@charset "utf-8";
/* =========================================================
   수업꾸러미 자료실 - 관리자 화면 (common.css 다음에 불러옴)
   PC(1280px 이상) 기준. 1024px 이하에서는 왼쪽 메뉴가 서랍형으로 바뀜
   ========================================================= */
.adm-body{background:#F3F4F8}
.adm{display:flex;min-height:100vh}
.adm-side{flex:0 0 248px;display:flex;flex-direction:column;gap:6px;background:var(--navy);color:#fff;padding:24px 16px;position:sticky;top:0;height:100vh;overflow-y:auto}
.adm-logo{display:flex;align-items:center;gap:12px;padding:4px 8px 22px;text-decoration:none;color:#fff;border-bottom:1px solid #34405E;margin-bottom:12px}
.adm-emblem{width:40px;height:40px;border-radius:10px;background:#fff;display:inline-flex;align-items:center;justify-content:center;flex:none}
.adm-emblem img{width:28px;height:30px}
.adm-logo strong{display:block;font-size:16px;line-height:1.3}
.adm-logo small{display:block;font-size:13px;color:#AEB6CA}
.adm-nav{display:flex;flex-direction:column;gap:4px}
.adm-nav a{display:flex;align-items:center;gap:12px;min-height:46px;padding:0 14px;border-radius:12px;color:#C9D0E0;text-decoration:none;font-size:15px;font-weight:500}
.adm-nav a:hover{background:#2B3858;color:#fff}
.adm-nav a[aria-current="page"]{background:var(--indigo);color:#fff;font-weight:700}
.adm-nav svg{width:20px;height:20px;flex:none}
.adm-side .sp{flex:1}
.adm-user{display:flex;align-items:center;gap:10px;padding:14px 8px;border-top:1px solid #34405E}
.adm-avatar{width:36px;height:36px;border-radius:50%;background:#3A4766;display:inline-flex;align-items:center;justify-content:center;font-weight:700}
.adm-user strong{display:block;font-size:14px}
.adm-user small{display:block;font-size:12px;color:#AEB6CA}
.adm-logout{display:flex;align-items:center;justify-content:center;min-height:42px;border-radius:10px;background:#2B3858;color:#fff;text-decoration:none;font-size:14px}
.adm-logout:hover{background:#34405E}
.adm-main{flex:1;min-width:0;display:flex;flex-direction:column}
.adm-top{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:16px;min-height:64px;padding:0 32px;background:#fff;border-bottom:1px solid var(--line)}
.adm-menu{display:none;width:44px;height:44px;border:0;border-radius:10px;background:var(--chip);align-items:center;justify-content:center}
.adm-crumb{display:flex;gap:6px;font-size:14px;color:var(--muted)}
.adm-crumb li+li::before{content:"›";margin-right:6px;color:var(--faint)}
.adm-crumb [aria-current]{color:var(--ink);font-weight:700}
.adm-top .sp{flex:1}
.adm-toplink{font-size:14px;font-weight:500;color:var(--indigo-d);text-decoration:none}
.adm-toplink:hover{text-decoration:underline}
.adm-session{font-size:13px;color:var(--muted);background:var(--chip);padding:6px 12px;border-radius:999px;font-variant-numeric:tabular-nums}
.adm-session b{color:var(--ink)}
.adm-content{padding:32px;display:flex;flex-direction:column;gap:24px;max-width:1440px;width:100%}
.adm-dim{position:fixed;inset:0;z-index:90;background:rgba(20,26,40,.5)}
@media (max-width:1024px){
  .adm-side{position:fixed;left:0;top:0;bottom:0;z-index:100;transform:translateX(-100%);transition:transform .25s ease;height:auto}
  .adm-side.is-open{transform:none}
  .adm-menu{display:inline-flex}
  .adm-top{padding:0 16px}
  .adm-session{display:none}
  .adm-content{padding:20px 16px}
}
@media (max-width:600px){.adm-toplink{display:none}}

.adm-title-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.adm-title{font-size:28px;font-weight:900;letter-spacing:-.6px}
.adm-title-row .sp{flex:1}
.adm-desc{font-size:15px;color:var(--muted);margin-top:4px}

.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}
.card-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px}
.card-title{font-size:18px;font-weight:900}
.card-head .sp{flex:1}
.card-note{font-size:13px;color:var(--muted)}

.filters{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.filters .select{width:auto;min-width:130px;min-height:44px;font-size:15px}
.filters .input{flex:1 1 220px;min-height:44px;font-size:15px;min-width:0}
.status-tabs{display:flex;flex-wrap:wrap;gap:8px}
.status-tabs button{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:0 14px;border:1px solid var(--line-2);border-radius:10px;background:#fff;font-size:14px;font-weight:500}
.status-tabs button b{font-variant-numeric:tabular-nums}
.status-tabs button[aria-pressed="true"]{background:var(--navy);border-color:var(--navy);color:#fff}

