/* Global Styles */
:root {
    --primary-color: #0052cc;
    --secondary-color: #ff9f00;
    --accent-color: #4caf50;
    --background-color: #f8f9fa;
    --text-color: #212529;
    --light-text: #6c757d;
    --white: #ffffff;
    --light-gray: #e9ecef;
    --border-color: #dee2e6;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
}

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

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
    background-color: var(--background-color);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    line-height: 1.3;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    font-family: 'Poppins', sans-serif;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: var(--white);
    border-color: var(--secondary-color);
}

.btn-primary:hover {
    background-color: #e58a00;
    border-color: #e58a00;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn-outline {
    background-color: transparent;
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-outline:hover {
    background-color: var(--secondary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.section-subtitle {
    font-size: 1.1rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--light-text);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 0.8rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo .logo {
    height: 40px;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--text-color);
    transition: color 0.3s ease;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.language-switcher select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--white);
    cursor: pointer;
}

.login-btn {
    padding: 8px 16px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.login-btn:hover {
    background-color: #0042a8;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('https://images.unsplash.com/photo-1450101499163-c8848c66ca85?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') no-repeat center center/cover;
    min-height: 100vh;
    display: flex;
    align-items: center;
    color: var(--white);
    padding-top: 80px;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Services/Test Series Section */
.services, .free-tests, .features, .pricing, .results {
    padding: 5rem 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background-color: var(--white);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.service-card p {
    margin-bottom: 1.5rem;
    color: var(--light-text);
}

/* Free Tests Section */
.test-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.test-card {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.test-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.test-card-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1.5rem;
    text-align: center;
}

.test-card-header h3 {
    font-size: 1.3rem;
    margin: 0;
}

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

.test-card-body p {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-align: center;
}

.test-card-body ul {
    margin-bottom: 1.5rem;
}

.test-card-body li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--light-gray);
    position: relative;
    padding-left: 1.5rem;
    text-align: left;
}

.test-card-body li:before {
    content: "✓";
    color: var(--success-color);
    position: absolute;
    left: 0;
}

.test-card-footer {
    padding: 0 1.5rem 1.5rem;
    text-align: center;
}

.coupon-banner-horizontal {
    background: linear-gradient(135deg, #ff9f00 0%, #ff6b00 100%);
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 3rem;
    color: var(--white);
}

.coupon-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.coupon-icon {
    font-size: 2rem;
}

.coupon-text {
    flex: 1;
}

.coupon-text h4 {
    margin-bottom: 0.5rem;
}

.coupon-code {
    background-color: var(--white);
    color: var(--secondary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-weight: bold;
    margin: 0 0.3rem;
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-item {
    background-color: var(--white);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    text-align: center;
}

.feature-item:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Pricing Section */
.pricing-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.pricing-tab {
    padding: 12px 24px;
    background-color: var(--light-gray);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.pricing-tab.active {
    background-color: var(--primary-color);
    color: var(--white);
}

.pricing-panels {
    margin-top: 2rem;
}

.pricing-panel {
    display: none;
}

.pricing-panel.active {
    display: block;
}

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

.pricing-card {
    background-color: var(--white);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    position: relative;
    border: 1px solid var(--border-color);
    text-align: center;
    display: flex;
    flex-direction: column;
}

.pricing-card ul.features {
    flex-grow: 1;
}

.pricing-card.highlight {
    border-color: var(--secondary-color);
    transform: scale(1.05);
}

.badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.price {
    margin-bottom: 1.5rem;
}

.current {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.original {
    text-decoration: line-through;
    color: var(--light-text);
    margin-left: 0.5rem;
    font-size: 1.5rem;
}

.features li {
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--light-gray);
}

.features li:last-child {
    border-bottom: none;
}

/* Results Section */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.stat-item {
    background-color: var(--white);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--light-text);
    font-weight: 500;
}

.testimonial-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonial-slide {
    display: none;
    animation: fadeIn 0.5s ease;
}

.testimonial-slide.active {
    display: block;
}

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

.testimonial-content {
    background-color: var(--white);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.testimonial-text {
    margin-bottom: 1.5rem;
    font-style: italic;
    color: var(--text-color);
}

.testimonial-author h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.testimonial-author span {
    color: var(--light-text);
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--light-gray);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.dot.active {
    background-color: var(--primary-color);
}

/* CTA Section */
.cta {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #0042a8 100%);
    color: var(--white);
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
.footer {
    background-color: #2c3e50;
    color: var(--white);
    padding: 4rem 0 2rem;
}

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

.footer-column h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.footer-logo .logo {
    height: 40px;
    margin-bottom: 1rem;
}

.footer-logo p {
    color: #bdc3c7;
    margin-bottom: 1.5rem;
}

.footer-column ul li {
    margin-bottom: 0.8rem;
}

.footer-column ul li a {
    color: #bdc3c7;
    transition: color 0.3s ease;
}

.footer-column ul li a:hover {
    color: var(--white);
}

.contact-info p {
    margin-bottom: 1rem;
    color: #bdc3c7;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.newsletter-form input {
    flex: 1;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    font-family: 'Open Sans', sans-serif;
}

.newsletter-form button {
    padding: 10px 15px;
    background-color: var(--secondary-color);
    color: var(--white);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
}

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

.footer-bottom a {
    color: #bdc3c7;
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: var(--white);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1100;
    overflow-y: auto;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-content {
    background-color: var(--white);
    border-radius: 8px;
    width: 100%;
    max-width: 500px;
    animation: modalFadeIn 0.3s ease;
    margin: auto;
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.close {
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--light-text);
    font-weight: 300;
    line-height: 1;
}

.close:hover {
    color: var(--text-color);
}

.modal-body {
    padding: 1.5rem;
}

.tab-container {
    margin-top: 1rem;
}

.tab-buttons {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.tab-btn {
    padding: 12px 24px;
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 500;
    color: var(--light-text);
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.auth-form {
    margin-top: 1rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'Open Sans', sans-serif;
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 82, 204, 0.2);
}

/* Responsive Design */
@media (max-width: 992px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 62px; /* Adjusted for navbar height */
        left: -100%;
        width: 100%;
        height: calc(100vh - 62px);
        background-color: var(--white);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 2rem;
        transition: left 0.3s ease;
        z-index: 999;
        gap: 1rem;
        padding: 2rem;
    }
    
    .nav-menu.active {
        left: 0;
    }

    .nav-link {
        font-size: 1.2rem;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .pricing-card.highlight {
        transform: scale(1); /* No zoom on tablet */
    }
}

@media (max-width: 768px) {
    body {
        font-size: 14px;
    }

    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .pricing-grid, .stats-grid, .footer-content {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .newsletter-form {
        flex-direction: column;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 10px;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .stats-grid, .test-cards, .services-grid, .features-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px auto;
    }
}