@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --kiboko-green: #76bc21;
    --kiboko-blue: #009ada;
    --kiboko-dark: #0f172a;
    --kiboko-light: #f8fafc;
    --kiboko-border: #e2e8f0;
    --kiboko-gray: #64748b;
    --kiboko-gray-light: #94a3b8;

    --grad-primary: linear-gradient(135deg, var(--kiboko-blue) 0%, var(--kiboko-green) 100%);
    --grad-hover: linear-gradient(135deg, var(--kiboko-green) 0%, var(--kiboko-blue) 100%);
    --grad-light: linear-gradient(135deg, rgba(0,154,218,0.08) 0%, rgba(118,188,33,0.08) 100%);
    --grad-card: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);

    --shadow-sm: 0 2px 4px rgba(0,0,0,0.02);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.025);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.05), 0 10px 10px -5px rgba(0,0,0,0.02);
    --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,0.15);

    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --radius-2xl: 32px;

    --transition-fast: 0.2s cubic-bezier(0.4,0,0.2,1);
    --transition-base: 0.3s cubic-bezier(0.4,0,0.2,1);
    --transition-slow: 0.5s cubic-bezier(0.4,0,0.2,1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #f8fafc;
    color: var(--kiboko-dark);
    line-height: 1.6;
}

/* Gradient Text */
.gradient-text {
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn-primary {
    background: var(--grad-primary);
    border: none;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: var(--transition-base);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--grad-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-primary {
    border: 2px solid var(--kiboko-blue);
    color: var(--kiboko-blue);
    background: transparent;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: var(--transition-base);
}

.btn-outline-primary:hover {
    background: var(--grad-primary);
    border-color: transparent;
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Cards */
.card {
    border: none;
    border-radius: var(--radius-lg);
    background: var(--grad-card);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* Navigation */
.navbar {
    padding: 1rem 0;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.9) !important;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-link {
    font-weight: 500;
    color: var(--kiboko-dark);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--kiboko-blue);
}

/* Hero Section */
.hero-section {
    min-height: 75vh;
    display: flex;
    align-items: center;
    background: var(--grad-light);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(0,154,218,0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(5%, 5%) rotate(120deg); }
    66% { transform: translate(-5%, -5%) rotate(240deg); }
}

/* Feature Cards */
.feature-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--grad-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--kiboko-blue);
    transition: var(--transition-base);
}

.feature-card:hover .feature-icon {
    background: var(--grad-primary);
    color: white;
    transform: scale(1.1) rotate(360deg);
}

/* Course Cards */
.course-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
    height: 100%;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.course-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-base);
}

.course-card:hover .course-image img {
    transform: scale(1.1);
}

.course-level {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    background: white;
    box-shadow: var(--shadow-md);
}

.course-level.beginner {
    color: #28a745;
}

.course-level.intermediate {
    color: #ffc107;
}

.course-level.advanced {
    color: #dc3545;
}

.course-content {
    padding: 1.5rem;
}

.course-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.course-meta {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
    color: var(--kiboko-gray);
    font-size: 0.875rem;
}

.course-meta i {
    margin-right: 0.25rem;
    color: var(--kiboko-blue);
}

/* Dashboard Styles */
.sidebar {
    min-height: 100vh;
    background: white;
    box-shadow: var(--shadow-lg);
}

.sidebar .nav-link {
    color: var(--kiboko-gray);
    padding: 0.75rem 1.5rem;
    margin: 0.25rem 0;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background: var(--grad-light);
    color: var(--kiboko-blue);
}

.sidebar .nav-link i {
    margin-right: 0.75rem;
    font-size: 1.25rem;
}

/* Stat Cards */
.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
}

.stat-details h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--kiboko-dark);
}

.stat-details p {
    margin: 0;
    color: var(--kiboko-gray);
    font-size: 0.875rem;
}

/* Progress Bar */
.progress {
    background-color: #e9ecef;
    border-radius: 100px;
    overflow: hidden;
}

.progress-bar {
    background: var(--grad-primary);
    transition: width var(--transition-base);
}

