/**
 * Custom CSS untuk Sistem Surat Keterangan Sekolah
 * Enhanced Version with Beautiful Backgrounds and Responsive Design
 */

/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
}

/* Background Patterns */
.bg-pattern-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-attachment: fixed;
}

.bg-pattern-2 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    background-attachment: fixed;
}

.bg-pattern-3 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    background-attachment: fixed;
}

/* Hero Section */
.hero-section {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="1" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="1" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
}

/* Floating Shapes Animation */
.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.shape {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.shape:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.shape:nth-child(2) {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.shape:nth-child(3) {
    width: 60px;
    height: 60px;
    top: 80%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* Glass Morphism Cards */
.card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border-radius: 20px;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.card-header {
    background: transparent !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px 20px 0 0 !important;
}

/* Enhanced Buttons */
.btn {
    border-radius: 15px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    border: none;
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, #218838 0%, #1ea085 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(40, 167, 69, 0.4);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, #ffc107 0%, #ff8c00 100%);
    border: none;
    color: white;
}

.btn-warning:hover {
    background: linear-gradient(135deg, #e0a800 0%, #e67e00 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 193, 7, 0.4);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, #17a2b8 0%, #6f42c1 100%);
    border: none;
    color: white;
}

.btn-info:hover {
    background: linear-gradient(135deg, #138496 0%, #5a32a3 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(23, 162, 184, 0.4);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
    border: none;
    color: white;
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #5a6268 0%, #3d4142 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(108, 117, 125, 0.4);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    border: none;
    color: white;
}

.btn-danger:hover {
    background: linear-gradient(135deg, #c82333 0%, #a71e2a 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(220, 53, 69, 0.4);
    color: white;
}

/* Enhanced Form Controls */
.form-control {
    border-radius: 15px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.9);
    padding: 15px 20px;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    background: white;
    transform: translateY(-2px);
}

.form-select {
    border-radius: 15px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.9);
    padding: 15px 20px;
}

.form-select:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

/* Input Groups */
.input-group-text {
    border-radius: 15px 0 0 15px;
    border: 2px solid rgba(102, 126, 234, 0.2);
    border-right: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

/* Enhanced Alerts */
.alert {
    border-radius: 15px;
    border: none;
    backdrop-filter: blur(10px);
    font-weight: 500;
}

.alert-success {
    background: rgba(40, 167, 69, 0.9);
    color: white;
}

.alert-danger {
    background: rgba(220, 53, 69, 0.9);
    color: white;
}

.alert-info {
    background: rgba(23, 162, 184, 0.9);
    color: white;
}

.alert-warning {
    background: rgba(255, 193, 7, 0.9);
    color: white;
}

/* Admin Sidebar */
.sidebar {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
}

.sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
    pointer-events: none;
}

.sidebar .nav-link {
    color: rgba(255,255,255,0.8);
    border-radius: 12px;
    margin: 3px 0;
    padding: 12px 16px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    color: white !important;
    background: rgba(255,255,255,0.2) !important;
    transform: translateX(8px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.sidebar .nav-link i {
    width: 20px;
    text-align: center;
}

/* Statistics Cards */
.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 20px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(30px, -30px);
}

.stat-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
}

.stat-card:nth-child(2) {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
}

.stat-card:nth-child(3) {
    background: linear-gradient(135deg, #ffc107 0%, #fd7e14 100%);
}

.stat-card:nth-child(4) {
    background: linear-gradient(135deg, #dc3545 0%, #e83e8c 100%);
}

/* Tables */
.table {
    border-radius: 15px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.9);
}

.table thead th {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    font-weight: 600;
    padding: 15px;
}

.table tbody tr {
    transition: all 0.3s ease;
}

.table tbody tr:hover {
    background: rgba(102, 126, 234, 0.1);
    transform: scale(1.01);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(102, 126, 234, 0.05);
}

/* Badges */
.badge {
    border-radius: 8px;
    font-weight: 600;
    padding: 8px 12px;
}

/* List Groups */
.list-group-item {
    border: none;
    border-radius: 12px !important;
    margin-bottom: 8px;
    background: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
}

.list-group-item:hover {
    background: rgba(102, 126, 234, 0.1);
    transform: translateX(5px);
}

/* Animations */
.fade-in {
    animation: fadeIn 0.8s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-in {
    animation: slideIn 0.6s ease-out;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* Utility Classes */
.text-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.shadow-soft {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
}

.border-radius-lg {
    border-radius: 20px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
}

/* DataTables Styling */
.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius: 8px;
    margin: 0 2px;
    transition: all 0.3s ease;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white !important;
    border: none;
}

.dataTables_wrapper .dataTables_filter input {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    padding: 8px 12px;
}

.dataTables_wrapper .dataTables_length select {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    padding: 8px 12px;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hero-section {
        padding: 60px 0;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 992px) {
    .sidebar {
        min-height: auto;
    }
    
    .stat-card {
        margin-bottom: 1rem;
    }
    
    .card {
        margin-bottom: 20px;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 40px 0;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 10px;
    }
    
    .card {
        border-radius: 15px;
    }
    
    .form-control {
        padding: 12px 16px;
    }
}

@media (max-width: 576px) {
    .hero-section h1 {
        font-size: 1.8rem;
    }
    
    .hero-section {
        padding: 30px 0;
    }
    
    .card {
        margin: 10px;
        border-radius: 12px;
    }
    
    .btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
}

/* Print Styles */
@media print {
    .sidebar,
    .btn,
    .alert,
    nav,
    .card-header,
    .floating-shapes {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
        background: white;
    }
    
    body {
        font-size: 12pt;
        background: white;
    }
    
    .main-content {
        background: white;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .card {
        background: rgba(45, 55, 72, 0.95);
        color: #e2e8f0;
        border-color: rgba(255, 255, 255, 0.1);
    }
    
    .table {
        color: #e2e8f0;
        background: rgba(45, 55, 72, 0.9);
    }
    
    .form-control {
        background: rgba(74, 85, 104, 0.9);
        border-color: rgba(255, 255, 255, 0.2);
        color: #e2e8f0;
    }
    
    .form-control:focus {
        background: rgba(74, 85, 104, 1);
        border-color: #667eea;
        color: #e2e8f0;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .card {
        border: 2px solid #000;
    }
    
    .btn {
        border: 2px solid #000;
    }
    
    .form-control {
        border: 2px solid #000;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating-shapes {
        display: none;
    }
}