:root{--bg:#0b0b0e;--surface:#141419;--surface-2:#1a1a20;--surface-3:#202027;--border:rgba(255,255,255,.11);--text:#f7f7f8;--muted:rgba(255,255,255,.58);--blue:#33afe4;--pink:#ea0e6c;--green:#50c6a8;--yellow:#ffc709;--danger:#ff5d68;--radius:14px;--shadow:0 24px 70px rgba(0,0,0,.55);--font-body:Jost,system-ui,sans-serif;--font-title:Montserrat,Jost,system-ui,sans-serif}
*{box-sizing:border-box}html{color-scheme:dark}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.45 var(--font-body)}button,input,select{font:inherit}button,a,label[tabindex]{-webkit-tap-highlight-color:transparent}button{color:inherit}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none!important}:focus-visible{outline:3px solid rgba(51,175,228,.65);outline-offset:3px}.eyebrow{margin:0 0 7px;color:var(--blue);font-size:.72rem;font-weight:700;letter-spacing:.15em;text-transform:uppercase}.muted{color:var(--muted)}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:var(--font-title);letter-spacing:-.025em}h1{margin-bottom:6px;font-size:clamp(1.75rem,3vw,2.4rem)}h2{margin-bottom:4px;font-size:1.25rem}.button{min-height:44px;border:0;border-radius:999px;padding:10px 20px;font-weight:700;cursor:pointer;transition:transform .16s ease,filter .16s ease,background .16s ease}.button:hover{transform:translateY(-1px);filter:brightness(1.08)}.button:disabled{cursor:not-allowed;opacity:.55;transform:none}.button-primary{background:linear-gradient(90deg,var(--blue),var(--pink));color:#fff;box-shadow:0 8px 26px rgba(234,14,108,.16)}.button-secondary{border:1px solid var(--border);background:rgba(255,255,255,.06)}.button-danger{background:var(--danger);color:#fff}.button-wide{width:100%}.icon-button{display:grid;width:44px;height:44px;place-items:center;border:0;border-radius:10px;background:transparent;font-size:1.35rem;cursor:pointer}.icon-button:hover{background:rgba(255,255,255,.08)}
.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 50% 10%,rgba(51,175,228,.14),transparent 35%),radial-gradient(circle at 90% 90%,rgba(234,14,108,.1),transparent 30%)}.login-card{width:min(440px,100%);padding:40px;border:1px solid var(--border);border-radius:20px;background:rgba(20,20,25,.9);box-shadow:var(--shadow)}.login-logo{width:150px;margin-bottom:40px}.login-card .muted{margin-bottom:28px}.stack{display:grid;gap:18px}label{display:grid;gap:7px;color:rgba(255,255,255,.82);font-size:.88rem;font-weight:600}input,select{width:100%;min-height:44px;border:1px solid var(--border);border-radius:10px;background:rgba(255,255,255,.055);padding:10px 12px;color:var(--text);outline:none}input:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(51,175,228,.12)}.form-error{margin:0;padding:11px 13px;border:1px solid rgba(255,93,104,.35);border-radius:9px;background:rgba(255,93,104,.1);color:#ffabb1;font-size:.88rem}
.app-shell{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;z-index:20;display:flex;width:244px;flex-direction:column;border-right:1px solid var(--border);background:#101014;padding:28px 18px}.sidebar>a{padding:0 10px}.sidebar img{width:148px}.sidebar nav{display:grid;gap:6px;margin-top:50px}.nav-item{display:flex;min-height:44px;align-items:center;gap:12px;border-radius:10px;padding:10px 13px;color:var(--muted);font-weight:600;text-decoration:none}.nav-item span{width:22px;text-align:center;font-size:1.1rem}.nav-item:hover,.nav-item.active{background:rgba(51,175,228,.1);color:#fff}.nav-item.active{box-shadow:inset 3px 0 var(--blue)}.sidebar-foot{display:grid;grid-template-columns:38px 1fr 44px;align-items:center;gap:10px;margin-top:auto;padding-top:18px;border-top:1px solid var(--border)}.avatar{display:grid;width:38px;height:38px;place-items:center;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--pink));font-size:.75rem;font-weight:800}.sidebar-foot strong,.sidebar-foot span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-foot strong{font-size:.83rem}.sidebar-foot span{color:var(--muted);font-size:.72rem;text-transform:capitalize}.content{margin-left:244px;padding:40px clamp(24px,4vw,56px) 64px}.page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:24px}.page-header .muted{margin-bottom:0}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:30px 0}.stats article{display:flex;align-items:center;gap:14px;min-width:0;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:18px}.stats strong,.stats span{display:block}.stats strong{font:700 1.45rem var(--font-title)}.stats article div span{color:var(--muted);font-size:.78rem}.stat-icon{display:grid;width:40px;height:40px;flex:0 0 