*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; line-height: 1.7; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* Bilingual */
.kr { color: #888; font-size: 0.85em; font-weight: 400; }
h1 .kr, h2 .kr, h3 .kr { display: block; }
p .kr { margin-left: 4px; }
.section-title .kr { font-size: 0.55em; font-weight: 500; margin-top: 4px; }
.section-subtitle .kr { display: block; font-size: 0.9em; margin-top: 2px; }
.hero h1 .kr { color: rgba(255,255,255,0.7); font-size: 0.5em; }
.hero p .kr { display: block; color: rgba(255,255,255,0.65); font-size: 0.9em; margin-top: 6px; }

/* Header */
.header { background: #fff; position: sticky; top: 0; z-index: 100; box-shadow: 0 1px 8px rgba(0,0,0,0.08); }
.header-inner { max-width: 1100px; margin: 0 auto; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo img { height: 46px; }
.logo-text { font-size: 1.1rem; font-weight: 800; color: #1565c0; }
.logo-text small { display: block; font-size: 0.7rem; font-weight: 500; color: #666; letter-spacing: 0.5px; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { padding: 8px 14px; border-radius: 6px; font-size: 0.88rem; font-weight: 600; color: #444; transition: all 0.2s; }
.nav a:hover, .nav a.active { background: #e3f2fd; color: #1565c0; }
/* Nav Korean text */
.nav .kr { font-size: 0.75em; color: #999; margin-left: 2px; }
.menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: #333; }

/* Hero */
.hero { background: linear-gradient(135deg, #1565c0 0%, #0d47a1 100%); color: #fff; padding: 80px 20px; text-align: center; }
.hero h1 { font-size: 2.5rem; font-weight: 800; margin-bottom: 12px; }
.hero p { font-size: 1.1rem; opacity: 0.92; max-width: 650px; margin: 0 auto; }
.hero-info { display: flex; justify-content: center; gap: 30px; margin-top: 32px; flex-wrap: wrap; }
.hero-info a { display: flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.12); padding: 12px 22px; border-radius: 8px; font-weight: 600; transition: background 0.2s; }
.hero-info a:hover { background: rgba(255,255,255,0.25); }

/* Section */
.section { padding: 70px 20px; }
.section-alt { background: #f5f8fc; }
.section-title { text-align: center; font-size: 1.9rem; font-weight: 800; color: #1565c0; margin-bottom: 8px; }
.section-subtitle { text-align: center; color: #666; margin-bottom: 45px; }

/* Hours Grid */
.hours-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; max-width: 800px; margin: 0 auto; }
.hours-card { background: #fff; border-radius: 12px; padding: 30px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); text-align: center; }
.hours-card h3 { color: #1565c0; font-size: 1.2rem; margin-bottom: 6px; }
.hours-card h3 .kr { font-size: 0.8em; }
.hours-phone { margin-bottom: 16px; }
.hours-phone a { color: #1565c0; font-weight: 700; font-size: 1.05rem; }
.hours-phone a:hover { text-decoration: underline; }
.hours-card .hours-table { width: 100%; max-width: none; }

/* Doctor */
.doctor-card { display: flex; gap: 40px; align-items: center; max-width: 800px; margin: 0 auto; background: #fff; border-radius: 14px; padding: 40px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.doctor-card img { width: 200px; border-radius: 12px; }
.doctor-card h3 { font-size: 1.4rem; color: #1565c0; margin-bottom: 4px; }
.doctor-card .subtitle { color: #888; font-size: 0.9rem; margin-bottom: 14px; }
.credentials { list-style: none; }
.credentials li { padding: 4px 0; font-size: 0.92rem; color: #555; }
.credentials li::before { content: "✓ "; color: #1565c0; font-weight: 700; }

/* Services Grid */
.services-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 18px; }
.service-card { background: #fff; border-radius: 12px; padding: 28px 22px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); transition: transform 0.2s, box-shadow 0.2s; text-align: center; border-top: 3px solid #1565c0; }
.service-card:hover { transform: translateY(-4px); box-shadow: 0 6px 20px rgba(0,0,0,0.1); }
.service-icon { font-size: 2.2rem; margin-bottom: 12px; }
.service-card h3 { font-size: 1rem; color: #1565c0; margin-bottom: 4px; }
.service-card .kr-name { font-size: 0.8rem; color: #999; margin-bottom: 8px; }
.service-card p { font-size: 0.85rem; color: #666; line-height: 1.5; }

/* Locations */
.locations-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.location-card { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.location-card .map { height: 220px; }
.location-card .map iframe { width: 100%; height: 100%; border: 0; }
.location-info { padding: 28px; }
.location-info h3 { color: #1565c0; font-size: 1.2rem; margin-bottom: 16px; }
.loc-item { display: flex; gap: 10px; margin-bottom: 12px; font-size: 0.92rem; }
.loc-item .icon { min-width: 20px; text-align: center; color: #1565c0; }

/* Hours */
.hours-table { width: 100%; max-width: 400px; margin: 0 auto; border-collapse: collapse; }
.hours-table td { padding: 8px 16px; font-size: 0.92rem; border-bottom: 1px solid #eee; }
.hours-table td:first-child { font-weight: 600; color: #333; }
.hours-table td:last-child { text-align: right; color: #555; }
.hours-table .closed td { color: #e53935; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; max-width: 800px; margin: 0 auto; }
.contact-card { background: #fff; border-radius: 12px; padding: 30px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); text-align: center; }
.contact-card .icon { font-size: 2rem; margin-bottom: 10px; }
.contact-card h3 { color: #1565c0; font-size: 1rem; margin-bottom: 8px; }
.contact-card p { font-size: 0.95rem; color: #555; }
.contact-card a { color: #1565c0; font-weight: 600; }
.contact-card a:hover { text-decoration: underline; }

/* Footer */
.footer { background: #1565c0; color: rgba(255,255,255,0.9); text-align: center; padding: 28px 20px; font-size: 0.88rem; }
.footer a { color: #bbdefb; }

/* Responsive */
@media (max-width: 768px) {
    .nav { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: #fff; padding: 12px; box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
    .nav.open { display: flex; }
    .menu-toggle { display: block; }
    .hero h1 { font-size: 1.8rem; }
    .hero-info { flex-direction: column; align-items: center; }
    .doctor-card { flex-direction: column; text-align: center; }
    .doctor-card img { margin: 0 auto; }
    .hours-grid { grid-template-columns: 1fr; }
    .locations-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
}