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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'SUIT', 'Pretendard', -apple-system, sans-serif;
    line-height: 1.6;
    color: #111;
    background-color: #fff;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Top Banner */
.top-banner {
    background-color: #FFDD2B;
    padding: 16px 0;
    text-align: center;
    position: relative;
}

.banner-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

.kakao-icon {
    width: 34px;
    height: 30px;
    flex-shrink: 0;
}

.banner-text {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.6;
    color: #000;
}

.arrow-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

/* Header */
.main-header {
    background-color: #fff;
    padding: 24px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.logo img {
    width: 184px;
    height: 40px;
    object-fit: contain;
}

.main-nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 8px;
}

.main-nav a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    text-decoration: none;
    color: #777;
    font-size: 17px;
    font-weight: 500;
    letter-spacing: -0.01em;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-arrow {
    font-size: 20px;
    opacity: 0.5;
    transition: all 0.3s ease;
}

.main-nav a:hover {
    color: #2196F3;
    background-color: rgba(33, 150, 243, 0.05);
}

.main-nav a:hover .nav-arrow {
    opacity: 1;
    transform: translateX(2px);
}

.auth-buttons {
    display: flex;
    gap: 16px;
}

.btn-login,
.btn-signup {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    font-size: 17px;
    font-weight: 500;
    letter-spacing: -0.02em;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-login {
    background-color: #EFEFEF;
    color: #999;
}

.btn-signup {
    background-color: #2196F3;
    color: #fff;
}

.btn-login:hover {
    background-color: #E0E0E0;
    color: #666;
}

.btn-signup:hover {
    background-color: #1976D2;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.3);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background-color: #111;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero-section {
    padding: 80px 0 120px;
    background-color: #fff;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 72px;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.01em;
    margin-bottom: 24px;
    font-family: 'Maplestory OTF', 'SUIT', sans-serif;
}

.hero-title .highlight {
    color: #2196F3;
}

.hero-title .text-black {
    color: #111;
}

.hero-description {
    font-size: 24px;
    color: #555;
    line-height: 1.5;
    margin-bottom: 48px;
    letter-spacing: -0.01em;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.btn-primary,
.btn-secondary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.02em;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #2196F3;
    color: #fff;
}

.btn-secondary {
    background-color: #111;
    color: #fff;
}

.btn-primary:hover,
.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    background-color: #1976D2;
}

.btn-secondary:hover {
    background-color: #333;
}

.btn-primary svg,
.btn-secondary svg {
    width: 40px;
    height: 40px;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 560px;
    margin-top: 80px;
}

.circle-container {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    max-width: 2000px;
}

.circle-bg {
    position: absolute;
    width: 400px;
    height: 560px;
    border-radius: 620px;
    opacity: 0.8;
}

.circle-green {
    background-color: #00E37B;
    left: -200px;
    top: 0;
}

.circle-purple {
    background-color: #833DFF;
    left: 220px;
    top: 0;
}

.circle-yellow {
    background-color: #FFB91C;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
}

.circle-blue {
    background-color: #2196F3;
    right: 220px;
    top: 0;
}

.circle-orange {
    background-color: #FF693D;
    right: -200px;
    top: 0;
}

.hero-images {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    max-width: 1600px;
}

.child-image {
    position: absolute;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 8px solid #fff;
    transition: all 0.3s ease;
}

.child-image:hover {
    transform: scale(1.05);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.child-1 {
    width: 300px;
    height: 300px;
    top: 50px;
    left: 0;
    z-index: 4;
}

.child-2 {
    width: 250px;
    height: 250px;
    top: 200px;
    left: 280px;
    z-index: 3;
}

.child-3 {
    width: 350px;
    height: 350px;
    top: 100px;
    right: 280px;
    z-index: 2;
}

.child-4 {
    width: 280px;
    height: 280px;
    top: 180px;
    right: 0;
    z-index: 5;
}

/* Decoration Stars */
.deco-stars {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.star {
    position: absolute;
    animation: twinkle 3s ease-in-out infinite;
}

