.admin-page{margin:0;background:var(--p-bg);min-height:100dvh}.admin-shell{display:grid;grid-template-columns:220px minmax(0,1fr);min-height:100dvh}.admin-side{position:sticky;top:0;align-self:start;height:100dvh;padding:30px 20px;display:flex;flex-direction:column;border-right:1px solid var(--p-line);background:var(--app-paper)}.admin-brand{font-size:20px;font-weight:750;letter-spacing:-.5px}.admin-brand small{display:block;font-size:12px;font-weight:400;color:var(--p-muted);margin-top:4px}.admin-nav{display:grid;gap:5px;margin:38px 0}.admin-nav button{text-align:left;border:0;border-radius:9px;background:transparent;padding:12px 14px;min-height:46px;color:var(--app-muted);white-space:nowrap}.admin-nav button[aria-current=page]{background:var(--app-accent-soft);color:var(--app-ink);font-weight:650}.admin-side-bottom{margin-top:auto;font-size:12px;color:var(--p-muted);overflow-wrap:anywhere}.admin-side-bottom .p-button{display:block;padding-left:0}.admin-main{width:100%;max-width:1240px;padding:38px 42px 90px;min-width:0}.admin-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap;margin-bottom:24px}.admin-heading h1{font-size:29px;letter-spacing:-1px;margin:0}.admin-heading p{margin:5px 0 0;color:var(--p-muted);font-size:14px}.admin-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.admin-stat strong{display:block;font-size:35px;line-height:1.3;font-weight:650}.admin-stat span{font-size:13px;color:var(--p-muted)}.admin-toolbar{display:flex;align-items:end;flex-wrap:wrap;gap:14px;margin-bottom:20px}.admin-toolbar .p-field{flex:1;min-width:150px;max-width:330px;font-size:13px}.admin-table-wrap{overflow-x:auto;border:1px solid var(--p-line);border-radius:12px;background:var(--app-paper);-webkit-overflow-scrolling:touch}.admin-table{width:100%;border-collapse:collapse;font-size:14px}.admin-table th,.admin-table td{text-align:left;padding:15px 18px;border-bottom:1px solid var(--p-line);vertical-align:top}.admin-table th{font-size:12px;font-weight:500;color:var(--p-muted);white-space:nowrap;background:var(--app-paper)}.admin-table tr:last-child td{border-bottom:0}.admin-table td small{display:block;color:var(--p-muted);font-size:12px}.admin-table code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:15px;letter-spacing:1px}.admin-pager{display:flex;justify-content:space-between;align-items:center;margin-top:18px}.admin-course-list,.admin-category-list{display:grid;gap:12px}.admin-course{display:flex;align-items:center;justify-content:space-between;gap:20px}.admin-course h3{font-size:17px;margin-bottom:5px;overflow-wrap:anywhere}.admin-course p{font-size:13px;color:var(--p-muted)}.admin-course .p-button{flex-shrink:0}.admin-form-card{max-width:850px}.admin-detail-meta{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 24px}.admin-player{width:100%;max-height:420px;background:var(--app-media);border-radius:12px;display:block;margin:20px 0}.admin-sentences{list-style:none;margin:15px 0;padding:0;max-height:500px;overflow-y:auto;border:1px solid var(--p-line);border-radius:10px;overscroll-behavior:contain}.admin-sentences li{padding:15px 18px;border-bottom:1px solid var(--p-line)}.admin-sentences li:last-child{border:0}.admin-sentences p{margin:5px 0;overflow-wrap:anywhere}.admin-sentences small{color:var(--p-muted)}.admin-sentences .ko{font-size:18px}.admin-section{margin-top:24px}.admin-section h2{font-size:19px;margin:0 0 14px}.admin-toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);z-index:20;max-width:calc(100% - 32px);padding:12px 20px;border-radius:12px;background:var(--app-media);color:var(--app-on-dark);box-shadow:0 6px 25px rgba(var(--app-ink-rgb),0.145);font-size:14px}.admin-warning{margin:0 0 20px}.admin-preview-title{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px}.admin-category-actions{display:flex;gap:6px;flex-shrink:0}.admin-code-new{margin:20px 0}.admin-code-new textarea{font-family:ui-monospace,monospace;min-height:130px}.admin-import-status{margin-top:24px}.admin-import-status strong{display:block}.admin-login-wrap{min-height:100dvh;padding:30px 20px}.admin-key-hint{word-break:break-all}.admin-auth-state{padding:25px 