/* SkillMeUp.ai - Blue-Focused Design System with Enhanced Contrast */

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

/* CSS Variables for Blue-Focused Design System */
:root {
    /* Blue-Focused Theme Colors */
    --primary-color: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --primary-darker: #1e40af;
    /* Blue-Focused Gradients */
    --primary-gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    --secondary-gradient: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
    --accent-gradient: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    --neural-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --success-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --warning-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --danger-gradient: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    /* Ultra Light Theme Colors */
    --light-bg: #ffffff;
    --lighter-bg: #fefefe;
    --card-bg: rgba(255, 255, 255, 0.95);
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(37, 99, 235, 0.06);
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;
    --border-color: rgba(37, 99, 235, 0.05);
    /* Blue Theme Accent Colors */
    --accent-blue: #2563eb;
    --accent-cyan: #06b6d4;
    --accent-sky: #0ea5e9;
    --accent-green: #10b981;
    --accent-orange: #f59e0b;
    --accent-red: #ef4444;
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    /* Ultra Light Theme Shadows */
    --shadow-sm: 0 1px 6px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 2px 12px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.15);
}

/* Base Styles */
* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-primary);
    background: var(--light-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

    /* Ultra Light Animated Background - Blue Theme */
    body::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: radial-gradient(circle at 20% 30%, rgba(37, 99, 235, 0.015) 0%, transparent 50%), radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.015) 0%, transparent 50%), radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.01) 0%, transparent 50%);
        animation: backgroundShift 30s ease-in-out infinite;
        z-index: -1;
    }

@keyframes backgroundShift {
    0%, 100% {
        transform: scale(1) rotate(0deg);
        opacity: 0.5;
    }

    33% {
        transform: scale(1.01) rotate(0.2deg);
        opacity: 0.7;
    }

    66% {
        transform: scale(0.99) rotate(-0.2deg);
        opacity: 0.6;
    }
}

/* Typography with Better Contrast */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.2;
    margin-top: 0;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #0f172a;
}

h2 {
    font-size: 2rem;
    font-weight: 600;
    color: #1e293b;
}

h3 {
    font-size: 1.5rem;
    color: #334155;
}

h4 {
    font-size: 1.25rem;
    color: #334155;
}

h5 {
    font-size: 1.125rem;
    color: #475569;
}

h6 {
    font-size: 1rem;
    color: #475569;
}

p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
}

/* Links with Better Contrast */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

    a:hover, a:focus {
        color: var(--primary-dark);
        text-decoration: none;
    }

/* Buttons with Enhanced Contrast - Blue Theme */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.875rem;
    line-height: 1;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    white-space: nowrap;
}

    .btn::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
        transition: left 0.5s;
    }

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

/* Button Variants - Blue Theme */
.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-glow);
        color: white;
    }

.btn-success {
    background: var(--success-gradient);
    color: white;
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

    .btn-success:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(16, 185, 129, 0.25);
        color: white;
    }

.btn-warning {
    background: var(--warning-gradient);
    color: #1f2937;
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

    .btn-warning:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(245, 158, 11, 0.25);
        color: #1f2937;
    }

.btn-danger {
    background: var(--danger-gradient);
    color: white;
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

    .btn-danger:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(239, 68, 68, 0.25);
        color: white;
    }

.btn-info {
    background: var(--accent-gradient);
    color: white;
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

    .btn-info:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(6, 182, 212, 0.25);
        color: white;
    }

.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-dark);
    font-weight: 600;
}

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

.btn-outline-secondary {
    background: transparent;
    border: 2px solid #6b7280;
    color: #374151;
    font-weight: 600;
}

    .btn-outline-secondary:hover {
        background: var(--glass-bg);
        border-color: var(--accent-blue);
        color: var(--text-primary);
    }

.btn-outline-success {
    background: transparent;
    border: 2px solid #10b981;
    color: #065f46;
    font-weight: 600;
}

    .btn-outline-success:hover {
        background: var(--success-gradient);
        border-color: transparent;
        color: white;
        transform: translateY(-2px);
    }

.btn-outline-warning {
    background: transparent;
    border: 2px solid #f59e0b;
    color: #92400e;
    font-weight: 600;
}

