/* CoursePromo - E-Learning Course Landing Page Template */
/* Author: CoursePromo Team */
/* Version: 1.0.0 */

/* ===== CSS RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    overflow-x: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
}

h3 {
    font-size: 1.8rem;
    font-weight: 600;
}

h4 {
    font-size: 1.4rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    color: #666;
    font-size: 1.1rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

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

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.highlight {
    color: #FACC15;
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #FACC15, #F59E0B);
    border-radius: 2px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn i {
    margin-right: 8px;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #FACC15, #F59E0B);
    color: #1A1A1A;
    box-shadow: 0 4px 15px rgba(250, 204, 21, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(250, 204, 21, 0.4);
}

.btn-outline {
    background: transparent;
    color: #1A1A1A;
    border: 2px solid #FACC15;
}

.btn-outline:hover {
    background: #FACC15;
    color: #1A1A1A;
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ===== PRELOADER ===== */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.preloader-content {
    text-align: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #FACC15;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.preloader-content p {
    color: #666;
    font-weight: 500;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar {
    padding: 15px 0;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 45px;
    width: auto;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.05));
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-link {
    font-weight: 500;
    color: #333;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #FACC15;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #FACC15;
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-cta {
    margin-left: 20px;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    transition: all 0.3s ease;
}

.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);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/hero-bg-pattern.svg') no-repeat center center;
    background-size: cover;
    opacity: 0.15;
    animation: slowFloat 30s ease-in-out infinite alternate;
}

@keyframes slowFloat {
    0% {
        transform: translateY(0) scale(1);
    }
    100% {
        transform: translateY(-20px) scale(1.05);
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(248, 250, 252, 0.85) 0%, rgba(226, 232, 240, 0.9) 100%);
    backdrop-filter: blur(5px);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
    padding: 120px 0 60px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    color: #1A1A1A;
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #FACC15;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.hero-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(250, 204, 21, 0.9);
    color: #1A1A1A;
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
}

.hero-badge i {
    margin-right: 8px;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    color: #FACC15;
    font-size: 1.2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ===== SECTION STYLES ===== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1A1A1A;
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== ABOUT SECTION ===== */
.about {
    padding: 100px 0;
    background: #ffffff;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background: #ffffff;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid #f1f5f9;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #FACC15, #F59E0B);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2rem;
    color: #1A1A1A;
}

.feature-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: #1A1A1A;
    margin-bottom: 15px;
}

.feature-description {
    color: #666;
    line-height: 1.6;
}

/* ===== CURRICULUM SECTION ===== */
.curriculum {
    padding: 100px 0;
    background: #f8fafc;
}

.curriculum-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
}

.curriculum-modules {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.module-card {
    background: #ffffff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.module-card:hover {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.module-header {
    display: flex;
    align-items: center;
    padding: 25px 30px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.module-header:hover {
    background: #f8fafc;
}

.module-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #FACC15, #F59E0B);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #1A1A1A;
    margin-right: 20px;
}

.module-info {
    flex: 1;
}

.module-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1A1A1A;
    margin-bottom: 5px;
}

.module-duration {
    color: #666;
    font-size: 0.9rem;
}

.module-toggle {
    color: #FACC15;
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.module-card.active .module-toggle {
    transform: rotate(180deg);
}

.module-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.module-card.active .module-content {
    max-height: 500px;
}

.lesson-list {
    padding: 0 30px 25px;
}

.lesson-item {
    display: flex;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #f1f5f9;
}

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

.lesson-item i {
    color: #FACC15;
    margin-right: 15px;
    width: 20px;
}

.lesson-item span:first-of-type {
    flex: 1;
    color: #333;
}

.lesson-duration {
    color: #666;
    font-size: 0.9rem;
}

.curriculum-sidebar {
    position: sticky;
    top: 120px;
    height: fit-content;
}

.course-info-card {
    background: #ffffff;
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.course-info-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #1A1A1A;
    margin-bottom: 25px;
    text-align: center;
}

.course-features {
    margin-bottom: 30px;
}

.course-features li {
    display: flex;
    align-items: center;
    padding: 10px 0;
    color: #333;
}

.course-features i {
    color: #FACC15;
    margin-right: 15px;
    width: 20px;
}

/* ===== INSTRUCTOR SECTION ===== */
.instructor {
    padding: 100px 0;
    background: #ffffff;
}

.instructor-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.instructor-image {
    position: relative;
}

.instructor-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.instructor-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(250, 204, 21, 0.9);
    color: #1A1A1A;
    padding: 12px 20px;
    border-radius: 50px;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.instructor-badge i {
    margin-right: 8px;
}

.instructor-info .section-header {
    text-align: left;
    margin-bottom: 40px;
}

.instructor-name {
    font-size: 2rem;
    font-weight: 700;
    color: #1A1A1A;
    margin-bottom: 10px;
}

.instructor-title {
    font-size: 1.2rem;
    color: #FACC15;
    font-weight: 600;
    margin-bottom: 20px;
}

.instructor-bio {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.7;
    margin-bottom: 30px;
}

.instructor-achievements {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
}

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

.achievement-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: #FACC15;
    display: block;
    margin-bottom: 5px;
}

.achievement-label {
    font-size: 0.9rem;
    color: #666;
}

.instructor-credentials {
    margin-bottom: 30px;
}

.instructor-credentials h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1A1A1A;
    margin-bottom: 15px;
}

.credentials-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.credentials-list li {
    display: flex;
    align-items: center;
    color: #333;
    font-size: 0.95rem;
}

.credentials-list i {
    color: #FACC15;
    margin-right: 10px;
    width: 20px;
}

