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

:root {
    --primary-gradient: linear-gradient(135deg, #b74ddc 0%, #586ac8 100%);
    --primary-color: #b74ddc;
    --secondary-color: #586ac8;
    --text-primary: #1a1a1a;
    --text-secondary: #666;
    --text-light: #999;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 20px 60px rgba(183, 77, 220, 0.3);
    --border-radius: 20px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Montserrat', 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
    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(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: var(--transition);
}

.header__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 0;
}

.logo__text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav__link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: var(--transition);
}

.nav__link:hover::after {
    width: 100%;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    text-align: center;
}

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

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

.btn--gradient:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

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

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

.btn--large {
    padding: 1rem 3rem;
    font-size: 1.1rem;
}

.btn--full {
    width: 100%;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    padding-top: 80px;
    overflow: hidden;
}

.hero__stars {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, white, transparent),
        radial-gradient(2px 2px at 60% 70%, white, transparent),
        radial-gradient(1px 1px at 50% 50%, white, transparent),
        radial-gradient(1px 1px at 80% 10%, white, transparent),
        radial-gradient(2px 2px at 90% 40%, white, transparent),
        radial-gradient(1px 1px at 33% 60%, white, transparent),
        radial-gradient(1px 1px at 55% 80%, white, transparent);
    background-repeat: repeat;
    background-size: 200px 200px;
    animation: sparkle 20s linear infinite;
    opacity: 0.3;
}

@keyframes sparkle {
    from { transform: translateY(0); }
    to { transform: translateY(-200px); }
}

.hero__content {
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.hero__title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

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

.hero__subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.8;
}

.hero__stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-bottom: 3rem;
}

.stat {
    text-align: center;
}

.stat__number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat__label {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Section Styles */
section {
    padding: 6rem 0;
}

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

.section-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* About Section */
.about {
    background: var(--bg-white);
}

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

.about__paragraph {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.feature__icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.feature__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.feature__text {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Program Section */
.program {
    background: var(--bg-light);
}

.program__list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.program-item {
    display: flex;
    gap: 2rem;
    padding: 2rem;
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    align-items: flex-start;
}

.program-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-hover);
}

.program-item__number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    flex-shrink: 0;
    min-width: 60px;
}

.program-item__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.program-item__description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Teacher Section */
.teacher {
    background: var(--bg-white);
}

.teacher__content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.teacher__name {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.teacher__roles {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.teacher__role {
    padding: 0.5rem 1.5rem;
    background: var(--bg-light);
    border-radius: 50px;
    font-weight: 500;
    color: var(--text-primary);
}

.teacher__description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* Pricing Section */
.pricing {
    background: var(--bg-light);
}

.pricing__cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.pricing-card--featured {
    background: var(--primary-gradient);
    color: white;
    transform: scale(1.05);
}

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

.pricing-card__badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background: #ff6b6b;
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
}

.pricing-card__header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid rgba(0, 0, 0, 0.1);
}

.pricing-card--featured .pricing-card__header {
    border-bottom-color: rgba(255, 255, 255, 0.3);
}

.pricing-card__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.pricing-card__price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.pricing-card__amount {
    font-size: 3rem;
    font-weight: 800;
}

.pricing-card__currency {
    font-size: 1.5rem;
    font-weight: 600;
}

.pricing-card__savings {
    font-size: 1.1rem;
    font-weight: 600;
    color: #4ade80;
    margin-bottom: 0.5rem;
}

.pricing-card--featured .pricing-card__savings {
    color: #ffd700;
}

.pricing-card__old-price {
    font-size: 1.2rem;
    text-decoration: line-through;
    opacity: 0.6;
}

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

.pricing-card__feature {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    color: var(--text-secondary);
}

.pricing-card--featured .pricing-card__feature {
    color: rgba(255, 255, 255, 0.9);
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

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

.pricing-card__feature--highlight {
    font-weight: 700;
    color: var(--primary-color);
}

.pricing-card--featured .pricing-card__feature--highlight {
    color: #ffd700;
}

/* CTA Section */
.cta {
    background: var(--primary-gradient);
    color: white;
    text-align: center;
    padding: 6rem 0;
}

.cta__title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta__text {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta .btn--gradient {
    background: white;
    color: var(--primary-color);
}

.cta .btn--gradient:hover {
    background: var(--bg-light);
    transform: translateY(-3px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0;
}

.footer__content {
    text-align: center;
}

.footer__logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.footer__links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer__link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer__link:hover {
    color: white;
}

.footer__copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header__content {
        flex-wrap: wrap;
        gap: 1rem;
    }

    .nav {
        order: 3;
        width: 100%;
        justify-content: center;
        gap: 1rem;
        font-size: 0.9rem;
    }

    .hero__title {
        font-size: 2.5rem;
    }

    .hero__subtitle {
        font-size: 1.1rem;
    }

    .hero__stats {
        gap: 2rem;
    }

    .stat__number {
        font-size: 2rem;
    }

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

    .section-subtitle {
        font-size: 1.1rem;
    }

    .features {
        grid-template-columns: 1fr;
    }

    .program-item {
        flex-direction: column;
        gap: 1rem;
    }

    .program-item__number {
        font-size: 2rem;
    }

    .pricing__cards {
        grid-template-columns: 1fr;
    }

    .pricing-card--featured {
        transform: scale(1);
    }

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

    .cta__title {
        font-size: 2rem;
    }

    .footer__links {
        flex-direction: column;
        gap: 1rem;
    }
}

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

    .hero__stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .btn--large {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
}