    .btn-outline-warning:hover {
        background: var(--warning-gradient);
        border-color: transparent;
        color: #1f2937;
        transform: translateY(-2px);
    }

.btn-outline-danger {
    background: transparent;
    border: 2px solid #ef4444;
    color: #991b1b;
    font-weight: 600;
}

    .btn-outline-danger:hover {
        background: var(--danger-gradient);
        border-color: transparent;
        color: white;
        transform: translateY(-2px);
    }

.btn-outline-info {
    background: transparent;
    border: 2px solid #06b6d4;
    color: #0e7490;
    font-weight: 600;
}

    .btn-outline-info:hover {
        background: var(--accent-gradient);
        border-color: transparent;
        color: white;
        transform: translateY(-2px);
    }

/* Button Sizes */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Glass Morphism Components - Blue Theme */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

    .glass-card:hover {
        background: var(--lighter-bg);
        border-color: rgba(37, 99, 235, 0.1);
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

/* Form Controls with Better Contrast */
.form-control, .form-select {
    background: var(--lighter-bg);
    border: 1px solid #d1d5db;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-family: var(--font-primary);
    transition: all 0.3s ease;
}

    .form-control:focus, .form-select:focus {
        background: var(--lighter-bg);
        border-color: var(--primary-color);
        box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.15);
        color: var(--text-primary);
        outline: none;
    }

    .form-control::placeholder {
        color: #9ca3af;
    }

    .form-select option {
        background: var(--lighter-bg);
        color: var(--text-primary);
    }

.form-label {
    color: #374151;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.form-check-input {
    background-color: var(--lighter-bg);
    border: 1px solid #d1d5db;
}

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

    .form-check-input:focus {
        border-color: var(--primary-color);
        box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.15);
    }

.form-check-label {
    color: #4b5563;
    font-weight: 500;
}

/* Badges with Enhanced Contrast - Blue Theme */
.badge {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
}

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

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

    .badge.bg-warning {
        background: var(--warning-gradient) !important;
        color: #1f2937 !important;
    }

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

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

    .badge.bg-secondary {
        background: #f3f4f6 !important;
        color: #374151 !important;
        border-color: #d1d5db;
    }

    .badge.bg-dark {
        background: linear-gradient(135deg, #374151 0%, #1f2937 100%) !important;
        color: white !important;
    }

/* Cards with Enhanced Styling */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

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

.card-body {
    padding: var(--space-xl);
}

.card-header {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(59, 130, 246, 0.03) 100%);
    border-bottom: 1px solid #e5e7eb;
    padding: var(--space-lg) var(--space-xl);
}

.card-footer {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.02) 0%, rgba(59, 130, 246, 0.02) 100%);
    border-top: 1px solid #e5e7eb;
    padding: var(--space-lg) var(--space-xl);
}

/* Tables with Better Contrast */
.table {
    color: var(--text-primary);
    background: transparent;
}

    .table thead th {
        background: var(--primary-gradient);
        border: none;
        color: white;
        font-weight: 700;
        padding: 1rem;
        font-size: 0.875rem;
    }

    .table tbody td {
        background: rgba(248, 250, 252, 0.8);
        border-color: #e5e7eb;
        padding: 1rem;
        vertical-align: middle;
        color: var(--text-primary);
    }

    .table tbody tr:hover td {
        background: rgba(241, 245, 249, 0.9);
    }

.table-striped tbody tr:nth-of-type(odd) td {
    background: rgba(248, 250, 252, 0.6);
}

.table-hover tbody tr:hover td {
    background: rgba(236, 240, 246, 0.9);
}

/* Alerts with Better Contrast */
.alert {
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    font-weight: 500;
}

.alert-success {
    background: rgba(34, 197, 94, 0.08);
    border-color: rgba(34, 197, 94, 0.2);
    color: #14532d;
}

.alert-warning {
    background: rgba(251, 191, 36, 0.08);
    border-color: rgba(251, 191, 36, 0.2);
    color: #78350f;
}

.alert-danger {
    background: rgba(248, 113, 113, 0.08);
    border-color: rgba(248, 113, 113, 0.2);
    color: #7f1d1d;
}

.alert-info {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.2);
    color: #1e3a8a;
}

/* Modals */
.modal-content {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.modal-header {
    border-bottom: 1px solid #e5e7eb;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(59, 130, 246, 0.03) 100%);
}