.progress-bar.bg-gradient {
    background: var(--grad-primary);
}

/* Avatar */
.avatar-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

/* Notifications */
.notification-dropdown {
    width: 300px;
    padding: 0;
    border: none;
    box-shadow: var(--shadow-xl);
}

.notification-dropdown .dropdown-header {
    background: var(--grad-light);
    font-weight: 600;
}

.notification-dropdown .dropdown-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--kiboko-border);
    white-space: normal;
}

.notification-dropdown .dropdown-item:last-child {
    border-bottom: none;
}

.notification-dropdown .dropdown-item:hover {
    background: var(--grad-light);
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--grad-light);
}

.timeline-item {
    position: relative;
    padding-bottom: 1.5rem;
}

.timeline-marker {
    position: absolute;
    left: -2rem;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: white;
    border: 3px solid var(--kiboko-blue);
}

.timeline-content {
    padding-left: 1rem;
}

/* Admin Dashboard */
.stat-card-admin {
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    color: white;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition-base);
}

.stat-card-admin:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.gradient-blue {
    background: linear-gradient(135deg, #009ada, #0077b6);
}

.gradient-green {
    background: linear-gradient(135deg, #76bc21, #5a9e1a);
}

.gradient-orange {
    background: linear-gradient(135deg, #ff9f43, #ff7f2a);
}

.gradient-purple {
    background: linear-gradient(135deg, #a55eea, #8a4fd3);
}

.gradient-pink {
    background: linear-gradient(135deg, #ff6b6b, #ff4757);
}

.gradient-teal {
    background: linear-gradient(135deg, #20c997, #12b886);
}

/* Activity Timeline */
.activity-timeline {
    max-height: 400px;
    overflow-y: auto;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--kiboko-border);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

/* Dark Mode */
.dark-mode {
    background-color: #1a1a1a;
    color: #ffffff;
}

.dark-mode .navbar,
.dark-mode .card,
.dark-mode .sidebar {
    background: #2d2d2d !important;
    color: #ffffff;
}

.dark-mode .text-secondary {
    color: #a0a0a0 !important;
}

.dark-mode .bg-light {
    background-color: #333333 !important;
}

.dark-mode .table {
    color: #ffffff;
}

.dark-mode .table thead th {
    border-bottom-color: #444;
}

.dark-mode .table td,
.dark-mode .table th {
    border-top-color: #444;
}

/* Dark Mode Toggle */
.dark-mode-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
}

.dark-mode-toggle button {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: white;
    border: none;
    box-shadow: var(--shadow-xl);
    cursor: pointer;
    transition: var(--transition-base);
}

.dark-mode-toggle button:hover {
    transform: scale(1.1);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        min-height: auto;
    }
    
    .stat-card {
        margin-bottom: 1rem;
    }
    
    .hero-section {
        min-height: auto;
        padding: 4rem 0;
    }
    
    .dark-mode-toggle {
        bottom: 1rem;
        right: 1rem;
    }
}

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

.animate-fade-in {
    animation: fadeIn 1s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-slide-up {
    animation: slideUp 1s ease-out;
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--kiboko-border);
    border-top-color: var(--kiboko-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Form Styles */
.form-control,
.form-select {
    border: 2px solid var(--kiboko-border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--kiboko-blue);
    box-shadow: 0 0 0 3px rgba(0,154,218,0.1);
    outline: none;
}

.input-group-text {
    background: white;
    border: 2px solid var(--kiboko-border);
    border-right: none;
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    color: var(--kiboko-gray);
}

.input-group .form-control {
    border-left: none;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* Table Styles */
.table {
    margin-bottom: 0;
}

.table thead th {
    border-bottom: 2px solid var(--kiboko-border);
    color: var(--kiboko-gray);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
}

.table td {
    vertical-align: middle;
    border-bottom: 1px solid var(--kiboko-border);
}

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

/* Badge Styles */
.badge {
    padding: 0.5rem 0.75rem;
    font-weight: 500;
    border-radius: 100px;
}

/* Welcome Banner */
.welcome-banner {
    background: var(--grad-light);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.welcome-banner-admin {
    background: linear-gradient(135deg, #009ada 0%, #76bc21 100%);
    color: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.welcome-banner-admin h2,
.welcome-banner-admin p {
    color: white;
}

