:root {
    --primary-gradient: linear-gradient(135deg, #4ade80 0%, #3b82f6 100%);
    --secondary-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --bg-color: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --white: #ffffff;
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    --container-width: 1100px;
}

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

body {
    font-family: 'Outfit', 'Noto Sans KR', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.header {
    padding: 2.5rem 0;
    background-color: transparent;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #3b82f6;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    z-index: 1000;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-symbol {
    height: 48px;
    width: auto;
}

.logo-text {
    height: 24px;
    width: auto;
}

/* Hero Section */
.hero {
    padding: 12rem 0 8rem;
    background-color: #ffffff;
    overflow: hidden;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    text-align: left;
}

.hero-text {
    flex: 1;
}

.hero-image-container {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
}

.hero-image {
    max-width: 100%;
    height: auto;
    border-radius: 2rem;
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.1), 0 18px 36px -18px rgba(0, 0, 0, 0.05);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }

    100% {
        transform: translateY(0px);
    }
}

.badge {
    display: inline-block;
    background-color: rgba(59, 130, 246, 0.05);
    color: #3b82f6;
    font-weight: 700;
    font-size: 0.75rem;
    padding: 0.5rem 1.25rem;
    border-radius: 9999px;
    letter-spacing: 0.1em;
    margin-bottom: 2rem;
    border: 1px solid rgba(59, 130, 246, 0.1);
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: #0f172a;
    letter-spacing: -0.04em;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0;
}

/* Features Section */
.features {
    padding: 4rem 0 10rem;
}

.features-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background-color: var(--white);
    padding: 3rem 2rem;
    border-radius: 2rem;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
    text-align: left;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
}

.card-icon.blue {
    background-color: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.card-icon.green {
    background-color: rgba(74, 222, 128, 0.1);
    color: #4ade80;
}

.card-icon.pink {
    background-color: rgba(244, 114, 182, 0.1);
    color: #f472b6;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #0f172a;
}

.card-description {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

/* Product Gallery Section */
.product-gallery {
    padding: 8rem 0;
    background-color: #ffffff;
    position: relative;
    overflow: hidden;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.1rem;
    color: #0f172a;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.image-wrapper {
    margin-top: 4rem;
    display: flex;
    justify-content: center;
}

.section-image {
    max-width: 40%;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.05));
    border-radius: 1rem;
}

/* Innovation Section */
.innovation {
    padding: 8rem 0;
    background-color: #ffffff;
    position: relative;
    overflow: hidden;
}

.innovation-content {
    display: flex;
    justify-content: center;
    text-align: center;
    gap: 6rem;
}

.innovation-text {
    max-width: 800px;
}

.innovation-description {
    margin-top: 2rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

.innovation-images {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
}

.innovation-sketch {
    max-width: 80%;
    height: auto;
    filter: grayscale(1) opacity(0.6);
    transition: filter 0.3s ease;
}

.innovation-sketch:hover {
    filter: grayscale(0) opacity(1);
}

/* Footer Refinement */
.footer {
    padding: 6rem 0 4rem;
    background-color: #f1f5f9;
    border-top: none;
    color: var(--text-secondary);
}

.footer-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 4rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.footer-logo-symbol {
    height: 40px;
    width: auto;
}

.footer-logo-text {
    height: 20px;
    width: auto;
    filter: brightness(0.9);
}

.footer-details p {
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
    font-size: 0.875rem;
}

/* Animations */
.fade-in {
    opacity: 1;
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.js-ready .fade-in {
    opacity: 0;
    transform: translateY(20px);
}

.js-ready .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {
    .menu-toggle {
        display: block;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--white);
        display: flex;
        flex-direction: column;
        justify-content: center;
        transition: right 1.2s cubic-bezier(0.19, 1, 0.22, 1);
        z-index: 999;
    }

    .nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 2.5rem;
    }

    .nav-link {
        font-size: 1.75rem;
        font-weight: 600;
    }

    .hero-content,
    .innovation-content {
        flex-direction: column;
        text-align: center;
        gap: 3rem;
    }

    .hero-subtitle,
    .innovation-description {
        margin: 0 auto;
    }

    .features-container,
    .gallery-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .container {
        padding: 0 1rem;
    }

    .gallery-container,
    .innovation-container {
        padding-top: 6rem !important;
    }

    .hero-title {
        font-size: 3rem;
    }

    .innovation-images {
        width: 100%;
    }

    .innovation-sketch {
        max-width: 100%;
    }

    .section-image {
        max-width: 100%;
    }
}