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20px;list-style:none;display:grid}.curriculum-module summary::-webkit-details-marker{display:none}.curriculum-module summary:hover{background:#ffffff05}.curriculum-number{width:31px;height:31px;color:var(--green);background:var(--lime);border:1px solid #00bd7829;border-radius:8px;place-items:center;font-size:10px;font-weight:800;display:grid}.curriculum-module-name{gap:3px;display:grid}.curriculum-module-name strong{color:var(--ink);font-size:12px;line-height:1.6}.curriculum-module-name small{color:var(--muted);font-size:9px}.curriculum-chevron{color:var(--muted);font-size:19px;line-height:1;transition:transform .18s}.curriculum-module[open] .curriculum-chevron{transform:rotate(180deg)}.curriculum-lessons{padding:0 20px 10px}.curriculum-lessons .lesson-row:first-child{border-top:1px solid var(--line)}.course-detail-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px;display:grid}.course-source-note{border:1px solid var(--line);color:var(--subtle);background:var(--surface);border-radius:9px;margin-top:15px;padding:12px 15px;font-size:10px;line-height:1.8}.content-panel{border:1px solid var(--line);background:var(--surface);border-radius:12px;overflow:hidden}.panel-heading{border-bottom:1px solid var(--line);padding:18px 20px}.panel-heading h2{margin:0;font-size:17px}.panel-heading p{color:var(--muted);margin:3px 0 0;font-size:10px}.module-block{padding:15px 19px 4px}.module-title{color:var(--ink);justify-content:space-between;align-items:center;gap:14px;padding:3px 0 10px;font-size:12px;font-weight:800;display:flex}.module-title span:last-child{color:var(--muted);font-size:10px;font-weight:500}.lesson-row{border-top:1px solid var(--line);align-items:center;gap:12px;padding:11px 4px;display:flex}.lesson-number{width:24px;height:24px;color:var(--green);background:var(--lime);border-radius:7px;flex:none;place-items:center;font-size:9px;display:grid}.lesson-title{min-width:0;color:var(--ink);flex:1;font-size:11px;font-weight:600;line-height:1.6}.lesson-title:hover{color:var(--green)}.lesson-duration{color:var(--muted);direction:ltr;flex:none;font-size:9px}.side-panel{border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:20px}.side-panel+.side-panel{margin-top:14px}.side-panel h3{margin:0 0 12px;font-size:13px}.check-list{margin:0;padding:0;list-style:none}.check-list li{color:var(--muted);padding:0 22px 11px 0;font-size:11px;line-height:1.7;position:relative}.check-list li:before{content:"✓";width:15px;height:15px;color:var(--green);background:var(--lime);inset-inline:auto 0;border-radius:50%;place-items:center;font-size:9px;display:grid;position:absolute;top:1px}.plain-list{color:var(--muted);margin:0;padding:0 16px 0 0;font-size:11px}.plain-list li{padding:3px 0}.related-link{color:var(--green);border-top:1px solid var(--line);padding:11px 0;font-size:11px;display:block}.related-link:first-of-type{border-top:0}.player-shell{padding:24px 0 70px}.player-top{justify-content:space-between;align-items:center;gap:15px;margin-bottom:15px;display:flex}.player-top .breadcrumbs{flex:1}.player-layout{grid-template-columns:minmax(0,1fr) 330px;align-items:start;gap:20px;display:grid}.player-main{min-width:0}.video-frame{aspect-ratio:16/9;width:100%;box-shadow:var(--shadow);background:#000;border-radius:13px;position:relative;overflow:hidden}.video-frame iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.video-frame:fullscreen{aspect-ratio:auto;border-radius:0;width:100vw;height:100vh}.video-frame .youtube-player-iframe{z-index:1;pointer-events:none}.player-poster{z-index:2;object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.player-center-play{z-index:4;color:#03110a;background:var(--green);cursor:pointer;border:1px solid #ffffff3d;border-radius:50%;place-items:center;width:72px;height:72px;padding:0;transition:transform .18s,background .18s;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 8px 28px #0000006b}.player-center-play:hover:not(:disabled){background:#13d48e;transform:translate(-50%,-50%)scale(1.06)}.player-center-play:focus-visible,.player-control-button:focus-visible{outline:2px solid var(--green);outline-offset:3px}.player-center-play:disabled{cursor:wait}.player-center-play svg{width:28px;height:28px;margin-inline-start:3px}.player-loader{border:2px solid #03110a42;border-top-color:#03110a;border-radius:50%;width:25px;height:25px;animation:player-spin .8s linear infinite}@keyframes player-spin{to{transform:rotate(1turn)}}.player-error{z-index:7;color:var(--ink);text-align:center;background:#050505eb;place-items:center;padding:24px;font-size:13px;display:grid;position:absolute;inset:0}.player-control-bar{z-index:6;color:#fff;inset-inline:0;background:linear-gradient(#0000,#000000f0);align-items:center;gap:9px;min-height:58px;padding:18px 13px 9px;display:flex;position:absolute;bottom:0}.player-control-button{color:#ffffffeb;cursor:pointer;background:0 0;border:0;border-radius:6px;flex:none;place-items:center;width:30px;height:30px;padding:0;transition:color .15s,background .15s;display:grid}.player-control-button:hover:not(:disabled){color:var(--green);background:#ffffff17}.player-control-button:disabled{opacity:.4;cursor:not-allowed}.player-control-button svg{width:18px;height:18px}.player-skip-button{width:34px;font-size:9px;font-weight:700}.player-time{color:#ffffffdb;font-variant-numeric:tabular-nums;white-space:nowrap;flex:none;font-size:9px}.player-seek,.player-volume{height:4px;accent-color:var(--green);cursor:pointer;border-radius:999px;margin:0}.player-seek{appearance:none;background:linear-gradient(90deg,var(--green) var(--seek-progress,0),#ffffff61 var(--seek-progress,0));flex:auto;min-width:40px}.player-volume{appearance:none;background:linear-gradient(90deg,var(--green),#ffffff61);flex:0 0 64px}.player-seek::-webkit-slider-thumb,.player-volume::-webkit-slider-thumb{appearance:none;background:var(--green);border:0;border-radius:50%;width:10px;height:10px;box-shadow:0 0 0 2px #0003}.player-seek::-moz-range-thumb,.player-volume::-moz-range-thumb{background:var(--green);border:0;border-radius:50%;width:10px;height:10px}.player-seek:disabled,.player-volume:disabled{opacity:.45;cursor:not-allowed}.player-heading{padding:20px 3px 0}.player-heading h1{letter-spacing:-.035em;margin:4px 0 7px;font-size:clamp(20px,3vw,28px);line-height:1.5}.player-heading p{color:var(--muted);margin:0;font-size:12px}.player-tools{flex-wrap:wrap;gap:9px;margin-top:18px;display:flex}.player-sidebar{border:1px solid var(--line);background:var(--surface);border-radius:12px;max-height:calc(100vh - 140px);position:sticky;top:91px;overflow:auto}.sidebar-course-info{border-bottom:1px solid var(--line);padding:17px}.sidebar-course-info small{color:var(--muted);font-size:9px}.sidebar-course-info strong{margin:3px 0 10px;font-size:13px;line-height:1.6;display:block}.progress-track{background:var(--surface-raised);border-radius:9px;height:5px;overflow:hidden}.progress-fill{border-radius:inherit;background:var(--green);height:100%;transition:width .3s}.progress-caption{color:var(--muted);justify-content:space-between;margin-top:5px;font-size:9px;display:flex}.sidebar-module{color:var(--muted);padding:11px 13px 2px;font-size:9px;font-weight:800}.sidebar-lesson{text-align:right;cursor:pointer;background:0 0;border:0;align-items:start;gap:9px;width:100%;padding:10px 13px;transition:background .15s;display:flex}.sidebar-lesson:hover{background:var(--surface-raised)}.sidebar-lesson.active{background:var(--lime)}.sidebar-lesson-index{width:21px;height:21px;color:var(--muted);background:var(--surface-raised);border-radius:6px;flex:none;place-items:center;margin-top:1px;font-size:8px;display:grid}.sidebar-lesson.done .sidebar-lesson-index{color:#03110a;background:var(--green)}.sidebar-lesson-text{min-width:0;color:var(--ink);flex:1;font-size:10px;line-height:1.6}.sidebar-lesson.active .sidebar-lesson-text{color:var(--green);font-weight:800}.sidebar-lesson-time{color:var(--muted);white-space:nowrap;direction:ltr;font-size:8px}.lesson-nav{border-top:1px solid var(--line);justify-content:space-between;gap:15px;margin-top:21px;padding-top:15px;display:flex}.lesson-nav a{color:var(--green);font-size:11px;font-weight:700}.lesson-nav [aria-disabled=true]{color:var(--subtle);pointer-events:none}.notes-panel{border:1px solid var(--line);background:var(--surface);border-radius:11px;margin-top:21px;padding:18px}.notes-panel h2{margin:0 0 6px;font-size:13px}.notes-panel p{color:var(--muted);margin:0;font-size:10px}.dashboard-hero{border:1px solid var(--line);background:var(--surface);border-radius:13px;margin:22px 0 28px;padding:25px 28px}.dashboard-hero h1{letter-spacing:-.045em;margin:0;font-size:29px}.dashboard-hero p{color:var(--muted);margin:4px 0 0;font-size:12px}.dashboard-notice{color:#d2e5dc;background:var(--green-deep);border:1px solid #00bd7833;border-radius:8px;margin:15px 0 0;padding:12px 14px;font-size:10px}.dashboard-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.dashboard-course{border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:18px}.dashboard-course h3{margin:8px 0 5px;font-size:14px}.dashboard-course p{color:var(--muted);margin:0 0 14px;font-size:10px}.dashboard-course .button{margin-top:14px}.dashboard-stat-grid{grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0 26px;display:grid}.dashboard-stat{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:17px}.dashboard-stat strong{color:var(--green);font-size:23px;display:block}.dashboard-stat span{color:var(--muted);font-size:10px}.bookmark-list{gap:9px;display:grid}.bookmark-item{border:1px solid var(--line);background:var(--surface);border-radius:9px;align-items:center;gap:14px;padding:13px 15px;display:flex}.bookmark-item a{flex:1;font-size:11px;font-weight:700}.bookmark-item a:hover{color:var(--green)}.bookmark-item small{color:var(--muted);font-size:9px}.blog-intro-card{background:var(--green-deep);border:1px solid #00bd7833;border-radius:13px;margin:23px 0 20px;padding:25px}.blog-intro-card p{max-width:720px;color:var(--muted);margin:5px 0 0;font-size:12px}.blog-external{color:var(--muted);margin:17px 0 0;font-size:10px}.blog-external a{color:var(--green);font-weight:700}.admin-gate,.admin-panel{border:1px solid var(--line);background:var(--surface);border-radius:12px;margin:24px 0 70px;padding:24px}.admin-gate{max-width:560px}.admin-gate h1,.admin-panel h1{margin:5px 0;font-size:28px}.admin-gate p,.admin-panel-intro{color:var(--muted);font-size:11px}.admin-key-form{gap:8px;margin-top:17px;display:flex}.admin-input,.admin-key-form input,.admin-textarea{width:100%;color:var(--ink);border:1px solid var(--line);background:var(--surface-raised);border-radius:8px;outline:0;padding:10px 12px;font-size:11px}.admin-input:focus,.admin-key-form input:focus,.admin-textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px #00bd7824}.admin-message{background:var(--surface-raised);color:var(--muted);border-radius:7px;margin-top:12px;padding:9px 12px;font-size:10px}.admin-course{border-top:1px solid var(--line);padding:17px 0}.admin-course-head{justify-content:space-between;align-items:center;gap:12px;display:flex}.admin-course-head strong{font-size:13px}.admin-form-grid{grid-template-columns:1fr 1fr;gap:11px;margin-top:12px;display:grid}.admin-form-grid