.tbl-wrap{position:relative;overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:#fff}
.tbl{min-width:860px;font-size:14px}
.tbl th,.tbl td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.tbl thead th{background:#F6F7FA;color:var(--muted);font-weight:700;white-space:nowrap;position:sticky;top:0}
.tbl tbody tr:hover{background:#FAFBFD}
.tbl tbody tr:last-child td{border-bottom:0}
.tbl .c-check{width:48px}
.tbl .c-num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.tbl .c-mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;white-space:nowrap}
.tbl .c-date{white-space:nowrap;font-variant-numeric:tabular-nums;color:var(--muted)}
.tbl a.row-link{font-weight:700;text-decoration:none}
.tbl a.row-link:hover{text-decoration:underline}
.tbl input[type=checkbox]{width:18px;height:18px;accent-color:var(--indigo);margin:0}
.txt-danger{color:var(--danger);font-weight:700}
.txt-warn{color:var(--warn);font-weight:700}
.txt-ok{color:var(--ok);font-weight:700}
.txt-muted{color:var(--muted)}
.bulkbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;padding:12px 16px;background:var(--indigo-50);border-radius:12px;font-size:14px}
.bulkbar b{color:var(--indigo-d)}
.list-foot{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.list-foot .pagination{margin:0 auto}
.list-foot .select{width:auto;min-height:40px;font-size:14px}

/* form */
.form-section{display:flex;flex-direction:column;gap:18px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 24px}
.form-grid .full{grid-column:1 / -1}
@media (max-width:760px){.form-grid{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:8px}
.field>label,.field-label{font-size:14px;font-weight:700}
.req{color:var(--danger);margin-left:2px}
.help{font-size:13px;color:var(--muted)}
.err-msg{display:none;font-size:13px;color:var(--danger);font-weight:500}
.field.is-error .input,.field.is-error .select,.field.is-error .textarea{border-color:var(--danger);box-shadow:0 0 0 3px var(--danger-50)}
.field.is-error .err-msg{display:block}
.inline-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.inline-row .input{flex:1 1 240px;min-width:0}
.radio-row{display:flex;flex-wrap:wrap;gap:8px 20px}
.file-rows{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.file-row{display:grid;grid-template-columns:170px 1fr auto;gap:12px;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line)}
.file-row:last-child{border-bottom:0}
.file-row .ft{font-weight:700;font-size:14px}
.file-row .fn{font-size:14px;color:var(--muted);min-width:0;word-break:break-all}
.file-row .fn.has-file{color:var(--ink)}
.file-pick{position:relative;display:inline-flex}
.file-pick input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%}
.file-pick input:focus-visible+span{outline:3px solid var(--indigo);outline-offset:2px}
@media (max-width:760px){.file-row{grid-template-columns:1fr auto}.file-row .fn{grid-column:1 / -1;grid-row:2}}
.form-actions{position:sticky;bottom:0;z-index:10;display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end;padding:16px 0;background:linear-gradient(180deg,rgba(243,244,248,0) 0%,#F3F4F8 30%)}
.switch{display:inline-flex;align-items:center;gap:10px;background:none;border:0;padding:0;font-size:14px}
.switch i{position:relative;width:48px;height:28px;border-radius:14px;background:var(--line-2);transition:background .2s}
.switch i::after{content:"";position:absolute;left:3px;top:3px;width:22px;height:22px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.2);transition:transform .2s}
.switch[aria-checked="true"] i{background:var(--indigo)}
.switch[aria-checked="true"] i::after{transform:translateX(20px)}
.editor{border:1px solid var(--line-2);border-radius:12px;overflow:hidden}
.editor-tools{display:flex;flex-wrap:wrap;gap:4px;padding:8px;background:#F6F7FA;border-bottom:1px solid var(--line)}
.editor-tools button{min-width:36px;height:36px;border:0;border-radius:8px;background:none;font-size:14px;font-weight:700}
.editor-tools button:hover{background:var(--chip-2)}
.editor-area{min-height:260px;padding:16px;line-height:1.7;outline:none}
.editor-area:focus{box-shadow:inset 0 0 0 2px var(--indigo-50)}

/* stepper */
.stepper{display:flex;gap:8px;counter-reset:st}
.stepper li{flex:1;display:flex;align-items:center;gap:10px;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:14px;font-size:15px;font-weight:500;color:var(--muted);counter-increment:st}
.stepper li::before{content:counter(st);flex:none;width:30px;height:30px;border-radius:50%;background:var(--chip);color:var(--muted);font-weight:900;display:flex;align-items:center;justify-content:center}
.stepper li.is-done{color:var(--ink)}
.stepper li.is-done::before{content:"✓";background:var(--ok-50);color:var(--ok)}
.stepper li[aria-current="step"]{border-color:var(--navy);color:var(--ink);font-weight:700;box-shadow:0 0 0 1px var(--navy)}
.stepper li[aria-current="step"]::before{background:var(--navy);color:#fff}
@media (max-width:760px){.stepper{flex-wrap:wrap}.stepper li{flex:1 1 45%}}

