:root{
    --navy:#1B2A4A; --navy-deep:#0F1B33; --blue:#2C5AA0;
    --paper:#F4F6F9; --line:#DCE1E8; --ink:#1F2937; --muted:#5B6472;
    --warn:#B3372E; --ok:#2E7D50;
  }
  *{box-sizing:border-box;}
  body{margin:0;font-family:"Malgun Gothic","맑은 고딕",-apple-system,sans-serif;background:var(--paper);color:var(--ink);line-height:1.6;}

  /* ── 상단바 ── */
  .topbar{background:linear-gradient(135deg,var(--navy-deep),var(--navy));color:#fff;padding:18px 24px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
  .topbar h1{font-size:18px;margin:0;letter-spacing:.03em;}
  .topbar .sub{font-size:12.5px;color:#AFC0DC;}
  .topbar .actions{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;}

  /* ── 스텝 표시 ── */
  .steps{display:flex;gap:4px;background:#fff;border-bottom:1px solid var(--line);padding:0 16px;overflow-x:auto;}
  .step-tab{padding:12px 14px;font-size:13px;font-weight:600;color:var(--muted);border-bottom:3px solid transparent;cursor:pointer;white-space:nowrap;background:none;border-top:none;border-left:none;border-right:none;font-family:inherit;}
  .step-tab.active{color:var(--blue);border-bottom-color:var(--blue);}
  .step-tab.done{color:var(--ok);}
  .step-tab:hover{background:#F0F3F8;}

  .layout{max-width:960px;margin:0 auto;padding:24px 16px 80px;}
  .panel{background:#fff;border:1px solid var(--line);border-radius:10px;padding:26px 28px;box-shadow:0 4px 14px rgba(15,27,51,.06);}
  .panel h2{font-size:17px;color:var(--navy-deep);margin:0 0 4px;}
  .panel .desc{font-size:13px;color:var(--muted);margin:0 0 20px;}

  label.f{display:block;font-size:13px;font-weight:700;color:var(--navy-deep);margin:14px 0 5px;}
  label.f .opt{font-weight:400;color:var(--muted);font-size:12px;}
  input[type=text],input[type=email],textarea,select{
    width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:6px;font-size:14px;font-family:inherit;background:#FBFCFE;
  }
  input:focus,textarea:focus,select:focus{outline:2px solid #B9CCE8;border-color:var(--blue);}
  textarea{resize:vertical;min-height:70px;}
  .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
  .row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px;}
  .course-round-row{display:grid;grid-template-columns:minmax(0,1fr) 150px;gap:14px;align-items:end;}
  .date-entry{display:grid;grid-template-columns:minmax(0,1fr) 150px;gap:8px;align-items:center;}
  .date-entry input[type=date]{padding:8px 10px;border:1px solid var(--line);border-radius:6px;background:#fff;font-family:inherit;}
  .date-applied{font-size:12px;color:var(--blue);font-weight:700;margin-top:4px;min-height:20px;}
  @media(max-width:640px){.course-round-row,.date-entry{grid-template-columns:1fr;}}
  @media(max-width:640px){.row2,.row3{grid-template-columns:1fr;}}

  /* 동적 리스트 */
  .dyn-list{display:flex;flex-direction:column;gap:8px;margin-top:6px;}
  .dyn-item{display:flex;gap:8px;align-items:flex-start;}
  .dyn-item input,.dyn-item textarea{flex:1;}
  .btn{border:none;border-radius:6px;padding:8px 14px;font-size:13px;font-weight:700;cursor:pointer;font-family:inherit;}
  .btn.sm{padding:7px 10px;font-size:12.5px;}
  .btn.primary{background:var(--blue);color:#fff;}
  .btn.primary:hover{background:#234A85;}
  .btn.ghost{background:#EEF1F7;color:var(--navy-deep);}
  .btn.ghost:hover{background:#E0E6F0;}
  .btn.danger{background:#FCEBEA;color:var(--warn);}
  .btn.success{background:var(--ok);color:#fff;}
  .btn.white{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.35);}
  .btn.white:hover{background:rgba(255,255,255,.25);}

  .group-card{border:1px solid var(--line);border-radius:8px;padding:14px;margin-bottom:12px;background:#FAFBFD;}
  .group-card .gc-head{display:flex;gap:8px;align-items:center;margin-bottom:8px;}
  .group-card .gc-head input{font-weight:700;}

  .nav-btns{display:flex;justify-content:space-between;margin-top:22px;}

  .hint{background:#EEF4FC;border:1px solid #C9DAF1;border-radius:6px;padding:10px 14px;font-size:13px;color:#2A4A78;margin-bottom:16px;}

