:root{--navy:#07132f;--ink:#14203a;--muted:#6d7890;--line:#e4e9f2;--bg:#f4f7fb;--white:#fff;--purple:#6f35ee;--purple2:#9e5cff;--cyan:#2aa8ce;--red:#ef1720;--green:#16a36a;--shadow:0 18px 45px rgba(18,35,71,.09);--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink)}button,input,select,textarea{font:inherit}button{cursor:pointer}.demo-strip{height:28px;background:var(--red);color:#fff;font-size:10px;letter-spacing:.16em;font-weight:800;display:flex;align-items:center;justify-content:center;position:fixed;z-index:50;top:0;left:0;right:0}.app-shell{min-height:100vh;padding-top:28px}.sidebar{position:fixed;top:28px;bottom:0;left:0;width:250px;background:linear-gradient(180deg,#07132f,#0b1a3f);color:#fff;padding:26px 18px;display:flex;flex-direction:column;z-index:30}.brand{display:flex;align-items:center;gap:11px;color:#fff;text-decoration:none;padding:0 8px 26px}.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--purple),#23a6d5);display:grid;place-items:center;font-weight:900;font-size:14px;box-shadow:0 8px 22px rgba(111,53,238,.35)}.brand b{display:block;font-size:17px}.brand small{display:block;color:#7ebbd0;font-size:9px;letter-spacing:.28em;margin-top:2px}.nav{display:grid;gap:6px}.nav-item{display:flex;align-items:center;gap:12px;width:100%;border:0;background:transparent;color:#8fa0c3;border-radius:11px;padding:12px 14px;text-align:left;font-weight:650;transition:.2s}.nav-item span{width:20px;text-align:center;font-size:17px}.nav-item:hover,.nav-item.active{background:rgba(255,255,255,.1);color:#fff}.nav-item.active{box-shadow:inset 3px 0 0 var(--purple2)}.nav-label{font-size:9px;letter-spacing:.18em;color:#53688f;font-weight:800;padding:21px 14px 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rgba(106,214,248,.28)}.hero-progress,.mini-progress{height:4px;background:rgba(255,255,255,.18);border-radius:99px;overflow:hidden;margin:18px 0}.hero-progress span,.mini-progress span{height:100%;display:block;background:linear-gradient(90deg,var(--purple2),var(--cyan))}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:20px 0 34px}.stat{background:#fff;border:1px solid var(--line);border-radius:15px;padding:19px;display:flex;align-items:center;gap:15px;box-shadow:0 9px 28px rgba(12,30,70,.04)}.stat-icon{width:39px;height:39px;border-radius:11px;display:grid;place-items:center;font-weight:900;flex:0 0 auto}.stat-icon.purple{background:#f0eafe;color:var(--purple)}.stat-icon.blue{background:#e5f5fb;color:#178cb2}.stat-icon.red{background:#ffeaec;color:var(--red)}.stat-icon.green{background:#e6f7ef;color:var(--green)}.stat small{display:block;color:#8490a4;font-size:8px;letter-spacing:.12em;font-weight:800}.stat 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rgba(255,255,255,.13);bottom:-98px;left:-30px}.cover-1{background:linear-gradient(135deg,#241066,#7b2df0 60%,#33a8ce)}.cover-2{background:linear-gradient(135deg,#051636,#0e5480 62%,#28a4cd)}.cover-3{background:linear-gradient(135deg,#3b0927,#bc182c 60%,#f16253)}.cover-4{background:linear-gradient(135deg,#092b2c,#167765 60%,#57b586)}.cover-5{background:linear-gradient(135deg,#2a1228,#74417c 58%,#c269c7)}.cover-6{background:linear-gradient(135deg,#17203d,#334c92 55%,#7594ec)}.course-cover b{position:relative;z-index:1;font-size:18px;line-height:1.12;max-width:210px}.access-tag{position:absolute;top:13px;left:13px;border-radius:99px;padding:5px 8px;background:rgba(4,9,29,.62);backdrop-filter:blur(10px);font-size:8px;font-weight:850;letter-spacing:.08em}.course-body{padding:16px}.course-meta{display:flex;align-items:center;justify-content:space-between;color:#7f8ba0;font-size:9px;font-weight:700}.course-body h3{font-size:15px;margin:8px 0 6px}.course-body