label{color:var(--muted);gap:5px;font-size:9px;display:grid}.admin-textarea{resize:vertical;min-height:68px}.admin-course-actions{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.admin-course-actions .button{min-height:34px;padding:0 12px;font-size:10px}.admin-lesson-list{gap:5px;margin-top:12px;display:grid}.admin-lesson{background:var(--surface-raised);border-radius:6px;align-items:center;gap:8px;padding:7px 9px;font-size:9px;display:flex}.admin-lesson span:nth-child(2){flex:1}.admin-lesson button{border:1px solid var(--line);background:var(--surface);cursor:pointer;border-radius:5px;width:24px;height:24px}.admin-unassigned{background:var(--surface-raised);color:var(--muted);border-radius:9px;margin-top:18px;padding:15px;font-size:10px}.admin-unassigned strong{color:var(--ink)}.auth-shell{align-content:start;justify-items:center;min-height:calc(100vh - 150px);padding-top:clamp(40px,9vh,96px);display:grid}.auth-card,.settings-card{border:1px solid var(--line);background:var(--surface);width:min(100%,520px);box-shadow:var(--shadow);border-radius:15px;padding:clamp(23px,5vw,38px)}.auth-card h1,.settings-card h1{margin:9px 0 5px;font-size:clamp(27px,5vw,36px);line-height:1.35}.auth-card>p,.settings-card>p{color:var(--muted);margin:0;font-size:12px;line-height:1.8}.auth-form{gap:13px;margin-top:22px;display:grid}.auth-form label{color:var(--muted);gap:6px;font-size:11px;font-weight:700;display:grid}.auth-form input{border:1px solid var(--line);width:100%;min-height:45px;color:var(--ink);background:var(--surface-raised);border-radius:8px;outline:0;padding:0 12px;font-size:13px}.auth-form input:focus{border-color:var(--green);box-shadow:0 0 0 3px #00bd781f}.auth-form input[readonly]{color:var(--muted)}.auth-form>.button{margin-top:5px}.auth-hint{color:var(--subtle);font-size:10px}.auth-status{background:var(--green-deep);border:1px solid #00bd7833;border-radius:8px;padding:10px 12px;line-height:1.7}.auth-status,.auth-switch{color:var(--muted);font-size:11px}.auth-switch{margin:18px 0 0!important}.auth-switch a{color:var(--green);font-weight:800}.settings-card{width:min(100%,620px)}.settings-actions{flex-wrap:wrap;align-items:center;gap:9px;margin-top:5px;display:flex}.site-footer{border-top:1px solid var(--line);background:#050505;padding:32px 0 27px}.footer-inner{grid-template-columns:1fr auto;align-items:center;gap:16px 30px;width:min(1180px,100% - 48px);margin:auto;display:grid}.footer-inner p{margin:8px 0 0}.footer-inner p,.footer-links{color:var(--muted);font-size:10px}.footer-links{flex-wrap:wrap;gap:20px;display:flex}.footer-links a:hover{color:var(--green)}.footer-inner small{color:var(--subtle);border-top:1px solid var(--line);grid-column:1/-1;padding-top:12px;font-size:9px}@media (max-width:900px){.header-inner{gap:25px}.main-nav{gap:18px}.hero-layout{gap:35px}.hero-visual{min-height:330px}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.categories{grid-template-columns:repeat(2,1fr)}.player-layout{grid-template-columns:minmax(0,1fr) 285px;gap:14px}.course-objectives{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:680px){.header-inner{flex-wrap:wrap;gap:8px 12px;width:min(100% - 30px,1180px);height:auto;min-height:66px;padding-block:9px}.main-nav{border-top:1px solid var(--line);flex:0 0 100%;order:3;justify-content:space-around;gap:12px;margin:0;padding-top:7px;display:flex}.main-nav a{font-size:11px}.brand-wordmark{font-size:20px}.brand-question-mark{font-size:25px}.header-actions{gap:0;margin-inline-start:auto}.header-actions .button{min-height:36px;padding-inline:13px;font-size:10px}.container,.footer-inner{width:min(100% - 30px,1180px)}.hero{padding:34px 0 25px}.hero-layout{grid-template-columns:1fr;gap:27px}.hero-copy{padding:0}.hero