/* ============================================
   ENTERPRISE CRM — CUSTOM CSS
   Bootstrap 5 + Custom Theming
   ============================================ */

:root {
  --sidebar-width: 240px;
  --topbar-height: 60px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', system-ui, sans-serif;
  --color-primary: #0d6efd;
  --color-sidebar-bg: #0f172a;
  --color-sidebar-text: rgba(255,255,255,.65);
  --color-sidebar-active-bg: rgba(255,255,255,.08);
  --color-sidebar-active-text: #fff;
  --color-bg: #f0f4f8;
  --color-card: #fff;
  --color-border: #e5e7eb;
  --color-text: #1a202c;
  --color-muted: #6b7280;
  --shadow-card: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-lg: 0 4px 20px rgba(0,0,0,.1);
  --radius: 12px;
  --radius-sm: 8px;
}

[data-bs-theme="dark"] {
  --color-bg: #0d1117;
  --color-card: #161b22;
  --color-border: #30363d;
  --color-text: #e6edf3;
  --color-muted: #8b949e;
  --shadow-card: 0 1px 3px rgba(0,0,0,.3);
}

* { box-sizing: border-box; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

/* ── Sidebar ── */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--color-sidebar-bg);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  overflow-y: auto;
  transition: transform .3s ease;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 16px;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,.08);
  flex-shrink: 0;
}

.brand-icon {
  width: 36px; height: 36px;
  background: var(--color-primary);
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 18px; color: #fff;
  flex-shrink: 0;
}

.brand-name { font-weight: 700; font-size: 15px; color: #fff; line-height: 1.2; }
.brand-sub { font-size: 9px; color: rgba(255,255,255,.4); letter-spacing: 1.5px; text-transform: uppercase; }

.sidebar-nav { flex: 1; padding: 12px 8px; }

.sidebar-section {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: rgba(255,255,255,.25);
  padding: 16px 8px 6px;
}

.nav-item-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  color: var(--color-sidebar-text);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: all .15s ease;
  margin-bottom: 2px;
}
.nav-item-link:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav-item-link.active { background: rgba(13,110,253,.35); color: #fff; }
.nav-icon { width: 20px; text-align: center; font-size: 15px; flex-shrink: 0; }

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255,255,255,.08);
  flex-shrink: 0;
}

/* ── Sidebar light variant ── */
.sidebar-light {
  background: #ffffff;
  border-right: 1px solid #e5e7eb;
}
.sidebar-light .sidebar-brand {
  border-bottom-color: #e5e7eb;
}
.sidebar-light .brand-name { color: #1e293b; }
.sidebar-light .brand-sub  { color: #94a3b8; }
.sidebar-light .sidebar-section { color: #94a3b8; }
.sidebar-light .nav-item-link { color: #475569; }
.sidebar-light .nav-item-link:hover { background: #f1f5f9; color: #1e293b; }
.sidebar-light .nav-item-link.active { background: rgba(13,110,253,.1); color: var(--color-primary); }
.sidebar-light .sidebar-footer { border-top-color: #e5e7eb; }
.sidebar-light .sidebar-footer .text-white { color: #1e293b !important; }
.sidebar-light .sidebar-footer .text-white.fw-600 { color: #1e293b !important; }
.sidebar-light .sidebar-footer [style*="color:rgba(255,255,255"] { color: #64748b !important; }

/* ── Main Layout ── */
.main-wrapper {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  height: var(--topbar-height);
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
  position: sticky;
  top: 0; z-index: 100;
  flex-shrink: 0;
}

.page-title { font-size: 16px; font-weight: 700; color: var(--color-text); margin: 0; }

.topbar-actions { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.topbar-btn {
  width: 36px; height: 36px;
  border: none; background: transparent;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-muted);
  cursor: pointer; font-size: 16px;
  position: relative;
  transition: background .15s;
}
.topbar-btn:hover { background: rgba(0,0,0,.05); color: var(--color-text); }

.notification-badge {
  position: absolute;
  top: 3px; right: 3px;
  width: 16px; height: 16px;
  background: #dc3545;
  border-radius: 50%;
  font-size: 9px;
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}

.avatar-circle {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  flex-shrink: 0;
}

.content-area {
  flex: 1;
  padding: 24px;
  overflow-x: hidden;
}

/* ── Page Header ── */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-header h1 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

/* ── Cards ── */
.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.card-header { border-bottom: 1px solid var(--color-border); }

/* ── Stat Cards ── */
.stat-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  box-shadow: var(--shadow-card);
  transition: transform .15s, box-shadow .15s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.stat-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.bg-primary-soft { background: rgba(13,110,253,.12); color: #0d6efd; }
.bg-success-soft { background: rgba(25,135,84,.12); color: #198754; }
.bg-warning-soft { background: rgba(255,193,7,.12); color: #856404; }
.bg-info-soft { background: rgba(13,202,240,.12); color: #087990; }
.bg-danger-soft { background: rgba(220,53,69,.12); color: #dc3545; }

