:root{--ink:#173d3b;--muted:#6d8581;--paper:#f6f7f2;--card:#fff;--teal:#087b73;--line:#dce5df;--soft:#e6f0eb;--danger:#a33b3b}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Tahoma,Arial,sans-serif;line-height:1.7}.topbar{height:82px;padding:0 max(24px,calc((100% - 1180px)/2));display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}.brand-mark,.course-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:var(--soft);color:var(--teal);font-size:24px}.brand small,.brand b{display:block}.brand small,.muted,small{font-size:12px;color:var(--muted)}nav{display:flex;gap:24px}nav a,.back{color:var(--teal);text-decoration:none;font-size:14px}.shell{max-width:1180px;margin:auto;padding:56px 24px;min-height:calc(100vh - 140px)}footer{text-align:center;padding:25px;color:var(--muted);font-size:12px;border-top:1px solid var(--line)}.hero,.detail-hero,.admin-head{display:flex;align-items:center;justify-content:space-between;gap:32px;margin-bottom:55px}.hero h1,.admin-head h1{font-size:44px;line-height:1.25;margin:10px 0}.hero p,.admin-head p{color:var(--muted);max-width:600px}.eyebrow{color:var(--teal);font-size:12px;font-weight:bold;letter-spacing:.04em}.hero-stat,.stat{background:var(--ink);color:#fff;border-radius:22px;padding:25px 34px;min-width:150px}.hero-stat strong,.stat strong{display:block;font-size:35px}.section-head{display:flex;align-items:end;justify-content:space-between;margin:30px 0 20px}.section-head h2{margin:4px 0;font-size:23px}.section-head.compact{margin:0 0 16px}.section-head select,.form input{border:1px solid var(--line);background:#fff;border-radius:10px;padding:11px 15px;color:var(--ink);min-width:160px}.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.course-card,.admin-course{position:relative;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;text-decoration:none;color:var(--ink);transition:.18s;display:flex;gap:14px;align-items:flex-start}.course-card:hover,.admin-course:hover{transform:translateY(-3px);box-shadow:0 12px 30px #173d3b12}.course-card h3{margin:3px 0;font-size:18px}.course-card p{margin:0;color:var(--muted);font-size:13px}.card-arrow{margin-right:auto;color:var(--teal)}.course-card>small{position:absolute;bottom:12px;left:20px}.detail-hero{justify-content:flex-start;margin-top:25px}.detail-hero h1{font-size:34px;margin:6px 0}.resource-columns{display:grid;grid-template-columns:1fr 1fr;gap:22px}.panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:25px}.resource-row,.admin-course{display:flex;align-items:center;gap:12px;padding:15px 0;border-top:1px solid var(--line)}.resource-row:first-of-type{border-top:0}.resource-row div,.admin-course div{flex:1}.resource-row strong,.admin-course strong,.resource-row small,.admin-course small{display:block}.resource-icon{color:var(--teal);font-size:22px}.resource-icon.video{color:#c26b5b}.btn{display:inline-block;border:0;border-radius:10px;padding:9px 15px;text-decoration:none;font:inherit;cursor:pointer;font-size:13px}.btn.primary{background:var(--teal);color:#fff}.btn.outline{border:1px solid var(--teal);color:var(--teal);background:#fff}.btn.full{width:100%}.unavailable{color:var(--danger);font-size:12px}.empty{padding:50px;text-align:center;background:#fff;border:1px dashed var(--line);border-radius:18px;color:var(--muted)}.empty h3,.empty h1{color:var(--ink)}.small{padding:25px}.viewer-head{display:flex;justify-content:space-between;align-items:center;margin:25px 0}.viewer-head h1{font-size:25px}.actions{display:flex;gap:10px}.pdf-frame{height:76vh;background:#d9dfdc;border-radius:18px;overflow:hidden;border:1px solid var(--line)}.pdf-frame iframe{width:100%;height:100%;border:0}.auth-layout{display:grid;grid-template-columns:1.3fr .7fr;min-height:620px;background:#fff;border-radius:24px;overflow:hidden}.auth-card{max-width:600px;padding:75px 10%}.auth-card h1{font-size:37px;line-height:1.35}.auth-card p{color:var(--muted)}.auth-rail{background:var(--ink);color:#fff;padding:45px;display:flex;flex-direction:column;justify-content:space-between}.form{display:grid;gap:17px;margin-top:28px}.form label{font-size:13px;font-weight:bold}.form