.instructor-social {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 45px;
    height: 45px;
    background: #f8fafc;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #FACC15;
    color: #1A1A1A;
    transform: translateY(-3px);
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
    padding: 100px 0;
    background: #f8fafc;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.testimonial-card {
    background: #ffffff;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.testimonial-rating {
    display: flex;
    gap: 5px;
    margin-bottom: 20px;
}

.testimonial-rating i {
    color: #FACC15;
    font-size: 1.1rem;
}

.testimonial-text {
    font-size: 1.1rem;
    color: #333;
    line-height: 1.6;
    margin-bottom: 25px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.author-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1A1A1A;
    margin-bottom: 5px;
}

.author-title {
    font-size: 0.9rem;
    color: #666;
}

.testimonial-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    padding: 40px 0;
    background: #ffffff;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

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

.testimonial-stats .stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #FACC15;
    display: block;
    margin-bottom: 10px;
}

.testimonial-stats .stat-label {
    font-size: 1rem;
    color: #666;
    font-weight: 500;
}

/* ===== PRICING SECTION ===== */
.pricing {
    padding: 100px 0;
    background: #ffffff;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.pricing-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid transparent;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
    border-color: #FACC15;
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #FACC15, #F59E0B);
    color: #1A1A1A;
    padding: 8px 25px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
}

.pricing-header {
    margin-bottom: 30px;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1A1A1A;
    margin-bottom: 10px;
}

.plan-description {
    color: #666;
    margin-bottom: 20px;
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 5px;
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: #FACC15;
}

.amount {
    font-size: 3rem;
    font-weight: 800;
    color: #1A1A1A;
}

.period {
    font-size: 1rem;
    color: #666;
}

.pricing-features {
    margin-bottom: 30px;
}

.features-list li {
    display: flex;
    align-items: center;
    padding: 10px 0;
    color: #333;
}

.features-list i {
    margin-right: 15px;
    width: 20px;
}

.features-list .fa-check {
    color: #10B981;
}

.features-list .fa-times {
    color: #EF4444;
}

.guarantee-section {
    text-align: center;
    padding: 40px;
    background: #f8fafc;
    border-radius: 20px;
}

.guarantee-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.guarantee-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #FACC15, #F59E0B);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #1A1A1A;
}

.guarantee-text h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1A1A1A;
    margin-bottom: 10px;
}

.guarantee-text p {
    color: #666;
    margin: 0;
}

/* ===== FAQ SECTION ===== */
.faq {
    padding: 100px 0;
    background: #f8fafc;
}

.faq-content {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: #ffffff;
    border-radius: 15px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 25px 30px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: #f8fafc;
}

.faq-question h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1A1A1A;
    margin: 0;
}

.faq-question i {
    color: #FACC15;
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 30px 25px;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: 100px 0;
    background: #ffffff;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 40px;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #FACC15, #F59E0B);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: #1A1A1A;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1A1A1A;
    margin-bottom: 10px;
}

.contact-details p {
    color: #666;
    margin-bottom: 5px;
}

.social-links h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1A1A1A;
    margin-bottom: 20px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons .social-link {
    width: 50px;
    height: 50px;
    background: #f8fafc;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.social-icons .social-link:hover {
    background: #FACC15;
    color: #1A1A1A;
    transform: translateY(-3px);
}

.contact-form {
    background: #f8fafc;
    padding: 40px;
    border-radius: 20px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: #1A1A1A;
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: #ffffff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #FACC15;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== FOOTER ===== */
.footer {
    background: #1A1A1A;
    color: #ffffff;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo img {
    height: 50px;
    width: auto;
    margin-bottom: 15px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.footer-tagline {
    color: #FACC15;
    font-weight: 600;
    margin-bottom: 15px;
}

.footer-description {
    color: #ccc;
    line-height: 1.6;
    margin-bottom: 25px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social .social-link {
    width: 40px;
    height: 40px;
    background: #333;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ccc;
    transition: all 0.3s ease;
}

.footer-social .social-link:hover {
    background: #FACC15;
    color: #1A1A1A;
}

.footer-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 20px;
}

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

.footer-links a {
    color: #ccc;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #FACC15;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid #333;
}

.footer-copyright p,
.footer-credits p {
    color: #ccc;
    margin: 0;
}

.footer-credits i {
    color: #EF4444;
    margin: 0 5px;
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #FACC15, #F59E0B);
    color: #1A1A1A;
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(250, 204, 21, 0.3);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .container {
        padding: 0 30px;
    }
    
    .hero-content {
        gap: 40px;
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .curriculum-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .instructor-content {
        gap: 40px;
    }
    
    .contact-content {
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 50px;
        gap: 30px;
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-cta {
        margin: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 30px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-features {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .instructor-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .instructor-info .section-header {
        text-align: center;
    }
    
    .instructor-achievements {
        justify-content: center;
    }
    
    .credentials-list {
        grid-template-columns: 1fr;
    }
    
    .instructor-social {
        justify-content: center;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-stats {
        flex-direction: column;
        gap: 30px;
    }
    
    .pricing-cards {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-10px);
    }
    
    .guarantee-content {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-large {
        padding: 14px 30px;
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .module-header {
        padding: 20px;
    }
    
    .module-number {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }
    
    .course-info-card {
        padding: 30px 20px;
    }
    
    .pricing-card {
        padding: 30px 20px;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-link {
        animation: none;
    }
}

/* Focus styles for accessibility */
button:focus,
a:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid #FACC15;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn-primary {
        border: 2px solid #1A1A1A;
    }
    
    .btn-outline {
        border-width: 3px;
    }
}

/* Print styles */
@media print {
    .header,
    .back-to-top,
    .preloader {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .hero,
    .about,
    .curriculum,
    .instructor,
    .testimonials,
    .pricing,
    .contact {
        page-break-inside: avoid;
        padding: 20pt 0;
    }
}