/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
    /* Colors */
    --primary: #5e5be0;
    --primary-dark: #4a47b3;
    --primary-light: #7b78e8;
    --text-dark: #202020;
    --text-base: #505050;
    --text-light: #808080;
    --white: #fff;
    --black: #000;
    --gray-100: #fdfeff;
    --gray-200: #f5f5f5;
    --gray-300: #e3e3e3;
    --gray-400: #d9d9d9;
    --gray-500: #bebebe;

    /* Typography */
    --font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-bold: 700;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Layout */
    --container-max: 1200px;
    --header-height: 80px;
    --header-height-mobile: 60px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 50%;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    font-weight: var(--font-light);
    line-height: 1.6;
    color: var(--text-base);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

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

ul, ol {
    list-style: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ===================================
   Utility Classes
   =================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: 10000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.brand {
    color: var(--primary);
    font-weight: var(--font-bold);
}

.brand-logo {
    display: inline-block;
    vertical-align: middle;
    height: 1.2em;
    width: auto;
    margin: 0 0.2em;
}

/* ===================================
   Header
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    transition: all var(--transition-base);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: none;
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.logo {
    width: 150px;
    height: 40px;
}

.logo a {
    display: block;
    width: 100%;
    height: 100%;
    background: url('../images/common/logo-white.png') no-repeat center / contain;
}

.header.scrolled .logo a {
    background-image: url('../images/common/logo-origin.png');
}

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

.nav-list a {
    font-size: 1.125rem;
    font-weight: var(--font-bold);
    text-transform: uppercase;
    color: var(--white);
    transition: color var(--transition-fast);
}

.header.scrolled .nav-list a {
    color: var(--text-dark);
}

.nav-list a:hover,
.nav-list a:focus {
    color: var(--primary);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 22px;
    padding: 0;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--white);
    transition: all var(--transition-fast);
}

.header.scrolled .mobile-menu-btn span {
    background: var(--text-dark);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-list {
    text-align: center;
}

.mobile-nav-list li {
    margin: var(--spacing-md) 0;
}

.mobile-nav-list a {
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    text-transform: uppercase;
    color: var(--text-dark);
    padding: var(--spacing-sm) var(--spacing-lg);
    display: block;
    border-bottom: 1px solid var(--gray-300);
}

.mobile-nav-list a:hover {
    color: var(--primary);
}

.mobile-menu-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 2.5rem;
    color: var(--text-dark);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

.hero-slider {
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
}

.slide.active {
    opacity: 1;
    visibility: visible;
}

.slide-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: transform 5s ease-in-out 1s;
}

.slide[data-slide="1"] .slide-bg {
    background-image: url('../images/contents/slider-1.jpg');
}

.slide[data-slide="2"] .slide-bg {
    background-image: url('../images/contents/slider-2.jpg');
}

.slide[data-slide="3"] .slide-bg {
    background-image: url('../images/contents/slider-3.jpg');
}

.slide.active .slide-bg {
    transform: scale(1.1);
}

.slide-content {
    position: absolute;
    top: 45%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    max-width: 1200px;
    padding: 0 var(--spacing-lg);
    color: var(--white);
}

.slide-subtitle {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: var(--font-light);
    margin-bottom: var(--spacing-xs);
    animation: fadeInUp 0.8s ease forwards;
}

.slide-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: var(--font-bold);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease 0.2s forwards;
}

.slide-desc {
    font-size: clamp(1rem, 2vw, 1.5rem);
    font-weight: var(--font-regular);
    line-height: 1.6;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.4s forwards;
}

.slide-phone {
    position: absolute;
    bottom: -200px;
    left: var(--spacing-lg);
    width: 300px;
    animation: fadeInUp 1s ease 0.6s forwards;
}

/* Slider Controls */
.slider-controls {
    position: absolute;
    bottom: 80px;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 0 var(--spacing-lg);
    z-index: 10;
}

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

.dot {
    width: 16px;
    height: 16px;
    border-radius: var(--radius-full);
    border: 2px solid var(--white);
    background: transparent;
    transition: all var(--transition-fast);
}

.dot.active {
    width: 24px;
    height: 24px;
    border-width: 3px;
}

.slider-progress {
    flex: 1;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar {
    width: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.6);
    transition: width 6s linear;
}

.slide.active ~ .slider-controls .progress-bar,
.hero-slider:has(.slide.active) + .slider-controls .progress-bar {
    width: 100%;
}

.slider-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.slider-buttons button {
    width: 24px;
    height: 24px;
    color: var(--white);
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.slider-buttons button.active {
    opacity: 1;
}

.slider-buttons svg {
    width: 100%;
    height: 100%;
}

/* ===================================
   Section Common Styles
   =================================== */
.section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: var(--font-medium);
    line-height: 1.4;
    color: var(--text-dark);
}