input{display:block;width:100%;margin-top:6px}.notice{padding:12px;border-radius:10px;font-size:13px}.notice.error{background:#fff0ee;color:var(--danger)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-bottom:25px}.stat{background:#fff;color:var(--ink);border:1px solid var(--line)}.admin-list{display:grid;grid-template-columns:1fr 1fr;gap:0 25px}.admin-course b{font-size:12px;color:var(--teal);white-space:nowrap}@media(max-width:800px){.topbar{height:auto;padding:18px 20px;align-items:flex-start;gap:18px}.topbar nav{gap:10px;flex-wrap:wrap;justify-content:flex-end}.hero,.detail-hero,.admin-head,.viewer-head{display:block}.hero h1,.admin-head h1{font-size:32px}.hero-stat{margin-top:20px}.course-grid,.resource-columns,.admin-list,.stats-grid{grid-template-columns:1fr}.section-head{align-items:start;gap:15px}.panel{padding:18px}.resource-row{align-items:flex-start;flex-wrap:wrap}.resource-row .btn,.resource-row .unavailable{margin-right:38px}.auth-layout{display:block}.auth-rail{min-height:150px}.auth-card{padding:40px 25px}.auth-card h1{font-size:28px}.actions{margin-top:15px;flex-wrap:wrap}.pdf-frame{height:65vh}}
.admin-columns{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-bottom:25px}.admin-course a{color:var(--ink);text-decoration:none}.admin-course form{margin:0}.btn.danger{background:#fff0ee;color:var(--danger);border:1px solid #f0cbc5}.form select{display:block;width:100%;margin-top:6px;border:1px solid var(--line);background:#fff;border-radius:10px;padding:11px 15px;color:var(--ink)}@media(max-width:800px){.admin-columns{grid-template-columns:1fr}}

.ajax-status{position:fixed;bottom:1.25rem;left:1.25rem;z-index:20;opacity:0;transform:translateY(.5rem);pointer-events:none;background:#0c6b68;color:#fff;border-radius:999px;padding:.75rem 1.1rem;box-shadow:0 12px 30px #123b3626;transition:opacity .2s ease,transform .2s ease}.ajax-status.is-visible{opacity:1;transform:translateY(0)}.ajax-status.is-error{background:#a33b3b}button:disabled{cursor:wait;opacity:.65}

/* Catalog search */
.catalog-search{display:flex;align-items:center;gap:10px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 8px 24px #173d3b08;margin:0 0 30px}.search-input{display:flex;align-items:center;gap:8px;flex:1;min-width:0;color:var(--teal);font-size:25px}.search-input input{width:100%;border:0;outline:0;background:transparent;color:var(--ink);font:inherit;font-size:14px}.catalog-search select{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:10px;padding:10px 12px;font:inherit;font-size:13px}.catalog-search .btn{white-space:nowrap}.catalog-search .btn:active{transform:scale(.97)}
/* Public catalog refresh */
.brand-logo-wrap{width:46px;height:46px;border-radius:14px;background:#fff;display:grid;place-items:center;overflow:hidden;box-shadow:0 6px 18px #102f2c18;flex:0 0 auto}.brand-logo{width:40px;height:40px;object-fit:contain}.brand{gap:11px}.portal-hero{margin-bottom:34px}.catalog-section{margin-top:24px}.section-note{color:var(--muted);font-size:13px}.term-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.term-card{position:relative;min-height:176px;padding:28px;background:linear-gradient(135deg,#fff 0%,#edf6f3 100%);border:1px solid var(--line);border-radius:22px;text-decoration:none;color:var(--ink);display:flex;align-items:center;gap:22px;overflow:hidden;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}.term-card:before{content:"";position:absolute;inset:auto -35px -55px auto;width:190px;height:190px;border-radius:50%;background:#0c6b6812}.term-card:hover{transform:translateY(-3px);border-color:#84bdb4;box-shadow:0 18px 34px #173d3b12}.term-card .eyebrow{display:block}.term-card h2{margin:5px 0 7px;font-size:31px}.term-card p{margin:0;color:var(--muted)}.term-number{z-index:1;width:64px;height:64px;border-radius:18px;background:var(--teal);color:#fff;display:grid;place-items:center;font-size:24px;font-weight:800;box-shadow:0 10px 22px #0c6b6830}.catalog-toolbar{display:flex;justify-content:space-between;align-items:center;gap:18px;margin:22px 0 10px}.term-switcher{display:flex;gap:8px;flex-wrap:wrap}.term-pill{padding:8px 