.modal-footer {
    border-top: 1px solid #e5e7eb;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.02) 0%, rgba(59, 130, 246, 0.02) 100%);
}

.btn-close {
    background: transparent;
    border: none;
    font-size: 1.25rem;
    color: #6b7280;
    opacity: 0.8;
}

    .btn-close:hover {
        opacity: 1;
        color: #374151;
    }

/* Pagination */
.pagination .page-link {
    background: var(--lighter-bg);
    border: 1px solid #d1d5db;
    color: #4b5563;
    padding: 0.75rem 1rem;
    margin: 0 2px;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

    .pagination .page-link:hover {
        background: #f9fafb;
        color: #374151;
        border-color: var(--primary-color);
        transform: translateY(-1px);
    }

.pagination .page-item.active .page-link {
    background: var(--primary-gradient);
    border-color: transparent;
    color: white;
    box-shadow: var(--shadow-sm);
}

.pagination .page-item.disabled .page-link {
    background: #f9fafb;
    border-color: #e5e7eb;
    color: #9ca3af;
}

/* Utilities with Enhanced Contrast - Blue Theme */
.text-gradient-primary {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

.text-gradient-accent {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

.text-gradient-success {
    background: var(--success-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

.bg-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
}

.border-glass {
    border: 1px solid var(--glass-border);
}

.shadow-glow {
    box-shadow: var(--shadow-glow);
}

/* Feature Utilities */
.feature-title {
    color: #1f2937;
    font-weight: 700;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

    50% {
        transform: scale(1.02);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 10px rgba(37, 99, 235, 0.15);
    }

    50% {
        box-shadow: 0 0 20px rgba(37, 99, 235, 0.3);
    }
}

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

.animate-pulse {
    animation: pulse 2s infinite;
}

.animate-glow {
    animation: glow 2s ease-in-out infinite alternate;
}

/* Content area */
.content {
    flex: 1;
    padding: var(--space-xl) 0;
}

/* Dropdown Styles */
.dropdown-content {
    display: none;
    position: absolute;
    top: 3rem;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    min-width: 200px;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    border-radius: var(--radius-md);
    border: 1px solid #e5e7eb;
    overflow: hidden;
}

    .dropdown-content a {
        color: #4b5563;
        padding: 12px 16px;
        display: block;
        text-decoration: none;
        transition: all 0.3s ease;
        font-weight: 500;
    }

        .dropdown-content a:hover {
            background: #f8fafc;
            color: #1f2937;
        }

    .dropdown-content.show {
        display: block;
        animation: slideIn 0.3s ease;
    }

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown {
    position: relative;
    display: inline-block;
    z-index: 9998;
}

/* Navbar Styles */
.navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border: none;
    border-bottom: 1px solid #e5e7eb;
    padding: 1rem 2rem;
    transition: all 0.3s ease;
    position: relative;
    z-index: 9997;
    box-shadow: var(--shadow-sm);
}

    .navbar .container-fluid {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0;
    }

.navbar-logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

    .navbar-logo::before {
        content: '🧠';
        font-size: 1.5rem;
        animation: pulse 2s infinite;
    }

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-left: auto;
}

    .nav-links a {
        color: #4b5563;
        font-weight: 600;
        text-decoration: none;
        padding: 0.5rem 1rem;
        border-radius: var(--radius-sm);
        transition: all 0.3s ease;
        position: relative;
    }

        .nav-links a:hover {
            color: #1f2937;
            background: #f8fafc;
            transform: translateY(-1px);
        }

.dropdown-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-primary);
    font-weight: 600;
    color: #4b5563;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

    .dropdown-toggle:hover {
        color: #1f2937;
        background: #f8fafc;
    }

    .dropdown-toggle img {
        vertical-align: middle;
        width: 32px;
        height: 32px;
        border-radius: 50%;
        border: 2px solid var(--accent-blue);
        box-shadow: 0 0 10px rgba(37, 99, 235, 0.15);
    }

/* Page-Specific Overrides for Blue Theme */

/* Hero Sections */
.hero-section,
.catalog-header,
.course-hero,
.tour-hero,
.classrooms-hero {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, rgba(59, 130, 246, 0.08) 100%) !important;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

