/* LEQ V12.6.3 Tutorial Studio / Reader professional layout */
:root{--leq-tut-ink:#111827;--leq-tut-muted:#64748b;--leq-tut-line:#e5e7eb;--leq-tut-soft:#f8fafc;--leq-tut-accent:#4f46e5;--leq-tut-green:#12b76a;--leq-tut-shadow:0 16px 42px rgba(15,23,42,.07)}

/* -------------------------
   SUPER ADMIN TUTORIAL STUDIO
   ------------------------- */
.tutorial-admin-topbar{max-width:none!important;display:flex!important;justify-content:space-between!important;align-items:center!important;gap:22px!important;margin:0 0 18px!important;padding:22px 24px!important;border:1px solid #e2e8f0!important;border-radius:20px!important;background:linear-gradient(135deg,#ffffff 0%,#f8faff 100%)!important;box-shadow:0 12px 30px rgba(15,23,42,.04)!important}
.tutorial-admin-topbar h1{margin:4px 0 6px!important;font-size:34px!important;line-height:1.05!important;letter-spacing:-.035em!important}.tutorial-admin-topbar p{margin:0!important;color:#64748b!important;max-width:760px!important;font-size:13px!important;line-height:1.55!important}.tutorial-admin-top-actions{display:flex!important;gap:9px!important;flex-wrap:wrap!important}
.tutorial-admin-stats{display:grid!important;grid-template-columns:repeat(4,minmax(0,1fr))!important;gap:12px!important;margin-bottom:16px!important}.tutorial-admin-stats .stat-card{min-width:0!important}
.tutorial-admin-layout{display:grid!important;gap:16px!important;width:100%!important;max-width:none!important}
.tutorial-admin-accordion{display:block!important;border:1px solid #e2e8f0!important;border-radius:18px!important;background:#fff!important;overflow:hidden!important;box-shadow:0 8px 24px rgba(15,23,42,.035)!important}
.tutorial-admin-accordion>summary{list-style:none!important;display:flex!important;align-items:center!important;justify-content:space-between!important;gap:16px!important;padding:16px 18px!important;cursor:pointer!important;background:#fff!important;min-height:72px!important}.tutorial-admin-accordion>summary::-webkit-details-marker{display:none!important}.tutorial-admin-accordion>summary>div{display:flex!important;align-items:center!important;gap:12px!important;min-width:0!important}.tutorial-admin-accordion>summary b{display:block!important;font-size:16px!important;color:#111827!important}.tutorial-admin-accordion>summary small{display:block!important;color:#64748b!important;font-size:11px!important;margin-top:3px!important}.tutorial-admin-accordion[open]>summary{background:#f8fafc!important;border-bottom:1px solid #e5e7eb!important}.summary-icon{width:42px!important;height:42px!important;border-radius:12px!important;display:grid!important;place-items:center!important;background:#eef2ff!important;color:#4338ca!important;flex:none!important}.summary-meta{display:inline-flex!important;align-items:center!important;gap:6px!important;padding:6px 10px!important;border-radius:999px!important;background:#f1f5f9!important;color:#475569!important;font-size:11px!important;font-weight:800!important;white-space:nowrap!important}.accordion-body{padding:18px!important;background:#fff!important}
.tutorial-master-form,.tutorial-rights-grid .panel{border:1px solid #e5e7eb!important;border-radius:16px!important;background:#fbfdff!important;padding:16px!important}.tutorial-master-form .form-grid{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:13px!important}.tutorial-master-form .field.full{grid-column:1/-1!important}
.subject-master-grid{display:grid!important;grid-template-columns:repeat(4,minmax(0,1fr))!important;gap:10px!important;margin-top:16px!important}.subject-master-card{display:grid!important;grid-template-columns:50px minmax(0,1fr) auto!important;align-items:center!important;gap:11px!important;padding:11px!important;border:1px solid #e2e8f0!important;border-radius:14px!important;background:#fff!important;min-width:0!important;transition:.18s ease!important}.subject-master-card:hover{transform:translateY(-1px)!important;border-color:#c7d2fe!important;box-shadow:0 8px 22px rgba(79,70,229,.07)!important}.subject-master-icon,.subject-master-thumb{width:50px!important;height:50px!important;border-radius:12px!important;flex:none!important}.subject-master-icon{display:grid!important;place-items:center!important;background:linear-gradient(135deg,#111827,#334155)!important;color:#fff!important;font-size:12px!important;font-weight:900!important}.subject-master-thumb{object-fit:cover!important;border:1px