p{font-size:11px;color:var(--muted);line-height:1.5;height:34px;overflow:hidden}.course-progress{height:5px;background:#edf0f5;border-radius:99px;margin:14px 0 7px;overflow:hidden}.course-progress span{display:block;height:100%;background:linear-gradient(90deg,var(--purple),var(--cyan));border-radius:99px}.course-foot{display:flex;align-items:center;justify-content:space-between;font-size:10px;color:var(--muted)}.filter-pills,.level-row{display:flex;gap:8px;flex-wrap:wrap}.filter,.level-pill{border:1px solid var(--line);background:#fff;color:#68748a;border-radius:99px;padding:8px 13px;font-size:10px;font-weight:800}.filter.active,.level-pill.active{background:var(--navy);color:#fff;border-color:var(--navy)}.level-row{margin-bottom:20px}.catalog-banner{background:linear-gradient(135deg,#07132f,#1f1551 60%,#381f76);color:#fff;border-radius:20px;padding:28px 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rgba(18,35,71,.04)}.progress-ring-card{text-align:center}.ring{--p:58;width:150px;height:150px;margin:4px auto 18px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--purple) calc(var(--p)*1%),#edf0f7 0);position:relative}.ring:after{content:"";position:absolute;inset:13px;border-radius:50%;background:#fff}.ring span{position:relative;z-index:1;font-size:29px;font-weight:900}.ring small{display:block;font-size:8px;color:var(--muted);letter-spacing:.12em}.progress-ring-card h3{margin:0}.progress-ring-card p{color:var(--muted);font-size:12px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:14px}.panel-head h3{margin:5px 0 0}.activity .panel-head>b{color:var(--purple)}.bars{height:190px;display:flex;align-items:end;gap:8%;padding:20px 18px 25px}.bars span{flex:1;background:linear-gradient(180deg,var(--purple2),var(--purple));border-radius:7px 7px 2px 2px;position:relative;min-width:20px}.bars i{font-style:normal;position:absolute;bottom:-23px;left:50%;transform:translateX(-50%);font-size:10px;color:var(--muted)}.progress-row{display:grid;grid-template-columns:220px 1fr 46px;align-items:center;gap:18px;padding:15px 0;border-bottom:1px solid var(--line)}.progress-row:last-child{border:0}.progress-row b{font-size:12px}.progress-row .course-progress{margin:0}.progress-row span{text-align:right;font-size:11px;font-weight:800;color:var(--purple)}.admin-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:18px}.admin-list{margin-top:10px}.admin-row{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}.admin-row:last-child{border:0}.mini-cover{width:48px;height:40px;border-radius:9px}.admin-row>div{flex:1}.admin-row b{display:block;font-size:12px}.admin-row small{color:var(--muted);font-size:9px}.status-badge{border-radius:99px;padding:6px 9px;font-size:8px;font-weight:850;white-space:nowrap}.status-badge.live{background:#e7f7ef;color:var(--green)}.status-badge.draft{background:#f1edf9;color:var(--purple)}.status-badge.warning{background:#fff2df;color:#a76700}.config-row{width:100%;border:0;border-bottom:1px solid var(--line);background:transparent;padding:14px 0;display:flex;align-items:center;gap:12px;text-align:left}.config-row:last-child{border:0}.config-row>span:nth-child(2){flex:1}.config-row b,.config-row small{display:block}.config-row b{font-size:12px}.config-row small{font-size:9px;color:var(--muted);margin-top:3px}.config-row i{font-style:normal;font-size:22px;color:#a5afc0}.security-hero{padding:27px;background:linear-gradient(135deg,#07132f,#1c1751);color:#fff;border-radius:19px;display:flex;gap:20px;align-items:center;margin-bottom:18px}.security-hero h2{margin:6px 0;font-size:23px}.security-hero p{margin:0;color:#b1bdd5;max-width:850px;font-size:12px;line-height:1.6}.shield{width:62px;height:62px;flex:0 0 auto;border-radius:18px;display:grid;place-items:center;background:rgba(111,53,238,.32);border:1px solid rgba(255,255,255,.15);font-size:27px}.