/* Enterprise UI Base */
:root {
    --primary-color: #2563eb; /* Tailwind blue-600 */
    --primary-hover: #1d4ed8; /* Tailwind blue-700 */
    --primary-light: #eff6ff; /* Tailwind blue-50 */
    --success-color: #10b981; /* Tailwind emerald-500 */
    --warning-color: #f59e0b; /* Tailwind amber-500 */
    --error-color: #ef4444;   /* Tailwind red-500 */
    --heading-color: #0f172a; /* Tailwind slate-900 */
    --text-color: #334155;    /* Tailwind slate-700 */
    --text-secondary: #64748b;/* Tailwind slate-500 */
    --border-color: #e2e8f0;  /* Tailwind slate-200 */
    --bg-color: #f8fafc;      /* Tailwind slate-50 */
    --bg-container: #ffffff;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'SF Pro Text', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--heading-color);
    font-weight: 600;
    letter-spacing: -0.025em;
}

/* Navbar overrides */
.navbar {
    background-color: var(--bg-container) !important;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    padding: 0.75rem 1.5rem;
}
.navbar-brand {
    color: var(--heading-color) !important;
    font-weight: 700;
    font-size: 1.25rem;
}
.navbar .btn-outline-light {
    color: var(--text-secondary);
    border-color: var(--border-color);
}
.navbar .btn-outline-light:hover {
    color: var(--heading-color);
    background-color: var(--bg-color);
    border-color: #cbd5e1;
}

/* Cards */
.card {
    background: var(--bg-container);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: hidden;
    margin-bottom: 1.5rem;
}
.card:hover {
    box-shadow: var(--shadow-md);
}
.card-header {
    background: var(--bg-container);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    color: var(--heading-color);
    font-size: 1.1rem;
}
.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    font-weight: 500;
    border-radius: var(--radius-md);
    padding: 0.5rem 1.25rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    letter-spacing: 0.01em;
}
.btn:focus, .btn:active {
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
}
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    box-shadow: 0 1px 2px rgba(37, 99, 235, 0.2);
}
.btn-primary:hover, .btn-primary:focus {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.25);
}
.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}
.btn-outline-primary:hover {
    background-color: var(--primary-light);
    color: var(--primary-hover);
}
.btn-success { background-color: var(--success-color); border-color: var(--success-color); color: white; }
.btn-success:hover { background-color: #059669; border-color: #059669; }
.btn-danger { background-color: var(--error-color); border-color: var(--error-color); color: white; }
.btn-danger:hover { background-color: #dc2626; border-color: #dc2626; }
.btn-warning { background-color: var(--warning-color); border-color: var(--warning-color); color: white; }
.btn-warning:hover { background-color: #d97706; border-color: #d97706; }

/* Custom Select Dropdown */
.custom-select-wrapper {
    position: relative;
    user-select: none;
    width: 100%;
}
.custom-select {
    position: relative;
    display: flex;
    flex-direction: column;
}
.custom-select__trigger {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px 0 16px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--heading-color);
    height: 48px;
    background: var(--bg-color);
    cursor: pointer;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition);
}
.custom-select__trigger:hover { 
    border-color: #cbd5e1;
    background: #ffffff;
}
.custom-select__trigger::after {
    content: '';
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    width: 6px;
    height: 6px;
    border-right: 2px solid var(--text-secondary);
    border-bottom: 2px solid var(--text-secondary);
    transition: var(--transition);
}
.custom-select.open .custom-select__trigger::after { transform: translateY(-50%) rotate(-135deg); }
.custom-options {
    position: absolute;
    display: block;
    top: 100%;
    left: 0;
    right: 0;
    border: 1px solid var(--border-color);
    background: #ffffff;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    z-index: 1000;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    margin-top: 8px;
    padding: 8px;
}
.custom-select.open .custom-options {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
    transform: translateY(0);
}
.custom-option {
    position: relative;
    display: block;
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    border-radius: var(--radius-sm);
    margin-bottom: 2px;
}
.custom-option:hover { background-color: var(--bg-color); color: var(--heading-color); }
.custom-option.selected {
    color: var(--primary-color);
    background-color: var(--primary-light);
}

/* Custom Modal */
.custom-modal-backdrop {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    z-index: 1050;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}
.custom-modal {
    background: var(--bg-container);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 440px;
    max-width: 92%;
    padding: 2rem;
    animation: modalShow 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    max-height: calc(100vh - 4rem);
    display: flex;
    flex-direction: column;
}
@keyframes modalShow {
    from { transform: scale(0.95) translateY(10px); opacity: 0; }
    to { transform: scale(1) translateY(0); opacity: 1; }
}
.custom-modal-title {
    margin: 0 0 1.25rem 0;
    color: var(--heading-color);
    font-size: 1.25rem;
    font-weight: 700;
    flex-shrink: 0;
}
.custom-modal-content {
    overflow-y: auto;
    padding-right: 0.5rem;
    /* Custom scrollbar for modal content */
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) #f1f5f9;
}
.custom-modal-content::-webkit-scrollbar {
    width: 6px;
}
.custom-modal-content::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 10px;
}
.custom-modal-content::-webkit-scrollbar-thumb {
    background-color: var(--primary-color);
    border-radius: 10px;
}

.custom-modal-footer {
    margin-top: 1.75rem;
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    flex-shrink: 0;
}
.custom-modal-footer .btn {
    margin-left: 0;
}

/* Animations Utilities */
.fade-in-up {
    animation: fadeInUp 0.5s ease-out forwards;
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Tables */
.table {
    border-collapse: separate;
    border-spacing: 0;
}
.table thead th {
    border-bottom: 2px solid var(--border-color);
    color: var(--heading-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    padding: 1rem;
    background: var(--bg-color);
}
.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
}
.table-hover tbody tr:hover {
    background-color: var(--bg-color);
}