solid #e5e7eb!important;background:#fff!important}.subject-master-copy{display:flex!important;flex-direction:column!important;min-width:0!important}.subject-master-copy b{display:block!important;font-size:13px!important;white-space:nowrap!important;overflow:hidden!important;text-overflow:ellipsis!important}.subject-master-copy span{font-size:10px!important;color:#64748b!important;margin-top:2px!important}.subject-master-copy small{font-size:9px!important;color:#4f46e5!important;font-weight:800!important;margin-top:4px!important}.subject-master-card .btn{padding:7px 9px!important;font-size:10px!important}
.tutorial-rights-grid{display:grid!important;grid-template-columns:minmax(300px,.8fr) minmax(360px,1.2fr)!important;gap:14px!important}.assignment-stack{display:grid!important;gap:8px!important}.assignment-card{display:flex!important;align-items:center!important;justify-content:space-between!important;gap:12px!important;padding:11px 13px!important;border:1px solid #e5e7eb!important;border-radius:12px!important;background:#fff!important}.assignment-card>div{display:flex!important;flex-direction:column!important;min-width:0!important}.assignment-card b{font-size:12px!important}.assignment-card span,.assignment-card small{font-size:10px!important;color:#64748b!important}
.tutorial-editor-panel{padding:20px!important;border-radius:18px!important;border:1px solid #e2e8f0!important;box-shadow:0 10px 28px rgba(15,23,42,.035)!important}.tutorial-editor-panel .panel-head{display:flex!important;align-items:flex-start!important;justify-content:space-between!important;gap:12px!important;margin-bottom:12px!important}.tutorial-editor-panel .panel-head h2{font-size:24px!important;margin:2px 0 4px!important}.tutorial-editor-panel .panel-head p{font-size:11px!important;color:#64748b!important}.tutorial-editor-note{padding:11px 13px!important;border:1px solid #c7d2fe!important;background:#eef2ff!important;border-radius:12px!important;color:#3730a3!important;font-size:11px!important;margin-bottom:14px!important}.tutorial-admin-editor .form-grid{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:13px!important}.tutorial-admin-editor .field.full{grid-column:1/-1!important}.tutorial-admin-editor input,.tutorial-admin-editor select,.tutorial-admin-editor textarea,.tutorial-list-toolbar input,.tutorial-list-toolbar select{width:100%!important;border:1px solid #dbe2ea!important;border-radius:12px!important;background:#fff!important;padding:11px 12px!important;color:#111827!important;outline:none!important}.tutorial-admin-editor input:focus,.tutorial-admin-editor select:focus,.tutorial-admin-editor textarea:focus,.tutorial-list-toolbar input:focus,.tutorial-list-toolbar select:focus{border-color:#818cf8!important;box-shadow:0 0 0 3px rgba(99,102,241,.10)!important}
.leq-rich-editor{border:1px solid #dfe5ed!important;border-radius:16px!important;overflow:hidden!important;background:#fff!important}.rich-toolbar{display:flex!important;gap:6px!important;align-items:center!important;flex-wrap:wrap!important;padding:9px 10px!important;background:#f8fafc!important;border-bottom:1px solid #e5e7eb!important;position:sticky!important;top:0!important;z-index:4!important}.rich-toolbar button,.rich-toolbar select{height:36px!important;min-width:36px!important;border:1px solid #dce3eb!important;border-radius:9px!important;background:#fff!important;color:#1f2937!important;font-weight:800!important;cursor:pointer!important}.rich-canvas{min-height:470px!important;padding:28px 32px!important;font-size:16px!important;line-height:1.75!important;outline:none!important}.rich-canvas:focus{box-shadow:inset 0 0 0 2px rgba(99,102,241,.14)!important}.rich-editor-foot{display:flex!important;justify-content:space-between!important;gap:10px!important;padding:9px 12px!important;border-top:1px solid #e5e7eb!important;background:#fbfdff!important;color:#64748b!important;font-size:10px!important}