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.security-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:17px;display:flex;align-items:center;gap:14px}.security-item>span{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:#f0ecfb;color:var(--purple);font-weight:900}.security-item.good>span{background:#e4f7ef;color:var(--green)}.security-item>div{flex:1}.security-item b{font-size:12px}.security-item p{font-size:10px;color:var(--muted);margin:4px 0 0;line-height:1.45}.security-item em{font-style:normal;font-size:8px;text-transform:uppercase;letter-spacing:.08em;color:#a66a00}.security-item.good em{color:var(--green)}.security-note{margin-top:18px;border-left:4px solid var(--purple)}.security-note h3{margin-top:0}.security-note p{font-size:12px;color:var(--muted);line-height:1.7}.back-btn{border:0;background:transparent;color:var(--purple);font-size:11px;font-weight:800;margin-bottom:16px}.player-layout{display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:18px}.video-frame{aspect-ratio:16/9;background:radial-gradient(circle at 70% 30%,#30147d,#07132f 65%);border-radius:18px;display:grid;place-items:center;color:#9baccc;position:relative;overflow:hidden}.video-frame:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,transparent 30%,rgba(111,53,238,.2))}.video-frame>span{position:absolute;bottom:16px;font-size:8px;letter-spacing:.15em}.play-big{width:68px;height:68px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.12);backdrop-filter:blur(8px);color:#fff;font-size:22px;position:relative;z-index:2}.watermark{position:absolute;top:15px;right:17px;color:rgba(255,255,255,.45);font-size:9px}.lesson-meta{display:flex;align-items:end;justify-content:space-between;gap:20px;padding:22px 3px}.lesson-meta h1{font-size:28px;margin:5px 0 7px}.lesson-meta p{color:var(--muted);font-size:12px;line-height:1.6;margin:0}.tabs{border-bottom:1px solid var(--line);display:flex;gap:25px}.tabs button{border:0;background:transparent;padding:12px 2px;color:var(--muted);font-size:11px;font-weight:800}.tabs button.active{color:var(--purple);border-bottom:2px solid var(--purple)}.lesson-copy{padding:15px 3px}.lesson-copy p{color:var(--muted);font-size:12px;line-height:1.7}.resource-card{background:#fff;border:1px solid var(--line);border-radius:13px;padding:14px;display:flex;align-items:center;gap:12px}.resource-card>span{width:36px;height:36px;border-radius:9px;background:#f0ebfd;color:var(--purple);display:grid;place-items:center}.resource-card>div{flex:1}.resource-card b,.resource-card small{display:block}.resource-card b{font-size:11px}.resource-card small{font-size:9px;color:var(--muted)}.module-panel{background:#fff;border:1px solid var(--line);border-radius:17px;padding:19px;height:max-content;position:sticky;top:121px}.module-head{display:flex;justify-content:space-between;align-items:end}.module-head h3{margin:5px 0 0}.module-head strong{color:var(--purple)}.module-panel .mini-progress{background:#edf0f5}.module{border-top:1px solid var(--line);padding:14px 0}.module:first-of-type{border-top:0}.module-title{display:flex;justify-content:space-between;gap:10px;font-size:11px;font-weight:850;margin-bottom:7px}.lesson{display:flex;align-items:center;gap:9px;padding:8px;border-radius:8px;color:#748097;font-size:10px}.lesson.active{background:#f1ecfd;color:var(--purple);font-weight:800}.lesson span{width:19px;height:19px;border-radius:50%;border:1px solid #ced5e2;display:grid;place-items:center;font-size:8px}.lesson.done span{background:var(--green);border-color:var(--green);color:#fff}.modal{border:0;border-radius:18px;padding:0;max-width:560px;width:calc(100% - 30px);color:var(--ink);box-shadow:0 30px 90px