:root {
    --color-cream: #FDF8F3;
    --color-warm-white: #FEFCFA;
    --color-sage: #A8B5A0;
    --color-sage-light: #D4DDD0;
    --color-sage-dark: #7A8C72;
    --color-terracotta: #C4937A;
    --color-terracotta-light: #E8D4C8;
    --color-charcoal: #2D3436;
    --color-gray: #636E72;
    --color-light-gray: #B2BEC3;
    --font-serif: 'Noto Serif KR', Georgia, serif;
    --font-sans: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-cream);
    color: var(--color-charcoal);
    line-height: 1.7;
    overflow-x: hidden;
}

/* Decorative Background Elements */
.bg-decoration {
    position: fixed;
    pointer-events: none;
    z-index: 0;
}

.bg-circle-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(168, 181, 160, 0.15) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    border-radius: 50%;
}

.bg-circle-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(196, 147, 122, 0.12) 0%, transparent 70%);
    bottom: 20%;
    left: -100px;
    border-radius: 50%;
}

.bg-circle-3 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(168, 181, 160, 0.1) 0%, transparent 70%);
    bottom: -150px;
    right: 10%;
    border-radius: 50%;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(253, 248, 243, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}

nav.scrolled {
    padding: 15px 40px;
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.06);
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-charcoal);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-sage) 0%, var(--color-sage-dark) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.nav-links {
    display: flex;
    gap: 40px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--color-gray);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-sage);
    transition: width 0.3s ease;
}

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

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    background: var(--color-charcoal);
    color: white;
    padding: 12px 28px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.nav-cta:hover {
    background: var(--color-sage-dark);
    transform: translateY(-2px);
}

/* Main Content */
.main-content {
    max-width: 900px;
    margin: 120px auto 80px;
    padding: 0 40px;
    position: relative;
    z-index: 1;
}

.page-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 2px solid var(--color-sage-light);
}

.page-title {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-charcoal);
    margin-bottom: 16px;
}

.page-subtitle {
    font-size: 1.2rem;
    color: var(--color-gray);
    line-height: 1.8;
}

.last-updated {
    font-size: 0.95rem;
    color: var(--color-gray);
}

/* Content Wrapper */
.content-wrapper {
    background: white;
    border-radius: 20px;
    padding: 60px;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

/* Sections */
.intro {
    background: var(--color-sage-light);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 40px;
}

.intro-text {
    font-size: 1.05rem;
    color: var(--color-charcoal);
    line-height: 1.9;
}

.section {
    margin-bottom: 48px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-charcoal);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-sage-light);
}

.section-content {
    font-size: 1.05rem;
    color: var(--color-gray);
    line-height: 1.9;
}

.section-content p {
    margin-bottom: 12px;
}

.bold {
    font-weight: 600;
    color: var(--color-charcoal);
}

.highlight-box {
    background: var(--color-warm-white);
    border-left: 4px solid var(--color-sage-dark);
    padding: 20px;
    margin: 16px 0;
    border-radius: 8px;
}

.footer-note {
    margin-top: 60px;
    padding-top: 30px;
    border-top: 2px solid var(--color-sage-light);
    text-align: center;
    font-size: 1rem;
    color: var(--color-gray);
}

/* Footer */
footer {
    padding: 80px 40px 40px;
    background: var(--color-warm-white);
    position: relative;
    z-index: 1;
    margin-top: 100px;
}

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

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 0.95rem;
    color: var(--color-gray);
    line-height: 1.7;
}

.footer-links h4 {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-charcoal);
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    font-size: 0.9rem;
    color: var(--color-gray);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 40px;
}

.footer-copyright {
    font-size: 0.85rem;
    color: var(--color-gray);
}

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

.footer-social a {
    width: 44px;
    height: 44px;
    background: var(--color-cream);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--color-sage-light);
    transform: translateY(-3px);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--color-charcoal);
    transition: all 0.3s ease;
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        padding: 16px 24px;
    }

    .nav-links, .nav-cta {
        display: none;
    }

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

    .main-content {
        margin: 100px auto 60px;
        padding: 0 24px;
    }

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

    .content-wrapper {
        padding: 40px 28px;
    }

    .section-title {
        font-size: 1.2rem;
    }

    .section-content {
        font-size: 1rem;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 24px;
    }
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}