*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,sans-serif;color:#172033;background:#fafafa}.header{border-bottom:1px solid #e5e7eb;background:white}nav{display:flex;gap:1.4rem;padding:1rem;max-width:960px;margin:auto}nav a{color:#175ac7;text-decoration:none}nav a:hover{text-decoration:underline}main{max-width:960px;min-height:65vh;margin:auto;padding:2rem 1rem}footer{max-width:960px;margin:auto;padding:2rem 1rem;color:#64748b;border-top:1px solid #e5e7eb}button{cursor:pointer;padding:.65rem 1rem}
/* 관리자 대시보드 전용 스타일 (일반 사이트 레이아웃과 분리) */
.admin-shell{display:flex;min-height:100vh;background:#f5f7fb;color:#17233a}.admin-shell *{box-sizing:border-box}.admin-sidebar{position:sticky;top:0;height:100vh;width:246px;flex:none;background:#111c33;color:#d8e3f4;display:flex;flex-direction:column;z-index:100}.admin-brand{display:flex;align-items:center;gap:12px;padding:28px 22px 35px;color:#fff;text-decoration:none}.admin-brand-icon,.admin-login-logo{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:#427bfc;color:white;font-weight:800;font-size:22px}.admin-brand strong{display:block;letter-spacing:-.3px;font-size:16px}.admin-brand small{display:block;margin-top:3px;font-size:12px;color:#93a6c5}.admin-menu-label{padding:0 22px 12px;font-size:10px;letter-spacing:1.5px;color:#8296ba;font-weight:700}.admin-side-nav{display:flex;flex-direction:column;gap:5px;padding:0 12px}.admin-side-nav a{display:flex;align-items:center;gap:13px;padding:12px 13px;border-radius:10px;font-size:14px;font-weight:500;color:#b8c7de;text-decoration:none}.admin-side-nav a>span{font-size:19px;min-width:20px;text-align:center}.admin-side-nav a:hover{background:#1e3050;color:#fff}.admin-side-nav a.is-active{background:#2b4c8f;color:#fff}.admin-sidebar-bottom{margin-top:auto;padding:22px;display:flex;flex-direction:column;gap:12px;border-top:1px solid #293752;font-size:12px;color:#8296ba}.admin-sidebar-bottom a{color:#c8d5ed;text-decoration:none}.admin-workspace{min-width:0;flex:1}.admin-topbar{height:70px;background:#fff;border-bottom:1px solid #e8edf4;display:flex;align-items:center;justify-content:space-between;padding:0 34px;gap:14px}.admin-topbar-left,.admin-topbar-right{display:flex;align-items:center;gap:14px}.admin-breadcrumb{color:#8692a8;font-size:13px}.admin-breadcrumb b{color:#26344a;font-weight:650}.admin-role{font-size:12px;color:#53637f;background:#f0f4fb;border-radius:30px;padding:7px 12px}.admin-avatar{height:34px;width:34px;border-radius:50%;background:#dce7ff;color:#2853b5;display:grid;place-items:center;font-weight:800;font-size:13px}.admin-menu-button{display:none;background:transparent;border:none;font-size:21px;padding:5px 8px}.admin-main{max-width:1500px;min-height:calc(100vh - 70px);margin:0 auto;padding:34px}.admin-page-heading{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:26px}.admin-page-heading h1{font-size:27px;margin:4px 0 9px;line-height:1.25;letter-spacing:-.7px}.admin-page-heading p:not(.admin-eyebrow){margin:0;font-size:14px;color:#7b8799}.admin-eyebrow{color:#396ce0!important;font-size:11px!important;font-weight:800;letter-spacing:1.6px;margin:0!important}.admin-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-bottom:22px}.admin-stat-card,.admin-panel{background:#fff;border:1px solid #e7ecf4;border-radius:16px;box-shadow:0 4px 15px rgba(30,48,85,.025)}.admin-stat-card{padding:23px}.admin-stat-top{display:flex;align-items:center;justify-content:space-between;font-weight:650;font-size:13px;color:#56647b}.admin-stat-icon{background:#edf3ff;color:#426cce;width:35px;height:35px;border-radius:10px;display:grid;place-items:center;font-size:22px}.admin-stat-value{font-size:35px;font-weight:750;line-height:1.7;letter-spacing:-1px}.admin-stat-card p{font-size:12px;color:#8793a5;margin:0}.admin-dashboard-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:20px;margin-bottom:20px}.admin-panel{padding:25px}.admin-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.admin-panel h2{margin:0;font-size:16px}.admin-panel-head p,.admin-info-panel p{font-size:13px;color:#8692a6;line-height:1.65;margin:7px 0 