.drop-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
@media (max-width:760px){.drop-row{grid-template-columns:1fr}}
.dropzone{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;min-height:190px;padding:24px;text-align:center;border:2px dashed var(--line-2);border-radius:16px;background:#FAFBFD;transition:border-color .15s,background .15s}
.dropzone input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%}
.dropzone.is-over{border-color:var(--indigo);background:var(--indigo-50)}
.dropzone.is-done{border-style:solid;border-color:var(--ok);background:var(--ok-50)}
.dz-icon{width:52px;height:52px;border-radius:14px;background:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow)}
.dz-title{font-size:16px;font-weight:700}
.dz-sub{font-size:13px;color:var(--muted)}
.dz-file{font-size:14px;font-weight:700;color:var(--ok);word-break:break-all}
.progress{width:min(280px,100%);height:10px;border-radius:5px;background:var(--line);overflow:hidden}
.progress i{display:block;height:100%;width:0;background:var(--indigo);border-radius:5px;transition:width .15s}

.kpis{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
@media (max-width:1100px){.kpis{grid-template-columns:repeat(2,minmax(0,1fr))}}
.kpi{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 22px;display:flex;flex-direction:column;gap:4px}
.kpi span{font-size:14px;color:var(--muted)}
.kpi strong{font-size:30px;font-weight:900;letter-spacing:-.5px;font-variant-numeric:tabular-nums;line-height:1.3}
.kpi small{font-size:13px;color:var(--muted)}
.kpi.ok{background:var(--ok-50);border-color:#CDE8D6}.kpi.ok span{color:var(--ok)}
.kpi.err{background:var(--danger-50);border-color:#F5CDD1}.kpi.err span{color:var(--danger)}
.kpi.warn{background:var(--warn-50);border-color:#F1DFA8}.kpi.warn span{color:var(--warn)}

.alert{display:flex;gap:12px;align-items:flex-start;padding:16px 18px;border-radius:14px;font-size:15px}
.alert svg{flex:none;width:22px;height:22px;margin-top:1px}
.alert-info{background:var(--indigo-50);color:#2E3690}
.alert-warn{background:var(--warn-50);color:#6A4500}

.grid-2{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:20px}
@media (max-width:1100px){.grid-2{grid-template-columns:1fr}}
.vchart{display:flex;align-items:flex-end;gap:14px;height:240px;padding:8px 4px 0;border-bottom:1px solid var(--line-2);position:relative}
.vchart .col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:6px;height:100%}
.vchart .bar{width:100%;max-width:48px;border-radius:8px 8px 0 0;background:#B9BEF3}
.vchart .col.is-now .bar{background:var(--indigo)}
.vchart .val{font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
.vchart-x{display:flex;gap:14px;padding:8px 4px 0}
.vchart-x span{flex:1;text-align:center;font-size:13px;color:var(--muted)}
.hbars{display:flex;flex-direction:column;gap:12px}
.hbar{display:grid;grid-template-columns:76px 1fr 64px;gap:12px;align-items:center;font-size:14px}
.hbar .track{height:14px;border-radius:7px;background:var(--chip);overflow:hidden}
.hbar .track i{display:block;height:100%;border-radius:7px;background:var(--indigo)}
.hbar b{text-align:right;font-variant-numeric:tabular-nums}
.rank{display:inline-flex;width:26px;height:26px;border-radius:8px;align-items:center;justify-content:center;font-weight:900;font-size:13px;background:var(--chip)}
.rank.top{background:var(--navy);color:#fff}

.danger-zone{display:flex;flex-wrap:wrap;align-items:center;gap:12px;justify-content:space-between;border:1px solid #F5CDD1;background:#FFF8F9}
.danger-zone p{font-size:14px;color:var(--muted)}

/* login */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:32px max(16px,env(safe-area-inset-right,0px)) 32px max(16px,env(safe-area-inset-left,0px));background:
  radial-gradient(circle at 0% 0%,#FCE1E7 0%,rgba(252,225,231,0) 45%),
  radial-gradient(circle at 100% 100%,#DCE3FB 0%,rgba(220,227,251,0) 50%),#F3F4F8}
.login-card{width:100%;max-width:460px;background:#fff;border-radius:24px;box-shadow:0 24px 60px rgba(31,42,68,.12);padding:40px;display:flex;flex-direction:column;gap:18px}
@media (max-width:600px){.login-card{padding:28px 22px}}
.login-brand{display:flex;align-items:center;gap:12px}
.login-brand img{width:36px;height:38px}
.login-brand span{display:flex;flex-direction:column;line-height:1.35}
.login-brand small{font-size:13px;color:var(--muted)}
.login-brand strong{font-size:17px}
.login-card h1{font-size:30px;font-weight:900;letter-spacing:-.8px}
.login-err{font-size:14px;color:var(--danger);font-weight:500;min-height:1.4em}
.login-help{font-size:13px;color:var(--muted);line-height:1.6}