/* LMS Platform Custom Styles */

/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
}
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0rem 0;
    transition: all 0.3s ease;
}
/* Navigation */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}
.navbar-brand img {
    height: 70px;
    width: auto;
    margin-right: 15px;
    background: white;
    border-radius: 50%;
    padding: 0px;
}

/* Add gap between logo and nav menu */
.navbar-nav.me-auto {
    margin-left: 7rem;
}
.navbar-brand span {
    color: white;
    font-weight: 700;
    margin-left: 8px;
}
.navbar-nav .nav-link {
    font-weight: 500;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: #f8f9fa !important;
    transform: translateY(-1px);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 500px;
    display: flex;
    align-items: center;
}

.hero-section h1 {
    animation: fadeInUp 1s ease-out;
}

.hero-section p {
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-section .btn {
    animation: fadeInUp 1s ease-out 0.4s both;
}

/* Cards */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.15);
}

/* Course Cards */
.course-card {
    height: 100%;
    overflow: hidden;
}

.course-card .card-img-top {
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.course-card:hover .card-img-top {
    transform: scale(1.05);
}

/* Feature Boxes */
.feature-box {
    padding: 2rem 1rem;
    text-align: center;
    height: 100%;
}

.feature-box i {
    margin-bottom: 1rem;
    color: #667eea;
}

/* Referral Stats */
.referral-stat {
    padding: 1rem;
    text-align: center;
}

.referral-stat h3 {
    margin-bottom: 0.5rem;
    font-weight: 700;
}

/* Forms */
.form-control {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

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

.form-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 0.75rem;
}

/* Buttons */
.btn {
    border-radius: 10px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

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

.btn-success {
    background: linear-gradient(135deg, #56ab2f 0%, #a8e6cf 100%);
    border: none;
}

.btn-info {
    background: linear-gradient(135deg, #2193b0 0%, #6dd5ed 100%);
    border: none;
}

/* Stats Cards */
.border-left-primary {
    border-left: 0.25rem solid #667eea !important;
}

.border-left-success {
    border-left: 0.25rem solid #28a745 !important;
}

.border-left-info {
    border-left: 0.25rem solid #17a2b8 !important;
}

.border-left-warning {
    border-left: 0.25rem solid #ffc107 !important;
}

.text-xs {
    font-size: 0.75rem;
}

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

/* Tables */
.table {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 0 1rem rgba(0, 0, 0, 0.1);
}

.table th {
    background: #f8f9fa;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.875rem;
    color: #495057;
    border: none;
}

.table td {
    border: none;
    border-bottom: 1px solid #e9ecef;
    vertical-align: middle;
}

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

.table tbody tr:hover {
    background-color: #f8f9fa;
    transform: scale(1.01);
}

/* Alerts */
.alert {
    border: none;
    border-radius: 10px;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    color: #0c5460;
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    color: #856404;
}

/* Footer */
footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 30px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* Video Player Styles */
.video-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    background: #000;
    border-radius: 0.5rem;
    overflow: hidden;
}

.video-player {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    border-radius: 0.5rem;
    overflow: hidden;
}

.video-watermark {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 12px;
    z-index: 10;
}

/* Progress Bars */
.progress {
    height: 8px;
    border-radius: 10px;
    background: #e9ecef;
}

.progress-bar {
    border-radius: 10px;
    transition: width 0.6s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        min-height: 300px;
        text-align: center;
    }
    
    .hero-section .display-4 {
        font-size: 2rem;
    }
    
    .feature-box {
        margin-bottom: 2rem;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
}

@media (max-width: 576px) {
    .card {
        margin-bottom: 1rem;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .card {
        background-color: #2d3748;
        color: #e2e8f0;
    }
    
    .form-control {
        background-color: #4a5568;
        border-color: #718096;
        color: #e2e8f0;
    }
    
    .table {
        color: #e2e8f0;
    }
    
    .table th {
        background-color: #4a5568;
        color: #e2e8f0;
    }
}

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

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

.shadow-custom {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.rounded-custom {
    border-radius: 15px;
}

.border-custom {
    border: 2px solid transparent;
    background: linear-gradient(white, white) padding-box,
                linear-gradient(135deg, #667eea 0%, #764ba2 100%) border-box;
}

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

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
}

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