@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;600;700&display=swap');*{box-sizing:border-box}body{margin:0;background:#f4f5f8;color:#222;font-family:'Noto Sans KR',Arial,sans-serif}.admin-shell{display:grid;grid-template-columns:230px 1fr;min-height:100vh}.sidebar{background:#15151b;color:#fff;padding:26px 18px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}.admin-logo{font-size:20px;font-weight:800;margin-bottom:35px}.admin-logo small{display:block;font-size:9px;letter-spacing:2px;color:#aaa}.sidebar nav a{display:block;padding:12px 13px;border-radius:8px;color:#ddd;font-size:14px}.sidebar nav a:hover{background:#292932;color:#fff}.logout{margin-top:auto;color:#aaa;padding:12px}.admin-main{min-width:0}.admin-top{height:72px;background:#fff;border-bottom:1px solid #e4e4e8;display:flex;align-items:center;gap:20px;padding:0 28px}.admin-top button{display:none}.admin-top h1{font-size:21px;margin:0;flex:1}.admin-top span{font-size:12px;color:#777}.admin-content{padding:28px}.admin-flash{padding:13px 16px;border-radius:8px;margin-bottom:16px}.admin-flash.success{background:#e8faee;color:#176d35}.admin-flash.error{background:#ffeaea;color:#9e2525}.admin-flash.warning{background:#fff6dc;color:#8a650b}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px}.metrics>div{background:#fff;border:1px solid #e5e5e8;border-radius:12px;padding:23px}.metrics span,.metrics small{display:block;color:#777;font-size:12px}.metrics b{display:block;font-size:27px;margin:8px 0}.metrics .accent{background:#25222e;color:#fff}.metrics .accent span,.metrics .accent small{color:#bbb}.admin-grid{display:grid;gap:20px}.admin-grid.two{grid-template-columns:1fr 1fr}.form-two{grid-template-columns:1fr 330px}.panel{background:#fff;border:1px solid #e4e4e8;border-radius:12px;padding:23px;margin-bottom:20px;min-width:0}.panel h2{font-size:17px;margin:0 0 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