/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}


body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

/* Header Styles */
.header {
    background: linear-gradient(135deg, #8b5a3c 0%, #98827a 100%);
    box-shadow: 0 2px 10px rgba(139, 69, 19, 0.2);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.logo:hover {
    transform: translateY(-2px);
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.logo i {
    font-size: 1.8rem;
    color: #e8d5b7;
    transition: all 0.3s ease;
}

.logo:hover i {
    transform: rotate(15deg);
    color: white;
}

.navbar {
    flex: 1;
    max-width: 600px;
    margin: 0 2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    justify-content: center;
    align-items: center;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover,
.nav-link.active {
    color: #e8d5b7;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #e8d5b7;
    animation: slideIn 0.3s ease;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #e8d5b7;
    transition: width 0.3s ease;
}

.nav-link:hover::before {
    width: 100%;
}

.auth-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.auth-buttons .user-name {
    color: #b53535;
    font-weight: 600;
    margin: 0 1rem;
    order: 3;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    border: 2px solid rgba(181, 53, 53, 0.3);
    transition: all 0.3s ease;
}

.auth-buttons .user-name:hover {
    background: rgba(181, 53, 53, 0.1);
    transform: translateY(-2px);
}

.auth-buttons .btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 80px;
    position: relative;
    overflow: hidden;
}

.auth-buttons .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
    transition: left 0.5s ease;
}

.auth-buttons .btn:hover::before {
    left: 100%;
}

.auth-buttons .btn-outline {
    background: black !important;
    color: white !important;
    border: 2px solid black !important;
    order: 1;
}

.auth-buttons .btn-outline:hover {
    background: #333333 !important;
    color: white !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.auth-buttons .btn-primary {
    background: black !important;
    color: white !important;
    border: 2px solid black !important;
    order: 2;
}

.auth-buttons .btn-primary:hover {
    background: #333333 !important;
    border-color: #333333 !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.auth-buttons .btn-admin {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white !important;
    border: 2px solid #667eea !important;
    margin-right: 0.5rem;
    transition: all 0.3s ease;
}

.auth-buttons .btn-admin:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6b5aa8 100%) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.auth-buttons .btn-logout {
    background: #dc3545 !important;
    color: white !important;
    border: 2px solid #dc3545 !important;
    transition: all 0.3s ease;
}

.auth-buttons .btn-logout:hover {
    background: #c82333 !important;
    border-color: #c82333 !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
}

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: white;
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    transform: scale(1.1);
    color: #e8d5b7;
}

/* Button Styles */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: #4a90e2;
    color: white;
}

.btn-primary:hover {
    background: #357abd;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #4a90e2;
    border: 2px solid #4a90e2;
}

.btn-outline:hover {
    background: #4a90e2;
    color: white;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s;
    animation-fill-mode: both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 1s ease 0.4s;
    animation-fill-mode: both;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: white;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: 10px;
    background: #f8f9fa;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.feature-card i {
    font-size: 3rem;
    color: #4a90e2;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.feature-card p {
    color: #666;
}

/* Courses Section */
.courses {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f5dc 0%, #e8dcc0 100%);
    position: relative;
}

.courses::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(139, 90, 60, 0.02) 50%, transparent 70%);
    pointer-events: none;
}

.courses h2 {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 3rem;
    color: #3e2723;
    font-weight: 700;
    position: relative;
}

.courses h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #8b5a3c, #6d4c41);
    border-radius: 2px;
}

.course-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.8rem 1.5rem;
    border: 2px solid #8b5a3c;
    background: transparent;
    color: #8b5a3c;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    font-size: 0.95rem;
    backdrop-filter: blur(10px);
}

.filter-btn.active,
.filter-btn:hover {
    background: linear-gradient(135deg, #8b5a3c, #6d4c41);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(139, 90, 60, 0.3);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.course-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(139, 90, 60, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    border: 1px solid rgba(139, 90, 60, 0.08);
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #8b5a3c, #6d4c41);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.course-card:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: 0 20px 50px rgba(139, 90, 60, 0.2);
    border-color: rgba(139, 90, 60, 0.15);
}

.course-card:hover::before {
    opacity: 1;
}

.course-image {
    position: relative;
    height: 220px;
    overflow: hidden;
    border-radius: 20px 20px 0 0;
}

