@import"https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;600;700;800&display=swap";:root{--color-bg-app: #0a1b2c;--color-bg-subtle: #151c26;--glass-bg: rgba(28, 28, 30, .65);--glass-border: rgba(255, 255, 255, .1);--glass-blur: blur(20px);--color-text-main: #FFFFFF;--color-text-secondary: #8E8E93;--color-text-tertiary: #48484A;--color-primary: #2F7BFF;--color-secondary: #FF3B3B;--color-accent: #7DE3FF;--color-blue: #2F7BFF;--color-success: #2FD6FF;--color-error: #FF4B4B;--input-bg: rgba(0, 0, 0, .22);--input-border: rgba(255, 255, 255, .16);--feedback-bg-correct: linear-gradient(180deg, rgba(11, 24, 44, .98), rgba(8, 18, 34, .98));--feedback-bg-error: linear-gradient(180deg, rgba(43, 16, 22, .98), rgba(24, 10, 14, .98));--feedback-outline: rgba(255, 255, 255, .16);--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-xxl: 48px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 999px;--font-family: "Nunito", "Avenir Next", "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-size-sm: .825rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.5rem;--font-size-xxl: 2.5rem;--ease-spring: cubic-bezier(.175, .885, .32, 1.275);--ease-apple: cubic-bezier(.25, .1, .25, 1);--sidebar-width: 280px;--max-content-width: 1000px;--ease-press: cubic-bezier(.32, 0, .67, 0);--border-thickness: 2px}:root[data-theme=light]{--color-bg-app: #eef4fb;--color-bg-subtle: #f7fbff;--glass-bg: rgba(255, 255, 255, .85);--glass-border: rgba(24, 54, 94, .2);--color-text-main: #10233a;--color-text-secondary: #4f5f74;--color-text-tertiary: #75849a;--color-primary: #1f6ef5;--color-secondary: #ff4b5a;--color-accent: #4fc8ff;--input-bg: rgba(255, 255, 255, .92);--input-border: rgba(24, 54, 94, .24);--feedback-bg-correct: linear-gradient(180deg, rgba(225, 241, 255, .98), rgba(214, 235, 255, .98));--feedback-bg-error: linear-gradient(180deg, rgba(255, 236, 239, .98), rgba(255, 224, 229, .98));--feedback-outline: rgba(24, 54, 94, .22)}body:before{content:"";position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:-1;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.03'/%3E%3C/svg%3E")}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}:root[data-reduce-motion="1"] *,:root[data-reduce-motion="1"] *:before,:root[data-reduce-motion="1"] *:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}body{font-family:var(--font-family);background-color:var(--color-bg-app);color:var(--color-text-main);line-height:1.4;-webkit-font-smoothing:antialiased;background-image:radial-gradient(circle at 20% 0%,rgba(47,123,255,.16),transparent 55%),radial-gradient(circle at 80% 0%,rgba(255,59,59,.14),transparent 55%),radial-gradient(circle at 50% 0%,#12263a,#0a1b2c 70%);min-height:100vh}:root[data-theme=light] body{background-image:radial-gradient(circle at 18% 0%,rgba(47,123,255,.2),transparent 55%),radial-gradient(circle at 88% 0%,rgba(255,75,90,.12),transparent 60%),radial-gradient(circle at 50% 0%,#f6fbff,#e9f1fb 72%)}.theme-toggle-btn{position:relative;border-radius:999px;border:var(--border-thickness) solid var(--glass-border);background:var(--glass-bg);color:var(--color-text-main);padding:8px 12px;display:inline-flex;align-items:center;gap:8px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);cursor:pointer;font-weight:700;min-width:94px;justify-content:space-between}.theme-toggle-label{font-size:.82rem;letter-spacing:.02em}.theme-toggle-switch{width:34px;height:20px;border-radius:999px;background:#10233a3d;border:1px solid var(--glass-border);display:inline-flex;align-items:center;padding:2px}.theme-toggle-knob{width:14px;height:14px;border-radius:50%;background:#f6fbff;box-shadow:0 1px 3px #00000040;transform:translate(0);transition:transform .2s ease}.theme-toggle-knob.is-light{transform:translate(14px);background:#1f6ef5}.themed-input{width:100%;padding:12px 14px;border-radius:12px;border:var(--border-thickness) solid var(--input-border);background-color:var(--input-bg);color:var(--color-text-main);outline:none;font-size:1rem}.themed-input::placeholder{color:var(--color-text-secondary)}:root[data-theme=light] .layout-root{background-color:var(--color-bg-app)}:root[data-theme=light] .layout-sidebar{background:linear-gradient(to bottom,#dce9f9,#eef4fb);border-right-color:#15345d1f}:root[data-theme=light] .glass-panel,:root[data-theme=light] .focus-card,:root[data-theme=light] .quick-card,:root[data-theme=light] .rail-card,:root[data-theme=light] .card{background:linear-gradient(160deg,#fffffff2,#f0f7fff2);border-color:#18365e24;box-shadow:0 8px 22px #122c5314;color:var(--color-text-main)}:root[data-theme=light] .lb-race-track,:root[data-theme=light] .ste-glass-card,:root[data-theme=light] .sm-card{background:linear-gradient(165deg,#eef6fff2,#e1effff2);border-color:#18365e29}:root[data-theme=light] .mobile-nav{background:#ffffffeb;border-color:#18365e2e}:root[data-theme=light] .course-layout-main{color:var(--color-text-main)}:root[data-theme=light] .dashboard-date,:root[data-theme=light] .focus-meta,:root[data-theme=light] .focus-progress-text,:root[data-theme=light] .quick-label,:root[data-theme=light] .quick-sub,:root[data-theme=light] .rail-sub,:root[data-theme=light] .rail-subtext,:root[data-theme=light] .text-xs,:root[data-theme=light] .unit-progress-sub,:root[data-theme=light] .lesson-subtitle,:root[data-theme=light] .lesson-desc{color:var(--color-text-secondary)}:root[data-theme=light] .section-label,:root[data-theme=light] .path-caption,:root[data-theme=light] .bookmark-item,:root[data-theme=light] .topic-chip,:root[data-theme=light] .path-node,:root