@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Sleek color tokens */
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --border-color: #e2e8f0;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --brand: #4f46e5;
    --brand-hover: #4338ca;
    --brand-light: #e0e7ff;
    
    --success: #10b981;
    --success-light: #d1fae5;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    
    --sidebar-width: 260px;
    --header-height: 70px;
    --border-radius: 12px;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
}

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

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* Page Wrapper Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar styling */
.sidebar {
    width: var(--sidebar-width);
    background-color: #0f172a;
    color: #f8fafc;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-brand {
    padding: 24px;
    font-size: 20px;
    font-weight: 700;
    color: #ffffff;
    border-bottom: 1px solid #1e293b;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-brand span {
    color: #818cf8;
}

.sidebar-menu {
    list-style: none;
    padding: 20px 12px;
    flex-grow: 1;
}

.sidebar-item {
    margin-bottom: 6px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    color: #94a3b8;
    font-weight: 500;
    transition: all 0.2s ease;
}

.sidebar-link:hover, .sidebar-link.active {
    color: #ffffff;
    background-color: #1e293b;
}

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

.sidebar-link svg {
    width: 20px;
    height: 20px;
    margin-right: 12px;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid #1e293b;
}

.logout-btn {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    background: transparent;
    border: none;
    color: #f87171;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.logout-btn:hover {
    background-color: #7f1d1d33;
}

/* Main Dashboard Panel */
.main-content {
    flex-grow: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Top Header */
.main-header {
    height: var(--header-height);
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 90;
}

.header-title {
    font-size: 18px;
    font-weight: 600;
}

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

.user-info {
    text-align: right;
}

.user-name {
    font-weight: 600;
    font-size: 14px;
}

.user-role {
    font-size: 12px;
    color: var(--text-secondary);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--brand-light);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    border: 2px solid #fff;
    box-shadow: var(--shadow-sm);
}

/* Layout Content Frame */
.content-body {
    padding: 32px;
    flex-grow: 1;
}

/* Dashboard Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 24px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-title {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
}

.stat-footer {
    margin-top: 12px;
    font-size: 12px;
    color: var(--text-muted);
}

/* Section Card */
.content-card {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    margin-bottom: 32px;
    overflow: hidden;
}

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

.card-title {
    font-size: 16px;
    font-weight: 600;
}

.card-body {
    padding: 24px;
}

/* Button UI Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--brand);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--brand-hover);
}

.btn-secondary {
    background-color: #fff;
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.btn-secondary:hover {
    background-color: var(--bg-main);
}

.btn-danger {
    background-color: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    background-color: #dc2626;
}

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

/* Alert UI Components */
.alert {
    padding: 16px;
    border-radius: var(--border-radius);
    margin-bottom: 24px;
    font-size: 14px;
    font-weight: 500;
}

.alert-success {
    background-color: var(--success-light);
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-danger {
    background-color: var(--danger-light);
    color: #991b1b;
    border: 1px solid #fca5a5;
}

/* Premium Form UI */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

/* Elegant Table Framework */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 16px;
}

/* Custom Scrollbars for Responsive Tables */
.table-responsive::-webkit-scrollbar {
    height: 8px;
    display: block;
}
.table-responsive::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 4px;
}
.table-responsive::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}
.table-responsive::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

.table-custom {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

/* Specific Table Min-Widths for Responsive Design */
.table-reports {
    min-width: 1100px;
}
.table-employees {
    min-width: 950px;
}
.table-dashboard {
    min-width: 800px;
}
.table-companies {
    min-width: 900px;
}
.table-dashboard-super {
    min-width: 800px;
}

.table-custom th {
    background-color: var(--bg-main);
    padding: 14px 24px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
}

.table-custom td {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-secondary);
}

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

.table-custom tr:hover td {
    background-color: #f8fafc;
}

/* Status Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background-color: var(--success-light);
    color: #065f46;
}

.badge-danger {
    background-color: var(--danger-light);
    color: #991b1b;
}

.badge-warning {
    background-color: var(--warning-light);
    color: #92400e;
}

/* Login Page Layout */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    padding: 24px;
}

.login-card {
    background-color: #fff;
    width: 100%;
    max-width: 440px;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.login-logo {
    text-align: center;
    font-size: 24px;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 8px;
}

.login-logo span {
    color: var(--brand);
}

.login-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 32px;
}

/* Grid Filter Bars */
.filter-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    align-items: flex-end;
    margin-bottom: 24px;
}

/* Responsive Breakpoints */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .main-header {
        padding: 0 16px;
    }
    
    .content-body {
        padding: 16px;
    }
    
    .filter-bar {
        grid-template-columns: 1fr;
    }
}

/* Responsive 2-column form grids */
.form-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
@media (max-width: 600px) {
    .form-grid-2 {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}

.layout-grid-2-1 {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 32px;
}
@media (max-width: 900px) {
    .layout-grid-2-1 {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}