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var(--border);background:var(--soft);color:var(--foreground);border-radius:8px;padding:12px 15px;font-size:12px}.notice.error{color:#a72222;background:#fbe8e8;border-color:#f2c5c5}.notice.success{color:#187345;background:#e7f8ef;border-color:#c3e9d4}.auth-layout{grid-template-columns:1fr 1fr;min-height:100vh;display:grid}.auth-aside{color:#fff;background:#061b49;flex-direction:column;justify-content:space-between;padding:50px 60px;display:flex}.auth-aside .brand{color:#fff}.auth-aside h1{max-width:430px;margin-bottom:22px;font-size:48px}.auth-aside p{color:#b2c5e5;max-width:360px;font-size:15px}.auth-aside small{color:#b2c5e5;font-size:11px}.auth-main{background:var(--surface);justify-content:center;align-items:center;padding:55px;display:flex}.auth-box{width:100%;max-width:420px}.auth-box h1{margin-bottom:10px;font-size:30px}.auth-box>p{margin-bottom:30px;font-size:13px}.form-stack{gap:18px;display:grid}.form-stack label,.field{gap:7px;font-size:12px;font-weight:650;display:grid}input,textarea,select{background:var(--surface);color:var(--foreground);border:1px solid var(--border);border-radius:8px;width:100%;min-height:44px;padding:12px 13px;font-size:13px}textarea{resize:vertical;min-height:105px}input[type=checkbox],input[type=radio]{width:18px;min-height:18px;accent-color:var(--blue)}.form-grid{grid-template-columns:1fr 1fr;gap:18px;display:grid}.auth-box>.muted,.auth-box>.form-stack+.muted{margin-top:22px;font-size:12px}.auth-box>form+.full{margin-top:15px}.lesson-container{max-width:850px;margin:auto}.lesson-header{align-items:center;gap:20px;margin-bottom:30px;display:flex}.lesson-header .progress-track{flex:1}.lesson-body{padding:36px;font-size:15px;line-height:1.9}.lesson-body h2{margin:12px 0 20px}.example-block{border-left:3px solid var(--blue);background:var(--soft);border-radius:0 9px 9px 0;margin:22px 0;padding:22px}.quiz-question{border:0;margin:0 0 32px;padding:0}.quiz-question legend{padding-bottom:15px;font-size:16px;font-weight:700}.quiz-option{border:1px solid var(--border);cursor:pointer;border-radius:9px;align-items:center;gap:12px;margin:9px 0;padding:13px;font-size:14px;display:flex}.quiz-option:has(input:checked){background:var(--soft);border-color:var(--blue)}.quiz-result{background:var(--soft);border-radius:12px;margin-top:25px;padding:25px}.table-wrap{overflow:auto}table{border-collapse:collapse;text-align:left;width:100%;font-size:12px}th{color:var(--muted);letter-spacing:.5px;text-transform:uppercase;border-bottom:1px solid var(--border);white-space:nowrap;padding:12px;font-size:10px;font-weight:600}td{border-bottom:1px solid var(--border);padding:15px 12px}.editor-question{border:1px solid var(--border);border-radius:12px;gap:15px;padding:20px;display:grid}.video-player{background:#061b49;border-radius:12px;width:100%;max-height:500px}.subtitle-lines{gap:10px;max-height:300px;display:grid;overflow:auto}.subtitle-lines button{text-align:left;border:1px solid var(--border);background:var(--surface);color:var(--foreground);border-radius:9px;padding:12px}.subtitle-lines button.active{background:var(--soft);border-color:var(--blue)}.subtitle-lines small{color:var(--muted);display:block}.skeleton{background:linear-gradient(100deg,var(--border)30%,var(--soft)50%,var(--border)70%);background-size:200% 100%;border-radius:10px;width:100%;height:35px;margin-bottom:25px;animation:1.5s infinite shimmer}.skeleton.tall{height:220px}.skip-link{z-index:100;background:var(--blue);color:#fff;padding:10px;position:fixed;top:-100px;left:10px}.skip-link:focus{top:10px}.dark-icon{display:none}.dark .dark-icon{display:block}.dark .light-icon{display:none}@keyframes shimmer{to{background-position:-200% 0}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@media (min-width:1500px){.app-content{padding:42px 55px}.app-header{padding:0 55px}.dashboard-grid{grid-template-columns:minmax(0,1fr) 330px}}@media (max-width:1150px){.public-nav{gap:16px}.header-inner{gap:20px}.hero-grid{gap:25px}.hero-stage{transform:scale(.9)}.dashboard-grid{grid-template-columns:minmax(0,1fr) 250px}.stats-row{gap:10px}.stat-card{gap:10px;padding:15px}.app-content{padding:28px 25px}.sidebar{width:220px}.app-main{width:calc(100% - 220px);margin-left:220px}.grid-3{gap:15px}.card{padding:20px}.stat-card strong{font-size:21px}.auth-aside{padding:40px}.auth-main{padding:35px}}@media (max-width:950px){.public-nav{display:none}.public-nav.open{background:var(--surface);z-index:50;box-shadow:var(--shadow);border-bottom:1px solid var(--border);padding:25px;display:flex;position:absolute;top:80px;left:0;right:0}.mobile-menu{display:inline-flex}.hero-grid{grid-template-columns:1fr 1fr;gap:10px}.hero h1{font-size:44px}.hero-stage{transform-origin:50%;min-width:350px;margin-left:-20px;transform:scale(.8)}.hero-copy{font-size:14px}.hero-actions{flex-wrap:wrap}.dashboard-grid{grid-template-columns:1fr}.sidebar{width:205px;padding-inline:13px}.app-main{width:calc(100% - 205px);margin-left:205px}.stats-row{grid-template-columns:1fr 1fr}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-4{grid-template-columns:1fr 1fr}.auth-aside h1{font-size:38px}.footer-grid{gap:20px}.section{padding-top:55px;padding-bottom:55px}}@media (max-width:700px){.container{padding-inline:22px}.public-header{height:77px}.brand{font-size:21px}.header-actions{gap:7px}.header-actions>.button-primary,.login-link{display:none}.hero{padding:40px 0 25px}.hero-grid{grid-template-columns:1fr}.hero h1{max-width:440px;font-size:45px}.hero-copy{font-size:14px}.hero-stage{min-width:0;margin:-10px 0 -20px;transform:scale(.85)}.hero-note{gap:12px;font-size:10px}.badge-top{right:0}.badge-bottom{left:0}.language-row{justify-content:flex-start;gap:20px}.language-row>span:first-child{width:100%}.language-item{font-size:11px}.language-item small{display:none}.grid-3,.grid-2,.split-panel{grid-template-columns:1fr}.section-head{align-items:start}.section-head h2{font-size:25px}.section-head>.button{white-space:nowrap;font-size:10px}.split-panel{gap:25px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:span 2}.copyright{flex-direction:column;gap:10px}.cta-panel{flex-direction:column;align-items:start;padding:30px}.cta-panel h2{font-size:27px}.sidebar{width:245px;transition:transform .2s;transform:translate(-100%);box-shadow:20px 0 80px #0002}.sidebar.sidebar-open{transform:translate(0)}.app-main{width:100%;margin-left:0}.app-header{height:68px;padding:0 18px}.app-header>div:first-child{align-items:center;gap:5px;display:flex}.breadcrumb{font-size:10px}.app-header .header-actions{gap:9px}.language-pill{font-size:10px}.app-content{padding:25px 18px 85px}.page-title{align-items:start}.page-title h1{font-size:25px}.page-title p{font-size:11px}.page-title>.tag{display:none}.welcome-panel{padding:25px}.welcome-panel h2{font-size:25px}.welcome-panel p{max-width:240px;font-size:11px}.welcome-visual{display:none}.stats-row{gap:12px}.stat-card{padding:16px 13px}.stat-card strong{font-size:22px}.stat-card small{font-size:9px}.stat-icon{width:34px;height:36px}.card{padding:20px}.bottom-nav{background:var(--surface);border-top:1px solid var(--border);padding:10px 4px max(10px,env(safe-area-inset-bottom));z-index:45;justify-content:space-around;display:flex;position:fixed;inset:auto 0 0}.bottom-nav a{color:var(--muted);flex-direction:column;align-items:center;gap:4px;min-width:56px;font-size:8px;display:flex}.bottom-nav a.active{color:var(--blue)}.app-footer{padding:18px;font-size:9px}.auth-layout{grid-template-columns:1fr}.auth-aside{gap:30px;min-height:170px;padding:25px}.auth-aside h1{max-width:none;margin-bottom:9px;font-size:26px}.auth-aside p,.auth-aside small{display:none}.auth-main{padding:35px 25px}.auth-box h1{font-size:27px}.form-grid{grid-template-columns:1fr}.lesson-body{padding:24px 20px}.lesson-body h2{font-size:25px}.public-nav.open{flex-wrap:wrap}.grid-4{gap:12px}.table-wrap{margin-inline:-8px}.card-title h3{font-size:14px}}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}