rgba(0,0,0,.35)}.modal::backdrop{background:rgba(4,10,29,.72);backdrop-filter:blur(5px)}.modal form{padding:27px;position:relative}.modal h2{margin:6px 0}.modal p{color:var(--muted);font-size:11px;line-height:1.5}.close{position:absolute;right:16px;top:13px;border:0;background:transparent;font-size:25px;color:#7d879a}.modal label{display:grid;gap:6px;font-size:10px;font-weight:800;margin:14px 0}.modal input,.modal select,.modal textarea{border:1px solid var(--line);border-radius:9px;padding:11px;outline:none;color:var(--ink);width:100%}.modal input:focus,.modal textarea:focus,.modal select:focus{border-color:var(--purple)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.modal-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:18px}.modal .ghost{color:var(--muted);border-color:var(--line)}.price-plan,.integration-row,.switch-row{display:flex!important;align-items:center;justify-content:space-between;gap:15px;border:1px solid var(--line);border-radius:12px;padding:14px;margin:10px 0!important}.price-plan span,.price-plan b,.price-plan small,.integration-row b,.integration-row small,.switch-row b,.switch-row small{display:block}.price-plan small,.integration-row small,.switch-row small{font-size:9px;color:var(--muted);margin-top:3px}.price-plan strong{color:var(--purple);font-size:13px}.stripe-logo{font-size:18px;font-weight:900;color:#635bff}.integration-row>div{flex:1}.switch-row input{width:38px}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%,30px);background:#07132f;color:#fff;border:1px solid rgba(255,255,255,.15);border-radius:10px;padding:12px 17px;font-size:11px;opacity:0;pointer-events:none;transition:.25s;z-index:80;box-shadow:var(--shadow)}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:1100px){.sidebar{width:215px}.main{margin-left:215px}.stats-grid{grid-template-columns:repeat(2,1fr)}.course-grid{grid-template-columns:repeat(2,1fr)}.player-layout{grid-template-columns:1fr}.module-panel{position:static}.admin-grid{grid-template-columns:1fr}}
@media(max-width:760px){.demo-strip{font-size:8px}.sidebar{transform:translateX(-100%);transition:.25s;width:250px}.sidebar.open{transform:none}.main{margin-left:0}.topbar{padding:0 16px}.menu-btn{display:block}.profile>span:nth-child(2),.profile i{display:none}.view{padding:23px 16px}.page-head{align-items:flex-start;flex-direction:column}.page-head h1{font-size:29px}.hero{height:420px}.hero>img{object-position:center}.hero-shade{background:linear-gradient(0deg,rgba(4,10,30,.98),rgba(4,10,30,.18))}.hero-content{left:20px;right:20px;bottom:22px}.hero-content h2{font-size:29px}.stats-grid,.course-grid,.security-grid,.progress-layout{grid-template-columns:1fr}.catalog-banner{align-items:flex-start;flex-direction:column}.price{text-align:left}.form-row{grid-template-columns:1fr}.progress-row{grid-template-columns:120px 1fr 38px}.lesson-meta{align-items:flex-start;flex-direction:column}.topbar .search{max-width:none}.top-actions .icon-btn{display:none}}

/* Application and authentication */
.hidden{display:none!important}.no-strip{padding-top:0}.no-strip .sidebar{top:0}.no-strip .main{min-height:100vh}.no-strip .topbar{top:0}.logout-link{margin-top:12px;border:0;background:transparent;color:#8fa0c3;padding:10px;font-size:11px;font-weight:750}.logout-link:hover{color:#fff}.compact-hero{height:330px}.filter-pills{margin-bottom:20px}.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}.form-message{min-height:16px;color:var(--green);font-size:11px}.form-message.error{color:var(--red)}
