/* Modern UI Enhancements - İşe Giriş Çıkış Portal */

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --success-gradient: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --danger-gradient: linear-gradient(135deg, #ee0979 0%, #ff6a00 100%);
    --info-gradient: linear-gradient(135deg, #3494e6 0%, #ec6ead 100%);
    --warning-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --dark-gradient: linear-gradient(135deg, #434343 0%, #000000 100%);
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.2);
    
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Improvements */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    color: #2d3748;
}

/* Enhanced Navbar */
.navbar {
    background: var(--dark-gradient) !important;
    box-shadow: var(--shadow-md);
    padding: 1rem 0;
    transition: var(--transition-normal);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
    transition: var(--transition-fast);
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 8px;
    transition: var(--transition-fast);
    margin: 0 0.25rem;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.1);
    transition: var(--transition-normal);
}

.nav-link:hover::before {
    left: 0;
}

.nav-link:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-2px);
}

.nav-link.active {
    background: rgba(255,255,255,0.15);
}

/* Enhanced Cards */
.card {
    border: none;
    border-radius: 16px;
    transition: var(--transition-normal);
    overflow: hidden;
    background: white;
    box-shadow: var(--shadow-md);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
    padding: 1.25rem;
    border: none;
}

.card-body {
    padding: 1.5rem;
}

/* Stat Cards with Gradients */
.stat-card {
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    cursor: pointer;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.stat-card:hover::before {
    transform: scaleX(1);
}

.stat-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.stat-card .fs-4 {
    font-size: 2rem !important;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: 0.5rem;
}

/* Enhanced Tables */
.table-responsive {
    border-radius: 12px;
    overflow: hidden;
}

.table {
    margin-bottom: 0;
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    padding: 0.5rem 0.75rem;
    border: none;
    position: sticky;
    top: 0;
    z-index: 10;
}

.table tbody tr {
    transition: var(--transition-fast);
    border-bottom: 1px solid #e2e8f0;
}

.table tbody tr:hover {
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    transform: scale(1.01);
    box-shadow: var(--shadow-sm);
}

.table tbody td {
    padding: 0.5rem 0.75rem;
    vertical-align: middle;
}

.table-striped > tbody > tr:nth-of-type(odd) {
    background-color: rgba(247, 250, 252, 0.5);
}

.table-striped > tbody > tr:nth-of-type(odd):hover {
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%);
}

/* Enhanced Buttons */
.btn {
    border-radius: 10px;
    font-weight: 600;
    padding: 0.625rem 1.5rem;
    transition: var(--transition-normal);
    border: none;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

.btn:active {
    transform: translateY(0);
}

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

.btn-primary:hover {
    background: var(--primary-gradient);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

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

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

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

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

.btn-outline-primary {
    border: 2px solid;
    border-image: var(--primary-gradient) 1;
    color: #667eea;
    background: transparent;
}

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

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    letter-spacing: 0.3px;
}

/* Table buttons - more compact */
.table .btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.7rem;
    white-space: nowrap;
    line-height: 1.2;
    vertical-align: middle;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Ensure all table cells align properly */
.table tbody td {
    vertical-align: middle !important;
    line-height: 1.3;
    padding: 0.5rem 0.75rem !important;
}

.table thead th {
    vertical-align: middle;
    padding: 0.5rem 0.75rem !important;
}

/* Enhanced Forms */
.form-control,
.form-select {
    border-radius: 10px;
    border: 2px solid #e2e8f0;
    padding: 0.75rem 1rem;
    transition: var(--transition-fast);
    font-size: 0.95rem;
}

.form-control:focus,
.form-select:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    outline: none;
}

.form-label {
    font-weight: 600;
    color: #4a5568;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

/* Enhanced Alerts */
.alert {
    border: none;
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid;
    animation: slideInDown 0.5s ease-out;
}

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

.alert-success {
    background: linear-gradient(135deg, rgba(17, 153, 142, 0.1) 0%, rgba(56, 239, 125, 0.1) 100%);
    border-left-color: #11998e;
    color: #065f46;
}

.alert-danger {
    background: linear-gradient(135deg, rgba(238, 9, 121, 0.1) 0%, rgba(255, 106, 0, 0.1) 100%);
    border-left-color: #ee0979;
    color: #7f1d1d;
}

.alert-info {
    background: linear-gradient(135deg, rgba(52, 148, 230, 0.1) 0%, rgba(236, 110, 173, 0.1) 100%);
    border-left-color: #3494e6;
    color: #1e3a8a;
}

/* Badges */
.badge {
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

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

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

.badge.bg-info {
    background: var(--info-gradient) !important;
}

.badge.bg-warning {
    background: var(--warning-gradient) !important;
}

/* Modals */
.modal-content {
    border-radius: 16px;
    border: none;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    background: var(--primary-gradient);
    color: white;
    border-radius: 16px 16px 0 0;
    border: none;
    padding: 1.5rem;
}

.modal-header .btn-close {
    filter: invert(1);
}

.modal-body {
    padding: 2rem;
}

/* Loading States */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 3px solid #667eea;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Page Transitions */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.container-fluid {
    animation: fadeIn 0.5s ease-out;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

/* Additional Interactive Elements */
.btn-group .btn {
    border-radius: 0;
}

.btn-group .btn:first-child {
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
}

.btn-group .btn:last-child {
    border-top-right-radius: 10px;
    border-bottom-right-radius: 10px;
}

/* Enhanced Headings */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.5px;
    color: #1a202c;
}

h3, h4, h5 {
    position: relative;
    padding-bottom: 0.5rem;
}

h3::after, h4::after, h5::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

/* Enhanced Form Groups */
.form-group {
    margin-bottom: 1.5rem;
}

/* Status Indicators */
.status-pending {
    color: #f59e0b;
}

.status-approved {
    color: #10b981;
}

.status-rejected {
    color: #ef4444;
}

/* Responsive Improvements */
@media (max-width: 768px) {
    .card {
        margin-bottom: 1rem;
    }
    
    .stat-card:hover {
        transform: none;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .nav-link {
        padding: 0.75rem 1rem !important;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .btn,
    .card-header {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}