20px 24px;
  border-bottom: 1px solid var(--border);
}

.brand-icon { flex-shrink: 0; }

.brand-text {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s ease;
}

.sidebar-link:hover {
  background: var(--surface-hover);
  color: var(--text);
}

.sidebar-link.active {
  background: var(--accent-soft);
  color: var(--accent);
}

.sidebar-link svg {
  flex-shrink: 0;
  opacity: 0.7;
}

.sidebar-link.active svg { opacity: 1; }

/* ─── Main Wrapper ──────────────────────────────────── */
.main-wrapper {
  flex: 1;
  margin-left: 220px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-width: 0;
}

/* ─── Topbar ────────────────────────────────────────── */
.topbar {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  border-bottom: 1px solid var(--border);
  background: rgba(10,10,10,0.8);
  backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.bc-sep { color: var(--text-muted); }
.bc-current { color: var(--text); font-weight: 500; }

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.topbar-btn:hover {
  background: var(--surface-hover);
  color: var(--text);
  border-color: var(--border-hover);
}

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

.user-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
}

/* ─── Page Content ──────────────────────────────────── */
.page-content {
  flex: 1;
  padding: 32px;
  width: 100%;
  min-width: 0;
}

/* ─── Cards ─────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.card:hover { border-color: var(--border-hover); }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.card-header h2,
.card-header h3 {
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-header .icon-circle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}

.card-body { padding: 20px 24px; }

/* ─── Buttons ───────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--surface-elevated);
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn:hover {
  background: var(--surface-hover);
  border-color: var(--border-hover);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #0a0a0a;
}

.btn-primary:hover {
  background: #c99a3a;
  border-color: #c99a3a;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 12px;
  border-radius: 8px;
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background: var(--surface-hover);
  color: var(--text);
}

/* ─── Stats ─────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.stat-card .icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ─── Tables ────────────────────────────────────────── */
.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.data-table thead th {
  text-align: left;
  padding: 14px 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table tbody td {
  padding: 16px 20px;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background 0.15s ease;
}

.data-table tbody tr:hover {
  background: var(--surface-hover);
}

.data-table tbody tr:last-child td { border-bottom: none; }

/* ─── Badges ────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border);
}

.badge-a { background: rgba(34,197,94,0.1); color: var(--success); border-color: rgba(34,197,94,0.2); }
.badge-b { background: rgba(212,168,67,0.1); color: var(--accent); border-color: rgba(212,168,67,0.2); }
.badge-c { background: rgba(234,179,8,0.1); color: var(--warning); border-color: rgba(234,179,8,0.2); }
.badge-d { background: rgba(239,68,68,0.1); color: var(--danger); border-color: rgba(239,68,68,0.2); }
.badge-ko { background: rgba(100,100,100,0.1); color: var(--text-muted); border-color: var(--border); }
.badge-warm { background: rgba(212,168,67,0.12); color: var(--accent); border-color: rgba(212,168,67,0.25); }
.badge-cold { background: rgba(100,149,237,0.12); color: #6495ed; border-color: rgba(100,149,237,0.25); }
.badge-hot { background: rgba(239,68,68,0.12); color: var(--danger); border-color: rgba(239,68,68,0.25); }
.badge-new_lead { background: rgba(148,163,184,0.12); color: #94a3b8; border-color: rgba(148,163,184,0.25); }

/* ─── Score Display ─────────────────────────────────── */
.score-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
}

.score-pill.a { background: rgba(34,197,94,0.12); color: var(--success); }
.score-pill.b { background: rgba(212,168,67,0.12); color: var(--accent); }
.score-pill.c { background: rgba(234,179,8,0.12); color: var(--warning); }
.score-pill.d { background: rgba(239,68,68,0.12); color: var(--danger); }

/* ─── Empty State ───────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

/* ─── Loading ───────────────────────────────────────── */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
  color: var(--text-muted);
}

.loading::after {
  content: "";
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  margin-left: 12px;
  animation: spin 0.8s linear infinite;
}

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

/* ─── Scrollbar ─────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.15); }

/* ─── Selection ─────────────────────────────────────── */
::selection {
  background: var(--accent-soft);
  color: var(--text);
}

/* ─── Forms ─────────────────────────────────────────── */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-elevated);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.4)' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-actions {
  display: flex;
  gap: 12px;
  padding: 20px 24px;
}

/* ─── Grid Layouts ──────────────────────────────────── */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

/* ─── Upload Slots ──────────────────────────────────── */
.image-upload-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 12px;
}

.upload-slot label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.upload-slot input[type="file"] {
  width: 100%;
  padding: 8px;
  border-radius: 8px;
  border: 1px dashed var(--border-hover);
  background: var(--surface-elevated);
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
}

/* ─── Page Header ───────────────────────────────────── */
.page-header {
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 4px;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 14px;
}

/* ─── Responsive ────────────────────────────────────── */
@media (max-width: 1024px) {
  .sidebar { width: 64px; }
  .sidebar .brand-text,
  .sidebar-link span { display: none; }
  .sidebar-brand { justify-content: center; padding: 20px 12px; }
  .sidebar-nav { padding: 16px 8px; }
  .sidebar-link { justify-content: center; padding: 12px; }
  .main-wrapper { margin-left: 64px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .page-content { padding: 20px; }
  .stats-grid { grid-template-columns: 1fr; }
  .topbar { padding: 0 20px; }
}