    .hero-section::before,
    .catalog-header::before,
    .course-hero::before,
    .tour-hero::before,
    .classrooms-hero::before {
        background: radial-gradient(circle at 30% 70%, rgba(37, 99, 235, 0.03) 0%, transparent 50%) !important;
    }

.hero-title,
.catalog-title,
.course-title,
.tour-title,
.classrooms-title {
    background: var(--primary-gradient) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
}

/* Feature Cards */
.feature-card,
.course-card,
.classroom-card,
.lesson-card {
    background: var(--card-bg) !important;
    border: 1px solid var(--glass-border) !important;
    box-shadow: var(--shadow-sm);
}

    .feature-card:hover,
    .course-card:hover,
    .classroom-card:hover,
    .lesson-card:hover {
        border-color: rgba(37, 99, 235, 0.2) !important;
        box-shadow: var(--shadow-lg);
    }

    .feature-card::before,
    .course-card::before,
    .classroom-card::before,
    .lesson-card::before {
        background: var(--primary-gradient) !important;
    }

/* Icons and Accent Elements */
.feature-icon,
.invite-icon,
.lessons-icon,
.demo-emoji {
    background: var(--accent-gradient) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
}

.info-icon,
.meta-icon,
.meta-icon-small {
    color: var(--primary-color) !important;
}

/* Feature Badges */
.feature-badge {
    background: rgba(37, 99, 235, 0.1) !important;
    color: #1e40af !important;
    border: 1px solid rgba(37, 99, 235, 0.2) !important;
}

/* AI Chip */
.ai-chip {
    background: rgba(37, 99, 235, 0.1) !important;
    border: 1px solid rgba(37, 99, 235, 0.2) !important;
    color: #1e40af !important;
}

/* Button Overrides */
.btn-open-course,
.btn-enroll {
    background: var(--success-gradient) !important;
    color: white !important;
}

    .btn-open-course:hover,
    .btn-enroll:hover {
        box-shadow: 0 8px 25px rgba(16, 185, 129, 0.25) !important;
    }

.btn-manage-subscription,
.btn-register {
    background: var(--primary-gradient) !important;
    color: white !important;
}

    .btn-manage-subscription:hover,
    .btn-register:hover {
        box-shadow: 0 8px 25px rgba(37, 99, 235, 0.25) !important;
    }

.invite-submit {
    background: var(--accent-gradient) !important;
    color: white !important;
}

    .invite-submit:hover {
        box-shadow: 0 8px 25px rgba(6, 182, 212, 0.25) !important;
    }

.notification-btn,
.cta-button {
    background: var(--neural-gradient) !important;
    color: white !important;
}

    .notification-btn:hover,
    .cta-button:hover {
        box-shadow: 0 8px 25px rgba(59, 130, 246, 0.25) !important;
    }

/* Status Badges */
.status-trialing {
    background: rgba(37, 99, 235, 0.1) !important;
    color: var(--primary-dark) !important;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.status-active {
    background: rgba(16, 185, 129, 0.1) !important;
    color: #065f46 !important;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-canceled {
    background: rgba(239, 68, 68, 0.1) !important;
    color: #991b1b !important;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Enhanced Classrooms Page Styles */

/* Hero Section */
.classrooms-hero {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, rgba(59, 130, 246, 0.08) 100%) !important;
    border: 1px solid var(--glass-border) !important;
    border-radius: var(--radius-xl);
    padding: 3rem 2rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    text-align: center;
}

    .classrooms-hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(circle at 30% 70%, rgba(37, 99, 235, 0.03) 0%, transparent 50%) !important;
        z-index: -1;
    }

.classrooms-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--primary-gradient) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
}

.classrooms-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Invitation Card */
.invite-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

    .invite-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
        border-color: rgba(37, 99, 235, 0.15);
    }

.invite-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.invite-icon {
    font-size: 1.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-right: 1rem;
}

.invite-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.invite-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.invite-form {
    max-width: 400px;
}

.invite-label {
    display: flex;
    align-items: center;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.invite-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: var(--radius-sm);
    background: var(--lighter-bg);
    color: var(--text-primary);
    font-family: var(--font-primary);
    transition: all 0.3s ease;
    margin-bottom: 1rem;
}