  /* 미리보기 */
  .preview-frame{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;}
  iframe#pv{width:100%;height:75vh;border:none;display:block;}

  .toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--navy-deep);color:#fff;padding:11px 22px;border-radius:30px;font-size:13.5px;opacity:0;transition:opacity .3s;pointer-events:none;z-index:99;}
  .toast.show{opacity:1;}

  /* ── 모드 전환 ── */
  .mode-switch{display:flex;gap:0;border:1px solid rgba(255,255,255,.35);border-radius:8px;overflow:hidden;}
  .mode-btn{border:none;padding:9px 16px;font-size:13px;font-weight:700;cursor:pointer;font-family:inherit;background:rgba(255,255,255,.10);color:#fff;}
  .mode-btn.active{background:#fff;color:var(--navy-deep);}

  /* ── 루브릭 편집 UI (평가 기준 도구) ── */
  .item-card{border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:8px;padding:12px;margin-bottom:10px;background:#fff;}
  .item-card .ic-head{display:flex;gap:8px;align-items:center;margin-bottom:8px;flex-wrap:wrap;}
  .item-card .ic-head select{flex:1;min-width:180px;}
  .item-card .ic-head input{flex:1;min-width:180px;font-weight:700;}
  .gc-head select{flex:1;min-width:180px;font-weight:700;}
  .scale5{display:grid;grid-template-columns:repeat(var(--n,5),1fr);gap:8px;}
  @media(max-width:860px){.scale5{grid-template-columns:1fr;}}
  .scale5 .sc{display:flex;flex-direction:column;}
  .scale5 .sc label{font-size:11.5px;font-weight:700;margin-bottom:3px;text-align:center;padding:3px;border-radius:4px;}
  .sc.s5 label{background:#EAF4EE;color:#1E5C39;}
  .sc.s4 label{background:#EDF3FB;color:#2A4A78;}
  .sc.s3 label{background:#F5F5F0;color:#6B6B4E;}
  .sc.s2 label{background:#FDF3EA;color:#8A5522;}
  .sc.s1 label{background:#FCEBEA;color:#7A2620;}
  .scale5 textarea{min-height:88px;font-size:12.5px;}
  .score-badge{display:inline-block;background:#EEF1F7;border:1px solid var(--line);border-radius:20px;padding:5px 16px;font-size:13.5px;font-weight:700;color:var(--navy-deep);margin-bottom:6px;}

/* 키캡 · 이미지 좌표형 · 단축키 모달 */
.kbd{display:inline-block;padding:2px 8px;margin:0 1px;border:1px solid #B7C0CE;border-bottom-width:3px;border-radius:5px;background:linear-gradient(#FDFDFE,#EEF1F5);font-size:.92em;font-weight:800;color:#1F2937;box-shadow:0 1px 0 rgba(0,0,0,.06);white-space:nowrap;line-height:1.5}
.kbd-plus{margin:0 2px;color:#5B6472;font-weight:800}
.kbd-combo{white-space:nowrap}
.imap-editor,.imap-view{--imap-gutter:200px;position:relative;display:inline-block;max-width:100%;padding-left:var(--imap-gutter);background:#fff}
.imap-editor{margin-top:10px;border:1px solid var(--line);border-radius:8px;overflow:hidden;touch-action:none}
.imap-view{margin-top:8px}
.imap-canvas{position:relative;display:inline-block;max-width:100%;vertical-align:top}
.imap-canvas img{display:block;max-width:100%;height:auto;user-select:none;-webkit-user-drag:none}
.imap-btn{position:absolute;transform:translate(-50%,-50%);width:36px;height:36px;border-radius:50%;border:2px solid #1B2A4A;background:#fff;color:#1B2A4A;font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center;line-height:1;padding:0;box-shadow:0 1px 4px rgba(0,0,0,.25)}
.imap-btn.imap-edge{left:0 !important;transform:translate(calc(-100% - 150px),-50%)}
.imap-view .imap-btn{border:none;border-radius:0;background:transparent;box-shadow:none;color:#0F1B33;font-weight:900;font-size:20px;text-shadow:-1px -1px 0 #fff,1px -1px 0 #fff,-1px 1px 0 #fff,1px 1px 0 #fff}
button.imap-btn.imap-drag{cursor:grab}
button.imap-btn.imap-drag:active{cursor:grabbing;background:#EEF4FC}
.image-dropzone{border:2px dashed #B8C5D8;border-radius:8px;background:#F8FAFD;padding:12px 14px;min-height:64px;display:flex;align-items:center;justify-content:center;text-align:center;cursor:pointer;color:#4B5D76;font-size:12.5px;transition:.15s border-color,.15s background,.15s box-shadow}
.image-dropzone:hover,.image-dropzone:focus{border-color:#6F93C5;background:#F1F6FD;outline:none}
.image-dropzone.dragover{border-color:var(--blue);background:#EAF2FD;box-shadow:0 0 0 3px rgba(44,90,160,.12)}
.image-dropzone.compact{min-height:48px;padding:8px 10px;margin-top:5px;font-size:11.5px}
.image-dropzone strong{color:var(--navy-deep)}
#scModal{display:none;position:fixed;inset:0;background:rgba(15,27,51,.45);z-index:1000;align-items:center;justify-content:center;padding:20px}
.sc-modal-box{background:#F7FAFE;border:1px solid #C9DAF1;border-radius:12px;max-width:780px;width:100%;max-height:88vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 18px 48px rgba(15,27,51,.35)}
.sc-key{border:1px solid #C6CEDB;border-bottom-width:3px;border-radius:6px;background:#fff;padding:5px 9px;font-size:12.5px;font-weight:700;color:var(--navy-deep);cursor:pointer;min-width:34px}
.sc-key:hover{background:#EEF4FC;border-color:#8FB0DE}
.sc-key:active{border-bottom-width:1px;transform:translateY(2px)}
.sc-open{white-space:nowrap}