13px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:var(--muted);font-size:13px;background:#fff}.term-pill:hover,.term-pill.active{background:var(--teal);border-color:var(--teal);color:#fff}.course-card{min-height:194px}.course-card-body{min-width:0;flex:1}.course-card-body .muted{font-size:12px;color:var(--teal);font-weight:700}.course-counts{display:flex;gap:7px;flex-wrap:wrap;margin-top:16px}.count-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 9px;border-radius:999px;font-size:11px;font-weight:700;white-space:nowrap}.count-chip.lesson{background:#e7f4f1;color:#0c6b68}.count-chip.recording{background:#fff0ed;color:#a34d42}.count-chip>span{font-size:13px}.course-icon.large{width:62px;height:62px;font-size:29px}.detail-counts{margin-top:17px}.resource-row .btn{white-space:nowrap}.viewer-head p{margin:6px 0;color:var(--muted)}footer{display:flex;justify-content:center;gap:20px;flex-wrap:wrap}@media(max-width:800px){.catalog-search{align-items:stretch;flex-wrap:wrap}.search-input{flex-basis:100%;height:42px}.catalog-search select{flex:1}.catalog-search .btn{flex:0 0 auto}.term-grid{grid-template-columns:1fr}.term-card{min-height:148px;padding:22px}.term-card h2{font-size:27px}.catalog-toolbar{display:block}.term-switcher{margin-top:14px}.course-card{min-height:0}.brand-logo-wrap{width:40px;height:40px}.brand-logo{width:35px;height:35px}}

/* Professional admin workspace */
.admin-workspace{display:grid;grid-template-columns:240px minmax(0,1fr);gap:28px;direction:ltr}.admin-sidebar{direction:rtl;background:var(--ink);color:#fff;border-radius:24px;padding:22px 16px;min-height:calc(100vh - 150px);display:flex;flex-direction:column;position:sticky;top:24px;align-self:start}.admin-side-brand{display:flex;align-items:center;gap:10px;padding:4px 6px 25px;border-bottom:1px solid #ffffff1c}.admin-side-brand strong,.admin-side-brand small{display:block}.admin-side-brand small{color:#b8d2cd;font-size:10px;margin-top:3px}.admin-sidebar .brand-logo-wrap{width:40px;height:40px}.admin-sidebar .brand-logo{width:34px;height:34px}.admin-nav{display:grid;gap:7px;padding-top:22px}.admin-nav-item{border:0;background:transparent;color:#c5d8d4;font:inherit;text-align:right;padding:12px 13px;border-radius:12px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:.18s}.admin-nav-item span{font-size:18px;color:#8eb4ad}.admin-nav-item:hover,.admin-nav-item.active{background:#ffffff14;color:#fff}.admin-nav-item.active{box-shadow:inset -3px 0 var(--accent)}.admin-side-footer{margin-top:auto;border-top:1px solid #ffffff1c;padding-top:18px;display:grid;gap:10px}.admin-side-footer a{color:#b8d2cd;text-decoration:none;font-size:12px;padding:5px}.admin-side-footer a:hover{color:#fff}.admin-main{direction:rtl;min-width:0}.admin-topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:28px}.admin-topbar h1{font-size:30px;margin:7px 0}.admin-topbar p{margin:0;color:var(--muted)}.admin-top-actions{display:flex;align-items:center;gap:12px}.admin-status{background:#e8f6f0;color:#187465;border-radius:999px;padding:8px 12px;font-size:11px;white-space:nowrap}.admin-status i{display:inline-block;width:7px;height:7px;border-radius:50%;background:#2ca775;margin-left:5px}.admin-section{display:none}.admin-section.active{display:block;animation:adminFade .18s ease-out}@keyframes adminFade{from{opacity:.3;transform:translateY(4px)}to{opacity:1;transform:none}}.admin-stats{grid-template-columns:repeat(4,1fr);margin-bottom:24px}.stat-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;display:flex;align-items:center;gap:13px;box-shadow:0 8px 25px #173d3b08}.stat-icon{width:42px;height:42px;border-radius:13px;background:#e7f4f1;color:var(--teal);display:grid;place-items:center;font-size:21px}.stat-card small,.stat-card strong,.stat-card span{display:block}.stat-card small{font-size:11px;color:var(--muted)}.stat-card strong{font-size:27px;line-height:1.25}.stat-card span:last-child{font-size:11px;color:var(--teal);font-weight:700}.admin-welcome{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px;background:linear-gradient(135deg,#fff,#eef8f5)}.admin-welcome h2{margin:7px 0;font-size:23px}.admin-welcome