[data-theme=light] .rail-sub,:root[data-theme=light] .rail-subtext{color:#4a5f79}:root[data-theme=light] .topic-chip,:root[data-theme=light] .bookmark-item,:root[data-theme=light] .path-node,:root[data-theme=light] .path-row,:root[data-theme=light] .btn-glass{background:#ffffffd9;border-color:#18365e33}:root[data-theme=light] .path-row-title{color:#1a2f49}:root[data-theme=light] .path-row-status{color:#5e7590}:root[data-theme=light] .btn-glass{color:var(--color-text-main)}:root[data-theme=light] .btn-glass:hover{background:#e5effaf2}:root[data-theme=light] .setting-row{border-top-color:#18365e1f}:root[data-theme=light] .setting-switch{border-color:#18365e33;background:#18365e14}:root[data-theme=light] .setting-switch.on{background:linear-gradient(135deg,#2f7bff,#4fc8ff);border-color:#a7ddffb3}:root[data-theme=light] .theme-mode-btn{border-color:#18365e33;background:#fffc;color:#1a2f49}:root[data-theme=light] .path-node.upcoming{color:#7f93ab}:root[data-theme=light] .path-node.active{background:linear-gradient(135deg,#2f7bff,#4fc8ff);color:#08203a;border-color:transparent;box-shadow:0 10px 20px #2f7bff47}:root[data-theme=light] .section-label{color:#8a9bb0}:root[data-theme=light] .unit-desc{color:#10233ab8}:root[data-theme=light] .focus-badge,:root[data-theme=light] .section-header h2,:root[data-theme=light] .lesson-title,:root[data-theme=light] .quick-value,:root[data-theme=light] .rail-title,:root[data-theme=light] .dashboard-title,:root[data-theme=light] .lb-race-title{color:var(--color-text-main)}:root[data-theme=light] .lesson-chip{border-color:#18365e33;color:#2b3e57;background:#ffffffbf}:root[data-theme=light] .lesson-chip.locked{color:#6d7f95;background:#ecf2fae6}:root[data-theme=light] .lesson-chip.completed{color:#294868}:root[data-theme=light] .lesson-subtitle.active{color:#294868}:root[data-theme=light] .lesson-station.status-completed .lesson-title{color:#1e314a8f}:root[data-theme=light] .lesson-station.status-active .lesson-title{color:#10233a}:root[data-theme=light] .lesson-station.status-locked .lesson-title,:root[data-theme=light] .lesson-station.status-upcoming .lesson-title{color:#1e314a80}:root[data-theme=light] .timeline-end-dot,:root[data-theme=light] .focus-progress-track,:root[data-theme=light] .unit-progress-bar{background:#10233a24}:root[data-theme=light] .unit-header .unit-label,:root[data-theme=light] .unit-header .unit-title,:root[data-theme=light] .unit-header .unit-progress-text,:root[data-theme=light] .unit-header .unit-progress-sub{color:#f5fbfff5}.dashboard-shell{width:100%;max-width:1200px;margin:0 auto;padding:32px 28px 96px;display:flex;flex-direction:column;gap:20px}.dashboard-header{display:flex;flex-direction:column;gap:6px}.dashboard-date{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:#ffffff80}.dashboard-title{font-size:2.1rem;font-weight:800;letter-spacing:-.02em}.dashboard-title span{color:var(--color-primary)}.dashboard-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:start}.dashboard-main{display:flex;flex-direction:column;gap:22px}.focus-card{padding:24px;border-radius:20px;background:linear-gradient(135deg,#141a28eb,#080a10eb);border:var(--border-thickness) solid rgba(47,123,255,.25);display:flex;flex-direction:column;gap:10px;box-shadow:0 20px 40px #00000073}.focus-badge{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:#7de3ffe6;font-weight:700}.focus-title{font-size:1.6rem;font-weight:700}.focus-meta{color:#fff9;font-size:.95rem}.focus-progress{display:flex;align-items:center;gap:12px}.focus-progress-track{flex:1;height:8px;border-radius:999px;background:#ffffff14;overflow:hidden}.focus-progress-fill{height:100%;background:linear-gradient(90deg,var(--color-primary),var(--color-accent));box-shadow:0 0 16px #2f7bff59}.focus-progress-text{font-size:.85rem;color:#fff9}.focus-cta{align-self:flex-start;padding:10px 22px;font-size:.9rem}.path-preview{padding:20px 22px;border-radius:18px;display:flex;flex-direction:column;gap:12px}.section-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:#ffffff8c;font-weight:700}.path-list{display:grid;gap:10px}.path-row{appearance:none;width:100%;border:var(--border-thickness) solid rgba(255,255,255,.08);border-radius:12px;background:#ffffff08;color:inherit;display:grid;grid-template-columns:38px minmax(0,1fr) auto;align-items:center;gap:10px;padding:8px 10px;text-align:left;cursor:pointer}.path-row:disabled{cursor:not-allowed;opacity:.55}.path-row.done{border-color:#7de3ff47}.path-row.active{border-color:#7de3ff73;box-shadow:inset 0 0 0 1px #7de3ff3d}.path-row-title{font-weight:600;color:#ffffffe6;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.path-row-status{font-size:.74rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:#ffffff94}.path-node{appearance:none;width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;background:#ffffff0d;color:#ffffff80;border:var(--border-thickness) solid rgba(255,255,255,.08);cursor:pointer;outline:none}.path-node.done{color:#7de3ffe6;border-color:#7de3ff80;background:#7de3ff1f}.path-node.active{background:linear-gradient(135deg,var(--color-primary),var(--color-accent));color:#0b0f17;border-color:transparent;box-shadow:0 10px 20px #2f7bff59}.path-node.upcoming{opacity:.5}.path-node:disabled{cursor:not-allowed}.path-caption{color:#fff9;font-size:.9rem}.