auto;place-items:center;border-radius:10px}.stat-icon.blue{background:rgba(51,175,228,.13);color:var(--blue)}.stat-icon.green{background:rgba(80,198,168,.13);color:var(--green)}.stat-icon.yellow{background:rgba(255,199,9,.13);color:var(--yellow)}.stat-icon.pink{background:rgba(234,14,108,.13);color:#ff5a9c}.library-panel{overflow:hidden;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:20px 22px;border-bottom:1px solid var(--border)}.panel-heading>div:first-child{display:flex;align-items:baseline;gap:10px}.panel-heading h2{margin:0}.panel-heading .muted{font-size:.8rem}.toolbar{display:flex;gap:10px}.toolbar select{width:150px}.search{position:relative;width:min(310px,30vw)}.search span[aria-hidden]{position:absolute;left:13px;top:9px;color:var(--muted);font-size:1.15rem}.search input{padding-left:38px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;text-align:left}th{padding:12px 16px;color:var(--muted);font-size:.69rem;letter-spacing:.1em;text-transform:uppercase}td{padding:13px 16px;border-top:1px solid rgba(255,255,255,.07);vertical-align:middle}tbody tr:hover{background:rgba(255,255,255,.025)}.course-cell{display:grid;grid-template-columns:72px minmax(170px,1fr);align-items:center;gap:13px}.course-thumb{width:72px;height:44px;border:1px solid var(--border);border-radius:7px;background:linear-gradient(135deg,rgba(51,175,228,.4),rgba(234,14,108,.35));object-fit:cover}.course-cell strong,.course-cell span{display:block}.course-cell strong{overflow:hidden;max-width:390px;text-overflow:ellipsis;white-space:nowrap;font-size:.88rem}.course-cell span{color:var(--muted);font-size:.75rem}.table-meta{max-width:190px;color:rgba(255,255,255,.72);font-size:.8rem}.pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:5px 9px;font-size:.71rem;font-weight:700;text-transform:capitalize}.pill:before{width:6px;height:6px;border-radius:50%;background:currentColor;content:""}.pill.published{background:rgba(80,198,168,.12);color:var(--green)}.pill.draft{background:rgba(255,199,9,.11);color:var(--yellow)}.row-actions{display:flex;justify-content:flex-end;gap:3px}.row-actions a,.row-actions button{display:grid;width:38px;height:38px;place-items:center;border:0;border-radius:8px;background:transparent;color:var(--muted);font-size:1rem;text-decoration:none;cursor:pointer}.row-actions a:hover,.row-actions button:hover{background:rgba(255,255,255,.08);color:#fff}.row-actions .delete:hover{background:rgba(255,93,104,.12);color:var(--danger)}.empty-state{display:grid;min-height:280px;place-items:center;align-content:center;text-align:center;color:var(--muted)}.empty-state p{margin:7px 0}.empty-state h3{margin:13px 0 0;color:var(--text)}.empty-glyph{font-size:2.5rem}
.scrim{position:fixed;inset:0;z-index:40;background:rgba(0,0,0,.64);backdrop-filter:blur(3px)}.drawer{position:fixed;inset:0 0 0 auto;z-index:50;width:min(620px,100%);overflow-y:auto;border-left:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);animation:slideIn .26s cubic-bezier(.4,0,.2,1)}.drawer form{display:flex;min-height:100%;flex-direction:column}.drawer-header{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;padding:22px 28px;border-bottom:1px solid var(--border);background:rgba(20,20,25,.94);backdrop-filter:blur(12px)}.drawer-header h2{margin:0;font-size:1.55rem}.drawer-body{display:grid;gap:28px;padding:28px;overflow-y:auto}.drawer-footer{position:sticky;bottom:0;display:flex;justify-content:flex-end;gap:10px;margin-top:auto;padding:16px 28px;border-top:1px solid var(--border);background:rgba(20,20,25,.95);backdrop-filter:blur(12px)}.form-section{display:grid;gap:16px}.section-heading{display:flex;gap:12px}.section-heading>span{display:grid;width:26px;height:26px;flex:none;place-items:center;border-radius:50%;background:rgba(51,175,228,.14);color:var(--blue);font-size:.75rem;font-weight:800}.section-heading h3{margin:2px 0 2px;font-size:.95rem}.section-heading p{margin:0;color:var(--muted);font-size:.78rem}.dropzone{display:flex;min-height:150px;align-items:center;justify-content:center;flex-direction:column;gap:5px;border:1px dashed rgba(51,175,228,.5);border-radius:12px;background:rgba(51,175,228,.035);text-align:center;cursor:pointer;transition:border-color .18s ease,background .18s ease}.dropzone:hover,.dropzone.dragover{border-color:var(--blue);background:rgba(51,175,228,.08)}.dropzone>span:last-child{color:var(--muted);font-size:.76rem}.upload-glyph{display:grid;width:38px;height:38px;place-items:center;border-radius:10px;background:rgba(51,175,228,.12);color:var(--blue);font-size:1.35rem}.optional-field>span{color:var(--muted);font-weight:400}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field-grid .full{grid-column:1/-1}.thumbnail-picker{display:flex;align-items:center;gap:14px;width:max-content;max-width:100%;cursor:pointer}.thumbnail-picker>img,.thumbnail-picker>span:first-of-type{width:104px;height:64px;border:1px dashed var(--border);border-radius:8px;object-fit:cover}.thumbnail-picker>span:first-of-type{display:grid;place-items:center;background:rgba(255,255,255,.04);color:var(--muted);font-size:1.5rem}.thumbnail-picker strong,.thumbnail-picker small{display:block}.thumbnail-picker small{margin-top:3px;color:var(--muted);font-weight:400}.progress-view{min-height:100%;display:grid;align-content:center;justify-items:center;padding:40px;text-align:center}.processing-mark{display:grid;width:92px;height:92px;place-items:center;margin-bottom:28px;border-radius:24px;background:linear-gradient(135deg,rgba(51,175,228,.13),rgba(234,14,108,.13))}.progress-view h2{font-size:1.65rem}.progress-view p.muted{max-width:360px}.progress-track{width:min(380px,100%);height:8px;margin:18px 0 10px;overflow:hidden;border-radius:99px;background:rgba(255,255,255,.09)}.progress-track span{display:block;width:0;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--blue),var(--pink));transition:width .2s ease}.spinner{display:inline-block;width:22px;height:22px;border:2px solid rgba(255,255,255,.16);border-top-color:var(--blue);border-radius:50%;animation:spin .75s linear infinite}.spinner.large{width:42px;height:42px;border-width:3px}.confirm{position:fixed;inset:0;z-index:70;display:grid;place-items:center;padding:20px;background:rgba(0,0,0,.72);backdrop-filter:blur(3px)}.confirm>div{width:min(420px,100%);border:1px solid var(--border);border-radius:18px;background:var(--surface-2);padding:28px;text-align:center;box-shadow:var(--shadow)}.danger-glyph{display:grid;width:48px;height:48px;place-items:center;margin:0 auto 18px;border-radius:50%;background:rgba(255,93,104,.12);color:var(--danger);font-weight:800}.confirm p{color:var(--muted)}.confirm-actions{display:flex;justify-content:center;gap:10px;margin-top:24px}.toast{position:fixed;right:24px;bottom:24px;z-index:90;max-width:min(420px,calc(100vw - 48px));border:1px solid var(--border);border-radius:12px;background:#f6f7f8;color:#151519;padding:13px 18px;box-shadow:var(--shadow);font-size:.88rem;font-weight:700;animation:toastIn .2s ease}
@keyframes spin{to{transform:rotate(360deg)}}@keyframes slideIn{from{transform:translateX(100%)}to{transform:none}}@keyframes toastIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}
@media(max-width:1050px){.stats{grid-template-columns:repeat(2,1fr)}.panel-heading{align-items:stretch;flex-direction:column}.toolbar{justify-content:space-between}.search{width:100%}}
@media(max-width:760px){.sidebar{position:sticky;top:0;right:0;width:auto;height:68px;flex-direction:row;align-items:center;padding:12px 16px;border-right:0;border-bottom:1px solid var(--border)}.sidebar>a{padding:0}.sidebar img{width:124px}.sidebar nav{display:none}.sidebar-foot{display:flex;margin:0 0 0 auto;padding:0;border:0}.sidebar-foot>div:nth-child(2){display:none}.content{margin-left:0;padding:26px 16px 48px}.page-header{align-items:flex-end}.page-header .muted{display:none}.stats{gap:9px;margin:22px 0}.stats article{padding:13px}.stat-icon{display:none}.panel-heading{padding:16px}.toolbar{flex-direction:column}.toolbar select{width:100%}th:nth-child(2),td:nth-child(2),th:nth-child(3),td:nth-child(3),th:nth-child(4),td:nth-child(4),th:nth-child(6),td:nth-child(6){display:none}.course-cell{grid-template-columns:58px minmax(130px,1fr)}.course-thumb{width:58px;height:38px}td,th{padding:11px 10px}.drawer-body,.drawer-header{padding:22px 18px}.drawer-footer{padding:14px 18px}.field-grid{grid-template-columns:1fr}.field-grid .full{grid-column:auto}}
@media(max-width:440px){.login-card{padding:30px 22px}.page-header{align-items:flex-start;flex-direction:column}.page-header .button{width:100%}.stats{grid-template-columns:1fr 1fr}.row-actions a{display:none}.confirm-actions{flex-direction:column}.confirm-actions .button{width:100%}}
/* Asset source controls */
.field-help{margin:-8px 0 0;color:var(--muted);font-size:.76rem;font-weight:400}.source-panel{display:grid;gap:16px}.source-current{margin:-6px 0 0;padding:9px 11px;border-left:3px solid var(--blue);background:rgba(51,175,228,.07);color:rgba(255,255,255,.76);font-size:.78rem}.asset-type{color:rgba(255,255,255,.82);font-weight:600}