.section-title.light {
    color: var(--white);
}

/* ===================================
   Video Section
   =================================== */
.video-section {
    background: var(--white);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

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

.video-thumb {
    position: relative;
    display: block;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.video-thumb img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.video-thumb:hover img {
    transform: scale(1.05);
}

.play-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.video-thumb:hover .play-overlay {
    opacity: 1;
}

.play-overlay svg {
    width: 60px;
    height: 60px;
    color: var(--white);
}

.video-card h3 {
    font-size: 1.25rem;
    font-weight: var(--font-regular);
    color: var(--text-dark);
}

/* ===================================
   Services Section
   =================================== */
.services-section {
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

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

.service-image {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
    border: 1px solid var(--gray-300);
}

.service-image img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.service-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(94, 91, 224, 0.9), rgba(94, 91, 224, 0.7));
    color: var(--white);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card {
    transition: transform var(--transition-base);
}

.service-card:hover .service-overlay {
    opacity: 1;
}

.service-card:hover {
    transform: scale(1.05);
}

.service-overlay h4 {
    font-size: 1.25rem;
    font-weight: var(--font-medium);
    margin-bottom: var(--spacing-sm);
}

.service-overlay p {
    font-size: 0.95rem;
    line-height: 1.5;
}

.service-card h3 {
    font-size: 1.125rem;
    font-weight: var(--font-regular);
    color: var(--text-dark);
}

/* ===================================
   Benefits Section
   =================================== */
.benefits-section {
    background: url('../images/contents/back-benefits.jpg') center / cover no-repeat;
    position: relative;
}

.benefits-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
}

.benefits-section .container {
    position: relative;
    z-index: 1;
}

/* Tab Menu */
.tab-menu {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.tab-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1.125rem;
    font-weight: var(--font-regular);
    color: var(--text-base);
    background: var(--white);
    border: 1px solid var(--white);
    transition: all var(--transition-fast);
}

.tab-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
    font-weight: var(--font-medium);
}

.tab-btn:hover:not(.active) {
    border-color: var(--primary);
}

/* Tab Content */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.benefits-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
}

.benefit-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 180px;
}

.benefit-icon {
    width: 160px;
    height: 160px;
    border-radius: var(--radius-full);
    border: 4px solid var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.1);
}

.benefit-icon img {
    width: 70px;
    height: auto;
}

.benefit-card p {
    font-size: 1.125rem;
    color: var(--white);
    line-height: 1.5;
}

/* ===================================
   Contact Section
   =================================== */
.contact-section {
    background: url('../images/contents/back-contactsus.jpg') center / cover no-repeat;
    position: relative;
}

.contact-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
}

.contact-section .container {
    position: relative;
    z-index: 1;
}

.contact-form {
    max-width: 800px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-md);
}

.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.radio-label,
.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--white);
    cursor: pointer;
}

.radio-label input,
.checkbox-label input {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--white);
    border-radius: var(--radius-full);
    cursor: pointer;
    position: relative;
}

.checkbox-label input {
    border-radius: var(--radius-sm);
}

.radio-label input:checked,
.checkbox-label input:checked {
    background: var(--primary);
    border-color: var(--primary);
}

.radio-label input:checked::after,
.checkbox-label input:checked::after {
    content: '';
    position: absolute;
    inset: 3px;
    background: var(--white);
    border-radius: var(--radius-full);
}

.checkbox-label input:checked::after {
    inset: 4px;
    border-radius: 1px;
}

input[type="text"],
input[type="tel"],
input[type="email"],
textarea,
select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    border: none;
    border-radius: 0;
    background: var(--white);
    transition: box-shadow var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--primary);
}

textarea {
    resize: vertical;
    min-height: 150px;
}

.email-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.email-group input {
    flex: 1;
    min-width: 100px;
}

.email-group span {
    color: var(--white);
}

.email-group select {
    width: 150px;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    justify-content: center;
}

.privacy-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-dark);
    background: var(--white);
    border-radius: var(--radius-sm);
}

.form-submit {
    text-align: center;
    margin-top: var(--spacing-lg);
}

.submit-btn {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: 1.125rem;
    font-weight: var(--font-medium);
    color: var(--white);
    background: var(--primary);
    border-radius: 0;
    transition: background var(--transition-fast);
}

.submit-btn:hover {
    background: var(--primary-dark);
}

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Spinner */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 0.8s linear infinite;
    margin-left: var(--spacing-xs);
    vertical-align: middle;
}

.d-none {
    display: none !important;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Thank You Message */
.thankyou-message {
    text-align: center;
    padding: var(--spacing-2xl);
}

.thankyou-content {
    background: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-md);
    max-width: 500px;
    margin: 0 auto;
}