.welcome-banner-admin p.text-secondary {
    color: rgba(255,255,255,0.9) !important;
}

/* Course Player */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.video-container iframe,
.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Certificate */
.certificate {
    background: white;
    padding: 3rem;
    border: 20px solid transparent;
    border-image: var(--grad-primary);
    border-image-slice: 1;
    text-align: center;
    box-shadow: var(--shadow-2xl);
}

.certificate h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.certificate .recipient {
    font-size: 2rem;
    font-weight: 700;
    margin: 2rem 0;
    color: var(--kiboko-blue);
}

.certificate .course-title {
    font-size: 1.5rem;
    color: var(--kiboko-green);
    margin-bottom: 2rem;
}

.certificate .date {
    color: var(--kiboko-gray);
    margin: 2rem 0;
}

.certificate .signature {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--kiboko-border);
    display: inline-block;
}

/* Lesson List */
.lesson-list {
    max-height: 600px;
    overflow-y: auto;
}

.lesson-item {
    cursor: pointer;
    transition: var(--transition-base);
}

.lesson-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.lesson-item.completed {
    border-left: 4px solid var(--kiboko-green);
}

.lesson-item.current {
    border-left: 4px solid var(--kiboko-blue);
}

/* Quiz Styles */
.quiz-question {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    margin-bottom: 1.5rem;
}

.quiz-option {
    background: var(--grad-light);
    padding: 1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: var(--transition-base);
}

.quiz-option:hover {
    background: var(--grad-primary);
    color: white;
    transform: translateX(5px);
}

.quiz-option.selected {
    background: var(--grad-primary);
    color: white;
}

.quiz-option.correct {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
}

.quiz-option.incorrect {
    background: linear-gradient(135deg, #dc3545, #c82333);
    color: white;
}

/* Progress Indicators */
.progress-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: conic-gradient(var(--kiboko-blue) 0deg, var(--kiboko-border) 0deg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    position: relative;
}

.progress-circle::before {
    content: '';
    position: absolute;
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
}

.progress-circle span {
    position: relative;
    z-index: 1;
    font-size: 0.875rem;
}

/* Search Bar */
.search-bar {
    position: relative;
    max-width: 300px;
}

.search-bar input {
    padding-left: 2.5rem;
    border-radius: 100px;
}

.search-bar i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--kiboko-gray);
    z-index: 10;
}

/* Category Filters */
.category-filter {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    margin: 0 0.5rem 0.5rem 0;
    background: white;
    border: 2px solid var(--kiboko-border);
    border-radius: 100px;
    cursor: pointer;
    transition: var(--transition-base);
}

.category-filter:hover,
.category-filter.active {
    background: var(--grad-primary);
    border-color: transparent;
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Print Styles for Certificates */
@media print {
    .no-print {
        display: none;
    }
    
    .certificate {
        border: none;
        box-shadow: none;
        padding: 0;
    }
    
    body {
        background: white;
    }
}
/* Additional styles for course cards */
.course-card {
    transition: all 0.3s ease;
    border: none;
    border-radius: 16px;
    overflow: hidden;
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,154,218,0.15);
}

.course-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.course-card:hover .course-image img {
    transform: scale(1.1);
}

.default-thumbnail {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--kiboko-blue) 0%, var(--kiboko-green) 100%);
    color: white;
    font-size: 4rem;
}

.course-level {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 5px 15px;
    border-radius: 25px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 2;
}

.course-level.beginner {
    color: #28a745;
    border-left: 3px solid #28a745;
}

.course-level.intermediate {
    color: #ffc107;
    border-left: 3px solid #ffc107;
}

.course-level.advanced {
    color: #dc3545;
    border-left: 3px solid #dc3545;
}

.course-content {
    padding: 1.5rem;
}

.course-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #2d3748;
    line-height: 1.4;
}

.course-meta {
    display: flex;
    gap: 15px;
    margin: 15px 0;
    color: #64748b;
    font-size: 0.9rem;
}