.star-1 {
    top: 100px;
    left: 10%;
    animation-delay: 0s;
}

.star-2 {
    top: 50px;
    right: 15%;
    animation-delay: 0.5s;
}

.star-3 {
    bottom: 150px;
    left: 20%;
    animation-delay: 1s;
}

.star-4 {
    bottom: 100px;
    right: 10%;
    animation-delay: 1.5s;
}

.star-5 {
    top: 250px;
    left: 5%;
    animation-delay: 2s;
}

@keyframes twinkle {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1) rotate(0deg);
    }
    50% {
        opacity: 1;
        transform: scale(1.2) rotate(180deg);
    }
}

/* Section Common Styles */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 62px;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
    font-family: 'Maplestory OTF', 'SUIT', sans-serif;
}

.section-desc {
    font-size: 24px;
    color: #555;
    line-height: 1.6;
    letter-spacing: -0.01em;
    font-family: 'SUIT', sans-serif;
}

/* Special Method Section */
.special-method {
    padding: 60px 0;
    background-color: #fff;
}

.method-wrapper {
    background-color: #F9F9F9;
    border-radius: 180px 24px 24px 24px;
    padding: 60px;
    position: relative;
    display: flex;
    align-items: center;
    gap: 60px;
}

.method-illustration {
    flex: 0 0 492px;
}

.method-illustration img {
    width: 100%;
    height: 447px;
    object-fit: cover;
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.method-cards {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.method-card {
    display: flex;
    align-items: flex-start;
    gap: 32px;
}

.card-icon-wrapper {
    flex: 0 0 120px;
}

.card-icon {
    width: 120px;
    height: 120px;
    background-color: #fff;
    border-radius: 16px;
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.card-icon:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.card-icon img {
    width: 80px;
    height: 80px;
}

.method-card h3 {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 10px;
    color: #252525;
    letter-spacing: -0.02em;
}

.method-card p {
    font-size: 20px;
    color: #555;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

/* AI Analysis Section */
.ai-analysis {
    padding: 60px 0 100px;
    background-color: #fff;
}

.ai-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-width: 1280px;
    margin: 0 auto;
}

.feature-row {
    display: flex;
    gap: 40px;
}

.ai-feature {
    flex: 1;
    background-color: #fff;
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.08);
    position: relative;
    transition: all 0.3s ease;
}

.ai-feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.feature-icon-bg {
    position: absolute;
    top: 45px;
    right: 45px;
    width: 72px;
    height: 72px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon-bg.green {
    background-color: #00E37B;
    box-shadow: 10px 10px 16px rgba(0, 227, 123, 0.25);
}

.feature-icon-bg.yellow {
    background-color: #FFB91C;
    box-shadow: 10px 10px 16px rgba(255, 185, 28, 0.25);
}

.feature-icon-bg.purple {
    background-color: #833DFF;
    box-shadow: 10px 10px 16px rgba(131, 61, 255, 0.25);
}

.feature-icon-bg.orange {
    background-color: #FF693D;
    box-shadow: 10px 10px 16px rgba(255, 105, 61, 0.25);
}

.ai-feature h3 {
    font-size: 34px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #000;
    letter-spacing: -0.02em;
}

.ai-feature p {
    font-size: 21px;
    color: #555;
    line-height: 1.5;
    letter-spacing: -0.01em;
}

/* Teachers Section */
.teachers {
    padding: 100px 0;
    background-color: #F9F9F9;
    position: relative;
}

.teacher-gallery {
    display: flex;
    gap: 60px;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.teacher-card {
    width: 461px;
    height: 376px;
    border-radius: 26px;
    overflow: hidden;
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.08);
    position: relative;
    transition: all 0.3s ease;
}

.teacher-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.teacher-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.teacher-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
    color: #fff;
    padding: 30px;
    transform: translateY(100%);
    transition: all 0.3s ease;
}