.auth-page{min-height:100vh;background:#07132f}.auth-shell{min-height:100vh;display:grid;grid-template-columns:minmax(420px,1.15fr) minmax(420px,.85fr)}.auth-visual{position:relative;overflow:hidden;padding:46px 7vw;color:#fff;background:linear-gradient(145deg,rgba(5,12,40,.94),rgba(25,15,74,.83)),url('assets/academy-cover.png') center/cover}.auth-visual:after{content:"";position:absolute;width:430px;height:430px;border-radius:50%;right:-140px;bottom:-210px;border:1px solid rgba(255,255,255,.13);box-shadow:0 0 100px rgba(111,53,238,.36)}.auth-brand{display:flex;align-items:center;gap:12px;position:relative;z-index:2}.auth-brand b,.auth-brand small{display:block}.auth-brand small{font-size:9px;letter-spacing:.26em;color:#70c5dd}.auth-copy{position:absolute;z-index:2;left:7vw;right:7vw;bottom:12vh}.auth-copy h1{font-size:clamp(48px,6vw,82px);line-height:.94;letter-spacing:-.065em;margin:20px 0}.auth-copy>p{max-width:570px;color:#bac6df;font-size:16px;line-height:1.7}.auth-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:28px;color:#dce4f5;font-size:12px}.auth-card{background:#fff;padding:9vh clamp(30px,6vw,90px);display:flex;flex-direction:column;justify-content:center}.auth-mobile-brand{display:none;align-items:center;gap:10px;margin-bottom:30px}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;background:#f1f3f8;border-radius:12px;padding:4px;margin-bottom:34px}.auth-tabs button{border:0;background:transparent;border-radius:9px;padding:11px;color:#7a8599;font-size:11px;font-weight:850}.auth-tabs button.active{background:#fff;color:var(--navy);box-shadow:0 4px 15px rgba(15,30,65,.08)}.auth-form h2{font-size:31px;letter-spacing:-.04em;margin:8px 0 25px}.auth-form label,.stack-form label,.course-settings label{display:grid;gap:7px;color:#34405a;font-size:10px;font-weight:800;margin:15px 0}.auth-form input,.stack-form input,.stack-form select,.course-settings input,.course-settings select{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;outline:none;color:var(--ink);background:#fff}.auth-form input:focus,.stack-form input:focus,.stack-form select:focus,.course-settings input:focus,.course-settings select:focus{border-color:var(--purple);box-shadow:0 0 0 3px rgba(111,53,238,.08)}.auth-form label small{color:var(--muted);font-weight:500}.btn.full{width:100%;margin-top:12px;padding:14px}.auth-legal{font-size:9px;color:#9aa4b5;line-height:1.5;text-align:center;margin-top:26px}.setup-alert{padding:14px 16px;border-radius:11px;background:#fff5e6;border:1px solid #f7d69e;margin-bottom:20px;color:#87540a}.setup-alert b{font-size:12px}.setup-alert p{font-size:10px;line-height:1.5;margin:4px 0 0}.empty-state{text-align:center;padding:34px 18px;color:var(--muted);grid-column:1/-1}.empty-state b{color:var(--ink);font-size:14px}.empty-state p{font-size:11px}.admin-course-row{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;border:0;border-bottom:1px solid var(--line);padding:14px 6px;background:transparent;text-align:left}.admin-course-row:hover{background:#f8f6ff}.admin-course-row b,.admin-course-row small{display:block}.admin-course-row b{font-size:12px}.admin-course-row small{font-size:9px;color:var(--muted);margin-top:4px}.status{font-style:normal;font-size:8px;font-weight:850;border-radius:99px;padding:6px 8px}.status.published{background:#e5f7ef;color:var(--green)}.status.draft{background:#f0ebfd;color:var(--purple)}.course-settings{margin:16px 0;padding:13px;border-radius:12px;background:#f7f8fb}.course-settings label{margin:5px 0}.structure-module{border:1px solid var(--line);border-radius:12px;margin:11px 0;overflow:hidden}.structure-module>div{display:flex;align-items:center;gap:9px;padding:12px;background:#f7f8fb}.structure-module>div b{font-size:11px;flex:1}.structure-module>div span,.structure-module p small{font-size:8px;color:var(--muted)}.structure-module p{display:flex;align-items:center;gap:9px;padding:10px 12px;margin:0;border-top:1px solid var(--line);font-size:10px}.structure-module p