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

:root {
    --primary-purple: #8b5cf6;
    --dark-purple: #6d28d9;
    --light-purple: #a78bfa;
    --bg-dark: #0f0a1e;
    --bg-darker: #0a0514;
    --bg-card: #1a1332;
    --text-white: #ffffff;
    --text-gray: #a0a0b8;
    --gradient-1: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    --gradient-2: linear-gradient(135deg, #6d28d9 0%, #8b5cf6 100%);
    --gradient-3: linear-gradient(135deg, #ec4899 0%, #f59e0b 100%);
}

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

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

/* Header */
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 5, 20, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(139, 92, 246, 0.2);
}

#header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
}

nav a:hover {
    color: var(--primary-purple);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s;
}

nav a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-white);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(236, 72, 153, 0.15) 0%, transparent 50%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--text-white);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(139, 92, 246, 0.4);
}

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

.btn-outline:hover {
    background: var(--primary-purple);
    transform: translateY(-3px);
}

.hero-card {
    position: relative;
    width: 100%;
    height: 500px;
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid rgba(139, 92, 246, 0.3);
    overflow: hidden;
}

.glow-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: var(--gradient-1);
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.2); }
}

/* Multiply Section */
.multiply-section {
    padding: 6rem 0;
    background: var(--bg-darker);
}

.multiply-content {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.giant-number {
    font-size: 5rem;
    display: inline-block;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-gray);
}

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

.stat-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    border: 1px solid rgba(139, 92, 246, 0.2);
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-purple);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.3);
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.stat-card h3 {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--text-gray);
}

/* Courses Section */
.courses-section {
    padding: 6rem 0;
    background: var(--bg-dark);
}

.courses-section .section-title,
.courses-section .section-subtitle {
    text-align: center;
    margin-bottom: 3rem;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.course-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(139, 92, 246, 0.2);
    position: relative;
    transition: all 0.3s;
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.3);
}

.course-card.featured {
    border: 2px solid var(--primary-purple);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(26, 19, 50, 1) 100%);
}

.course-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--gradient-1);
    color: var(--text-white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.bonus-badge {
    background: var(--gradient-3);
}

.course-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.course-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.course-duration {
    color: var(--primary-purple);
    font-weight: 600;
    margin-bottom: 1rem;
}

.course-description {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.course-highlights {
    list-style: none;
}

.course-highlights li {
    padding: 0.5rem 0;
    color: var(--text-gray);
    border-bottom: 1px solid rgba(139, 92, 246, 0.1);
}

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

/* Benefits Section */
.benefits-section {
    padding: 6rem 0;
    background: var(--bg-darker);
}

.benefits-section .section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(139, 92, 246, 0.2);
    transition: all 0.3s;
    position: relative;
    padding-left: 5rem;
}

.benefit-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-purple);
}

.benefit-number {
    position: absolute;
    left: 2rem;
    top: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
}

.benefit-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.benefit-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* Curriculum Section */
.curriculum-section {
    padding: 6rem 0;
    background: var(--bg-dark);
}

.curriculum-section .section-title,
.curriculum-section .section-subtitle {
    text-align: center;
    margin-bottom: 3rem;
}

.tabs {
    margin-top: 3rem;
}

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

.tab-btn {
    padding: 1rem 2.5rem;
    background: var(--bg-card);
    border: 2px solid rgba(139, 92, 246, 0.2);
    border-radius: 50px;
    color: var(--text-white);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
}

.tab-btn:hover {
    border-color: var(--primary-purple);
}

.tab-btn.active {
    background: var(--gradient-1);
    border-color: transparent;
}

.tab-content {
    display: none;
}

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

.accordion {
    max-width: 900px;
    margin: 0 auto;
}

.accordion-item {
    background: var(--bg-card);
    margin-bottom: 1rem;
    border-radius: 10px;
    border: 1px solid rgba(139, 92, 246, 0.2);
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
    text-align: left;
}

.accordion-header:hover {
    color: var(--primary-purple);
}

.accordion-icon {
    font-size: 1.5rem;
    font-weight: 300;
    transition: transform 0.3s;
}

.accordion-item.active .accordion-icon {
    transform: rotate(45deg);
}

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

.accordion-item.active .accordion-content {
    max-height: 1000px;
}

.lesson-list {
    list-style: none;
    padding: 0 1.5rem 1.5rem;
}

.lesson-list li {
    padding: 0.75rem 0;
    color: var(--text-gray);
    border-bottom: 1px solid rgba(139, 92, 246, 0.1);
}

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

/* Teachers Section */
.teachers-section {
    padding: 6rem 0;
    background: var(--bg-darker);
}

.teachers-section .section-title,
.teachers-section .section-subtitle {
    text-align: center;
    margin-bottom: 4rem;
}

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

.teacher-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(139, 92, 246, 0.2);
    text-align: center;
    transition: all 0.3s;
}

.teacher-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.3);
}

.teacher-image {
    width: 150px;
    height: 150px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-purple);
}