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.quick-card{padding:16px;border-radius:16px;display:flex;flex-direction:column;gap:6px}.quick-action{margin-top:8px;min-height:42px}.quick-label{font-size:.75rem;color:#ffffff8c;text-transform:uppercase;letter-spacing:.1em}.quick-value{font-size:1.3rem;font-weight:700}.quick-sub{font-size:.85rem;color:#ffffff80}.explore-strip{display:flex;flex-direction:column;gap:12px}.topic-row{display:flex;flex-wrap:wrap;gap:10px}.topic-chip{padding:8px 14px;border-radius:999px;border:var(--border-thickness) solid rgba(255,255,255,.12);background:#ffffff0a;color:#fffc;font-weight:600;cursor:pointer}.dashboard-rail{display:flex;flex-direction:column;gap:16px}.rail-card{padding:18px;border-radius:16px;display:flex;flex-direction:column;gap:10px}.rail-title{font-size:1.05rem;font-weight:700}.rail-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;text-align:center}.rail-stat{font-size:1.2rem;font-weight:700}.rail-sub,.rail-subtext{font-size:.85rem;color:#ffffff80}.rail-cta{width:100%;margin-top:4px}.bookmark-item{padding:8px 10px;border-radius:12px;background:#ffffff0a;color:#ffffffbf;font-size:.9rem}.bookmark-button{width:100%;text-align:left;border:var(--border-thickness) solid transparent;cursor:pointer}.dashboard-action-btn{box-shadow:0 8px 18px #2f7bff42}.settings-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.settings-status{font-size:.82rem;color:var(--color-text-secondary)}.settings-section{padding:18px;border-radius:16px;margin-bottom:14px}.setting-row{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:12px 0;border-top:var(--border-thickness) solid rgba(255,255,255,.08)}.setting-label{font-weight:700;color:var(--color-text-main)}.setting-description{font-size:.85rem;color:var(--color-text-secondary);margin-top:3px}.setting-note{font-size:.82rem;color:var(--color-text-secondary);margin:2px 0 6px}.setting-switch{width:48px;height:28px;border-radius:999px;border:var(--border-thickness) solid rgba(255,255,255,.2);background:#ffffff14;padding:3px;display:flex;align-items:center;cursor:pointer}.setting-switch-knob{width:20px;height:20px;border-radius:50%;background:#f4fbff;box-shadow:0 1px 4px #00000040;transform:translate(0);transition:transform .2s ease}.setting-switch.on{background:linear-gradient(135deg,#2f7bff,#4fc8ff);border-color:#abdeffa6}.setting-switch.on .setting-switch-knob{transform:translate(20px)}.theme-mode-row{display:inline-grid;grid-template-columns:1fr 1fr;gap:8px;margin:8px 0}.theme-mode-btn{min-width:90px;padding:9px 12px;border-radius:999px;border:var(--border-thickness) solid rgba(255,255,255,.18);background:#ffffff12;color:#d6e7ff;font-weight:700;cursor:pointer}.theme-mode-btn.active{background:linear-gradient(135deg,#2f7bff,#4fc8ff);border-color:#abdeffb3;color:#fff}.settings-time-input{min-width:208px;max-width:208px;text-align:left}.settings-permission-btn{width:auto;min-width:96px;min-height:38px;border-radius:10px;padding:0 14px;font-weight:700}.settings-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.settings-action-btn{min-height:44px}@media(max-width:1024px){.dashboard-grid{grid-template-columns:1fr}.dashboard-rail{flex-direction:row;flex-wrap:wrap}.rail-card{flex:1 1 240px}}@media(max-width:768px){.dashboard-shell{padding:24px 18px 96px}.dashboard-title{font-size:1.7rem}.quick-grid{grid-template-columns:1fr}.rail-stats{grid-template-columns:repeat(3,minmax(0,1fr))}.settings-header{flex-direction:column;align-items:flex-start;gap:8px}.settings-actions{grid-template-columns:1fr}}.glass-panel{background:var(--glass-bg);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:var(--border-thickness) solid var(--glass-border)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 28px;font-weight:600;letter-spacing:-.01em;border-radius:var(--radius-full);border:none;cursor:pointer;transition:transform .2s var(--ease-apple),background-color .2s;text-decoration:none;font-size:var(--font-size-base);width:100%}.btn:active{transform:scale(.96)}.btn-primary{background:linear-gradient(135deg,#2f7bff,#4fc8ff);color:#fff;box-shadow:0 8px 20px #2f7bff47}.btn-secondary{background:var(--color-bg-subtle);color:var(--color-primary);font-weight:500}.btn-glass{background:#ffffff1a;color:#fff;border:var(--border-thickness) solid rgba(255,255,255,.1)}.btn-glass:hover{background:#fff3}.card{background-color:var(--color-bg-subtle);border-radius:var(--radius-xl);padding:var(--spacing-lg);border:var(--border-thickness) solid rgba(255,255,255,.05)}h1,h2,h3{letter-spacing:-.02em}.hero-card{height:400px;width:100%;border-radius:var(--radius-lg);position:relative;overflow:hidden;margin-bottom:var(--spacing-xl);cursor:pointer;box-shadow:0 10px 30px #00000080;transition:transform .3s var(--ease-apple)}.hero-card:active{transform:scale(.98)}.hero-content{position:absolute;bottom:0;left:0;width:100%;padding:var(--spacing-xl);background:linear-gradient(to top,rgba(0,0,0,.9),transparent)}.hero-badge{font-size:.7rem;font-weight:700;color:var(--color-primary);text-transform:uppercase;letter-spacing:.1em;margin-bottom:8px;display:block}.hero-title{font-size:2.5rem;font-weight:800;line-height:1.1;margin-bottom:8px;color:#fff}.hero-subtitle{font-size:1rem;color:#fffc;margin-bottom:20px;max-width:80%}.hero-btn{width:auto;padding:10px 24px;font-size:.9rem}.scroll-row{display:flex;gap:16px;overflow-x:auto;margin:0 -16px;padding:0 16px 20px;scroll-snap-type:x mandatory}.scroll-row::-webkit-scrollbar{display:none}.course-card{min-width:160px;scroll-snap-align:start}.course-image{width:100%;height:160px;border-radius:var(--radius-md);margin-bottom:8px;display:flex;align-items:center;justify-content:center}.course-info h3{font-size:.9rem;font-weight:600;color:#fff}.course-info p{font-size:.8rem;color:var(--color-text-secondary)}.pill-nav{padding:8px 