.course-meta i {
    margin-right: 5px;
    color: var(--kiboko-blue);
}

.category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.category-filter {
    padding: 8px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 30px;
    background: white;
    color: #4a5568;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-filter:hover,
.category-filter.active {
    background: linear-gradient(135deg, var(--kiboko-blue) 0%, var(--kiboko-green) 100%);
    border-color: transparent;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,154,218,0.3);
}

/* Loading spinner */
.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .course-image {
        height: 180px;
    }
    
    .course-content {
        padding: 1rem;
    }
    
    .category-filters {
        justify-content: center;
    }
}
/* Additional styles for my courses */
.course-enrollment-card {
    transition: all 0.3s ease;
    border: none;
    border-radius: 16px;
    overflow: hidden;
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    height: 100%;
}

.course-enrollment-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,154,218,0.15);
}

.course-enrollment-card .col-md-4 {
    position: relative;
    overflow: hidden;
    min-height: 180px;
}

.course-enrollment-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.course-enrollment-card:hover img {
    transform: scale(1.1);
}

.course-enrollment-card .default-thumbnail {
    width: 100%;
    height: 100%;
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--kiboko-blue) 0%, var(--kiboko-green) 100%);
    color: white;
    font-size: 3rem;
}

.progress {
    background-color: #e9ecef;
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(135deg, var(--kiboko-blue) 0%, var(--kiboko-green) 100%);
    transition: width 0.5s ease;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,154,218,0.15);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
}

.stat-details h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: #2d3748;
}

.stat-details p {
    margin: 0;
    color: #64748b;
    font-size: 0.875rem;
}

/* Progress circle */
.progress-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    font-weight: bold;
    font-size: 0.9rem;
}

.progress-circle::before {
    content: '';
    position: absolute;
    width: 40px;
    height: 40px;
    background: white;
    border-radius: 50%;
    z-index: 1;
}

.progress-circle span {
    position: relative;
    z-index: 2;
}

/* Continue learning banner */
.continue-learning {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border-left: 4px solid var(--kiboko-blue);
}

/* Activity timeline */
.activity-timeline {
    max-height: 300px;
    overflow-y: auto;
    padding-right: 10px;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid #e2e8f0;
    transition: background 0.3s ease;
}

.activity-item:hover {
    background: #f8fafc;
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

/* Filter section */
.filter-section {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

/* Responsive */
@media (max-width: 768px) {
    .course-enrollment-card .col-md-4 {
        min-height: 150px;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .stat-details h3 {
        font-size: 1.5rem;
    }
}
.course-player-header {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 1.5rem;
    border-radius: 16px;
    margin-bottom: 2rem;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    background: #000;
    border-radius: 12px;
}

.video-container iframe,
.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.no-video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.progress-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: #e9ecef;
}

.progress-circle::before {
    content: '';
    position: absolute;
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    z-index: 1;
}

.progress-circle span {
    position: relative;
    z-index: 2;
    font-weight: bold;
    color: #2d3748;
}

/* Lesson List */
.lesson-list {
    max-height: 500px;
    overflow-y: auto;
}

.lesson-list .list-group-item {
    border-left: 4px solid transparent;
    transition: all 0.3s ease;
    padding: 1rem;
}

.lesson-list .list-group-item:hover {
    background: #f8fafc;
    transform: translateX(5px);
}

.lesson-list .list-group-item.active {
    background: linear-gradient(135deg, rgba(0,154,218,0.1) 0%, rgba(118,188,33,0.1) 100%);
    border-left-color: var(--kiboko-blue);
    color: #2d3748;
}

.lesson-list .list-group-item.completed {
    border-left-color: #28a745;
    opacity: 0.8;
}

.lesson-list .list-group-item.completed .lesson-title {
    text-decoration: line-through;
    color: #6c757d;
}

.lesson-status {
    width: 30px;
    text-align: center;
}

/* Resource Items */
.resource-item {
    transition: all 0.3s ease;
    border: 2px solid #e2e8f0 !important;
    border-radius: 12px !important;
}

.resource-item:hover {
    border-color: var(--kiboko-blue) !important;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.resource-item i {
    transition: transform 0.3s ease;
}

