:root {
    --text-main: #111827;
    --text-muted: #6B7280;
    --bg-main: #FFFFFF;
    --primary: #F97316;
    --primary-light: #FFEDD5;
}

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

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-main);
    background-color: #FAFAFA;
    background-image:
        radial-gradient(#d1d5db 1px, transparent 1px);
    background-size: 24px 24px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

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

/* Navbar */
.navbar {
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(250, 250, 250, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.05em;
}

.logo-icon {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-muted);
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--text-main);
}

/* Base button styles */
.btn {
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #FF8008 0%, #FFA03A 100%);
    color: white;
    box-shadow: 0 8px 20px rgba(255, 128, 8, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(255, 128, 8, 0.35);
}

.btn-outline {
    border: 1px solid #E5E7EB;
    color: var(--text-main);
    background: white;
}

.btn-outline:hover {
    border-color: #D1D5DB;
    background: #F9FAFB;
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    padding: 100px 0 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 80vh;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 5rem;
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 24px;
    letter-spacing: -0.04em;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 450px;
    line-height: 1.7;
}

/* 3D Visual in Hero */
.hero-visual {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-visual img {
    max-width: 100%;
    border-radius: 20px;
    filter: drop-shadow(0 30px 40px rgba(0, 0, 0, 0.08));
    animation: float 6s ease-in-out infinite;
    mix-blend-mode: multiply;
}

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

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

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

/* Services / Features */
.section-title {
    text-align: center;
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 60px;
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 100px;
}

.feature-card {
    background: white;
    border-radius: 24px;
    padding: 40px 30px;
    text-align: center;
    border: 1px solid #F3F4F6;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02), 0 10px 15px rgba(0, 0, 0, 0.01);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px rgba(0, 0, 0, 0.03);
}

.feature-img-wrap {
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-img-wrap img {
    max-width: 100%;
    max-height: 100%;
    mix-blend-mode: multiply;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Secondary Section Grid */
.bento-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 100px;
    align-items: center;
}

.bento-item h4 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.bento-item p {
    color: var(--text-muted);
    font-size: 1rem;
}

.bento-visual img {
    width: 100%;
    mix-blend-mode: multiply;
    border-radius: 30px;
}

/* Footer layout */
.footer {
    border-top: 1px solid #F3F4F6;
    padding: 100px 0 60px;
    background: #FAFAFA;
}

.footer-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 80px;
}

.footer-brand h2 {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
}

.footer-info {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.footer-links h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-links a {
    display: block;
    color: var(--text-muted);
    margin-bottom: 12px;
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--text-main);
}

.footer-bottom {
    border-top: 1px solid #F3F4F6;
    margin-top: 50px;
    padding-top: 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Page Header */
.page-header {
    padding: 80px 0 40px;
    text-align: center;
}

.page-header h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
}

.page-header p {
    font-size: 1.2rem;
    color: var(--text-muted);
}

/* Services Page Components */
.services-wrapper {
    display: flex;
    flex-direction: column;
    gap: 80px;
    margin-bottom: 100px;
}

.service-card {
    background: white;
    padding: 60px;
    border-radius: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
    display: flex;
    gap: 60px;
    align-items: center;
    border: 1px solid #F3F4F6;
}

.service-card.reverse {
    flex-direction: row-reverse;
}

.service-content {
    flex: 1;
}

.service-visual {
    flex: 1;
    text-align: center;
}

.service-visual img {
    max-width: 90%;
}

.service-tag {
    font-weight: 700;
    margin-bottom: 12px;
    font-size: 1.1rem;
    text-transform: uppercase;
}

.service-title {
    font-size: 2.8rem;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    line-height: 1.2;
}

.service-desc {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 24px;
}

.service-list {
    list-style: none;
    padding: 0;
    line-height: 2.2;
    color: var(--text-muted);
}

.service-list li strong {
    color: var(--text-main);
    font-weight: 600;
}

/* About Page Components */
.about-wrapper {
    max-width: 800px;
    margin: 0 auto 100px;
    background: white;
    padding: 50px;
    border-radius: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
    border: 1px solid #F3F4F6;
}

.about-title {
    font-size: 2.5rem;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.about-desc {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 24px;
}

.about-info-box {
    background: var(--bg-main);
    padding: 30px;
    border-radius: 16px;
    border: 1px solid #F3F4F6;
    margin-top: 40px;
}

.about-list {
    list-style: none;
    padding: 0;
    line-height: 2.4;
    font-size: 1.05rem;
}

.about-label {
    display: inline-block;
    width: 160px;
}

/* Privacy Page Components */
.privacy-wrapper {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 50px;
    border-radius: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
    border: 1px solid #F3F4F6;
}

.privacy-title {
    margin-bottom: 16px;
    font-size: 1.5rem;
    color: var(--text-main);
}

.privacy-title:not(:first-child) {
    color: var(--primary-dark);
}

.privacy-text {
    margin-bottom: 40px;
    line-height: 1.8;
    color: var(--text-muted);
}

.privacy-box {
    background: #F8FAFC;
    padding: 24px;
    border-radius: 8px;
    margin-bottom: 40px;
}

.privacy-box-text {
    margin-bottom: 16px;
    line-height: 1.8;
    color: var(--text-main);
}

.privacy-list {
    margin-left: 20px;
    line-height: 1.8;
    color: var(--text-muted);
}

/* Mobile Menu Header base */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-main);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
}

/* Responsive Design for Mobile/Tablet */
@media (max-width: 900px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .service-card,
    .service-card.reverse {
        flex-direction: column;
        padding: 40px 30px;
        gap: 40px;
    }
}

@media (max-width: 600px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 60px;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .hero-content {
        margin-bottom: 40px;
    }

    .hero-visual img {
        max-width: 100%;
        transform: none;
    }

    /* Mobile Menu styles */
    .mobile-menu-btn {
        display: block;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 30px;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.05);
        border-bottom: 1px solid #eee;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu .nav-links {
        flex-direction: column;
        gap: 20px;
        margin-bottom: 24px;
        align-items: center;
    }

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

    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .logo {
        font-size: 1.2rem;
    }

    .service-title {
        font-size: 2.2rem;
    }

    /* About page responsive */
    .about-wrapper {
        padding: 30px 20px;
    }

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

    .about-info-box {
        padding: 20px;
    }

    .about-label {
        display: block;
        width: 100%;
        margin-bottom: 4px;
        color: var(--text-main);
    }

    .about-list li {
        margin-bottom: 16px;
    }

    /* Privacy page responsive */
    .privacy-wrapper {
        padding: 30px 20px;
    }

    .privacy-title {
        font-size: 1.3rem;
    }

    .privacy-box {
        padding: 16px;
    }
}