16px;border-radius:20px;background:#ffffff1a;color:#fff;border:none;font-weight:600;font-size:.9rem;white-space:nowrap;cursor:pointer}.pill-nav.active{background:#fff;color:#000}.section-header{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:16px}.section-header h2{font-size:1.25rem;font-weight:700}.link-text{color:var(--color-primary);font-size:.9rem;cursor:pointer}.text-muted{color:var(--color-text-secondary)}.text-xs{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-secondary)}.container{width:100%;margin:0 auto;padding:var(--spacing-md);min-height:100vh;display:flex;flex-direction:column;align-items:center}.container-inner{width:100%;max-width:640px}.leaderboard-page{max-width:1080px}.lb-race-card{padding:20px;border-radius:18px;display:flex;flex-direction:column;gap:16px}.lb-race-title-row{display:flex;align-items:center;justify-content:space-between}.lb-race-title{font-size:1.12rem;font-weight:800;letter-spacing:.01em}.lb-race-week{font-size:.8rem;color:#fff9;letter-spacing:.06em}.lb-race-track-scroll{width:100%;overflow-x:auto;overflow-y:visible;padding-bottom:6px}.lb-race-track{position:relative;width:max(100%,980px);height:300px;border:var(--border-thickness) solid rgba(47,123,255,.28);border-radius:16px;background:linear-gradient(165deg,#101a2ce6,#070d18f0);box-shadow:inset 0 1px #ffffff14;overflow:hidden}.lb-track-svg{width:100%;height:100%;position:absolute;inset:0}.lb-road-centerline{animation:lb-road-move 2.5s linear infinite}.lb-finish{position:absolute;top:18px;right:18px;font-size:.74rem;color:#7de3fff2;letter-spacing:.1em;font-weight:800;z-index:3}.lb-racer{position:absolute;transform:translate(-50%,-50%);z-index:6;outline:none;animation:lb-car-bob 1.25s ease-in-out infinite;animation-delay:var(--delay, 0s);transition:left 1.3s cubic-bezier(.2,.8,.2,1),top 1.3s cubic-bezier(.2,.8,.2,1),transform 1.3s cubic-bezier(.2,.8,.2,1);transition-delay:var(--travel-delay, 0s)}.lb-racer-vehicle{position:relative;width:56px;height:30px;border-radius:999px;background:linear-gradient(160deg,#315c92,#203957);border:var(--border-thickness) solid rgba(160,216,255,.8);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 14px #00000059;transform:rotate(var(--car-angle, 0deg));transform-origin:center}.lb-wheel{position:absolute;width:9px;height:9px;background:#121722;border-radius:50%;bottom:-5px}.lb-wheel.left{left:10px}.lb-wheel.right{right:10px}.lb-racer-rank{position:absolute;top:-15px;left:-10px;min-width:26px;height:26px;border-radius:999px;padding:0 6px;font-size:.66rem;font-weight:800;color:#ffffffe0;background:#0a1b2ce6;border:var(--border-thickness) solid rgba(125,227,255,.75);display:flex;align-items:center;justify-content:center}.lb-you-tag{position:absolute;top:-18px;right:-16px;font-size:.6rem;font-weight:900;letter-spacing:.08em;color:#fff;background:linear-gradient(135deg,#ff4b4b,#ff7a7a);border:var(--border-thickness) solid rgba(255,255,255,.75);border-radius:999px;padding:2px 6px}.lb-racer-tooltip{position:absolute;left:50%;bottom:calc(100% + 10px);transform:translate(-50%);min-width:150px;pointer-events:none;opacity:0;transition:opacity .12s ease;border:var(--border-thickness) solid rgba(125,227,255,.7);background:#0a1827f0;border-radius:10px;padding:8px 10px;text-align:center;box-shadow:0 10px 20px #0006}.lb-racer-tooltip strong{display:block;font-size:.8rem;color:#fff;white-space:nowrap}.lb-racer-tooltip span{display:block;margin-top:2px;font-size:.72rem;color:#7de3fff2}.lb-racer:hover .lb-racer-tooltip,.lb-racer:focus-visible .lb-racer-tooltip{opacity:1}.lb-racer.is-me .lb-racer-vehicle{border-color:#7de3ff;box-shadow:0 0 0 3px #2f7bff61,0 8px 16px #0006}.lb-racer.is-me .lb-avatar{border-color:#ffffffe6}.lb-racer.is-me:before{content:"";position:absolute;inset:-10px;border-radius:999px;border:2px dashed rgba(125,227,255,.7);z-index:-1;pointer-events:none}.lb-finish-line{position:absolute;right:32px;top:16%;width:18px;height:62%;border:var(--border-thickness) solid rgba(255,255,255,.92);border-radius:2px;background:linear-gradient(45deg,#fff 25%,#111 25% 50%,#fff 50% 75%,#111 75% 100%);background-size:14px 14px;box-shadow:0 0 0 2px #0a1b2ccc;z-index:3}.lb-finish-line:before,.lb-finish-line:after{content:"";position:absolute;left:50%;width:3px;height:10px;transform:translate(-50%);background:#fffffff2}.lb-finish-line:before{top:-10px}.lb-finish-line:after{bottom:-10px}.lb-avatar,.lb-list-avatar{width:34px;height:34px;border-radius:50%;object-fit:cover;border:var(--border-thickness) solid rgba(125,227,255,.5)}.lb-avatar-fallback{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2f7bffcc,#11346ae0);color:#fff;font-size:.72rem;font-weight:800}.lb-list-title{margin-top:2px;margin-bottom:-4px;font-size:.8rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#fff9}.lb-list{border-top:var(--border-thickness) solid rgba(255,255,255,.09);padding-top:14px;display:flex;flex-direction:column;gap:8px}.lb-empty{padding:10px;color:#fff9}.lb-period-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.lb-period-card{border:var(--border-thickness) solid rgba(255,255,255,.12);border-radius:12px;padding:12px;background:#ffffff08}.lb-period-title{font-size:.8rem;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:#7de3fff2;margin-bottom:8px}.lb-period-row{display:grid;grid-template-columns:34px 1fr auto;gap:8px;align-items:center;font-size:.84rem;padding:6px 2px;border-bottom:1px solid rgba(255,255,255,.06)}.lb-period-row:last-child{border-bottom:0}.lb-period-row .name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lb-list-row{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:12px;background:#ffffff05}.lb-list-rank{width:34px;text-align:center;font-weight:800;color:#ffffff94}.lb-list-name{flex:1;font-weight:650}.lb-list-score{font-weight:800;color:#7de3ffeb}@media(max-width:960px){.leaderboard-page{max-width:100%}.lb-race-track{width:900px;height:280px}.lb-racer{transform:translate(-50%,-50%) scale(.95)}.lb-finish-line{right:24px}.lb-period-grid{grid-template-columns:1fr}}@media(max-width:680px){.lb-race-track{width:860px;height:266px}.lb-racer{transform:translate(-50%,-50%) scale(.86)}.lb-finish-line{width:14px;right:20px}.lb-avatar{width:30px;height:30px}}@keyframes lb-road-move{0%{stroke-dashoffset:0}to{stroke-dashoffset:-30}}@keyframes lb-car-bob{0%,to{transform:translate(-50%,-50%)}50%{transform:translate(-50%,-54%)}}@keyframes pulse-glow{0%{box-shadow:0 0 #30d15866}70%{box-shadow:0 0 0 10px #30d15800}to{box-shadow:0 0 #30d15800}}.animate-pulse-glow{animation:pulse-glow 2s infinite}.speed-match-container{width:100%;max-width:800px;margin:0 auto}.speed-match-game-over{padding:var(--spacing-xxl);border-radius:var(--radius-xl);text-align:center;max-width:480px;margin:0 auto}.sm-icon{font-size:4rem;margin-bottom:var(--spacing-md)}.sm-title{font-size:var(--font-size-xl);font-weight:800;margin-bottom:var(--spacing-sm);color:#fff}.sm-subtitle{color:var(--color-text-secondary);margin-bottom:var(--spacing-lg)}.sm-score{font-size:3rem;font-family:monospace;font-weight:800;margin-bottom:var(--spacing-xl);color:var(--color-primary);text-shadow:0 0 20px rgba(48,209,88,.3)}.sm-btn{width:100%;transition:transform .2s}.sm-btn:hover{transform:scale(1.02)}.sm-header{border-radius:var(--radius-full);padding:12px 24px;margin-bottom:var(--spacing-xl);display:flex;align-items:center;justify-content:space-between;position:sticky;top:16px;z-index:100;background-color:#0009;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-shadow:0 8px 32px #0006;border:var(--border-thickness) solid rgba(255,255,255,.1)}.sm-score-box{display:flex;align-items:center;gap:12px}.sm-icon-small{font-size:1.5rem}.sm-label{font-size:.7rem;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.1em;font-weight:700}.sm-value{font-family:monospace;font-weight:700;font-size:1.1rem}.sm-progress-track{flex:1;margin:0 24px}.sm-progress-bar-wrapper{height:8px;background:#ffffff1a;border-radius:var(--radius-full);overflow:hidden}.sm-progress-bar{height:100%;background-color:var(--color-primary);box-shadow:0 0 10px #30d15880}.sm-progress-bar.critical{background-color:var(--color-error);box-shadow:0 0 10px #ff453a80}.sm-timer{width:60px;text-align:right;font-family:monospace;font-weight:700;font-size:1.25rem}.sm-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}@media(min-width:768px){.sm-grid{grid-template-columns:repeat(3,1fr)}}.sm-card{position:relative;padding:24px;border-radius:var(--radius-lg);border:2px solid rgba(255,255,255,.1);background:#1c1c1e99;min-height:120px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;overflow:hidden;color:var(--color-text-main);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.sm-card:hover{background:#ffffff1a}.sm-card.selected{border-color:var(--color-primary);background:#30d15826}.sm-card.error{border-color:var(--color-error);background:#ff453a26}.sm-card-glow{position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.05) 0%,transparent 100%);opacity:0;transition:opacity .2s}.sm-card:hover .sm-card-glow{opacity:1}.sm-card-text{font-weight:700;font-size:1.1rem;z-index:10;-webkit-user-select:none;user-select:none}.sm-dot{width:8px;height:8px;border-radius:50%;background-color:var(--color-primary);position:absolute;bottom:12px;box-shadow:0 0 8px var(--color-primary)}.sm-footer-text{text-align:center;color:#ffffff4d;font-size:.9rem;margin-top:32px;animation:pulse-glow 3s infinite}.ste-container{width:100%;min-height:50vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-sm);padding-top:0}.ste-headline{font-size:2rem;font-weight:800;color:#fff;margin-bottom:8px;letter-spacing:-.02em;text-align:center}.ste-subhead{font-size:1rem;color:var(--color-text-secondary);font-weight:500;text-align:center;margin-bottom:var(--spacing-xl)}.ste-glass-card{background:linear-gradient(180deg,#1e1e20b3,#141416cc);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:var(--border-thickness) solid rgba(255,255,255,.08);border-radius:24px;padding:32px;position:relative;overflow:hidden;box-shadow:0 20px 60px #0006;width:100%;max-width:700px}.ste-glass-highlight{position:absolute;top:0;left:0;width:100%;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);opacity:.5}.ste-sentence-wrapper{display:flex;flex-wrap:wrap;justify-content:center;column-gap:6px;row-gap:12px;position:relative;z-index:10;line-height:1.6}.ste-word-btn{position:relative;background:transparent;border:none;color:#fff;font-size:1.5rem;font-weight:500;padding:2px 6px;border-radius:8px;cursor:pointer;transition:all .2s var(--ease-apple);-webkit-font-smoothing:antialiased}.ste-word-btn:hover{background:#ffffff1a;transform:translateY(-1px)}.ste-word-btn.success{color:#000;background:#30d15833;color:var(--color-primary);font-weight:700}.ste-word-btn.failed{color:var(--color-error);background:#ff453a26;text-decoration:line-through}.ste-word-btn.shaking{color:var(--color-error);background:#ff453a33}.ste-sparkle-bg{position:absolute;inset:0;background:var(--color-primary);filter:blur(15px);border-radius:50%;opacity:0;z-index:-1;transition:opacity .5s}.ste-continue-btn{background:var(--color-primary);color:#000;font-weight:700;font-size:1rem;padding:14px 32px;border-radius:var(--radius-full);border:none;cursor:pointer;display:inline-flex;align-items:center;gap:10px;box-shadow:0 0 30px #30d1584d;transition:all .3s var(--ease-spring);margin-top:32px}.ste-continue-btn:hover{transform:scale(1.05);box-shadow:0 0 50px #30d15880}.ste-continue-icon{display:flex;align-items:center;justify-content:center;background:#0000001a;border-radius:50%;width:20px;height:20px}@media(max-width:768px){.ste-headline{font-size:1.75rem}.ste-word-btn{font-size:1.25rem;padding:4px 8px}.ste-glass-card{padding:20px}}:root{--course-node-size: 64px;--course-node-active-size: 100px;--course-spine-width: 6px;--course-spine-color: rgba(255, 255, 255, .08)}.course-view-container{display:flex;flex-direction:column;height:100vh;width:100%;background-color:transparent;overflow:auto;padding:40px 0;position:relative;min-height:100vh}.text-hero{font-size:2.5rem;font-weight:800;letter-spacing:-.02em;line-height:1.1;color:#fff;margin-bottom:4px;text-shadow:0 0 20px rgba(0,0,0,.5)}.text-subhero{font-size:1rem;color:var(--color-text-secondary);font-weight:500;margin-bottom:var(--spacing-xl);opacity:.8}.text-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.15em;color:var(--color-primary);font-weight:700;margin-bottom:8px;display:block}.course-timeline{position:relative;padding:40px 0;margin-top:20px;display:flex;flex-direction:column;align-items:center}.timeline-spine{position:absolute;top:0;bottom:0;left:50%;transform:translate(-50%);width:var(--course-spine-width);background:var(--course-spine-color);border-radius:var(--radius-full);z-index:0}.timeline-spine-fill{position:absolute;top:0;left:50%;transform:translate(-50%);width:var(--course-spine-width);background:linear-gradient(to bottom,var(--color-primary),var(--color-success));border-radius:var(--radius-full);transition:height 1s cubic-bezier(.4,0,.2,1);box-shadow:0 0 15px #30d1584d;z-index:0}.lesson-node-wrapper{display:flex;align-items:flex-end;width:100%;margin-bottom:40px;position:relative;z-index:1}.lesson-node-container{width:80px;display:flex;justify-content:center;flex-shrink:0;position:absolute;left:50%;transform:translate(-50%);transition:transform .5s var(--ease-spring)}.lesson-node{width:var(--course-node-size);height:var(--course-node-size);border-radius:50%;background:var(--color-bg-subtle);border:4px solid var(--color-bg-app);display:flex;align-items:center;justify-content:center;color:#ffffff4d;font-weight:700;font-size:1.5rem;transition:all .3s var(--ease-spring);position:relative;cursor:default;box-shadow:0 4px 10px #0000004d}.lesson-node.completed{background:#1c1c1e;border-color:var(--color-success);color:var(--color-success);box-shadow:none;transform:scale(.8);font-size:1.2rem}.lesson-node.active{width:100px;height:100px;min-width:100px;min-height:100px;max-width:100px;max-height:100px;border-radius:50%;aspect-ratio:1 / 1;flex-shrink:0;background:radial-gradient(circle at 50% 30%,#3be165,#30d158 60%,#20963d);color:transparent;font-size:0;box-shadow:0 0 0 8px var(--color-bg-app),0 20px 50px -10px #30d15899,inset 0 4px 10px #fff6,inset 0 -8px 20px #0000001a;z-index:2;cursor:pointer;border:none;transform:scale(1);transition:transform .4s var(--ease-spring),box-shadow .3s ease;display:flex;align-items:center;justify-content:center}.lesson-node.active:before{content:"";position:absolute;inset:-12px;border-radius:50%;border:var(--border-thickness) solid rgba(255,255,255,.15);pointer-events:none;animation:breathe-ring 4s ease-in-out infinite;box-sizing:border-box}.lesson-node.active:after{content:"";width:0;height:0;border-top:14px solid transparent;border-bottom:14px solid transparent;border-left:24px solid #000;margin-left:8px;filter:drop-shadow(0 2px 4px rgba(0,0,0,.2));opacity:1;display:block}.lesson-node.active:hover{transform:scale(1.06);box-shadow:0 0 0 8px var(--color-bg-app),0 25px 60px -12px #30d158cc,inset 0 4px 15px #ffffff80,inset 0 -8px 20px #0000001a}.lesson-node.active:active{transform:scale(.95);box-shadow:0 0 0 8px var(--color-bg-app),0 10px 30px -5px #30d15866,inset 0 2px 5px #ffffff4d;transition:transform .1s var(--ease-press)}@keyframes breathe-ring{0%,to{transform:scale(.98);opacity:.5}50%{transform:scale(1.02);opacity:.8}}.lesson-title{font-size:1.05rem;font-weight:700;margin-bottom:4px;color:#fff;line-height:1.2}.lesson-desc{font-size:.85rem;color:var(--color-text-secondary);line-height:1.4;font-weight:400}.badge-pill-up-next{display:inline-flex;font-size:.6rem;font-weight:800;text-transform:uppercase;letter-spacing:.15em;color:#000c;background:var(--color-primary);padding:3px 8px;border-radius:12px;margin-bottom:6px;box-shadow:0 2px 5px #30d15866;align-self:flex-start;opacity:.9}.start-badge-pill{position:absolute;bottom:-28px;left:50%;transform:translate(-50%);background:#fff;color:#000;padding:6px 14px;border-radius:20px;font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;box-shadow:0 4px 15px #0006;white-space:nowrap;animation:float-y 3s ease-in-out infinite;z-index:10;pointer-events:none}@keyframes float-y{0%,to{transform:translate(-50%)}50%{transform:translate(-50%,-4px)}}.course-layout-main{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;width:100%;max-width:1200px;margin:0 auto;padding:0 28px;align-items:start;box-sizing:border-box}.timeline-column{width:100%;min-width:0;max-width:100%;justify-self:center;position:relative;display:flex;flex-direction:column;align-items:stretch}.side-pane-desktop{width:100%;flex-shrink:0;padding-top:20px;display:flex;flex-direction:column;gap:16px;position:sticky;top:20px;height:fit-content}@media(max-width:1200px){.course-layout-main{grid-template-columns:1fr 