.tutorial-list-accordion>summary{background:linear-gradient(135deg,#fff,#f8fafc)!important}.tutorial-list-toolbar{display:grid!important;grid-template-columns:190px 160px minmax(240px,1fr) auto!important;gap:10px!important;align-items:end!important;margin-bottom:14px!important;padding:12px!important;border:1px solid #e5e7eb!important;border-radius:14px!important;background:#f8fafc!important}.tutorial-list-toolbar .field{margin:0!important}.tutorial-list-toolbar label{display:block!important;margin-bottom:5px!important;font-size:10px!important;color:#475569!important;font-weight:800!important}.tutorial-admin-cards{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:11px!important}.tutorial-admin-card{display:grid!important;grid-template-columns:minmax(0,1fr)!important;gap:12px!important;padding:15px!important;border:1px solid #e2e8f0!important;border-radius:15px!important;background:#fff!important;min-width:0!important;box-shadow:none!important}.tutorial-admin-card:hover{border-color:#c7d2fe!important;box-shadow:0 9px 24px rgba(15,23,42,.05)!important}.tutorial-card-main{min-width:0!important}.tutorial-card-title-row{display:flex!important;align-items:flex-start!important;justify-content:space-between!important;gap:10px!important}.tutorial-card-title-row h3{font-size:17px!important;line-height:1.25!important;margin:5px 0 3px!important}.tutorial-card-subject{font-size:9px!important;letter-spacing:.08em!important;text-transform:uppercase!important;font-weight:900!important;color:#4f46e5!important}.tutorial-card-main p{margin:6px 0 9px!important;color:#64748b!important;font-size:11px!important;line-height:1.5!important}.tutorial-card-meta{display:flex!important;gap:6px!important;flex-wrap:wrap!important}.tutorial-card-meta span{display:inline-flex!important;padding:4px 7px!important;border-radius:999px!important;background:#f1f5f9!important;color:#475569!important;font-size:9px!important}.tutorial-card-actions{display:grid!important;grid-template-columns:auto 1fr auto!important;gap:8px!important;align-items:start!important;padding-top:11px!important;border-top:1px solid #eef2f7!important}.tutorial-review-form{display:grid!important;grid-template-columns:minmax(140px,1fr) auto!important;gap:7px!important;min-width:0!important}.tutorial-review-form>input{width:100%!important;border:1px solid #dbe2ea!important;border-radius:9px!important;padding:8px 9px!important;font-size:10px!important}.tutorial-review-form .action-row{display:flex!important;gap:5px!important;flex-wrap:nowrap!important}.tutorial-card-actions .btn{padding:8px 10px!important;font-size:10px!important}

/* -------------------------
   PUBLIC TUTORIAL READER: strict 3-column desktop layout
   ------------------------- */
.tutorial-public{background:#f4f6f9!important;min-height:calc(100vh - 74px)!important;padding:0!important}.tutorial-shell{width:min(1620px,calc(100% - 28px))!important;max-width:none!important;margin:0 auto!important;display:grid!important;grid-template-columns:270px minmax(0,1fr) 300px!important;gap:18px!important;padding:18px 0 46px!important;align-items:start!important}.tutorial-toc{grid-column:1!important;position:sticky!important;top:92px!important;height:calc(100vh - 112px)!important;background:#fff!important;border:1px solid #e2e8f0!important;border-radius:17px!important;overflow:hidden!important;align-self:start!important;box-shadow:0 8px 24px rgba(15,23,42,.04)!important}.tutorial-subject-head{display:grid!important;grid-template-columns:60px minmax(0,1fr)!important;gap:12px!important;align-items:center!important;padding:14px!important;background:linear-gradient(135deg,#0f172a,#1e293b)!important;color:#fff!important;border-bottom:1px solid #233044!important}.tutorial-subject-head img,.tutorial-subject-symbol{width:60px!important;height:60px!important;border-radius:13px!important;object-fit:cover!important;background:#fff!important;display:grid!important;place-items:center!important;color:#0f172a!important;font-weight:900!important;font-size:18px!important;border:1px solid rgba(255,255,255,.18)!important}.tutorial-subject-head div{display:flex!important;flex-direction:column!important;min-width:0!important}.tutorial-subject-head span{font-size:9px!important;text-transform:uppercase!important;letter-spacing:.12em!important;color:#cbd5e1!important}.tutorial-subject-head strong{font-size:17px!important;line-height:1.15!important;margin-top:3px!important}.toc-scroll{height:calc(100% - 89px)!important;overflow:auto!important}.toc-all,.toc-link{display:flex!important;align-items:center!important;gap:9px!important;padding:11px 13px!important;border-bottom:1px solid #eef2f7!important;color:#334155!important;text-decoration:none!important;font-size:13px!important;line-height:1.35!important}.toc-all{font-weight:800!important;background:#f8fafc!important}.toc-link:hover{background:#f8fafc!important}.toc-link.active{background:#ecfdf3!important;color:#111827!important;font-weight:850!important}.toc-dot{width:7px!important;height:7px!important;border-radius:999px!important;background:#cbd5e1!important;flex:none!important}.toc-link.active .toc-dot{background:#22c55e!important}
