/* Base Styles */
:root {
    --primary-color: #4A00E0;
    --secondary-color: #8E2DE2;
    --accent-color: #FF416C;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --dark-bg: #343a40;
    --white: #ffffff;
    --gray: #6c757d;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--light-bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.main-header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.logo span {
    color: var(--accent-color);
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 25px;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 5px 0;
    position: relative;
    transition: var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary-color);
}

.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn {
    padding: 10px 20px;
    border-radius: var(--border-radius);
    border: none;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 0, 224, 0.3);
}

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

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-color);
}

/* Hero Slider */
.hero-slider {
    position: relative;
    height: 600px;
    overflow: hidden;
    margin-bottom: 60px;
}

.slider-container {
    position: relative;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
    display: flex;
    align-items: center;
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7));
}

.slide.active {
    opacity: 1;
}

.video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-content {
    max-width: 600px;
    margin-left: 10%;
    color: var(--white);
    z-index: 1;
}

.slide-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.slide-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.slider-prev,
.slider-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
}

.slider-prev:hover,
.slider-next:hover {
    background: rgba(255,255,255,0.3);
}

.slider-prev {
    left: 20px;
}

.slider-next {
    right: 20px;
}

.slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--white);
    transform: scale(1.2);
}

/* Categories & Courses */
.section-title {
    text-align: center;
    margin-bottom: 40px;
    font-size: 36px;
    color: var(--text-color);
}

.categories-grid,
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.category-card,
.course-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.category-card:hover,
.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.category-card {
    padding: 30px;
    text-align: center;
    text-decoration: none;
    color: var(--text-color);
}

.category-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 30px;
}

.category-card h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

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

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

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

.free-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--success);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.course-content {
    padding: 20px;
}

.course-content h3 {
    margin-bottom: 10px;
    color: var(--text-color);
}

.course-description {
    color: var(--gray);
    margin-bottom: 15px;
    font-size: 14px;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.category {
    background: var(--light-bg);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 12px;
    color: var(--gray);
}

.price {
    font-weight: bold;
    color: var(--primary-color);
    font-size: 18px;
}

/* How it Works */
.how-it-works {
    background: var(--white);
    padding: 60px 0;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    text-align: center;
}

.step {
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    margin: 0 auto 20px;
}

.step h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

/* Footer */
.main-footer {
    background: var(--dark-bg);
    color: white;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    margin-bottom: 20px;
    font-size: 20px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.5);
    font-size: 14px;
}

/* Authentication Pages */
.auth-container {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.auth-box {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 100%;
    max-width: 400px;
}

.auth-box h2 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--primary-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 0, 224, 0.1);
}

.input-with-flag {
    display: flex;
}

.input-with-flag .country-code {
    padding: 12px 15px;
    background: var(--light-bg);
    border: 1px solid #ddd;
    border-right: none;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.input-with-flag input {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.alert {
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

.alert.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.auth-links {
    margin-top: 20px;
    text-align: center;
}

.auth-links a {
    color: var(--primary-color);
    text-decoration: none;
}

.resend-otp {
    margin-top: 20px;
    text-align: center;
}

.verify-info {
    text-align: center;
    margin-bottom: 20px;
    color: var(--gray);
}

/* Pending Approval */
.pending-approval {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.approval-box {
    background: var(--white);
    padding: 50px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
    max-width: 500px;
    width: 100%;
}

.approval-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #FF9800, #FF5722);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    color: white;
}

.approval-box h2 {
    margin-bottom: 15px;
    color: var(--text-color);
}

.approval-box p {
    margin-bottom: 15px;
    color: var(--gray);
}

.whatsapp-redirect {
    margin: 30px 0;
    padding: 20px;
    background: #f0f9ff;
    border-radius: var(--border-radius);
    border-left: 4px solid #25D366;
}

.btn-whatsapp {
    background: #25D366;
    color: white;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
}

.btn-whatsapp:hover {
    background: #128C7E;
    color: white;
}

/* Text Center */
.text-center {
    text-align: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .main-nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        padding: 20px;
        transition: var(--transition);
        z-index: 999;
    }
    
    .main-nav.active {
        left: 0;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 0;
    }
    
    .main-nav li {
        border-bottom: 1px solid #eee;
    }
    
    .main-nav a {
        display: block;
        padding: 15px 0;
    }
    
    .header-actions .btn {
        padding: 8px 15px;
        font-size: 14px;
    }
    
    .hero-slider {
        height: 400px;
    }
    
    .slide-content {
        margin: 0 20px;
        text-align: center;
    }
    
    .slide-content h2 {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .auth-box {
        padding: 30px 20px;
    }
    
    .approval-box {
        padding: 30px 20px;
    }
}