/* Professional Color Palette - No Gradients */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --light-bg: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --card-hover-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.2s ease;
}

/* Global Styles */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--light-bg);
    min-height: 100vh;
    color: var(--text-primary);
}

/* Modern Navbar */
.navbar {
    background: var(--primary-color) !important;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    padding: 1rem 2rem;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: white !important;
    transition: var(--transition);
}

.navbar-brand:hover {
    opacity: 0.9;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 1rem !important;
    border-radius: 6px;
}

.nav-link:hover {
    color: white !important;
    background: rgba(255, 255, 255, 0.1);
}

/* Language Switcher */
.language-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.language-switcher .dropdown-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: var(--transition);
}

.language-switcher .dropdown-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
}

.language-switcher .dropdown-menu {
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    padding: 0.5rem;
}

.language-switcher .dropdown-item {
    border-radius: 6px;
    transition: var(--transition);
    padding: 0.5rem 1rem;
}

.language-switcher .dropdown-item:hover {
    background: var(--light-bg);
    color: var(--primary-color);
}

/* User Dropdown */
.dropdown-menu {
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    padding: 0.5rem;
}

.dropdown-item {
    border-radius: 6px;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    color: var(--text-primary);
}

.dropdown-item:hover {
    background: var(--light-bg);
    color: var(--primary-color);
}

.dropdown-divider {
    border-color: var(--border-color);
    margin: 0.5rem 0;
}

/* Container */
.container {
    margin-top: 2rem;
}

/* Cards */
.card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    overflow: visible;
    background: var(--card-bg);
}

.card:hover {
    box-shadow: var(--card-hover-shadow);
}

.card-header {
    background: var(--card-bg);
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem;
    font-weight: 600;
}

.card-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    border-radius: 6px;
    padding: 0.5rem 1rem;
    font-weight: 500;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #475569;
}

.btn-outline-primary {
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

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

.btn-outline-secondary {
    border: 1px solid var(--secondary-color);
    color: var(--secondary-color);
    background: transparent;
}

.btn-outline-secondary:hover {
    background: var(--secondary-color);
    color: white;
}

.btn-outline-danger {
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
    background: transparent;
}

.btn-outline-danger:hover {
    background: var(--danger-color);
    color: white;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

/* Tables */
.table {
    border-radius: 8px;
    overflow: visible;
}

.table thead {
    background: var(--light-bg);
    color: var(--text-primary);
}

.table thead th {
    border: none;
    padding: 1rem;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.table tbody tr {
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

.table tbody tr:hover {
    background: var(--light-bg);
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
}

.table-hover tbody tr:hover {
    background: var(--light-bg);
}

/* Alerts */
.alert {
    border-radius: 8px;
    border: 1px solid;
    padding: 1rem 1.5rem;
    box-shadow: var(--card-shadow);
    animation: slideInDown 0.3s ease-out;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-info {
    background: #dbeafe;
    border-color: #93c5fd;
    color: #1e40af;
}

.alert-success {
    background: #d1fae5;
    border-color: #6ee7b7;
    color: #065f46;
}

.alert-danger {
    background: #fee2e2;
    border-color: #fca5a5;
    color: #991b1b;
}

.alert-warning {
    background: #fef3c7;
    border-color: #fcd34d;
    color: #92400e;
}

/* Forms */
.form-control, .form-select {
    border-radius: 6px;
    border: 1px solid var(--border-color);
    padding: 0.5rem 0.75rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    outline: none;
}

.form-label {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.is-invalid {
    border-color: var(--danger-color);
}

.is-invalid:focus {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.invalid-feedback {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Login Page */
.login-container {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    max-width: 450px;
    width: 100%;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--card-hover-shadow);
    overflow: hidden;
    animation: fadeInUp 0.4s ease-out;
    border: 1px solid var(--border-color);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    background: var(--primary-color);
    color: white;
    padding: 2rem;
    text-align: center;
}

.login-header h2 {
    margin: 0;
    font-weight: 700;
}

.login-body {
    padding: 2rem;
}

/* Dashboard Cards */
.dashboard-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.dashboard-card:hover {
    box-shadow: var(--card-hover-shadow);
}

.dashboard-card h3 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

/* Stats Cards */
.stat-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    text-align: center;
    border: 1px solid var(--border-color);
}

.stat-card:hover {
    box-shadow: var(--card-hover-shadow);
}

.stat-card .stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-card .stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Badge */
.badge {
    border-radius: 6px;
    padding: 0.25rem 0.75rem;
    font-weight: 500;
    font-size: 0.75rem;
}

.bg-primary {
    background-color: var(--primary-color) !important;
}

.bg-danger {
    background-color: var(--danger-color) !important;
}

.bg-success {
    background-color: var(--success-color) !important;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .table thead th,
    .table tbody td {
        padding: 0.75rem 0.5rem;
        font-size: 0.875rem;
    }
}

/* Utility Classes */
.text-primary {
    color: var(--primary-color) !important;
}

.text-secondary {
    color: var(--text-secondary) !important;
}

.text-muted {
    color: var(--text-secondary) !important;
}

.border {
    border: 1px solid var(--border-color) !important;
}

.shadow {
    box-shadow: var(--card-shadow) !important;
}

.shadow-lg {
    box-shadow: var(--card-hover-shadow) !important;
}

/* Widget modal styling: subtle shadow, rounded corners and avoid heavy backdrop */
.widget-modal .modal-content {
    border-radius: 14px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.12);
}

.widget-modal .modal-backdrop {
    display: none;
}

/* Small visual touch for color inputs in forms */
.form-control-color {
    height: 2.25rem;
    width: 3.5rem;
    padding: 0.15rem;
}
/* Custom close button styling - make it look like a proper cross */
.btn-close {
    background: none !important;
    border: none !important;
    width: 1.5rem !important;
    height: 1.5rem !important;
    padding: 0 !important;
    position: relative !important;
    opacity: 0.6 !important;
    transition: all 0.2s ease !important;
}

.btn-close:hover {
    opacity: 1 !important;
    transform: scale(1.1) !important;
}

.btn-close::before,
.btn-close::after {
    content: "" !important;
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    width: 16px !important;
    height: 2px !important;
    background-color: currentColor !important;
    transform: translate(-50%, -50%) rotate(45deg) !important;
    transition: all 0.2s ease !important;
}

.btn-close::after {
    transform: translate(-50%, -50%) rotate(-45deg) !important;
}

.btn-close:focus {
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.25) !important;
    outline: none !important;
}