.tutorial-article{grid-column:2!important;min-width:0!important}.article-surface{background:#fff!important;border:1px solid #e2e8f0!important;border-radius:18px!important;padding:30px 36px!important;box-shadow:var(--leq-tut-shadow)!important;min-height:620px!important}.article-breadcrumb{display:flex!important;gap:7px!important;align-items:center!important;flex-wrap:wrap!important;font-size:11px!important;color:#64748b!important;margin-bottom:12px!important}.article-breadcrumb a{color:#4f46e5!important;font-weight:800!important}.article-title-row{display:block!important}.article-title-row h1{font-size:clamp(30px,3vw,46px)!important;line-height:1.08!important;letter-spacing:-.035em!important;margin:9px 0 10px!important;color:#0f172a!important}.article-summary{font-size:16px!important;line-height:1.65!important;color:#64748b!important;margin:0 0 24px!important;max-width:820px!important}.rich-tutorial{font-size:16px!important;line-height:1.78!important;color:#273244!important}.rich-tutorial h1,.rich-tutorial h2,.rich-tutorial h3,.rich-tutorial h4{color:#0f172a!important;letter-spacing:-.02em!important}.rich-tutorial h2{font-size:27px!important;margin:1.4em 0 .55em!important;padding-top:23px!important;border-top:1px solid #eef2f7!important}.rich-tutorial h3{font-size:21px!important}.rich-tutorial ul,.rich-tutorial ol{padding-left:24px!important}.rich-tutorial li{padding:3px 0!important}.rich-tutorial img{max-width:100%!important;height:auto!important;border-radius:14px!important}.tutorial-code-card{border-radius:15px!important;overflow:hidden!important;margin:22px 0!important}.tutorial-code-card pre{padding:24px!important;font-size:13px!important}.tutorial-pager{display:grid!important;grid-template-columns:1fr 1fr!important;gap:12px!important;margin-top:34px!important;padding-top:20px!important;border-top:1px solid #eef2f7!important}.pager-card{padding:14px!important;border:1px solid #e2e8f0!important;border-radius:13px!important;background:#f8fafc!important}
.tutorial-side{grid-column:3!important;display:flex!important;flex-direction:column!important;gap:10px!important;position:sticky!important;top:92px!important;align-self:start!important;min-width:0!important}.tutorial-ad{padding:9px!important;background:#fff!important;border:1px solid #e2e8f0!important;border-radius:16px!important;overflow:hidden!important;box-shadow:0 8px 24px rgba(15,23,42,.035)!important}.tutorial-ad>span{display:block!important;padding:1px 4px 7px!important;font-size:8px!important;letter-spacing:.12em!important;text-transform:uppercase!important;color:#94a3b8!important;font-weight:800!important}.tutorial-ad img{display:block!important;width:100%!important;max-height:220px!important;object-fit:cover!important;border-radius:11px!important}.side-card{display:grid!important;grid-template-columns:42px minmax(0,1fr)!important;grid-template-areas:'icon title' 'icon copy' 'icon action'!important;column-gap:11px!important;row-gap:3px!important;padding:14px!important;border:1px solid #e2e8f0!important;border-radius:15px!important;background:#fff!important;box-shadow:0 8px 24px rgba(15,23,42,.035)!important}.side-card .side-icon{grid-area:icon!important;width:42px!important;height:42px!important;border-radius:12px!important;display:grid!important;place-items:center!important;background:#eef2ff!important;color:#4338ca!important;font-size:18px!important;font-weight:900!important}.side-card h3{grid-area:title!important;margin:1px 0 0!important;font-size:14px!important;line-height:1.2!important}.side-card p{grid-area:copy!important;margin:2px 0 4px!important;color:#64748b!important;font-size:11px!important;line-height:1.45!important}.side-card>a{grid-area:action!important;justify-self:start!important;margin-top:2px!important}.side-card .btn.small{padding:8px 10px!important;font-size:10px!important;border-radius:9px!important}.side-card .text-link{font-size:11px!important;font-weight:850!important;color:#4f46e5!important}.advertise-card{border-style:dashed!important;background:linear-gradient(135deg,#fff,#faf9ff)!important}