    .invite-input:focus {
        border-color: var(--primary-color);
        box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.15);
        outline: none;
    }

.invite-submit {
    background: var(--accent-gradient);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
}

    .invite-submit:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(6, 182, 212, 0.25);
    }

/* Divider */
.divider {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
    margin: 2rem 0;
}

/* Classrooms Grid */
.classrooms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Classroom Cards */
.classroom-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

    .classroom-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
        border-color: rgba(37, 99, 235, 0.2);
    }

    .classroom-card .card-body {
        padding: 1.5rem;
        flex: 1;
    }

.classroom-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.3;
}

/* Classroom Info */
.classroom-info {
    margin-bottom: 1rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: rgba(248, 250, 252, 0.5);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(37, 99, 235, 0.05);
}

.info-icon {
    color: var(--primary-color);
    font-size: 1rem;
    margin-right: 0.75rem;
    margin-top: 0.125rem;
    flex-shrink: 0;
}

.info-content {
    flex: 1;
}

.info-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
    display: block;
    margin-bottom: 0.25rem;
}

.info-value {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.25rem;
}

/* Classroom Actions */
.classroom-actions {
    background: rgba(248, 250, 252, 0.5);
    border-top: 1px solid rgba(37, 99, 235, 0.05);
    padding: 1rem 1.5rem;
    display: flex;
    gap: 0.75rem;
}

.btn-open-course {
    background: var(--success-gradient);
    color: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
}

    .btn-open-course:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(16, 185, 129, 0.25);
        color: white;
        text-decoration: none;
    }

.btn-manage-subscription {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
}

    .btn-manage-subscription:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(37, 99, 235, 0.25);
        color: white;
        text-decoration: none;
    }

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.empty-state h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --space-lg: 1rem;
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.8rem;
    }

    .btn-lg {
        padding: 0.875rem 1.75rem;
        font-size: 0.9rem;
    }

    .glass-card, .card {
        margin-bottom: var(--space-lg);
    }

    .classrooms-hero {
        padding: 2rem 1.5rem;
    }

    .classrooms-title {
        font-size: 2rem;
    }

    .invite-card {
        padding: 1.5rem;
    }

    .classrooms-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .classroom-actions {
        flex-direction: column;
    }

        .classroom-actions .btn-open-course,
        .classroom-actions .btn-manage-subscription {
            flex: none;
        }

    .empty-state {
        padding: 2rem 1rem;
    }
}

@media (max-width: 576px) {
    .btn {
        width: 100%;
        margin-bottom: var(--space-sm);
    }

        .btn + .btn {
            margin-left: 0;
        }

    .invite-form {
        max-width: none;
    }

    .invite-submit {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .invite-form {
        max-width: none;
    }

    .invite-submit {
        width: 100%;
        justify-content: center;
    }
}

/* Course Management Page Styles */

/* Hero Section */
.course-management-hero {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, rgba(59, 130, 246, 0.08) 100%) !important;
    border: 1px solid var(--glass-border) !important;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

    .course-management-hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(circle at 30% 70%, rgba(37, 99, 235, 0.03) 0%, transparent 50%) !important;
        z-index: -1;
    }

.course-management-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: var(--primary-gradient) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
}

.course-management-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Search & Filter Card */
.search-filter-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

    .search-filter-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
        border-color: rgba(37, 99, 235, 0.15);
    }

    .search-filter-card .card-header {
        background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(59, 130, 246, 0.03) 100%);
        border-bottom: 1px solid rgba(37, 99, 235, 0.1);
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        padding: 1rem 1.5rem;
    }

    .search-filter-card .card-body {
        padding: 1.5rem;
    }

/* Filter Options */
.filter-options {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.filter-option {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    background: rgba(248, 250, 252, 0.5);
    border: 1px solid rgba(37, 99, 235, 0.05);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    cursor: pointer;
}

    .filter-option:hover {
        background: rgba(241, 245, 249, 0.8);
        border-color: rgba(37, 99, 235, 0.1);
        transform: translateY(-1px);
    }

    .filter-option .form-check-input {
        margin-right: 0.5rem;
        margin-top: 0;
    }

    .filter-option .form-check-label {
        cursor: pointer;
        margin-bottom: 0;
        font-weight: 500;
        color: var(--text-primary);
    }