p{color:var(--muted);margin:0;max-width:620px}.quick-actions{display:flex;gap:8px;flex-wrap:wrap}.admin-overview-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}.mini-row,.audit-row{display:flex;align-items:flex-start;gap:10px;padding:13px 0;border-top:1px solid var(--line)}.mini-row:first-of-type{border-top:0}.mini-row strong,.mini-row small,.audit-row strong,.audit-row small{display:block}.mini-row small,.audit-row small{color:var(--muted);font-size:11px;margin-top:3px}.timeline-dot{width:9px;height:9px;flex:0 0 auto;border-radius:50%;background:var(--accent);margin-top:5px;box-shadow:0 0 0 4px #b9dcd455}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;margin:5px 0 24px}.section-heading h2{font-size:25px;margin:7px 0}.section-heading p{color:var(--muted);margin:0;font-size:13px}.text-link{border:0;background:transparent;color:var(--teal);font:inherit;font-size:12px;cursor:pointer}.admin-course-list{display:grid;gap:10px}.admin-course-row{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:15px 17px;box-shadow:0 5px 18px #173d3b06}.admin-course-row .course-icon{flex:0 0 auto}.admin-course-info{flex:1;min-width:0}.admin-course-info strong,.admin-course-info small{display:block}.admin-course-info strong{font-size:15px}.admin-course-info small{color:var(--muted);font-size:11px;margin-top:4px}.row-meta{display:flex;gap:12px;color:var(--teal);font-size:11px;margin-top:9px}.resource-total{color:var(--teal);font-weight:800;font-size:16px;white-space:nowrap}.resource-total small{font-weight:400;font-size:10px}.icon-action{border:0;width:31px;height:31px;border-radius:9px;cursor:pointer;font-size:20px;line-height:1}.icon-action.danger{background:#fff0ee;color:var(--danger)}.resource-table{padding:0;overflow:hidden}.resource-table-head,.resource-table-row{display:grid;grid-template-columns:minmax(190px,1.7fr) minmax(130px,1fr) 100px 85px;align-items:center;gap:15px;padding:15px 18px}.resource-table-head{background:#f4f9f7;color:var(--muted);font-size:11px;font-weight:700}.resource-table-row{border-top:1px solid var(--line);font-size:12px}.resource-title{display:flex;align-items:center;gap:9px;min-width:0}.resource-title strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.kind-badge{background:#e7f4f1;color:var(--teal);padding:5px 8px;border-radius:999px;font-size:10px;width:max-content}.admin-modal{border:0;border-radius:20px;padding:0;width:min(560px,calc(100% - 28px));box-shadow:0 25px 80px #092b2940;color:var(--ink)}.admin-modal::backdrop{background:#092b2966;backdrop-filter:blur(3px)}.admin-modal .form{padding:0 25px 25px}.modal-head{display:flex;justify-content:space-between;align-items:flex-start;padding:22px 25px 0}.modal-head h2{font-size:21px;margin:6px 0 0}.modal-close{border:0;background:#f1f6f4;color:var(--ink);width:31px;height:31px;border-radius:9px;cursor:pointer;font-size:22px}.modal-actions{display:flex;justify-content:flex-start;gap:9px;padding-top:4px}.full{width:100%}@media(max-width:1050px){.admin-workspace{grid-template-columns:190px minmax(0,1fr)}.admin-stats{grid-template-columns:repeat(2,1fr)}}@media(max-width:800px){.admin-workspace{display:block}.admin-sidebar{position:static;min-height:0;margin-bottom:20px;padding:15px}.admin-side-brand{padding-bottom:14px}.admin-nav{display:flex;overflow:auto;padding-top:14px;gap:5px}.admin-nav-item{white-space:nowrap;font-size:12px;padding:10px}.admin-nav-item span{display:none}.admin-side-footer{display:flex;justify-content:space-between;border:0;padding-top:12px;margin-top:8px}.admin-topbar{display:block}.admin-topbar h1{font-size:25px}.admin-top-actions{margin-top:16px;justify-content:space-between}.admin-welcome,.admin-overview-grid{display:block}.admin-welcome .quick-actions{margin-top:20px}.admin-overview-grid .panel{margin-top:18px}.section-heading{display:block}.section-heading .btn,.section-heading .quick-actions{margin-top:16px}.admin-course-row{align-items:flex-start;flex-wrap:wrap}.admin-course-row .admin-course-info{min-width:calc(100% - 60px)}.resource-total{margin-right:55px}.resource-table-head{display:none}.resource-table-row{grid-template-columns:1fr auto;gap:8px}.resource-table-row>span:nth-child(2){grid-column:1}.resource-table-row>span:nth-child(3){grid-column:2;grid-row:1}.resource-table-row>form,.resource-table-row>a{grid-column:2}.resource-table-row .resource-title{grid-column:1}.admin-modal .form{padding:0 18px 18px}.modal-head{padding:18px 18px 0}}