/* Public Tutorials index cards */
.subject-grid{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr))!important;gap:14px!important}.v126-subject-card{display:grid!important;grid-template-columns:78px minmax(0,1fr)!important;align-items:start!important;gap:14px!important;padding:16px!important;border:1px solid #e2e8f0!important;border-radius:16px!important;background:#fff!important;box-shadow:0 8px 22px rgba(15,23,42,.035)!important}.subject-cover,.v126-subject-card .initial{width:78px!important;height:78px!important;border-radius:15px!important;object-fit:cover!important}.v126-subject-card .initial{display:grid!important;place-items:center!important;background:#111827!important;color:#fff!important;font-weight:900!important;font-size:22px!important}.v126-subject-card h3{margin:7px 0 5px!important;font-size:17px!important}.v126-subject-card p{margin:0 0 9px!important;color:#64748b!important;font-size:11px!important;line-height:1.5!important}.v126-subject-card .meta{display:flex!important;gap:6px!important;flex-wrap:wrap!important;font-size:9px!important;color:#475569!important}

@media(max-width:1450px){.subject-master-grid{grid-template-columns:repeat(3,minmax(0,1fr))!important}.tutorial-shell{grid-template-columns:245px minmax(0,1fr) 280px!important;width:min(1380px,calc(100% - 24px))!important}.article-surface{padding:28px 30px!important}}
@media(max-width:1180px){.tutorial-admin-stats{grid-template-columns:repeat(2,minmax(0,1fr))!important}.subject-master-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}.tutorial-admin-cards{grid-template-columns:1fr!important}.tutorial-list-toolbar{grid-template-columns:1fr 1fr!important}.tutorial-list-toolbar .tutorial-search-field{grid-column:1/-1!important}.tutorial-card-actions{grid-template-columns:auto minmax(0,1fr) auto!important}.tutorial-shell{grid-template-columns:235px minmax(0,1fr)!important}.tutorial-side{grid-column:2!important;position:static!important;display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;margin-top:0!important}.tutorial-ad{grid-column:1/-1!important}.subject-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}}
@media(max-width:820px){.tutorial-admin-topbar{flex-direction:column!important;align-items:flex-start!important}.tutorial-admin-stats{grid-template-columns:1fr 1fr!important}.tutorial-master-form .form-grid,.tutorial-admin-editor .form-grid,.tutorial-rights-grid{grid-template-columns:1fr!important}.subject-master-grid{grid-template-columns:1fr!important}.tutorial-admin-card{padding:13px!important}.tutorial-card-actions{grid-template-columns:1fr!important}.tutorial-review-form{grid-template-columns:1fr!important}.tutorial-review-form .action-row{flex-wrap:wrap!important}.tutorial-shell{display:block!important;width:calc(100% - 18px)!important;padding:9px 0 30px!important}.tutorial-toc{position:static!important;height:auto!important;margin-bottom:10px!important}.toc-scroll{max-height:260px!important}.article-surface{padding:22px!important}.tutorial-side{display:grid!important;grid-template-columns:1fr 1fr!important;margin-top:10px!important}.subject-grid{grid-template-columns:1fr!important}.v126-subject-card{grid-template-columns:68px minmax(0,1fr)!important}.subject-cover,.v126-subject-card .initial{width:68px!important;height:68px!important}}
@media(max-width:560px){.tutorial-admin-topbar h1{font-size:28px!important}.tutorial-admin-stats{grid-template-columns:1fr!important}.tutorial-list-toolbar{grid-template-columns:1fr!important}.tutorial-list-toolbar .tutorial-search-field{grid-column:auto!important}.accordion-body{padding:12px!important}.tutorial-side{grid-template-columns:1fr!important}.article-surface{padding:18px!important;border-radius:14px!important}.article-title-row h1{font-size:31px!important}.tutorial-pager{grid-template-columns:1fr!important}.rich-canvas{padding:18px!important;min-height:390px!important}.rich-toolbar{position:static!important}.subject-master-card{grid-template-columns:48px minmax(0,1fr) auto!important}.subject-master-icon,.subject-master-thumb{width:48px!important;height:48px!important}}