/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-primary-light: #818cf8;
    --color-secondary: #14b8a6;
    --color-secondary-dark: #0d9488;
    
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-text-lighter: #94a3b8;
    
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    
    /* Subject Colors */
    --color-maths: #ec4899;
    --color-english: #8b5cf6;
    --color-verbal: #06b6d4;
    --color-nonverbal: #f97316;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ===== Container ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ===== Section ===== */
.section {
    padding: var(--spacing-4xl) 0;
}

.section--alt {
    background-color: var(--color-gray-50);
}

.section__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-3xl);
}

.section__tag {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.section__title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.section__description {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.4);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(99, 102, 241, 0.5);
}

.btn--outline {
    border: 2px solid var(--color-gray-200);
    color: var(--color-text);
    background: var(--color-white);
}

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

.btn--ghost {
    color: var(--color-text);
    background: transparent;
}

.btn--ghost:hover {
    background: var(--color-gray-100);
}

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

.btn--white:hover {
    background: var(--color-gray-100);
    transform: translateY(-2px);
}

.btn--outline-white {
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--color-white);
    background: transparent;
}

.btn--outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn--large {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
}

/* ===== Header & Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-100);
    transition: all var(--transition-base);
}

.header--scrolled {
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav__logo {
    font-size: var(--font-size-xl);
    font-weight: 800;
    display: flex;
    align-items: center;
}

.logo-11 {
    color: var(--color-primary);
}

.logo-plus {
    color: var(--color-secondary);
}

.logo-prep {
    color: var(--color-text);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav__link {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-text-light);
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

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

.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav__toggle,
.nav__close {
    display: none;
    color: var(--color-text);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    padding: calc(80px + var(--spacing-4xl)) 0 var(--spacing-4xl);
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero__bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 50%, rgba(99, 102, 241, 0.05) 100%);
    z-index: -1;
}

.hero__bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-lg);
}

.hero__title {
    font-size: var(--font-size-6xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.hero__title .highlight {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__description {
    font-size: var(--font-size-xl);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    max-width: 540px;
}

.hero__cta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero__stats {
    display: flex;
    gap: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-gray-200);
}

.hero__stat {
    display: flex;
    flex-direction: column;
}

.hero__stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-primary);
}

.hero__stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.hero__image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__image-wrapper {
    position: relative;
    width: 100%;
    max-width: 500px;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.hero__image-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-white);
    gap: var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 500;
}

.hero__floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    font-size: var(--font-size-sm);
    font-weight: 600;
    animation: float 3s ease-in-out infinite;
}

.hero__floating-card--1 {
    top: 10%;
    left: -10%;
    animation-delay: 0s;
}

.hero__floating-card--2 {
    bottom: 15%;
    right: -5%;
    animation-delay: 1.5s;
}

.floating-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(34, 197, 94, 0.1);
    color: var(--color-success);
    border-radius: var(--radius-md);
}

.floating-card__icon--secondary {
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ===== Subjects Section ===== */
.subjects__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.subject-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.subject-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.subject-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.subject-card__icon--maths {
    background: rgba(236, 72, 153, 0.1);
    color: var(--color-maths);
}

.subject-card__icon--english {
    background: rgba(139, 92, 246, 0.1);
    color: var(--color-english);
}

.subject-card__icon--verbal {
    background: rgba(6, 182, 212, 0.1);
    color: var(--color-verbal);
}

.subject-card__icon--nonverbal {
    background: rgba(249, 115, 22, 0.1);
    color: var(--color-nonverbal);
}

.subject-card__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.subject-card__description {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.subject-card__topics {
    margin-bottom: var(--spacing-lg);
}

.subject-card__topics li {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.subject-card__topics li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

.subject-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    transition: gap var(--transition-fast);
}

.subject-card__link:hover {
    gap: var(--spacing-sm);
}

/* ===== How It Works Section ===== */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    position: relative;
}

.steps::before {
    content: '';
    position: absolute;
    top: 35px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    z-index: 0;
}

.step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step__number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 70px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    font-size: var(--font-size-2xl);
    font-weight: 800;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.4);
}

.step__title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.step__description {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.how-it-works__cta {
    text-align: center;
    margin-top: var(--spacing-3xl);
}

/* ===== Why Us / Features Section ===== */
.features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.feature {
    text-align: center;
    padding: var(--spacing-xl);
}

