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

:root {
    --bg: #f5f6fa;
    --sidebar-bg: #1a2332;
    --sidebar-text: #a0aec0;
    --sidebar-active: #3b82f6;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --danger: #ef4444;
    --success: #22c55e;
    --warning: #f59e0b;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --card-bg: #ffffff;
    --radius: 8px;
}

body { font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); }

/* Layout */
.app-layout { display: flex; min-height: 100vh; }
.sidebar { width: 240px; background: var(--sidebar-bg); color: var(--sidebar-text); position: fixed; top: 0; left: 0; bottom: 0; overflow-y: auto; }
.sidebar-header { padding: 1.5rem; border-bottom: 1px solid #2d3748; }
.sidebar-header h2 { color: #fff; font-size: 1.25rem; }
.nav-list { list-style: none; padding: 0.5rem 0; }
.nav-list li { padding: 0; }
.nav-list a { display: block; padding: 0.6rem 1.5rem; color: var(--sidebar-text); text-decoration: none; font-size: 0.875rem; }
.nav-list a:hover, .nav-list a.active { background: rgba(59, 130, 246, 0.1); color: #fff; border-left: 3px solid var(--sidebar-active); }
.nav-section { padding: 0.75rem 1.5rem 0.25rem; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; color: #4a5568; }

.content { flex: 1; margin-left: 240px; padding: 0; }
.topbar { background: var(--card-bg); padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.topbar h1 { font-size: 1.25rem; font-weight: 600; }
.topbar-actions { display: flex; gap: 0.5rem; }
.main-inner { padding: 1.5rem; max-width: 1400px; }

/* Cards */
.card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1rem; }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.card-title { font-size: 1rem; font-weight: 600; }

/* Tables */
.table-container { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: var(--card-bg); border-radius: var(--radius); overflow: hidden; }
th { text-align: left; padding: 0.75rem 1rem; background: #f8fafc; border-bottom: 2px solid var(--border); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--text-light); }
td { padding: 0.75rem 1rem; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
tr:hover td { background: #f8fafc; }

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.3rem; font-size: 0.85rem; font-weight: 500; color: var(--text-light); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 0.5rem 0.75rem; border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.9rem;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.5rem 1rem; border-radius: var(--radius); border: none; font-size: 0.875rem; cursor: pointer; text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { background: #f8fafc; }
.btn-sm { padding: 0.25rem 0.6rem; font-size: 0.8rem; }

/* Badges */
.badge { display: inline-block; padding: 0.15rem 0.6rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge-open { background: #dbeafe; color: #1e40af; }
.badge-assigned { background: #e0e7ff; color: #3730a3; }
.badge-scheduled { background: #fef3c7; color: #92400e; }
.badge-in-progress, .badge-in_progress { background: #fce7f3; color: #9d174d; }
.badge-completed { background: #d1fae5; color: #065f46; }
.badge-cancelled { background: #f1f5f9; color: #475569; }
.badge-on_hold { background: #fef3c7; color: #92400e; }
.badge-emergency { background: var(--danger); color: #fff; }
.badge-high { background: #fed7aa; color: #9a3412; }
.badge-normal { background: #dbeafe; color: #1e40af; }
.badge-low { background: #e0e7ff; color: #3730a3; }
.badge-active { background: #d1fae5; color: #065f46; }
.badge-inactive { background: #f1f5f9; color: #64748b; }
.badge-prospect { background: #fef3c7; color: #92400e; }

/* Alerts */
.alert { padding: 0.75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: 0.875rem; }
.alert-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: #166534; }

/* Toast */
.toast { position: fixed; bottom: 1rem; right: 1rem; padding: 0.75rem 1.5rem; border-radius: var(--radius); background: var(--text); color: #fff; font-size: 0.875rem; opacity: 0; transform: translateY(1rem); transition: all 0.2s; pointer-events: none; z-index: 1000; }
.toast.show { opacity: 1; transform: translateY(0); }

/* Modal */
dialog { border: none; border-radius: var(--radius); padding: 0; max-width: 600px; width: 90%; box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1); }
dialog::backdrop { background: rgba(0,0,0,0.4); }
dialog .modal-body { padding: 1.5rem; }
dialog .modal-header { padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
dialog .modal-header h2 { font-size: 1.1rem; }
dialog .modal-close { background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--text-light); }

/* Grid */
.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: 1fr 1fr 1fr; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* KPI Cards */
.kpi-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; }
.kpi-label { font-size: 0.8rem; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.03em; }
.kpi-value { font-size: 1.75rem; font-weight: 700; margin-top: 0.3rem; }

/* Links */
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Empty state */
.empty-state { text-align: center; padding: 2.5rem 1rem; color: var(--text-light); }
.empty-state a { color: var(--primary); }

/* Misc */
.text-sm { font-size: 0.8rem; }
.text-light { color: var(--text-light); }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.flex { display: flex; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }

/* Login page */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--sidebar-bg); }
.login-card { background: var(--card-bg); border-radius: 12px; box-shadow: 0 20px 25px -5px rgba(0,0,0,0.3); padding: 2.5rem; width: 400px; max-width: 90vw; }
.login-header { text-align: center; margin-bottom: 2rem; }
.login-header h1 { font-size: 1.75rem; color: var(--text); }
.login-header p { color: var(--text-light); font-size: 0.9rem; margin-top: 0.3rem; }
.login-form { display: flex; flex-direction: column; gap: 1rem; }
.btn-block { width: 100%; justify-content: center; padding: 0.65rem; }