.thankyou-content svg {
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.thankyou-content h3 {
    font-size: 1.5rem;
    font-weight: var(--font-medium);
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.thankyou-content p {
    font-size: 1rem;
    color: var(--text-base);
}

/* ===================================
   Download Section
   =================================== */
.download-section {
    background: url('../images/contents/back-download.jpg') center / cover no-repeat;
    overflow: hidden;
}

.download-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.download-info h3 {
    font-size: 1.25rem;
    font-weight: var(--font-medium);
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
}

.store-buttons {
    display: flex;
    gap: var(--spacing-md);
}

.store-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--white);
    border-radius: var(--radius-md);
    transition: transform var(--transition-fast);
}

.store-btn:hover {
    transform: translateY(-5px);
}

.store-btn > img {
    height: 50px;
    width: auto;
}

.qr-code {
    width: 120px;
    height: 120px;
}

.qr-code img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.download-image {
    flex: 1;
    text-align: right;
}

.download-image img {
    max-width: 500px;
    margin-left: auto;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--white);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--gray-300);
}

.footer-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.footer-link {
    font-size: 0.875rem;
    font-weight: var(--font-regular);
    color: var(--text-dark);
    transition: color var(--transition-fast);
}

.footer-link:first-child {
    color: var(--primary);
}

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

.footer-address {
    font-style: normal;
    font-size: 0.875rem;
    color: var(--text-base);
    margin-bottom: var(--spacing-md);
}

.footer-address p {
    margin-bottom: var(--spacing-xs);
}

.footer-address span {
    margin-right: var(--spacing-md);
}

.copyright {
    font-size: 0.875rem;
    color: var(--text-light);
}

.copyright strong {
    color: var(--text-dark);
    font-weight: var(--font-medium);
    text-transform: capitalize;
}

/* ===================================
   Back to Top
   =================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    border: 1px solid var(--primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 100;
}

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

.back-to-top:hover {
    background: var(--primary-dark);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
    color: var(--white);
}

/* ===================================
   Modal
   =================================== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--primary);
    color: var(--white);
}

.modal-header h3 {
    font-size: 1.125rem;
    font-weight: var(--font-medium);
}

.modal-close {
    font-size: 2rem;
    line-height: 1;
    color: var(--white);
}

.modal-body {
    padding: var(--spacing-lg);
    max-height: 60vh;
    overflow-y: auto;
}

.modal-body h4 {
    font-size: 1rem;
    font-weight: var(--font-medium);
    color: var(--primary);
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.modal-body p {
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

/* Video Modal */
.video-modal-content {
    max-width: 900px;
    width: 95%;
}

.video-modal-body {
    padding: 0;
    background: var(--black);
}

.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* AOS-like animations */
[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="fade-right"] {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-right"].aos-animate {
    opacity: 1;
    transform: translateX(0);
}

[data-aos="fade-left"] {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-left"].aos-animate {
    opacity: 1;
    transform: translateX(0);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .nav {
        display: none;
    }

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

    .slide-phone {
        width: 250px;
        bottom: -150px;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .download-content {
        flex-direction: column;
        text-align: center;
    }

    .download-info h3 {
        text-align: center;
    }

    .store-buttons {
        justify-content: center;
    }

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

    .download-image img {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: var(--header-height-mobile);
    }

    .section {
        padding: var(--spacing-2xl) 0;
    }

    .header-inner {
        padding: 0 var(--spacing-sm);
    }

    .logo {
        width: 120px;
        height: 32px;
    }

    .slide-content {
        padding: 0 var(--spacing-sm);
    }

    .slide-phone {
        width: 200px;
        bottom: -100px;
    }

    .slider-controls {
        bottom: 60px;
        padding: 0 var(--spacing-sm);
    }

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

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

    .benefit-card {
        width: 140px;
    }

    .benefit-icon {
        width: 120px;
        height: 120px;
    }

    .benefit-icon img {
        width: 50px;
    }

    .benefit-card p {
        font-size: 0.95rem;
    }

    .tab-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 1rem;
    }

    .email-group {
        flex-direction: column;
        align-items: stretch;
    }

    .email-group input,
    .email-group select {
        width: 100%;
    }

    .email-group span {
        text-align: center;
    }

    .footer-nav {
        justify-content: center;
    }

    .footer-address span {
        display: block;
        margin-right: 0;
    }
}

@media (max-width: 480px) {
    .slide[data-slide="1"] .slide-bg {
        background-image: url('../images/contents/slider-m-1.jpg');
    }

    .slide[data-slide="2"] .slide-bg {
        background-image: url('../images/contents/slider-m-2.jpg');
    }

    .slide[data-slide="3"] .slide-bg {
        background-image: url('../images/contents/slider-m-3.jpg');
    }

    .radio-group {
        flex-direction: column;
        align-items: center;
    }

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

    .qr-code {
        width: 100px;
        height: 100px;
    }
}