:root {
    --primary: #1e40af;
    --primary-light: #3b82f6;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    --sidebar-w: 240px;
    --topbar-h: 56px;
}
* { box-sizing: border-box; }
body {
    font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
    margin: 0; padding: 0;
    background: #f3f4f6;
    color: #111827;
    font-size: 14px;
}
a { text-decoration: none; color: var(--primary); }

.topbar {
    position: sticky; top: 0; left: 0; right: 0;
    height: var(--topbar-h);
    background: var(--primary); color: #fff;
    display: flex; align-items: center;
    padding: 0 12px; z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.topbar .menu-btn {
    background: transparent; border: 0; color: #fff;
    font-size: 22px; cursor: pointer; padding: 0 10px;
}
.topbar .brand { font-weight: 700; font-size: 16px; flex: 1; margin-left: 8px; }
.topbar .user-chip { font-size: 13px; color: rgba(255,255,255,0.9); }

.sidebar {
    position: fixed; top: var(--topbar-h); left: -260px;
    width: var(--sidebar-w); height: calc(100vh - var(--topbar-h));
    background: #fff; border-right: 1px solid #e5e7eb;
    overflow-y: auto; transition: left 0.25s;
    padding: 12px 0; z-index: 90;
}
.sidebar.open { left: 0; }
.sidebar a {
    display: block; padding: 10px 16px;
    color: #374151; border-left: 3px solid transparent;
    font-weight: 500;
}
.sidebar a:hover { background: #f3f4f6; color: var(--primary); }
.sidebar a.active {
    background: #eff6ff; color: var(--primary);
    border-left-color: var(--primary);
}
.sidebar .section-title {
    padding: 12px 16px 4px; font-size: 11px;
    text-transform: uppercase; color: #9ca3af;
    font-weight: 600; letter-spacing: 0.5px;
}
.backdrop {
    display: none; position: fixed; top: var(--topbar-h);
    left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.4); z-index: 80;
}
.backdrop.show { display: block; }

@media (min-width: 992px) {
    .sidebar { left: 0; }
    .topbar .menu-btn { display: none; }
    main { margin-left: var(--sidebar-w); }
    .backdrop { display: none !important; }
}

main { min-height: calc(100vh - var(--topbar-h)); padding-bottom: 40px; }

.kpi-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
@media (min-width: 768px) { .kpi-grid { grid-template-columns: repeat(4, 1fr); } }
.kpi-card { background: #fff; border-radius: 10px; padding: 14px; box-shadow: 0 1px 3px rgba(0,0,0,0.05); }
.kpi-label { font-size: 12px; color: #6b7280; margin-bottom: 4px; }
.kpi-value { font-size: 22px; font-weight: 700; color: var(--primary); }

.card { background: #fff; border: 1px solid #e5e7eb; border-radius: 10px; overflow: hidden; }
.card-header { padding: 12px 16px; background: #f9fafb; border-bottom: 1px solid #e5e7eb; font-weight: 600; }
.card-body { padding: 16px; }

.badge-status-new { background: #dbeafe; color: #1e40af; }
.badge-status-contacted { background: #ccfbf1; color: #0f766e; }
.badge-status-qualified { background: #e0e7ff; color: #3730a3; }
.badge-status-processing { background: #fef3c7; color: #92400e; }
.badge-status-approved { background: #d1fae5; color: #065f46; }
.badge-status-rejected, .badge-status-lost { background: #fee2e2; color: #991b1b; }
.badge-status-duplicated { background: #f3f4f6; color: #6b7280; }

.badge-temp-hot { background: #fee2e2; color: #991b1b; }
.badge-temp-warm { background: #fef3c7; color: #92400e; }
.badge-temp-cold { background: #dbeafe; color: #1e40af; }

.lead-card {
    background: #fff; border: 1px solid #e5e7eb;
    border-left: 4px solid #9ca3af; border-radius: 8px;
    padding: 12px; margin-bottom: 10px;
    display: block; color: inherit;
}
.lead-card.hot { border-left-color: var(--danger); }
.lead-card.warm { border-left-color: var(--warning); }
.lead-card.cold { border-left-color: var(--info); }
.lead-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.08); }

.filter-bar { background: #fff; padding: 10px; border-radius: 8px; margin-bottom: 12px; }

.kanban { display: flex; gap: 12px; overflow-x: auto; padding: 10px 0; }
.kanban-col {
    flex: 0 0 280px; background: #f3f4f6;
    border-radius: 10px; padding: 10px; min-height: 400px;
}
.kanban-col h6 {
    padding: 4px 8px; margin: 0 0 10px;
    font-weight: 600; border-bottom: 2px solid #e5e7eb;
}
.kanban-card {
    background: #fff; border: 1px solid #e5e7eb;
    border-left: 4px solid #9ca3af; border-radius: 6px;
    padding: 10px; margin-bottom: 8px; cursor: move; font-size: 13px;
}
.kanban-card.hot { border-left-color: var(--danger); }
.kanban-card.warm { border-left-color: var(--warning); }
.kanban-card.cold { border-left-color: var(--info); }
.kanban-col.drag-over { background: #e0e7ff; }

.auth-wrap {
    min-height: 100vh; display: flex;
    align-items: center; justify-content: center;
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    padding: 20px;
}
.auth-card {
    background: #fff; border-radius: 12px;
    padding: 32px; width: 100%; max-width: 400px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.auth-card h1 { margin: 0 0 8px; color: var(--primary); font-size: 22px; }
.auth-card .subtitle { color: #6b7280; margin-bottom: 20px; font-size: 13px; }

.pagination { display: flex; gap: 4px; justify-content: center; margin-top: 16px; }
.page-link {
    padding: 6px 12px; border: 1px solid #e5e7eb;
    border-radius: 4px; background: #fff; color: #374151;
}
.page-link.active { background: var(--primary); color: #fff; border-color: var(--primary); }