* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Noto Sans KR', sans-serif; background: #f5f9fc; }

#login-screen { position: fixed; inset: 0; background: linear-gradient(135deg, #1B9BD7, #0D5C8A); display: flex; align-items: center; justify-content: center; z-index: 9999; }
.login-box { background: white; padding: 40px; border-radius: 20px; width: 90%; max-width: 400px; }
.login-box h1 { font-size: 32px; color: #1B9BD7; margin-bottom: 30px; text-align: center; }
.remember-login { margin: 15px 0; display: flex; align-items: center; gap: 8px; }
.remember-login input { width: 18px; height: 18px; cursor: pointer; }
.remember-login label { font-size: 14px; color: #666; cursor: pointer; }

header { background: white; border-bottom: 3px solid #1B9BD7; position: sticky; top: 0; z-index: 100; display: none; }
.header-inner { max-width: 1400px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; padding: 0 30px; }
.logo { font-size: 28px; font-weight: 900; color: #1B9BD7; padding: 20px 0; }
.nav { display: flex; gap: 5px; margin-left: auto; }
.nav-item { padding: 28px 20px; cursor: pointer; font-weight: 700; color: #666; transition: 0.2s; border-bottom: 3px solid transparent; white-space: nowrap; }
.nav-item:hover { background: #e3f2fd; color: #1B9BD7; }
.nav-item.active { color: #1B9BD7; border-bottom-color: #1B9BD7; background: #e3f2fd; }

.mobile-header { background: white; border-bottom: 2px solid #1B9BD7; position: sticky; top: 0; z-index: 100; }
.mobile-header-top { display: flex; align-items: center; padding: 0 12px; }
.mobile-logo { font-size: 22px; font-weight: 900; color: #1B9BD7; padding: 14px 8px; white-space: nowrap; flex-shrink: 0; }
.hamburger-btn { display: none; background: none; border: 2px solid #1B9BD7; border-radius: 6px; padding: 6px 8px; cursor: pointer; font-size: 20px; color: #1B9BD7; margin-left: auto; }
.hamburger-btn.open { background: #e3f2fd; }
.mobile-nav { display: flex; flex: 1; overflow-x: auto; -webkit-overflow-scrolling: touch; align-items: center; justify-content: flex-end; }
.mobile-dropdown { display: none; }
.mobile-nav .tab-btn { padding: 16px 14px; white-space: nowrap; font-size: 15px; font-weight: 700; color: #666; cursor: pointer; border-bottom: 3px solid transparent; flex-shrink: 0; transition: 0.2s; }
.mobile-nav .tab-btn.active { color: #1B9BD7; border-bottom-color: #1B9BD7; background: #e3f2fd; }
.mobile-nav .tab-btn:hover { color: #1B9BD7; }
.logout-btn { background: #f44336; color: white; padding: 10px 16px; border-radius: 8px; font-weight: 700; font-size: 14px; border: none; cursor: pointer; white-space: nowrap; flex-shrink: 0; margin-left: 6px; }

main { padding: 20px; max-width: 1400px; margin: 0 auto; }
.page-header { margin-bottom: 20px; }
.page-header h2 { font-size: 24px; color: #0D5C8A; margin-bottom: 15px; }

.tab-content { display: none; }
.tab-content.active { display: block; }

.pc-only { display: block !important; }
.pc-only.map-hidden { display: none !important; }
.pc-only.map-visible { display: block !important; }
.mobile-only { display: none !important; }