/* Per-course administration */
.course-admin-top{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:28px}.course-admin-top h1{font-size:34px;margin:8px 0}.course-admin-top p{color:var(--muted);margin:0}.course-admin-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:28px}.course-admin-stats{grid-template-columns:repeat(3,1fr);margin-bottom:22px}.course-admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:22px}.course-resource-panel{margin-bottom:22px}.course-resource-columns{display:grid;grid-template-columns:1fr 1fr;gap:25px}.resource-group-title{font-size:15px;margin:0 0 10px;display:flex;justify-content:space-between}.resource-group-title span{background:#e7f4f1;color:var(--teal);border-radius:999px;padding:3px 9px;font-size:11px}.managed-resource{display:flex;align-items:center;gap:10px;padding:13px 0;border-top:1px solid var(--line)}.managed-resource>div:nth-child(2){flex:1;min-width:0}.managed-resource strong,.managed-resource small{display:block}.managed-resource strong{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.managed-resource small{font-size:10px;color:var(--muted);margin-top:4px}.managed-actions{display:flex;gap:5px;align-items:center}.managed-actions .btn{padding:7px 10px;font-size:11px}.inline-resource-form{display:grid;grid-template-columns:1fr 150px 1.4fr auto;align-items:end;gap:12px}.inline-resource-form label{font-size:12px;font-weight:700}.inline-resource-form input,.inline-resource-form select{display:block;width:100%;margin-top:6px;border:1px solid var(--line);background:#fff;border-radius:10px;padding:11px 13px;color:var(--ink);font:inherit}.inline-resource-form .btn{height:42px;white-space:nowrap}.course-admin-page .back{display:block;margin-bottom:18px}.course-admin-page .section-head p{font-size:12px;color:var(--muted);margin:5px 0 0}@media(max-width:800px){.course-admin-top{display:block}.course-admin-top h1{font-size:27px}.course-admin-actions{margin-top:18px}.course-admin-stats{grid-template-columns:1fr}.course-admin-grid,.course-resource-columns{grid-template-columns:1fr}.managed-resource{align-items:flex-start;flex-wrap:wrap}.managed-actions{margin-right:31px}.inline-resource-form{grid-template-columns:1fr}.inline-resource-form .btn{width:100%}}

/* Source editing, ordering and PDF preview */
.drag-number{width:26px;height:26px;display:grid;place-items:center;border-radius:8px;background:#e7f4f1;color:var(--teal);font-weight:800;font-size:12px;flex:0 0 auto}.drag-handle{cursor:grab;color:#8b969a;font-size:20px;line-height:1;user-select:none}.managed-resource.is-dragging{opacity:.45;background:#f1f7f5}.managed-resource[draggable=true]{transition:background .18s,transform .18s}.managed-resource[draggable=true]:hover{background:#fbfdfc}.resource-edit{position:relative}.resource-edit summary{cursor:pointer;border:1px solid var(--line);border-radius:8px;padding:6px 9px;color:var(--teal);font-size:11px;list-style:none}.resource-edit summary::-webkit-details-marker{display:none}.resource-edit-form{position:absolute;z-index:5;top:36px;right:0;width:260px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;box-shadow:0 16px 35px rgba(18,51,49,.16);display:grid;gap:8px}.resource-edit-form label{font-size:11px;font-weight:700}.resource-edit-form input,.resource-edit-form select{display:block;width:100%;margin-top:4px;border:1px solid var(--line);border-radius:7px;padding:7px 8px;font:inherit;font-size:11px}.pdf-upload-preview{width:100%;height:220px;border:1px solid var(--line);border-radius:10px;background:#f6f8f7;margin-top:4px}.section-helper{color:var(--muted);font-size:12px}.course-resource-columns>div{min-width:0}@media(max-width:800px){.resource-edit-form{position:fixed;left:16px;right:16px;top:20%;width:auto}.pdf-upload-preview{height:180px}.drag-handle{font-size:18px}}