/* Wanbyukhan Holdings - GitHub Pages Static Site */

:root {
    --bg: #FAF8F5;
    --bg-white: #FFFFFF;
    --text: #1A1A1A;
    --text-muted: #595959;
    --text-body: #4A4A4A;
    --accent: #8DA399;
    --accent-hover: #7A8F85;
    --border: #E6E4DE;
    --border-light: #DddBd5;
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--font-heading); font-weight: 500; }

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

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

@media (min-width: 768px) {
    .container { padding: 0 3rem; }
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(250, 248, 245, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

@media (min-width: 768px) {
    .nav-container { padding: 1rem 3rem; }
}

.nav-logo {
    font-family: var(--font-body);
    font-weight: 500;
    color: var(--text);
}

.nav-link {
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: color 0.2s;
}

.nav-link:hover { color: var(--accent); }

/* Hero */
.hero { padding-top: 3.5rem; }

.hero-container { padding-top: 1rem; padding-bottom: 1rem; }

@media (min-width: 768px) {
    .hero-container { padding-top: 1.5rem; padding-bottom: 1.5rem; }
}

.hero-grid {
    display: grid;
    gap: 2rem;
    align-items: center;
}

@media (min-width: 768px) {
    .hero-grid { grid-template-columns: 1fr 1fr; gap: 3rem; }
}

.hero-content { order: 2; }

@media (min-width: 768px) {
    .hero-content { order: 1; }
}

.hero-title {
    font-size: 3rem;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
}

@media (min-width: 768px) {
    .hero-title { font-size: 4.5rem; }
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
    margin-bottom: 0.5rem;
}

.hero-tagline {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-style: italic;
    color: var(--text-body);
    margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
    .hero-tagline { font-size: 1.5rem; }
}

.hero-description {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 1.75rem;
    max-width: 30rem;
}

.hero-image-wrapper {
    order: 1;
    aspect-ratio: 4/5;
    overflow: hidden;
    border-radius: 2px;
}

@media (min-width: 768px) {
    .hero-image-wrapper { order: 2; }
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Button */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent);
    color: #fff;
    padding: 0.75rem 2rem;
    border-radius: 2px;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all 0.3s;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(141, 163, 153, 0.3);
}

.btn-primary svg { transition: transform 0.2s; }
.btn-primary:hover svg { transform: translateX(4px); }

/* Divider */
.divider { border-top: 1px solid var(--border); }

/* Labels & Titles */
.label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .section-title { font-size: 3rem; }
}

/* About */
.about { padding: 6rem 0; }

.about-inner {
    max-width: 48rem;
    margin: 0 auto;
    text-align: center;
}

.about-text {
    font-size: 1.125rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.about-text:last-child { margin-bottom: 0; }

/* Focus Areas */
.focus {
    padding: 6rem 0;
    background: var(--bg-white);
}

.focus-header {
    text-align: center;
    margin-bottom: 3rem;
}

.focus-grid {
    display: grid;
    gap: 2rem;
}

@media (min-width: 768px) {
    .focus-grid { grid-template-columns: repeat(3, 1fr); }
}

.focus-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    padding: 2rem;
    border-radius: 2px;
    transition: box-shadow 0.3s;
}

.focus-card:hover {
    box-shadow: 0 4px 20px -2px rgba(26, 26, 26, 0.08);
}

.focus-icon {
    width: 3rem;
    height: 3rem;
    background: var(--bg);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--accent);
}

.focus-card-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.focus-card-text {
    color: var(--text-muted);
    line-height: 1.7;
}

/* Contact */
.contact {
    padding: 6rem 0;
    background: var(--bg);
}

.contact-inner { max-width: 40rem; }

.contact-intro {
    font-size: 1.125rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    flex-shrink: 0;
}

.contact-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.contact-value {
    color: var(--text);
    transition: color 0.2s;
}

.contact-value:hover { color: var(--accent); }

.contact-value-static { color: var(--text); }

/* Footer */
.footer {
    padding: 3rem 0;
    background: var(--bg);
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-inner {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-company {
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.footer-copy {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: color 0.2s;
}

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

.footer-links a.active {
    color: var(--accent);
    font-weight: 500;
}

.footer-sep { color: var(--border); }

/* Legal Pages */
.legal-page {
    padding-top: 5rem;
    padding-bottom: 6rem;
    min-height: 100vh;
}

.legal-header { margin-bottom: 3rem; }

.legal-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .legal-title { font-size: 3rem; }
}

.legal-date {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.legal-content { max-width: 48rem; }

.legal-section { margin-bottom: 2.5rem; }

.legal-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.legal-section p {
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.legal-section ul {
    list-style: disc;
    padding-left: 1.5rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.legal-section li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

.legal-section a {
    color: var(--text);
    transition: color 0.2s;
}

.legal-section a:hover { color: var(--accent); }

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: color 0.2s;
}

.back-link:hover { color: var(--accent); }