small{margin-left:auto}.structure-module>small{display:block;padding:14px;color:var(--muted)}.user-row{display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding:12px 0}.user-row>div{flex:1}.user-row b,.user-row small{display:block}.user-row b{font-size:11px}.user-row small{font-size:9px;color:var(--muted);margin-top:3px}.user-row em{font-style:normal;font-size:8px;color:var(--purple);text-transform:uppercase}.real-video:before{display:none}.real-video iframe{width:100%;height:100%;border:0}.locked-video{display:grid;place-items:center;gap:9px;text-align:center;color:#c4cee3}.locked-video span{font-size:30px}.locked-video b{font-size:12px}.lesson{width:100%;border:0;background:transparent;text-align:left}.toast.error{background:#8e1821}
@media(max-width:900px){.auth-shell{grid-template-columns:1fr}.auth-visual{display:none}.auth-card{min-height:100vh}.auth-mobile-brand{display:flex}.auth-page .brand-mark{color:#fff}}
@media(max-width:760px){.compact-hero{height:390px}.auth-card{padding:45px 24px}.auth-form h2{font-size:27px}.admin-course-row{align-items:flex-start}.structure-module>div{flex-wrap:wrap}.structure-module .text-btn{width:100%;text-align:left;padding:3px 0}}
.course-settings textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;resize:vertical;color:var(--ink)}.tiny-select{border:1px solid var(--line);border-radius:8px;padding:6px;background:#fff;color:var(--muted);font-size:9px}.structure-module p .text-btn{font-size:9px;padding:2px 4px}.checkbox-label{align-content:center;grid-template-columns:auto 1fr!important;justify-content:start!important}.checkbox-label input{width:auto!important}

/* v3 · experiencia interactiva y constructor visual */
.stat-link{width:100%;border:1px solid var(--line);text-align:left;color:var(--ink);font:inherit;transition:.2s}.stat-link:hover{transform:translateY(-3px);border-color:#cfc2fb;box-shadow:0 16px 35px rgba(111,53,238,.12)}.stat-link:focus-visible{outline:3px solid rgba(111,53,238,.2);outline-offset:2px}.text-link{border:0;background:transparent;color:var(--purple);font-size:11px;font-weight:850;padding:8px}.text-link:hover{text-decoration:underline}.builder-grid{grid-template-columns:330px minmax(0,1fr);align-items:start}.course-library{padding:16px;position:sticky;top:96px}.course-library .panel-head{padding:5px 6px 12px}.course-library .panel-head small{color:var(--muted);font-size:9px}.admin-course-row{border-radius:11px;border-bottom:0;margin:3px 0;padding:12px 10px}.admin-course-row.active{background:#f0ebfd;box-shadow:inset 3px 0 0 var(--purple)}.course-row-icon{width:28px;height:28px;flex:0 0 auto;border-radius:8px;background:#f1edfc;color:var(--purple);display:grid;place-items:center;font-size:10px}.admin-course-row.active .course-row-icon{background:var(--purple);color:#fff}.builder-panel{padding:0;overflow:hidden;min-height:540px}.builder-empty{padding:120px 25px}.empty-icon{width:54px;height:54px;margin:0 auto 16px;border-radius:17px;display:grid;place-items:center;background:#f0ebfd;color:var(--purple);font-size:24px}.builder-head{padding:24px 26px 19px;display:flex;align-items:center;justify-content:space-between;gap:18px}.builder-head h2{font-size:25px;margin:5px 0 3px;letter-spacing:-.03em}.builder-head p{color:var(--muted);font-size:10px;margin:0}.builder-tabs{display:flex;gap:6px;padding:0 26px;border-bottom:1px solid var(--line)}.builder-tabs button{border:0;background:transparent;color:var(--muted);padding:12px 4px;margin-right:18px;font-size:11px;font-weight:850;border-bottom:3px solid transparent}.builder-tabs button.active{color:var(--purple);border-bottom-color:var(--purple)}.builder-tab{display:none;padding:22px 26px 28px}.builder-tab.active{display:block;animation:fade .18s ease}.quick-module{display:grid;grid-template-columns:minmax(180px,1fr) 