.stat-value { font-size: 24px; font-weight: 800; color: var(--color-text); line-height: 1; }
.stat-label { font-size: 12px; color: var(--color-muted); margin: 4px 0 2px; font-weight: 500; }
.stat-change { font-size: 11px; font-weight: 600; }

/* ── Charts ── */
.chart-container { position: relative; }

/* ── Tables ── */
.table-card .card-body { padding: 0; }
.table th { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; color: var(--color-muted); }
.table td { vertical-align: middle; }

/* ── Kanban ── */
.kanban-board {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 12px;
  min-height: 70vh;
}

.kanban-column {
  flex-shrink: 0;
  width: 280px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
}

.kanban-col-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border);
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
}

.kanban-col-title { display: flex; align-items: center; gap: 8px; }
.kanban-col-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

.kanban-cards {
  flex: 1;
  padding: 10px;
  min-height: 100px;
  overflow-y: auto;
}

.kanban-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px;
  margin-bottom: 8px;
  cursor: grab;
  transition: transform .15s, box-shadow .15s;
  box-shadow: var(--shadow-card);
}
.kanban-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.kanban-card.dragging { opacity: .5; transform: rotate(1deg); }
.kanban-cards.drag-over { background: rgba(13,110,253,.05); border: 2px dashed var(--color-primary); }

.kanban-card-title { font-weight: 600; font-size: 13px; margin-bottom: 6px; }
.kanban-card-meta { font-size: 11px; color: var(--color-muted); }

/* ── Forms ── */
.form-control, .form-select {
  border-color: var(--color-border);
  background: var(--color-card);
  color: var(--color-text);
  border-radius: 8px;
  font-size: 13px;
}
.form-control:focus, .form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(13,110,253,.15);
}
.form-label { font-size: 13px; color: var(--color-text); }

.search-box { position: relative; }
.search-box .form-control { padding-left: 36px; }
.search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--color-muted); font-size: 14px; pointer-events: none; }

/* ── Score Bar ── */
.score-bar { height: 4px; background: var(--color-border); border-radius: 2px; overflow: hidden; }
.score-fill { height: 100%; border-radius: 2px; transition: width .3s; }

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 64px 24px;
}
.empty-icon { font-size: 48px; color: var(--color-muted); margin-bottom: 16px; opacity: .5; }
.empty-state h5 { font-weight: 700; color: var(--color-text); margin-bottom: 8px; }

/* ── Auth ── */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  padding: 24px;
}

.auth-card {
  background: white;
  border-radius: 20px;
  padding: 40px;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
}

[data-bs-theme="dark"] .auth-card { background: var(--color-card); }

.auth-logo { text-align: center; margin-bottom: 28px; }

.logo-icon {
  width: 52px; height: 52px;
  background: var(--color-primary);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 800; color: white;
  margin: 0 auto 12px;
}

/* ── Notification List ── */
.notification-list { max-height: 320px; overflow-y: auto; }
.notification-item { padding: 12px 16px; cursor: pointer; transition: background .1s; }
.notification-item:hover { background: rgba(0,0,0,.03); }
.notification-item.unread { background: rgba(13,110,253,.03); }
.notification-item:not(:last-child) { border-bottom: 1px solid var(--color-border); }

/* ── Utilities ── */
.fw-600 { font-weight: 600 !important; }
.fw-700 { font-weight: 700 !important; }
.fw-800 { font-weight: 800 !important; }
.flex-1 { flex: 1; }

.fade-in { animation: fadeIn .3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ── Responsive ── */
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 999;
}

@media (max-width: 991.98px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .sidebar-overlay.show {
    display: block;
  }
  .main-wrapper {
    margin-left: 0;
  }
}

/* ── Dark Mode ── */
[data-bs-theme="dark"] .topbar { background: #161b22; border-color: #30363d; }
[data-bs-theme="dark"] .card { background: #161b22; border-color: #30363d; }
[data-bs-theme="dark"] .table-light { background: #1c2128 !important; }
[data-bs-theme="dark"] .form-control, [data-bs-theme="dark"] .form-select { background: #1c2128; border-color: #30363d; color: #e6edf3; }
[data-bs-theme="dark"] .dropdown-menu { background: #161b22; border-color: #30363d; }
[data-bs-theme="dark"] .dropdown-item { color: #e6edf3; }
[data-bs-theme="dark"] .dropdown-item:hover { background: #1c2128; }
[data-bs-theme="dark"] .modal-content { background: #161b22; border-color: #30363d; }
[data-bs-theme="dark"] .modal-header, [data-bs-theme="dark"] .modal-footer { border-color: #30363d; }
[data-bs-theme="dark"] .kanban-column { background: #0d1117; border-color: #30363d; }
[data-bs-theme="dark"] .kanban-card { background: #161b22; border-color: #30363d; }