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

.course-card:hover .course-image img {
    transform: scale(1.08);
}

.course-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: white;
    padding: 0.5rem 1.2rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 6px 15px rgba(255, 107, 53, 0.4);
    backdrop-filter: blur(10px);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.course-content {
    padding: 2.5rem;
    position: relative;
}

.course-content h3 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
    font-weight: 700;
    line-height: 1.3;
    transition: color 0.3s ease;
}

.course-card:hover .course-content h3 {
    color: #8b5a3c;
}

.course-content p {
    color: #666;
    margin-bottom: 1.8rem;
    line-height: 1.7;
    font-size: 0.95rem;
    font-weight: 400;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(139, 90, 60, 0.1);
}

.rating {
    color: #ff6b35;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.rating i {
    color: #ffa500;
}

.students {
    color: #666;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.course-price {
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.current-price {
    font-size: 2rem;
    font-weight: 800;
    color: #8b5a3c;
    position: relative;
}

.original-price {
    font-size: 1.3rem;
    color: #999;
    text-decoration: line-through;
    font-weight: 400;
}

.course-content .btn {
    width: 100%;
    padding: 1.2rem;
    background: linear-gradient(135deg, #8b5a3c, #6d4c41);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.course-content .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.course-content .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(139, 90, 60, 0.4);
    background: linear-gradient(135deg, #6d4c41, #8b5a3c);
}

.course-content .btn:hover::before {
    left: 100%;
}

/* About Section */
.about {
    padding: 80px 0;
    background: white;
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: #666;
    font-size: 1.1rem;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2rem;
    color: #4a90e2;
    margin-bottom: 0.5rem;
}

.stat p {
    color: #666;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: #f8f9fa;
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-item i {
    font-size: 2rem;
    color: #4a90e2;
    width: 50px;
}

.contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
    color: #333;
}

.contact-item p {
    color: #666;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e1e8ed;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4a90e2;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: #4a90e2;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: #4a90e2;
}

.footer-section p {
    color: #bdc3c7;
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    transition: color 0.3s;
}

.social-links a:hover {
    color: #4a90e2;
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.newsletter-form input {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid #34495e;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 14px;
    transition: all 0.3s ease;
}

.newsletter-form input::placeholder {
    color: #bdc3c7;
}

.newsletter-form input:focus {
    outline: none;
    border-color: #4a90e2;
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.2);
}

.newsletter-form .btn-primary {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #4a90e2 0%, #357abd 100%);
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.newsletter-form .btn-primary:hover {
    background: linear-gradient(135deg, #357abd 0%, #2968a8 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.newsletter-form .btn-primary:active {
    transform: translateY(0);
}

/* Newsletter Message Styles */
#newsletterMessage {
    margin-top: 10px !important;
    padding: 12px !important;
    border-radius: 6px !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    text-align: center;
    animation: slideIn 0.3s ease;
    transition: all 0.3s ease;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    animation: fadeIn 0.3s;
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    position: relative;
    animation: slideIn 0.3s;
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 2rem;
    cursor: pointer;
    color: #999;
}

.close:hover {
    color: #333;
}

.auth-tabs {
    display: flex;
    margin-bottom: 2rem;
}

.auth-tab {
    flex: 1;
    padding: 1rem;
    border: none;
    background: #f8f9fa;
    cursor: pointer;
    transition: all 0.3s;
}

.auth-tab.active {
    background: #4a90e2;
    color: white;
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

.auth-form h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

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

.forgot-password {
    color: #4a90e2;
    text-decoration: none;
}

.forgot-password:hover {
    text-decoration: underline;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar ul {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .auth-buttons {
        gap: 0.5rem;
        justify-content: center;
    }
    
    .auth-buttons .user-name {
        display: none;
    }
    
    .auth-buttons .btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
        min-width: 70px;
        flex: 1;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .features-grid,
    .courses-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .newsletter-form {
        flex-direction: column;
        gap: 1rem;
    }
    
    .newsletter-form .btn-primary {
        width: 100%;
        text-align: center;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .features,
    .courses,
    .about,
    .contact {
        padding: 60px 0;
    }
    
    .course-filter {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        width: 200px;
    }
}