.resource-item:hover i {
    transform: scale(1.1);
}

/* Quiz Info Card */
.quiz-info-card {
    background: linear-gradient(135deg, #fff3cd 0%, #fff8e7 100%);
    border-left: 4px solid #ffc107;
    border-radius: 12px;
    padding: 1rem;
}

/* Completion Animation */
@keyframes completePulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.completion-animation {
    animation: completePulse 0.5s ease;
}

/* Responsive */
@media (max-width: 768px) {
    .course-player-header {
        padding: 1rem;
    }
    
    .progress-circle {
        width: 50px;
        height: 50px;
    }
    
    .progress-circle::before {
        width: 40px;
        height: 40px;
    }
}
.quiz-card {
    transition: all 0.3s ease;
    border: none;
    border-radius: 16px;
    overflow: hidden;
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    height: 100%;
}

.quiz-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,154,218,0.15);
}

.quiz-header {
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--kiboko-blue) 0%, var(--kiboko-green) 100%);
    color: white;
    position: relative;
}

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

.quiz-header .course-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255,255,255,0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
}

.quiz-body {
    padding: 1.5rem;
}

.quiz-stats {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: #f8fafc;
    border-radius: 12px;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--kiboko-dark);
    display: block;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--kiboko-gray);
}

.quiz-meta {
    margin-bottom: 1rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--kiboko-gray);
    font-size: 0.9rem;
}

.meta-item i {
    width: 20px;
    color: var(--kiboko-blue);
}

.quiz-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.quiz-actions .btn {
    flex: 1;
    padding: 0.5rem;
    font-size: 0.85rem;
}

.status-badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-active {
    background: #d4edda;
    color: #155724;
}

.status-inactive {
    background: #f8d7da;
    color: #721c24;
}

/* Table styles */
.table-quiz-title {
    font-weight: 600;
    color: var(--kiboko-dark);
}

.table-course-title {
    font-size: 0.85rem;
    color: var(--kiboko-gray);
}

.table-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
}

.table-stats span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Filter section */
.filter-section {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

/* Responsive */
@media (max-width: 768px) {
    .quiz-header h3 {
        font-size: 1rem;
    }
    
    .quiz-stats {
        flex-wrap: wrap;
    }
    
    .stat-item {
        flex: 1 1 50%;
        margin-bottom: 0.5rem;
    }
}
.quiz-edit-header {
    background: linear-gradient(135deg, var(--kiboko-blue) 0%, var(--kiboko-green) 100%);
    color: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-lg);
}

.quiz-edit-header h2 {
    color: white;
    margin-bottom: 0.5rem;
}

.quiz-edit-header p {
    color: rgba(255,255,255,0.9);
    margin-bottom: 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-box {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-base);
}

.stat-box:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.stat-box .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--kiboko-blue);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-box .stat-label {
    color: var(--kiboko-gray);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.stat-box .stat-desc {
    font-size: 0.8rem;
    color: var(--kiboko-gray-light);
}

.settings-section {
    background: white;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-md);
}

.settings-section h5 {
    color: var(--kiboko-dark);
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--kiboko-border);
}

.settings-section h5 i {
    color: var(--kiboko-blue);
    margin-right: 0.5rem;
}

.form-label {
    font-weight: 500;
    color: var(--kiboko-dark);
    margin-bottom: 0.5rem;
}

.form-control, .form-select {
    border: 2px solid var(--kiboko-border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 1rem;
    transition: var(--transition-fast);
}

.form-control:focus, .form-select:focus {
    border-color: var(--kiboko-blue);
    box-shadow: 0 0 0 3px rgba(0,154,218,0.1);
}

.input-group-text {
    background: var(--kiboko-light);
    border: 2px solid var(--kiboko-border);
    border-right: none;
    color: var(--kiboko-gray);
}

.input-group .form-control {
    border-left: none;
}

.input-group .form-control:focus {
    border-left: none;
}

.btn-save {
    background: var(--grad-primary);
    border: none;
    color: white;
    padding: 0.75rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: var(--transition-base);
}

.btn-save:hover {
    background: var(--grad-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-preview {
    background: white;
    border: 2px solid var(--kiboko-blue);
    color: var(--kiboko-blue);
    padding: 0.75rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: var(--transition-base);
}