300px;gap:32px;padding:0 24px}.side-pane-desktop{width:300px}}@media(max-width:1024px){.side-pane-desktop{display:none}.course-layout-main{display:flex;justify-content:center;padding:0 20px;max-width:800px}}.unit-header{width:100%;background:#1f6ef5;border:2px solid rgba(178,218,255,.65);border-radius:var(--radius-lg);padding:14px 16px;margin-bottom:20px;position:relative;z-index:10;box-shadow:0 10px 24px #0d4abf73}.unit-label{font-size:.7rem;font-weight:800;color:#d6eeffe6;text-transform:uppercase;letter-spacing:.1em;margin-bottom:2px;opacity:1}.unit-title{font-size:1.35rem;font-weight:800;color:#f6fbff;margin:0;letter-spacing:-.02em}.unit-desc{font-size:1rem;color:#ffffff80;margin-top:6px;font-weight:500}.unit-progress{margin-top:8px;display:flex;flex-direction:column;gap:5px}.unit-progress-text{display:flex;align-items:center;justify-content:space-between;font-size:.75rem;font-weight:700;color:#e9f6fff2}.unit-progress-bar{height:8px;border-radius:999px;background:#08152c5c;overflow:hidden}.unit-progress-fill{height:100%;background:linear-gradient(90deg,#a7ddff,#dff5ff);box-shadow:0 0 14px #ccf1ff73;transition:width .6s var(--ease-apple)}.unit-progress-sub{font-size:.72rem;color:#e0f3ffe6}.next-lesson-callout{margin-bottom:24px;padding:18px 20px;border-radius:18px;border:var(--border-thickness) solid rgba(47,123,255,.25);background:linear-gradient(135deg,#111827e6,#04060ce6);box-shadow:0 12px 30px #00000073;display:flex;flex-direction:column;gap:8px}.next-lesson-label{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--color-primary);font-weight:800}.next-lesson-title{flex:1;font-size:1.05rem;font-weight:700;color:#fff}.next-lesson-sub{font-size:.85rem;color:#fff9}.side-stats-area{display:flex;justify-content:space-between;margin-bottom:24px;padding:0 4px}.course-stats-group{display:flex;gap:10px}.stat-pill{background:#ffffff14;border:var(--border-thickness) solid rgba(255,255,255,.05);border-radius:14px;padding:4px 10px;display:flex;align-items:center;gap:6px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.stat-value{font-size:.85rem;font-weight:700;color:#fff}.btn-icon-only{width:36px;height:36px;padding:0;display:flex;align-items:center;justify-content:center;border-radius:50%}.course-content-scroll{flex:1;overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column;padding:0;scrollbar-width:none}.course-content-scroll::-webkit-scrollbar{display:none}.course-timeline{position:relative;width:100%;max-width:100%;padding:0 12px 120px 8px;display:flex;flex-direction:column;align-items:flex-start;gap:32px}.timeline-rail{position:absolute;top:0;bottom:80px;left:20px;width:8px;background:linear-gradient(180deg,#4ca3ffcc,#1748a0d9);z-index:0;border-radius:99px;box-shadow:inset 0 2px 4px #00000080;transform:translate(-50%)}.lesson-station{position:relative;display:flex;align-items:center;z-index:1;transition:all .4s var(--ease-spring);cursor:pointer;-webkit-tap-highlight-color:transparent;padding:8px 0 8px 64px}.lesson-station:before{content:"";position:absolute;left:20px;top:50%;width:36px;height:2px;border-radius:999px;background:linear-gradient(90deg,#4ca3ffbf,#4ca3ff26);transform:translateY(-50%);z-index:1}.lesson-station:nth-child(2n){transform:none}.lesson-station:nth-child(2n):hover{transform:scale(1.02)}.lesson-station:hover{transform:scale(1.02)}.node-wrapper{display:flex;align-items:center;gap:24px;width:100%}.node-content{display:flex;flex-direction:column;gap:6px}.lesson-meta{display:flex;align-items:center;gap:8px}.lesson-chip{font-size:.7rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:999px;border:var(--border-thickness) solid rgba(255,255,255,.12);color:#ffffffb3;background:#ffffff0a}.lesson-chip.active{color:#0b0f17;background:linear-gradient(135deg,var(--color-primary),var(--color-accent));border-color:transparent;box-shadow:0 8px 20px #2f7bff59}.lesson-chip.completed{color:#ffffffbf;background:#2f7bff26;border-color:#2f7bff59}.lesson-chip.locked{color:#ffffff80}.lesson-chip.video{color:#0b0f17;background:linear-gradient(135deg,var(--color-primary),var(--color-accent));border-color:transparent}.lesson-chip.subtle{background:#ffffff0f;color:#ffffffa6}.lesson-chip.accent{color:#0b0f17;background:linear-gradient(135deg,var(--color-secondary),#ff7a6a);border-color:transparent;box-shadow:0 8px 18px #ff3b3b59}.lesson-subtitle{font-size:.9rem;color:#ffffff8c}.lesson-subtitle.active{color:#fffc;font-weight:600}.status-icon-area{width:60px;height:60px;border-radius:50%;background:#1c1c1e;border:4px solid rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:800;color:#fff3;flex-shrink:0;box-shadow:0 4px #0006,0 8px 16px #00000080;transition:all .3s cubic-bezier(.1,.7,.1,1);position:relative;z-index:2;transform:translate(0)}.icon-flag{font-size:1.45rem;line-height:1;transform:translateY(-1px)}.icon-play{font-size:1.55rem;line-height:1;transform:translate(1px)}.lesson-title{font-size:1.2rem;font-weight:700;color:#ffffffe6;margin:0;transition:all .3s ease;letter-spacing:-.01em}.lesson-station.status-active{transform:scale(1.08)}.lesson-station.status-active .status-icon-area{width:76px;height:76px;background:var(--color-primary);border:4px solid rgba(255,255,255,.3);color:#0b0f17;box-shadow:0 4px #133f8ce6,0 0 30px #2f7bff73,0 10px 30px #0009;animation:press-pop 1.4s ease-in-out