/* Pokit — CSS Framework */
/* Minimal, responsive, clean. No external dependencies. */

:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #e0e7ff;
    --success: #059669;
    --danger: #dc2626;
    --warning: #d97706;
    --info: #0284c7;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --white: #ffffff;
    --sidebar-width: 250px;
    --header-height: 56px;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--gray-800);
    background: var(--gray-50);
}

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

/* Layout — Auth pages */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 20px;
}

.auth-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 420px;
    padding: 32px;
}

.auth-card h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.auth-card .subtitle {
    color: var(--gray-500);
    margin-bottom: 24px;
}

/* Layout — Main app */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--gray-900);
    color: var(--white);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 100;
    transition: transform 0.3s;
}

.sidebar-brand {
    padding: 16px 20px;
    font-size: 20px;
    font-weight: 700;
    border-bottom: 1px solid var(--gray-700);
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-brand span { color: var(--primary-light); }

.sidebar-nav { padding: 12px 0; }

.sidebar-section {
    padding: 8px 20px 4px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-400);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    color: var(--gray-300);
    font-size: 14px;
    transition: background 0.15s, color 0.15s;
    border-left: 3px solid transparent;
}

.sidebar-link:hover {
    background: var(--gray-800);
    color: var(--white);
    text-decoration: none;
}

.sidebar-link.active {
    background: var(--gray-800);
    color: var(--white);
    border-left-color: var(--primary);
}

.sidebar-link svg { width: 18px; height: 18px; flex-shrink: 0; }

.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-width: 0;
}

.top-bar {
    height: var(--header-height);
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
}

.top-bar-left { display: flex; align-items: center; gap: 12px; }
.top-bar-right { display: flex; align-items: center; gap: 16px; }

.page-content { padding: 24px; }

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.page-header h1 { font-size: 22px; font-weight: 600; color: var(--gray-900); }

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-body { padding: 20px; }

/* Stat cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
}

.stat-card .label { font-size: 12px; color: var(--gray-500); text-transform: uppercase; letter-spacing: 0.05em; }
.stat-card .value { font-size: 24px; font-weight: 700; color: var(--gray-900); margin-top: 4px; }
.stat-card .change { font-size: 13px; margin-top: 4px; }
.stat-card .positive { color: var(--success); }
.stat-card .negative { color: var(--danger); }

/* Tables */
.table-wrapper { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 10px 16px; font-size: 12px; font-weight: 600; color: var(--gray-500); text-transform: uppercase; letter-spacing: 0.05em; border-bottom: 2px solid var(--gray-200); }
td { padding: 12px 16px; border-bottom: 1px solid var(--gray-100); vertical-align: middle; }
tr:hover td { background: var(--gray-50); }

.text-right { text-align: right; }
.text-center { text-align: center; }

/* Badges */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; color: var(--gray-700); margin-bottom: 4px; }

.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-size: 14px;
    color: var(--gray-800);
    background: var(--white);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

select.form-control { appearance: auto; }
textarea.form-control { resize: vertical; min-height: 80px; }

.form-error { color: var(--danger); font-size: 12px; margin-top: 4px; }
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    text-decoration: none;
}

.btn:hover { text-decoration: none; }

.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: var(--white); }
.btn-danger { background: var(--danger); color: var(--white); }
.btn-outline { background: var(--white); border-color: var(--gray-300); color: var(--gray-700); }
.btn-outline:hover { background: var(--gray-50); }
.btn-sm { padding: 4px 10px; font-size: 13px; }
.btn-lg { padding: 10px 20px; font-size: 16px; }
.btn-block { width: 100%; }

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
}

.alert-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.alert-danger { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }
.alert-info { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

/* Business switcher */
.biz-switcher select {
    padding: 6px 10px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-size: 13px;
    background: var(--white);
}

/* Amount formatting */
.amount { font-family: 'SF Mono', 'Fira Code', monospace; font-variant-numeric: tabular-nums; }
.amount-positive { color: var(--success); }
.amount-negative { color: var(--danger); }

/* Empty state */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--gray-400);
}

.empty-state h3 { font-size: 16px; color: var(--gray-600); margin-bottom: 8px; }

/* Mobile hamburger */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .menu-toggle { display: block; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .form-row { flex-direction: column; gap: 0; }
    .page-header { flex-direction: column; align-items: flex-start; gap: 12px; }
    .hide-mobile { display: none; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .page-content { padding: 16px; }
}

/* Utility */
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 16px; }
.text-sm { font-size: 13px; }
.text-muted { color: var(--gray-500); }
.fw-600 { font-weight: 600; }