/* Search Input Styling */
.search-input-wrapper {
    position: relative;
}

.search-input-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    z-index: 2;
}

.search-input {
    padding-left: 2.5rem;
    background: var(--lighter-bg);
    border: 1px solid #d1d5db;
    transition: all 0.3s ease;
}

    .search-input:focus {
        border-color: var(--primary-color);
        box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.15);
        padding-left: 2.5rem;
    }

/* Results Summary */
.results-summary {
    background: rgba(248, 250, 252, 0.6);
    border: 1px solid rgba(37, 99, 235, 0.05);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.results-count {
    font-size: 0.95rem;
}

.active-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

    .active-filters .badge {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
        border-radius: var(--radius-sm);
    }

/* Course Grid */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Course Management Cards */
.course-management-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

    .course-management-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
        border-color: rgba(37, 99, 235, 0.2);
    }

    .course-management-card .card-body {
        padding: 1.5rem;
        flex: 1;
        display: flex;
        flex-direction: column;
    }

/* Course Header */
.course-header {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.course-icon {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    margin-right: 1rem;
    flex-shrink: 0;
}

    .course-icon i {
        font-size: 1.25rem;
        background: var(--primary-gradient);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

.course-info {
    flex: 1;
    min-width: 0;
}

.course-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.course-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

    .course-badges .badge {
        font-size: 0.7rem;
        padding: 0.25rem 0.5rem;
        border-radius: var(--radius-sm);
    }

.course-slug {
    font-size: 0.8rem;
    color: var(--text-muted);
    background: rgba(248, 250, 252, 0.8);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(37, 99, 235, 0.05);
}

/* Course Features */
.course-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.feature-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid transparent;
}

    .feature-badge.ai-led {
        background: rgba(6, 182, 212, 0.1);
        color: #0e7490;
        border-color: rgba(6, 182, 212, 0.2);
    }

    .feature-badge.instructor-led {
        background: rgba(37, 99, 235, 0.1);
        color: var(--primary-dark);
        border-color: rgba(37, 99, 235, 0.2);
    }

    .feature-badge.public {
        background: rgba(16, 185, 129, 0.1);
        color: #065f46;
        border-color: rgba(16, 185, 129, 0.2);
    }

    .feature-badge.free-trial {
        background: rgba(245, 158, 11, 0.1);
        color: #92400e;
        border-color: rgba(245, 158, 11, 0.2);
    }

/* Course Stats */
.course-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-item {
    background: rgba(248, 250, 252, 0.6);
    border: 1px solid rgba(37, 99, 235, 0.05);
    border-radius: var(--radius-sm);
    padding: 1rem;
    text-align: center;
    transition: all 0.3s ease;
}

    .stat-item:hover {
        background: rgba(241, 245, 249, 0.8);
        transform: translateY(-1px);
    }

.stat-number {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Course Pricing */
.course-pricing {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(34, 197, 94, 0.05) 100%);
    border: 1px solid rgba(16, 185, 129, 0.1);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

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

.price-label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.price-value {
    font-weight: 700;
    color: #065f46;
    font-size: 0.9rem;
}

/* Course Actions */
.course-actions {
    background: rgba(248, 250, 252, 0.5);
    border-top: 1px solid rgba(37, 99, 235, 0.05);
    padding: 1rem 1.5rem;
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

    .course-actions .btn {
        font-size: 0.8rem;
        padding: 0.5rem 0.75rem;
        border-radius: var(--radius-sm);
    }

        .course-actions .btn:first-child {
            flex: 1;
        }

/* Page Size Selector */
.page-size-selector {
    display: flex;
    justify-content: center;
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(248, 250, 252, 0.5);
    border-radius: var(--radius-md);
    border: 1px solid rgba(37, 99, 235, 0.05);
}

/* Modal Styling */
#createCourseModal .modal-content {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

#createCourseModal .modal-header {
    border-bottom: 1px solid rgba(37, 99, 235, 0.1);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(59, 130, 246, 0.03) 100%);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

#createCourseModal .modal-footer {
    border-top: 1px solid rgba(37, 99, 235, 0.1);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.02) 0%, rgba(59, 130, 246, 0.02) 100%);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    body::before {
        animation: none;
    }
}