/* ── 브라우저 저장용량 감시 · JSON 백업 안내 ── */
.storage-warning{position:fixed;right:20px;bottom:20px;z-index:1300;width:min(430px,calc(100vw - 32px));background:#fff;border:1px solid #E3B35C;border-left:6px solid #D98B16;border-radius:12px;box-shadow:0 18px 48px rgba(15,27,51,.28);padding:16px 17px;display:none}
.storage-warning.show{display:block}
.storage-warning.critical{border-color:#D69A94;border-left-color:var(--warn)}
.storage-warning .sw-head{display:flex;align-items:flex-start;gap:10px}
.storage-warning .sw-icon{font-size:24px;line-height:1}
.storage-warning .sw-title{font-size:14.5px;font-weight:800;color:var(--navy-deep);margin:0}
.storage-warning .sw-text{font-size:12.5px;color:var(--muted);margin:5px 0 0;line-height:1.55}
.storage-warning .sw-meter{height:8px;background:#EEF1F5;border-radius:999px;overflow:hidden;margin:12px 0 5px}
.storage-warning .sw-meter>span{display:block;height:100%;width:0;background:#D98B16;transition:width .25s}
.storage-warning.critical .sw-meter>span{background:var(--warn)}
.storage-warning .sw-usage{font-size:11.5px;color:var(--muted);text-align:right}
.storage-warning .sw-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px;flex-wrap:wrap}
.storage-status-warn{color:#FFD48A!important;font-weight:800}
.storage-status-critical{color:#FFAAA3!important;font-weight:800}


/* IndexedDB · 통합백업 · 로컬 폴더 저장 관리 */
.local-storage-modal{display:none;position:fixed;inset:0;background:rgba(15,27,51,.52);z-index:1200;align-items:center;justify-content:center;padding:20px}
.local-storage-modal.show{display:flex}
.local-storage-box{width:min(720px,100%);max-height:90vh;overflow:auto;background:#fff;border-radius:12px;border:1px solid var(--line);box-shadow:0 18px 55px rgba(15,27,51,.35)}
.local-storage-head{display:flex;align-items:center;gap:10px;padding:17px 20px;border-bottom:1px solid var(--line);background:#F7FAFE;position:sticky;top:0;z-index:1}
.local-storage-head h3{margin:0;font-size:17px;color:var(--navy-deep);flex:1}
.local-storage-body{padding:18px 20px 22px}
.local-storage-card{border:1px solid var(--line);border-radius:9px;padding:14px 15px;margin-bottom:12px;background:#FAFBFD}
.local-storage-card h4{font-size:14px;color:var(--navy-deep);margin:0 0 7px}
.local-storage-line{font-size:12.5px;color:var(--muted);line-height:1.65;word-break:break-all}
.local-storage-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:11px}
.local-storage-meter{height:9px;background:#E9EDF3;border-radius:999px;overflow:hidden;margin:9px 0 5px}
.local-storage-meter span{display:block;width:0;height:100%;background:var(--blue);transition:width .25s}
.local-storage-note{font-size:11.5px;color:var(--muted);margin-top:7px}
.local-storage-ok{color:var(--ok);font-weight:800}.local-storage-bad{color:var(--warn);font-weight:800}