.teacher-card:hover .teacher-overlay {
    transform: translateY(0);
}

.teacher-overlay h4 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 5px;
}

.teacher-overlay p {
    font-size: 16px;
    opacity: 0.9;
}

.teacher-deco {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.teacher-deco .star:first-child {
    position: absolute;
    top: 50px;
    left: 100px;
    animation: float 4s ease-in-out infinite;
}

.teacher-deco .star:last-child {
    position: absolute;
    bottom: 80px;
    right: 150px;
    animation: float 4s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* Verification Section */
.verification {
    padding: 50px 0 100px;
    background-color: #F9F9F9;
}

.verification-cards {
    display: flex;
    gap: 40px;
    justify-content: center;
    align-items: center;
}

.verify-card {
    background-color: #fff;
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.08);
    text-align: center;
    width: 460px;
    transition: all 0.3s ease;
}

.verify-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.verify-card.featured {
    width: 560px;
    padding: 48px;
    transform: scale(1.05);
}

.verify-icon {
    width: 98px;
    height: 98px;
    border-radius: 50%;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 10px 10px 16px rgba(204, 204, 204, 0.25);
}

.verify-card:first-child .verify-icon {
    background-color: #FF693D;
}

.verify-card.featured .verify-icon {
    background-color: #2196F3;
}

.verify-card:last-child .verify-icon {
    background-color: #833DFF;
}

.verify-icon img {
    width: 60px;
    height: 60px;
}

.star-rating {
    margin-bottom: 17px;
    font-size: 24px;
}

.verify-card h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 13px;
    color: #111;
    letter-spacing: -0.02em;
}

.verify-card p {
    font-size: 19px;
    color: #555;
    line-height: 1.5;
    margin-bottom: 26px;
    letter-spacing: -0.01em;
}

.check-list {
    list-style: none;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 13px;
}

.check-list li {
    background-color: #FFF5F1;
    border-radius: 8px;
    padding: 14px;
    font-size: 20px;
    font-weight: 600;
    color: #FF693D;
    letter-spacing: -0.01em;
}

.check-list.blue li {
    background-color: #F1F9FF;
    color: #2196F3;
}

.verify-card:last-child .check-list li {
    background-color: #FDF1FF;
    color: #833DFF;
}

/* Pricing Section */
.pricing {
    padding: 50px 0 100px;
    background-color: #F9F9F9;
}

.pricing-comparison {
    display: flex;
    gap: 40px;
    justify-content: center;
    align-items: center;
}

.price-card {
    background-color: #fff;
    border-radius: 24px;
    padding: 48px 41px;
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.08);
    text-align: center;
    width: 480px;
    transition: all 0.3s ease;
}

.price-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.price-card.featured {
    width: 560px;
    padding: 56px 48px;
    transform: scale(1.05);
    border: 3px solid #2196F3;
}

.price-card h3 {
    font-size: 34px;
    font-weight: 800;
    color: #999;
    margin-bottom: 34px;
    letter-spacing: -0.02em;
}

.company-logo {
    width: 304px;
    height: 65px;
    margin: 0 auto 40px;
}

.price {
    margin-bottom: 41px;
}

.amount {
    font-size: 48px;
    font-weight: 800;
    color: #000;
}

.period {
    font-size: 24px;
    font-weight: 500;
    color: #999;
}

.features {
    list-style: none;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 48px;
}

.features li {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 24px;
    font-weight: 600;
    color: #999;
    letter-spacing: -0.02em;
}

.features .icon {
    font-size: 27px;
    flex-shrink: 0;
}

.features li.positive {
    color: #2196F3;
}

.features li.neutral .icon {
    color: #999;
}

.features li.warning .icon {
    color: #FF9800;
}

.features li.negative .icon {
    color: #E91E63;
}

.cta-button {
    width: 100%;
    background-color: #2196F3;
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 16px;
    font-size: 24px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background-color: #1976D2;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(33, 150, 243, 0.3);
}

/* Testimonials Section */
.testimonials {
    padding: 80px 0 100px;
    background-color: #fff;
    position: relative;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 1520px;
    margin: 0 auto;
}