.btn-preview:hover {
    background: var(--grad-primary);
    border-color: transparent;
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.quick-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.quick-action-btn {
    background: var(--kiboko-light);
    border: 1px solid var(--kiboko-border);
    color: var(--kiboko-dark);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.quick-action-btn:hover {
    background: var(--grad-light);
    border-color: var(--kiboko-blue);
    color: var(--kiboko-blue);
    transform: translateY(-2px);
}

.quick-action-btn i {
    font-size: 1rem;
}

.status-badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-active {
    background: #d4edda;
    color: #155724;
}

.status-inactive {
    background: #f8d7da;
    color: #721c24;
}

/* Toggle switch styling */
.form-switch .form-check-input {
    width: 3em;
    height: 1.5em;
    margin-right: 0.5rem;
    cursor: pointer;
}

.form-switch .form-check-input:checked {
    background-color: var(--kiboko-blue);
    border-color: var(--kiboko-blue);
}

.form-switch .form-check-label {
    cursor: pointer;
    color: var(--kiboko-dark);
}

/* Responsive */
@media (max-width: 768px) {
    .quiz-edit-header {
        padding: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    
    .stat-box {
        padding: 1rem;
    }
    
    .stat-box .stat-value {
        font-size: 1.5rem;
    }
    
    .quick-actions {
        justify-content: center;
    }
}
.questions-header {
    background: linear-gradient(135deg, var(--kiboko-blue) 0%, var(--kiboko-green) 100%);
    color: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
}

.question-card {
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    margin-bottom: 1rem;
    transition: var(--transition-base);
    border-left: 4px solid transparent;
}

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

.question-card.correct-a { border-left-color: #28a745; }
.question-card.correct-b { border-left-color: #17a2b8; }
.question-card.correct-c { border-left-color: #ffc107; }
.question-card.correct-d { border-left-color: #dc3545; }

.question-number {
    width: 40px;
    height: 40px;
    background: var(--kiboko-blue);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.option-item {
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    background: var(--kiboko-light);
    border: 2px solid transparent;
    transition: var(--transition-fast);
    cursor: default;
}

.option-item.correct {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    border-color: #28a745;
    color: #155724;
}

.option-item.correct .option-letter {
    background: #28a745;
    color: white;
}

.option-letter {
    width: 30px;
    height: 30px;
    background: #e2e8f0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 10px;
}

.stats-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-base);
}

.stats-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.stats-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--kiboko-blue);
    line-height: 1;
}

.stats-label {
    color: var(--kiboko-gray);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.drag-handle {
    cursor: move;
    color: var(--kiboko-gray);
    transition: color 0.2s;
}

.drag-handle:hover {
    color: var(--kiboko-blue);
}

.question-ghost {
    opacity: 0.5;
    background: var(--kiboko-border);
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--kiboko-light);
    border-radius: var(--radius-lg);
}

.empty-state i {
    font-size: 4rem;
    color: var(--kiboko-gray-light);
    margin-bottom: 1rem;
}

/* Modal styles */
.modal-option {
    margin-bottom: 1rem;
}

.modal-option label {
    font-weight: 600;
    color: var(--kiboko-dark);
    margin-bottom: 0.25rem;
}

.modal-option .input-group-text {
    background: var(--kiboko-blue);
    color: white;
    border: none;
    font-weight: bold;
}

/* Quick stats bar */
.quick-stats {
    background: white;
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-bottom: 1.5rem;
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    box-shadow: var(--shadow-sm);
}

.quick-stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.quick-stat-label {
    color: var(--kiboko-gray);
    font-size: 0.9rem;
}

.quick-stat-value {
    font-weight: 600;
    color: var(--kiboko-dark);
}

.correct-distribution {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.dist-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.85rem;
}

.dist-letter {
    font-weight: bold;
    color: var(--kiboko-blue);
}

/* Responsive */
@media (max-width: 768px) {
    .questions-header {
        padding: 1.5rem;
    }
    
    .question-number {
        width: 30px;
        height: 30px;
        font-size: 1rem;
    }
    
    .quick-stats {
        flex-direction: column;
        gap: 0.75rem;
    }
}