0}.admin-checklist{display:grid;gap:9px}.admin-details-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px}@media(max-width:1100px){.admin-main{padding:30px 25px 70px}.admin-shell{grid-template-columns:195px minmax(0,1fr)}.admin-side{padding:25px 14px}.admin-details-grid{grid-template-columns:1fr}.admin-stats{gap:10px}}@media(max-width:760px){.admin-shell{display:block}.admin-side{position:sticky;height:auto;z-index:5;padding:14px 16px 0;border-right:0;border-bottom:1px solid var(--p-line)}.admin-brand{font-size:18px}.admin-brand small{display:none}.admin-nav{display:flex;overflow-x:auto;gap:4px;margin:10px -4px 0;padding-bottom:10px;scrollbar-width:none}.admin-nav button{padding:9px 13px;min-height:44px;font-size:14px}.admin-side-bottom{position:absolute;top:12px;right:14px}.admin-side-bottom>span{display:none}.admin-side-bottom .p-button{min-height:44px;font-size:12px}.admin-main{padding:24px 16px 65px}.admin-heading h1{font-size:26px}.admin-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-stat{padding:18px}.admin-stat strong{font-size:29px}.admin-course{align-items:flex-start;gap:12px;padding:18px}.admin-course h3{font-size:16px}.admin-category-actions{flex-direction:column}.admin-toolbar{gap:10px}.admin-toolbar .p-field{max-width:none;min-width:130px}.admin-table th,.admin-table td{padding:13px 14px}.admin-heading .p-button{font-size:13px}.admin-toast{bottom:15px}.admin-form-card{padding:20px}.admin-course .p-button{padding:9px 11px;font-size:13px}}

.admin-table th { background: var(--app-subtle); }
.admin-code-table td,.admin-code-table .p-button { white-space: nowrap; }
.admin-nav button[aria-current="page"] { color: var(--app-accent-ink); }
.admin-stats .admin-stat:first-child { border-color: var(--app-accent-line); }
@media (hover:hover) {
  .admin-nav button:hover:not([aria-current="page"]) { background: var(--app-subtle); color: var(--app-ink); }
  .admin-nav button[aria-current="page"]:hover { background: var(--app-accent); }
}
@media (max-width:760px) {
  .admin-brand { max-width: calc(100% - 72px); overflow-wrap: anywhere; }
  .admin-side-bottom { top: 8px; }
  .admin-side-bottom .p-button { padding: 8px 10px; }
}
.admin-confirm{width:min(440px,calc(100vw - 32px));max-height:calc(100dvh - 32px);margin:auto;padding:24px;border:1px solid var(--app-line);border-radius:16px;background:var(--app-paper);color:var(--app-ink);overflow:auto;overscroll-behavior:contain;box-shadow:0 18px 60px rgba(var(--app-ink-rgb),.18)}.admin-confirm::backdrop{background:rgba(var(--app-ink-rgb),.34)}.admin-confirm h2{margin:0 0 12px;font-size:21px;line-height:1.4}.admin-confirm p{margin:0;color:var(--app-muted);font-size:15px;overflow-wrap:anywhere}.admin-confirm-actions{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:10px;margin-top:24px}.admin-confirm-actions .p-button{min-width:100px;min-height:44px}.admin-confirm-actions .danger{background:var(--app-danger-soft);border-color:var(--app-danger-line)}@media(max-width:480px){.admin-confirm{padding:22px}.admin-confirm-actions .p-button{flex:1}}

.admin-video-sources{max-width:850px;margin-bottom:24px;min-width:0}.admin-video-sources h2{margin:0 0 18px;font-size:20px}.admin-source-facts:empty{display:none}.admin-source-facts{margin-bottom:20px;overflow-wrap:anywhere}.admin-source-facts p{margin:4px 0;font-size:14px}.admin-source-link{display:inline-flex;align-items:center;min-height:44px;color:var(--app-action);font-size:14px;text-underline-offset:3px}.admin-video-preview,.admin-video-upload{margin-top:24px;padding-top:22px;border-top:1px solid var(--p-line)}.admin-video-preview h3{margin:0;font-size:16px}.admin-video-preview .admin-player{margin:14px 0 0;aspect-ratio:16/9;max-height:400px}.admin-video-preview .p-empty{padding:24px 12px;margin-bottom:0}.admin-video-sources .p-field input{min-width:0;max-width:100%;font-size:16px}.admin-video-sources input[type=file]{overflow:hidden;white-space:normal}.admin-video-sources .p-progress{width:100%}.admin-video-sources .p-button{min-height:44px}.admin-video-sources .admin-import-status{margin-top:16px}@media(max-width:760px){.admin-video-sources{padding:20px}.admin-source-form .p-button,.admin-video-upload>.p-button{width:100%}.admin-video-preview,.admin-video-upload{margin-top:20px;padding-top:20px}}