.testimonial-card {
    background-color: #fff;
    border-radius: 24px;
    padding: 60px 48px;
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.08);
    display: flex;
    gap: 40px;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.profile {
    flex-shrink: 0;
}

.profile img {
    width: 225px;
    height: 225px;
    border-radius: 50%;
    object-fit: cover;
}

.quote-icon {
    margin-bottom: 20px;
}

.review {
    font-size: 22px;
    font-weight: 600;
    color: #555;
    line-height: 1.45;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.author {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.testimonial-card:nth-child(1) .author {
    color: #2196F3;
}

.testimonial-card:nth-child(2) .author {
    color: #FFB91C;
}

.testimonial-card:nth-child(3) .author {
    color: #833DFF;
}

.testimonial-card:nth-child(4) .author {
    color: #E95951;
}

.testimonial-deco {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.testimonial-deco .star:first-child {
    position: absolute;
    top: 100px;
    right: 200px;
    animation: twinkle 3s ease-in-out infinite;
}

.testimonial-deco .star:last-child {
    position: absolute;
    bottom: 120px;
    left: 150px;
    animation: twinkle 3s ease-in-out infinite;
    animation-delay: 1.5s;
}

/* Learning Environment Section */
.learning-environment {
    padding: 40px 0 100px;
    background-color: #fff;
}

.environment-cards {
    display: flex;
    gap: 40px;
}

.env-card {
    flex: 1;
    background-color: #fff;
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.env-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.card-number {
    font-size: 40px;
    font-weight: 800;
    color: #2196F3;
    margin-bottom: 28px;
    letter-spacing: -0.02em;
}

.env-card:nth-child(2) .card-number {
    color: #FF693D;
}

.env-card:nth-child(3) .card-number {
    color: #833DFF;
}

.card-content h3 {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.divider {
    width: 100%;
    height: 1px;
    background-color: #E0E0E0;
    margin-bottom: 24px;
}

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

.feature h4 {
    font-size: 23px;
    font-weight: 700;
    margin-bottom: 4px;
    color: #2196F3;
    letter-spacing: -0.01em;
}

.env-card:nth-child(2) .feature h4 {
    color: #FF693D;
}

.env-card:nth-child(3) .feature h4 {
    color: #833DFF;
}

.feature ul {
    list-style: disc;
    padding-left: 28px;
    color: #999;
    font-size: 21px;
    font-weight: 600;
    line-height: 1.5;
    letter-spacing: -0.01em;
}

.card-decoration {
    position: absolute;
    top: -20px;
    right: -20px;
    opacity: 0.3;
}

/* Footer */
.main-footer {
    background-color: #222;
    color: #fff;
    padding: 80px 0;
}

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

.footer-content {
    display: flex;
    gap: 60px;
    margin-bottom: 40px;
}

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

.footer-logo img {
    width: 184px;
    height: 40px;
}

.footer-info {
    flex: 1;
}

.company-info h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
    margin-bottom: 40px;
}

.info-grid p {
    font-size: 16px;
    color: #CCC;
    letter-spacing: -0.02em;
    line-height: 1.5;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: -0.02em;
    transition: all 0.3s ease;
}

.social-links a:hover {
    color: #2196F3;
}

.copyright {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid #333;
}

.copyright p {
    font-size: 14px;
    color: #666;
    letter-spacing: -0.02em;
}

/* Mobile Menu */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 998;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100%;
    background-color: #fff;
    z-index: 999;
    transition: right 0.3s ease;
    overflow-y: auto;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-overlay.active {
    display: block;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #EEE;
}

.mobile-menu-header img {
    width: 150px;
    height: 32px;
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu ul {
    list-style: none;
    padding: 20px;
}

.mobile-menu li {
    margin-bottom: 20px;
}

.mobile-menu a {
    color: #111;
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.mobile-auth-buttons {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mobile-auth-buttons button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
    