.feature__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 70px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(20, 184, 166, 0.1) 100%);
    color: var(--color-primary);
    border-radius: var(--radius-xl);
}

.feature__title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.feature__description {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* ===== Stats Banner ===== */
.stats-banner {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--spacing-3xl) 0;
}

.stats-banner__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    text-align: center;
}

.stats-banner__item {
    color: var(--color-white);
}

.stats-banner__number {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
}

.stats-banner__label {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* ===== Testimonials Section ===== */
.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.testimonial {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.testimonial:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.testimonial__stars {
    display: flex;
    gap: var(--spacing-xs);
    color: var(--color-warning);
    margin-bottom: var(--spacing-md);
}

.testimonial__quote {
    font-size: var(--font-size-base);
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.testimonial__author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.testimonial__avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    font-weight: 700;
    border-radius: var(--radius-full);
}

.testimonial__info {
    display: flex;
    flex-direction: column;
}

.testimonial__name {
    font-weight: 600;
    color: var(--color-text);
}

.testimonial__location {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* ===== FAQ Section ===== */
.faq__grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.faq__item {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
}

.faq__question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.faq__question svg {
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.faq__item[open] .faq__question svg {
    transform: rotate(180deg);
}

.faq__answer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.faq__answer p {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ===== CTA Section ===== */
.cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
}

.cta__content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta__title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.cta__description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.cta__actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.cta__note {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

/* ===== Footer ===== */
.footer {
    background: var(--color-text);
    color: var(--color-gray-300);
    padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.footer__logo {
    font-size: var(--font-size-xl);
    font-weight: 800;
    display: inline-flex;
    margin-bottom: var(--spacing-md);
}

.footer__logo .logo-11 {
    color: var(--color-primary-light);
}

.footer__logo .logo-plus {
    color: var(--color-secondary);
}

.footer__logo .logo-prep {
    color: var(--color-white);
}

.footer__tagline {
    font-size: var(--font-size-sm);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.footer__social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.footer__social-link:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.footer__heading {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__list a,
.footer__list li {
    font-size: var(--font-size-sm);
    color: var(--color-gray-300);
    transition: color var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__copyright {
    font-size: var(--font-size-sm);
}

.footer__legal {
    display: flex;
    gap: var(--spacing-xl);
}

.footer__legal a {
    font-size: var(--font-size-sm);
    color: var(--color-gray-300);
    transition: color var(--transition-fast);
}

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

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero__content {
        order: 1;
    }
    
    .hero__description {
        margin: 0 auto var(--spacing-xl);
    }
    
    .hero__cta {
        justify-content: center;
    }
    
    .hero__stats {
        justify-content: center;
    }
    
    .hero__image {
        order: 0;
        margin-bottom: var(--spacing-2xl);
    }
    
    .hero__floating-card--1 {
        left: 5%;
    }
    
    .hero__floating-card--2 {
        right: 5%;
    }
    
    .subjects__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .steps {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-2xl);
    }
    
    .steps::before {
        display: none;
    }
    
    .features__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-banner__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials__grid {
        grid-template-columns: 1fr;
    }
    
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-6xl: 2.5rem;
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
    }
    
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-white);
        padding: var(--spacing-4xl) var(--spacing-xl);
        box-shadow: var(--shadow-2xl);
        transition: right var(--transition-base);
        z-index: 1001;
    }
    
    .nav__menu.show-menu {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-lg);
    }
    
    .nav__close {
        display: block;
        position: absolute;
        top: var(--spacing-lg);
        right: var(--spacing-lg);
        font-size: var(--font-size-xl);
    }
    
    .nav__toggle {
        display: block;
    }
    
    .nav__actions {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding-top: calc(80px + var(--spacing-2xl));
    }
    
    .hero__image-wrapper {
        max-width: 350px;
    }
    
    .hero__floating-card {
        display: none;
    }
    
    .hero__stats {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-lg);
    }
    
    .hero__cta {
        flex-direction: column;
    }
    
    .subjects__grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .features__grid {
        grid-template-columns: 1fr;
    }
    
    .stats-banner__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .cta__actions {
        flex-direction: column;
        align-items: center;
    }
    
    .footer__grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer__social {
        justify-content: center;
    }
    
    .footer__bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .footer__legal {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .section {
        padding: var(--spacing-2xl) 0;
    }
    
    .btn--large {
        padding: 0.875rem 1.5rem;
        font-size: var(--font-size-base);
    }
}