h1{margin-top:13px;font-size:clamp(37px,11vw,51px)}.hero-copy>p{font-size:14px}.hero-search{margin-top:22px}.hero-learning-card{gap:10px;margin-top:14px;padding:12px}.hero-learning-card-main strong{font-size:11px}.hero-learning-card-main small{font-size:9px}.hero-learning-card .button{min-height:34px;padding-inline:10px;font-size:9px}.hero-visual{min-height:280px}.visual-card{width:min(250px,67%)}.stats-strip{margin:6px 0 51px;padding:16px 6px}.stat{text-align:center;flex-direction:column;gap:4px}.stat strong{font-size:20px}.stat span{font-size:8px}.section{padding-bottom:53px}.section-heading{align-items:start}.section-heading h2{font-size:23px}.section-heading p{font-size:11px}.section-heading>.text-link{margin-top:8px;font-size:10px}.course-grid{grid-template-columns:1fr;gap:13px}.course-cover{aspect-ratio:2.2}.course-card-content{padding:15px}.course-card h3{font-size:16px}.course-card p{min-height:auto}.path-band{grid-template-columns:1fr;gap:18px;margin-bottom:52px;padding:24px}.path-band h2{font-size:21px}.path-band .button{justify-self:start}.categories{grid-template-columns:1fr 1fr;gap:8px}.category-tile{gap:8px;padding:10px}.category-icon{width:33px;height:33px;font-size:12px}.category-tile .category-icon{border-radius:10px;width:36px;height:36px}.category-tile .category-icon svg{width:18px;height:18px}.category-tile strong{font-size:9px}.category-tile small{font-size:8px}.blog-preview{padding:18px}.blog-list{grid-template-columns:1fr}.blog-row:nth-last-child(2){border-bottom:1px solid var(--line)}.page-shell{padding:26px 0 59px}.page-title{font-size:32px}.page-intro{font-size:12px}.catalog-toolbar{flex-wrap:wrap;gap:8px;margin:21px 0 17px}.catalog-search{flex-basis:100%}.filter-select{flex:1;min-width:120px}.catalog-count{width:100%}.course-hero{padding:19px}.course-hero-titleline{gap:11px}.course-artwork{border-radius:8px;width:76px;height:54px}.course-hero h1{font-size:27px}.course-hero-description{margin-top:12px;font-size:12px}.course-hero-meta{gap:6px;margin-top:14px}.course-hero-meta span{padding:4px 8px;font-size:9px}.course-hero-actions{grid-template-columns:1fr;margin-top:16px;display:grid}.course-outcomes{padding:18px}.course-objectives{grid-template-columns:1fr;gap:7px}.course-objectives li{min-height:0}.curriculum-panel .panel-heading{align-items:start}.curriculum-panel .panel-heading p{white-space:normal;text-align:left;max-width:130px}.curriculum-module summary{grid-template-columns:29px minmax(0,1fr) auto;gap:9px;padding:13px 12px}.curriculum-lessons{padding-inline:12px}.course-detail-grid{grid-template-columns:1fr}.player-shell{padding:17px 0 47px}.player-top{flex-wrap:wrap;align-items:start}.player-top .button{min-height:36px;padding-inline:12px;font-size:10px}.player-layout{grid-template-columns:1fr}.player-sidebar{max-height:none;margin-top:9px;position:static}.player-control-bar{gap:5px;padding-inline:9px}.player-volume{display:none}.player-skip-button{width:31px}.player-heading{padding-top:13px}.player-heading h1{font-size:21px}.player-tools .button{flex:1;min-width:135px}.dashboard-hero{margin-top:17px;padding:19px}.dashboard-hero h1{font-size:25px}.dashboard-grid{grid-template-columns:1fr}.dashboard-stat-grid{gap:7px}.dashboard-stat{padding:12px 9px}.dashboard-stat strong{font-size:20px}.dashboard-stat span{font-size:8px}.bookmark-item{flex-wrap:wrap;align-items:start}.bookmark-item a{flex-basis:calc(100% - 30px)}.blog-intro-card{padding:19px}.admin-gate,.admin-panel{padding:17px}.admin-key-form{flex-direction:column}.admin-form-grid,.footer-inner{grid-template-columns:1fr}.footer-links{gap:12px 16px}.footer-inner small{grid-column:auto}}@media (max-width:420px){.player-skip-button{display:none}.player-time{font-size:8px}.player-center-play{width:58px;height:58px}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}