    .hero-title {
        font-size: 56px;
    }
    
    .section-title {
        font-size: 48px;
    }
    
    .teacher-gallery {
        flex-wrap: wrap;
    }
    
    .teacher-card {
        width: calc(50% - 30px);
    }
}

@media (max-width: 992px) {
    /* Header */
    .main-nav {
        display: none;
    }
    
    .auth-buttons {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    /* Hero */
    .hero-title {
        font-size: 48px;
    }
    
    .hero-description {
        font-size: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 400px;
    }
    
    .hero-visual {
        height: 400px;
        margin-top: 60px;
    }
    
    .circle-bg {
        width: 300px;
        height: 400px;
    }
    
    .child-image {
        width: 200px !important;
        height: 200px !important;
    }
    
    /* Method */
    .method-wrapper {
        flex-direction: column;
        border-radius: 24px;
        padding: 40px;
    }
    
    .method-illustration {
        flex: 1;
        max-width: 100%;
    }
    
    /* AI Features */
    .feature-row {
        flex-direction: column;
    }
    
    /* Teachers */
    .teacher-card {
        width: 100%;
        max-width: 400px;
    }
    
    /* Verification */
    .verification-cards {
        flex-direction: column;
        align-items: center;
    }
    
    .verify-card.featured {
        transform: scale(1);
    }
    
    /* Pricing */
    .pricing-comparison {
        flex-direction: column;
        align-items: center;
    }
    
    .price-card.featured {
        transform: scale(1);
    }
    
    /* Testimonials */
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
    
    /* Environment */
    .environment-cards {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    /* Banner */
    .banner-content {
        flex-direction: column;
        gap: 5px;
    }
    
    .banner-text {
        font-size: 16px;
    }
    
    /* Hero */
    .hero-section {
        padding: 60px 0 80px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-description {
        font-size: 18px;
    }
    
    .hero-visual {
        display: none;
    }
    
    /* Sections */
    .section-title {
        font-size: 36px;
    }
    
    .section-desc {
        font-size: 18px;
    }
    
    /* Method */
    .method-card {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    /* Features */
    .ai-feature {
        padding: 30px;
    }
    
    .ai-feature h3 {
        font-size: 28px;
        padding-right: 80px;
    }
    
    .ai-feature p {
        font-size: 18px;
    }
    
    /* Testimonials */
    .testimonial-card {
        flex-direction: column;
        padding: 40px 30px;
        text-align: center;
    }
    
    .profile img {
        width: 150px;
        height: 150px;
    }
    
    /* Footer */
    .footer-content {
        flex-direction: column;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    /* Container */
    .container {
        padding: 0 16px;
    }
    
    /* Hero */
    .hero-title {
        font-size: 28px;
    }
    
    .hero-description {
        font-size: 16px;
        margin-bottom: 32px;
    }
    
    .btn-primary,
    .btn-secondary {
        font-size: 18px;
        padding: 10px 20px;
    }
    
    .btn-primary svg,
    .btn-secondary svg {
        width: 24px;
        height: 24px;
    }
    
    /* Sections */
    .section-title {
        font-size: 28px;
    }
    
    .section-desc {
        font-size: 16px;
    }
    
    /* Cards */
    .method-card h3 {
        font-size: 24px;
    }
    
    .method-card p {
        font-size: 16px;
    }
    
    .ai-feature h3 {
        font-size: 24px;
    }
    
    .ai-feature p {
        font-size: 16px;
    }
    
    .verify-card {
        padding: 30px 20px;
    }
    
    .verify-card h3 {
        font-size: 24px;
    }
    
    .verify-card p {
        font-size: 16px;
    }
    
    .price-card {
        padding: 30px 20px;
    }
    
    .amount {
        font-size: 32px;
    }
    
    .features li {
        font-size: 18px;
    }
    
    .review {
        font-size: 18px;
    }
    
    .env-card {
        padding: 30px 20px;
    }
    
    .card-content h3 {
        font-size: 24px;
    }
    
    .feature h4 {
        font-size: 18px;
    }
    
    .feature ul {
        font-size: 16px;
    }
}