120px auto;gap:9px;padding:13px;border:1px solid #ded5fb;background:#f8f6ff;border-radius:13px}.quick-module input,.quick-module select{border:1px solid var(--line);border-radius:9px;background:#fff;padding:10px;outline:0;color:var(--ink)}.quick-module input:focus,.quick-module select:focus{border-color:var(--purple)}.builder-tip{color:var(--muted);font-size:9px;margin:12px 2px 16px}.module-builder{display:grid;gap:12px}.builder-module{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden;box-shadow:0 5px 18px rgba(19,33,66,.04);transition:.18s}.builder-module.dragging,.builder-lesson.dragging{opacity:.45;border-color:var(--purple)}.builder-module-head{display:flex;align-items:center;gap:9px;padding:12px;background:#f7f8fb;border-bottom:1px solid var(--line)}.drag-handle{color:#9ca7ba;cursor:grab;letter-spacing:-4px;font-weight:900;padding:5px}.drag-handle:active{cursor:grabbing}.module-number,.lesson-number{width:22px;height:22px;flex:0 0 auto;border-radius:7px;background:#eae3fd;color:var(--purple);font-size:9px;font-weight:900;display:grid;place-items:center}.inline-title{min-width:120px;flex:1;border:1px solid transparent;background:transparent;border-radius:7px;padding:7px 8px;font-weight:800;color:var(--ink);outline:0}.inline-title:hover,.inline-title:focus{background:#fff;border-color:#d8ddea}.order-actions{display:flex;gap:3px}.order-actions button{width:27px;height:27px;border:1px solid var(--line);background:#fff;color:#7d8799;border-radius:7px;padding:0}.order-actions button:hover{border-color:var(--purple);color:var(--purple)}.lesson-builder-list{padding:5px 12px 10px}.builder-lesson{display:flex;align-items:center;gap:9px;padding:10px 3px;border-bottom:1px solid #edf0f5;background:#fff}.builder-lesson:last-child{border-bottom:0}.builder-lesson:hover{background:#fbfaff}.lesson-number{background:#f3f5f9;color:#7d879a}.lesson-play{width:23px;height:23px;border-radius:50%;display:grid;place-items:center;background:#f0ebfd;color:var(--purple);font-size:8px}.lesson-name{flex:1;min-width:110px}.lesson-name b,.lesson-name small{display:block}.lesson-name b{font-size:10px}.lesson-name small{color:var(--muted);font-size:8px;margin-top:3px}.empty-lessons{padding:18px 8px;color:var(--muted);font-size:10px;text-align:center}.settings-intro{display:flex;gap:14px;align-items:center;padding:16px;border:1px solid #ded5fb;background:#f8f6ff;border-radius:13px}.settings-intro p{font-size:10px;color:var(--muted);margin:3px 0 0}.settings-icon{width:38px;height:38px;border-radius:11px;background:#ebe4fd;color:var(--purple);display:grid;place-items:center}.course-settings.refined{background:transparent;padding:3px;margin-top:14px}.course-settings.refined>label,.course-settings.refined .form-row{margin-top:14px}.course-settings label small{font-weight:500;color:var(--muted)}.settings-actions{display:flex;justify-content:space-between;align-items:center;gap:16px;border-top:1px solid var(--line);padding-top:18px;margin-top:20px}.settings-actions span{color:var(--muted);font-size:9px}
@media(max-width:1100px){.builder-grid{grid-template-columns:1fr}.course-library{position:static}.builder-panel{min-height:420px}}
@media(max-width:760px){.quick-module{grid-template-columns:1fr}.builder-head{align-items:flex-start;flex-direction:column}.builder-tab,.builder-head{padding-left:16px;padding-right:16px}.builder-tabs{padding:0 16px}.builder-module-head{flex-wrap:wrap}.inline-title{order:1;flex-basis:calc(100% - 100px)}.builder-module-head>.btn{width:100%}.builder-lesson{flex-wrap:wrap}.lesson-name{flex-basis:calc(100% - 110px)}.builder-lesson .order-actions{margin-left:64px}.settings-actions{align-items:stretch;flex-direction:column}.settings-actions .btn{width:100%}}