0}.admin-quick-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px}.admin-quick-actions a{border:1px solid #e9edf4;border-radius:12px;padding:17px;text-decoration:none;display:flex;flex-direction:column;gap:6px;transition:background .15s,border .15s}.admin-quick-actions a:hover{background:#f3f7ff;border-color:#ccdaf8}.admin-quick-actions a span{font-size:24px;color:#4777db}.admin-quick-actions a strong{font-size:13px;color:#25344c}.admin-quick-actions a small{font-size:11px;color:#8792a6}.admin-empty{height:224px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:#7c8aa1;gap:8px;font-size:13px}.admin-empty>span{font-size:27px;color:#a6b4ce}.admin-empty strong{color:#495a74}.admin-empty p{margin:0;font-size:12px}.admin-info-panel{margin-top:20px}.admin-login-page{min-height:100vh;display:grid;place-items:center;background:#f5f7fb;padding:24px}.admin-login-box{width:100%;max-width:430px;border:1px solid #e7ecf4;border-radius:18px;background:white;padding:36px;text-align:center}.admin-login-logo{margin:0 auto}.admin-login-box h1{font-size:24px;margin:24px 0 8px}.admin-login-box>p{font-size:14px;color:#758199}.admin-backdrop{display:none}
@media(max-width:1040px){.admin-dashboard-grid{grid-template-columns:1fr}.admin-sidebar{width:220px}.admin-main{padding:25px}.admin-topbar{padding:0 25px}}
@media(max-width:700px){.admin-sidebar{position:fixed;transform:translateX(-100%);transition:transform .2s;width:260px}.admin-sidebar.is-open{transform:translateX(0)}.admin-backdrop{display:block;position:fixed;inset:0;border:0;padding:0;background:rgba(0,0,0,.35);z-index:90}.admin-menu-button{display:block}.admin-main{padding:20px 15px}.admin-topbar{height:62px;padding:0 16px}.admin-stats{grid-template-columns:1fr;gap:12px}.admin-quick-actions{grid-template-columns:1fr 1fr}.admin-page-heading h1{font-size:22px}.admin-role{display:none}}
@media(max-width:370px){.admin-quick-actions{grid-template-columns:1fr}}
@media print{.admin-sidebar,.admin-topbar,.admin-backdrop{display:none!important}.admin-workspace,.admin-main{padding:0!important;max-width:none!important}}

/* 학교 전용 화면: 일반 Layout과 독립 */
.school-app{min-height:100vh;display:flex;flex-direction:column;background:#f5f7fb;color:#17233a}
.school-app-header{display:flex;align-items:center;justify-content:space-between;gap:16px;background:white;border-bottom:1px solid #e2e8f0;padding:16px clamp(16px,4vw,50px)}
.school-app-brand{font-size:19px;font-weight:800}
.school-app-header nav{display:flex;gap:18px;margin:0;padding:0;max-width:none}
.school-app-header a{color:#365c94;text-decoration:none;font-size:14px}
.school-app-header a.active{font-weight:800;text-decoration:underline}
.school-app-main{width:100%;max-width:1200px;min-height:auto;flex:1;margin:0 auto;padding:30px clamp(16px,4vw,50px)}
.school-app-footer{width:100%;max-width:none;border-top:1px solid #e2e8f0;text-align:center;padding:20px;color:#64748b;font-size:12px}
.school-booking .school-app-brand{color:#236c77}
@media(max-width:520px){.school-app-header{flex-wrap:wrap}.school-app-header nav{width:100%}}

/* School booking interface */
.booking-page{max-width:1100px;margin:auto;padding:24px 16px}.booking-toolbar{display:flex;flex-wrap:wrap;gap:16px;margin:16px 0}.booking-toolbar label{display:flex;gap:8px;align-items:center}.booking-board{overflow-x:auto;border:1px solid #d9e1ee;border-radius:12px;background:white}.booking-board table{border-collapse:collapse;width:100%;min-width:420px}.booking-board td,.booking-board th{border:1px solid #dde4ef;padding:13px;text-align:center}.booking-board thead{background:#edf3fb}.booking-busy{background:#f2f4f7;color:#343c4a}.booking-free{background:#e8f7ed}.booking-note{color:#66768c;font-size:.9rem;margin-top:18px}.booking-settings-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.booking-settings-tabs button{border:1px solid #c9d4e3;background:white;border-radius:8px;padding:10px;cursor:pointer}.booking-settings-tabs button.selected{background:#1d4ed8;color:white}.admin-panel{background:white;border-radius:12px;padding:24px;border:1px solid #e0e6ef}.admin-panel h2{margin-top:0}