.course-cover{position:relative;display:block;overflow:hidden;flex:none;background:#e6ede8;border-radius:10px;aspect-ratio:16/9}.course-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.course-cover-placeholder{display:grid;place-items:center;width:100%;height:100%;background:linear-gradient(135deg,#e6eee7,#f4eed7);color:#557960;font-size:28px;font-weight:700}.course-cover-placeholder[hidden]{display:none}.admin-course-cover{width:144px;height:81px}.admin-course-id{display:block;margin-top:8px;font-size:12px;overflow-wrap:anywhere;color:var(--p-muted,#69746e)}.admin-course>div{min-width:0;flex:1}.admin-user-table{min-width:740px}.admin-user-table td .p-button{margin:4px 5px 4px 0}.admin-user-table td small{display:block;max-width:180px}.admin-user-table td:first-child{white-space:nowrap}.admin-user-table td:nth-child(3){min-width:160px}
@media(max-width:600px){.admin-course{flex-wrap:wrap;gap:12px}.admin-course-cover{width:100px;height:57px}.admin-course>div{min-width:140px}.admin-course>.p-button{margin-left:auto}.admin-course-id{font-size:11px}}

.admin-login-history{box-sizing:border-box;width:min(720px,calc(100vw - 24px));max-width:calc(100vw - 24px);max-height:calc(100vh - 24px);max-height:calc(100dvh - 24px);margin:auto;padding:0;border:1px solid var(--p-line);border-radius:16px;background:var(--app-paper);color:var(--app-ink);overflow:hidden;box-shadow:0 18px 60px rgba(var(--app-ink-rgb),.18)}
.admin-login-history[open]{display:flex;flex-direction:column}
.admin-login-history::backdrop{background:rgba(var(--app-ink-rgb),.34)}
.admin-login-history-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:20px 22px 12px;flex:none}
.admin-login-history-header>div{min-width:0;overflow-wrap:anywhere}.admin-login-history-header h2{margin:0;font-size:22px}.admin-login-history-header p{margin:4px 0 0;font-size:14px}
.admin-login-history .p-button{min-height:44px;flex-shrink:0}.admin-login-history-hint{flex:none;margin:0;padding:0 22px 16px;color:var(--p-muted);font-size:13px;line-height:1.6;border-bottom:1px solid var(--p-line)}
.admin-login-history-body{min-height:0;min-width:0;padding:4px 22px 16px;overflow:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;overflow-wrap:anywhere}
.admin-login-history-list{list-style:none;padding:0;margin:0}.admin-login-history-item{padding:18px 0;border-bottom:1px solid var(--p-line)}.admin-login-history-item:last-child{border-bottom:0}.admin-login-history-time{margin:0 0 12px;font-size:15px;font-weight:650;font-variant-numeric:tabular-nums}
.admin-login-history-facts{display:grid;grid-template-columns:1.1fr .75fr 1.5fr;gap:12px;margin:0}.admin-login-history-facts>div{min-width:0}.admin-login-history-facts dt{font-size:12px;color:var(--p-muted);margin-bottom:4px}.admin-login-history-facts dd{font-size:14px;margin:0;overflow-wrap:anywhere}
.admin-login-history-agent{font-size:13px;color:var(--p-muted);margin-top:10px}.admin-login-history-agent summary{display:list-item;cursor:pointer;min-height:32px;line-height:32px}.admin-login-history-agent p{margin:4px 0 0;overflow-wrap:anywhere;font-family:ui-monospace,monospace;font-size:12px}
.admin-login-history-footer{display:flex;flex:none;align-items:center;justify-content:space-between;gap:12px;padding:14px 22px;border-top:1px solid var(--p-line);background:var(--app-subtle)}.admin-login-history-footer>span{font-size:13px;text-align:center}
@media(max-width:480px){.admin-login-history-header{padding:16px 16px 10px}.admin-login-history-hint{padding:0 16px 12px}.admin-login-history-body{padding:0 16px 12px}.admin-login-history-facts{grid-template-columns:1fr;gap:8px}.admin-login-history-facts>div{display:grid;grid-template-columns:90px minmax(0,1fr);gap:8px}.admin-login-history-facts dt{margin:0}.admin-login-history-footer{padding:10px 12px;gap:8px}.admin-login-history-footer .p-button{padding:9px 10px;font-size:13px}.admin-login-history-footer>span{font-size:12px}}