@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&family=Noto+Sans+KR:wght@300;400;700&display=swap');

:root {
    --primary-color: #0d4b2c;
    --primary-light: #166d41;
    --primary-dark: #08341e;
    --accent-color: #ed1d24;
    --text-main: #222222;
    --text-muted: #666666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --transition: all 0.3s ease;
    --container-width: 1200px;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 40px;
}

nav ul {
    display: flex;
    gap: 30px;
}

nav ul li a {
    font-weight: 600;
    font-size: 1rem;
}

nav ul li a:hover {
    color: var(--primary-color);
}

.auth-buttons {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    border: none;
}

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

/* Hero Section */
.hero {
    position: relative;
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: var(--white);
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: url('/data/main/hero_bg.jpg') center/cover no-repeat;
    opacity: 0.2;
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    gap: 50px;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 25px;
}

.hero-content p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 40px;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

/* Carrier Section */
.carriers {
    padding: 60px 0;
    background: var(--bg-light);
    text-align: center;
}

.carriers h2 {
    margin-bottom: 40px;
    font-size: 2rem;
}

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

.carrier-card {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.carrier-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.carrier-card img {
    height: 50px;
    margin-bottom: 20px;
}

/* Features */
.features {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.feature-item {
    text-align: center;
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: rgba(13, 75, 44, 0.1);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 25px;
}

.feature-item h3 {
    margin-bottom: 15px;
}

/* Products Section */
.products {
    padding: 100px 0;
    background: var(--bg-light);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.product-img {
    height: 300px;
    background: #eee;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-info {
    padding: 25px;
}

.product-tag {
    display: inline-block;
    padding: 5px 12px;
    background: var(--primary-color);
    color: var(--white);
    font-size: 0.75rem;
    border-radius: 20px;
    margin-bottom: 10px;
}

.product-name {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.product-price {
    font-size: 1.5rem;
    color: var(--accent-color);
    font-weight: 700;
}

/* Footer */
footer {
    background: #222;
    color: #eee;
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 50px;
    margin-bottom: 60px;
}

.footer-info h3 {
    color: var(--white);
    margin-bottom: 20px;
}

.footer-links h4 {
    color: var(--white);
    margin-bottom: 25px;
}

.footer-links ul li {
    margin-bottom: 12px;
}

.copyright {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid #444;
    font-size: 0.9rem;
    color: #888;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-btns {
        justify-content: center;
    }
    .feature-grid, .carrier-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .feature-grid, .carrier-grid {
        grid-template-columns: 1fr;
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
    header .container {
        height: auto;
        padding: 20px;
        flex-direction: column;
        gap: 20px;
    }
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
}