.teacher-placeholder {
    width: 100%;
    height: 100%;
    background: var(--gradient-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: 800;
}

.teacher-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.teacher-role {
    color: var(--primary-purple);
    font-weight: 600;
    margin-bottom: 1rem;
}

.teacher-bio {
    color: var(--text-gray);
    line-height: 1.8;
    text-align: left;
}

/* Certificate Section */
.certificate-section {
    padding: 6rem 0;
    background: var(--bg-dark);
}

.certificate-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.certificate-features {
    list-style: none;
    margin-top: 2rem;
}

.certificate-features li {
    padding: 0.75rem 0;
    color: var(--text-gray);
    font-size: 1.1rem;
}

.certificate-placeholder {
    background: var(--bg-card);
    border: 2px solid var(--primary-purple);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.certificate-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-1);
    opacity: 0.1;
}

.cert-seal {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.certificate-placeholder h3 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.cert-line {
    height: 2px;
    background: var(--gradient-1);
    margin: 1rem auto;
    width: 80%;
}

.cert-line.short {
    width: 50%;
}

/* Pricing Section */
.pricing-section {
    padding: 6rem 0;
    background: var(--bg-darker);
}

.pricing-section .section-title,
.pricing-section .section-subtitle {
    text-align: center;
    margin-bottom: 4rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto 3rem;
}

.pricing-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(139, 92, 246, 0.2);
    position: relative;
    transition: all 0.3s;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.3);
}

.pricing-card.featured {
    border: 2px solid var(--primary-purple);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(26, 19, 50, 1) 100%);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-1);
    color: var(--text-white);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
}

.pricing-header h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.pricing-description {
    color: var(--text-gray);
}

.pricing-price {
    text-align: center;
    margin-bottom: 2rem;
}

.currency {
    font-size: 1.5rem;
    vertical-align: top;
}

.amount {
    font-size: 4rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.period {
    font-size: 1.5rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.75rem 0;
    color: var(--text-gray);
    border-bottom: 1px solid rgba(139, 92, 246, 0.1);
}

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

.pricing-card .btn {
    width: 100%;
    text-align: center;
}

.pulse {
    animation: pulse-btn 2s ease-in-out infinite;
}

@keyframes pulse-btn {
    0%, 100% { box-shadow: 0 10px 30px rgba(139, 92, 246, 0.3); }
    50% { box-shadow: 0 10px 50px rgba(139, 92, 246, 0.6); }
}

.guarantee-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(139, 92, 246, 0.2);
    max-width: 500px;
    margin: 0 auto;
}

.guarantee-icon {
    font-size: 2.5rem;
}

.guarantee-text h4 {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
}

.guarantee-text p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* FAQ Section */
.faq-section {
    padding: 6rem 0;
    background: var(--bg-dark);
}

.faq-section .section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.faq-accordion {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    margin-bottom: 1rem;
    border-radius: 10px;
    border: 1px solid rgba(139, 92, 246, 0.2);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
    text-align: left;
}

.faq-question:hover {
    color: var(--primary-purple);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    transition: transform 0.3s;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-gray);
    line-height: 1.8;
}

/* Contact Section */
.contact-section {
    padding: 6rem 0;
    background: var(--bg-darker);
}

.contact-section .section-title,
.contact-section .section-subtitle {
    text-align: center;
    margin-bottom: 3rem;
}

.contact-card {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid rgba(139, 92, 246, 0.2);
    text-align: center;
}

.contact-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.contact-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.contact-card p {
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.btn-whatsapp {
    background: #25d366;
    color: var(--text-white);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
    background: #20ba5a;
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(37, 211, 102, 0.4);
}

.contact-phone {
    margin-top: 1rem;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-purple);
}

/* Footer */
.footer {
    background: var(--bg-darker);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(139, 92, 246, 0.2);
}

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

.footer-col h3,
.footer-col h4 {
    margin-bottom: 1rem;
    font-weight: 700;
}

.footer-col p {
    color: var(--text-gray);
    line-height: 1.8;
}

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

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

.footer-col a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-col a:hover {
    color: var(--primary-purple);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(139, 92, 246, 0.1);
    color: var(--text-gray);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-1);
    color: var(--text-white);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: all 0.3s;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.6);
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: var(--bg-darker);
        padding: 2rem;
        transition: left 0.3s;
        border-top: 1px solid rgba(139, 92, 246, 0.2);
    }

    nav.active {
        left: 0;
    }

    nav ul {
        flex-direction: column;
        gap: 1rem;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-card {
        height: 300px;
    }

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

    .giant-number {
        font-size: 3rem;
    }

    .courses-grid,
    .benefits-grid,
    .teachers-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .certificate-content {
        grid-template-columns: 1fr;
    }

    .tab-buttons {
        flex-direction: column;
    }

    .tab-btn {
        width: 100%;
    }

    .whatsapp-float {
        left: 20px;
        bottom: 90px;
    }

    .back-to-top {
        right: 20px;
        bottom: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .amount {
        font-size: 3rem;
    }
}