infinite}.status-icon-area.challenge{background:#7de3ff2e;border-color:#7de3ff66;color:#7de3ffe6}.status-icon-area.checkpoint{background:#ff3b3b2e;border-color:#ff3b3b73;color:#ffffffe6}.status-icon-area.video{background:#2f7bff26;border-color:#2f7bff66;color:#7de3ffe6}.status-video .lesson-subtitle{color:#ffffffb3}.video-modal-backdrop{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:200;padding:24px}.video-modal{width:min(860px,95vw);background:#0f141d;border-radius:20px;border:var(--border-thickness) solid rgba(255,255,255,.08);box-shadow:0 30px 60px #0009;padding:20px;display:flex;flex-direction:column;gap:14px}.video-modal-header{display:flex;align-items:center;justify-content:space-between;gap:16px}.video-modal-title{font-size:1.1rem;font-weight:700}.video-modal-sub{font-size:.85rem;color:#fff9}.video-modal-close{background:#ffffff14;border:var(--border-thickness) solid rgba(255,255,255,.12);color:#fff;padding:8px 14px;border-radius:999px;cursor:pointer;font-weight:600}.video-frame{width:100%;aspect-ratio:16 / 9;border-radius:16px;overflow:hidden;background:var(--color-bg-app)}.video-frame iframe,.video-frame video{width:100%;height:100%;object-fit:contain;background:var(--color-bg-app)}.video-modal-footnote{font-size:.8rem;color:#ffffff80;text-align:center}.lesson-station.status-active .status-icon-area:after{content:"";display:none}.lesson-station.status-active .lesson-title{color:#fff}@keyframes pulse-ring{0%{transform:scale(.9);opacity:0}50%{opacity:.3}to{transform:scale(1.1);opacity:0}}@keyframes press-pop{0%{transform:translateY(0) scale(1);box-shadow:0 4px #133f8ce6,0 0 30px #2f7bff73,0 10px 30px #0009}35%{transform:translateY(5px) scale(.96);box-shadow:0 1px #133f8cbf,0 0 18px #2f7bff4d,0 6px 16px #00000080}70%{transform:translateY(-4px) scale(1.05);box-shadow:0 7px #133f8c,0 0 36px #2f7bff99,0 16px 36px #000000b3}to{transform:translateY(0) scale(1);box-shadow:0 4px #133f8ce6,0 0 30px #2f7bff73,0 10px 30px #0009}}@media(prefers-reduced-motion:reduce){.lesson-station.status-active .status-icon-area,.lesson-station.status-active .status-icon-area:after{animation:none}}.lesson-station.status-completed{opacity:.85}.lesson-station.status-completed .status-icon-area{background:#2f7bff38;border-color:#2f7bff8c;color:#7de3fff2}.lesson-station.status-completed .lesson-title{text-decoration:line-through;opacity:.7}.lesson-station.status-locked,.lesson-station.status-upcoming{opacity:.25}.lesson-station.status-locked .status-icon-area,.lesson-station.status-upcoming .status-icon-area{background:#ffffff05}.lesson-station:hover{transform:translate(4px) scale(1.02)}.lesson-station.status-active:hover{transform:scale(1.06)}.timeline-end-dot{width:6px;height:6px;background:#ffffff0f;border-radius:50%;margin-left:34px;margin-top:-10px}@media(max-width:480px){.unit-header{padding:12px;margin-bottom:16px;border-radius:var(--radius-md)}.unit-title{font-size:1.05rem}.unit-progress{margin-top:7px}.course-timeline{padding-top:20px;gap:24px}.course-view-container{padding:24px 0}.timeline-rail{top:20px;left:28px}.status-icon-area{width:44px;height:44px;font-size:.9rem}.icon-flag{font-size:1.15rem}.icon-play{font-size:1.2rem}.lesson-station.status-active .status-icon-area{width:64px;height:64px}.lesson-subtitle{font-size:.8rem}.timeline-end-dot{margin-left:26px}.lesson-title{font-size:.95rem}}@media(max-width:480px){.mobile-nav{background:#14161ea6;border:var(--border-thickness) solid rgba(255,255,255,.06);box-shadow:0 8px 24px #0006}}@media(max-width:768px){.lesson-station:nth-child(2n){transform:none}.lesson-station:nth-child(2n):hover{transform:scale(1.02)}.lesson-station:hover{transform:scale(1.02)}.timeline-rail{left:16px}.lesson-station{padding-left:52px}.lesson-station:before{left:16px;width:28px}}*{box-sizing:border-box!important}.layout-root{display:flex;min-height:100vh;width:100vw!important;background-color:var(--color-bg-app);overflow-x:hidden!important}.layout-sidebar{width:280px!important;min-width:280px!important;border-right:var(--border-thickness) solid rgba(255,255,255,.03);padding:40px 24px;display:flex;flex-direction:column;position:fixed;height:100vh;left:0;top:0;z-index:100;background:linear-gradient(to bottom,#0f2236,#0a1b2c)}.layout-main{flex:1;margin-left:280px!important;width:calc(100vw - 280px)!important;min-width:0!important;min-height:100vh;display:flex;flex-direction:column}.course-view-container,.course-content-scroll{width:100%;display:flex;flex-direction:column}.lbx-shell{padding:18px;border-radius:18px;display:flex;flex-direction:column;gap:14px}.lbx-header{display:flex;justify-content:space-between;align-items:flex-start}.lbx-title{font-size:1.1rem;font-weight:800}.lbx-meta{margin-top:2px;font-size:.76rem;letter-spacing:.08em;color:var(--color-text-secondary)}.lbx-track-card{border:var(--border-thickness) solid rgba(47,123,255,.24);border-radius:16px;padding:0;background:linear-gradient(165deg,#0a1426d9,#070f1ceb);overflow:hidden}.lbx-road{position:relative;height:96px;border-radius:0;border-top:2px solid rgba(255,255,255,.92);border-bottom:2px solid rgba(255,255,255,.92);background:#1d1f23;overflow:visible}.lbx-lane{position:absolute;inset:50% 18px auto;height:4px;transform:translateY(-50%);border-radius:0;background:repeating-linear-gradient(90deg,#fffffffa 0 16px,#fff0 16px 28px)}.lbx-finish-line{position:absolute;right:12px;top:12px;width:18px;height:68px;border-left:2px solid rgba(255,255,255,.96);border-right:2px solid rgba(255,255,255,.96);border-radius:0;background:conic-gradient(from 90deg at 6px 6px,#fff 25%,#121418 0 50%,#fff 0 75%,#121418 0) 0 0 / 12px 12px;box-shadow:none;z-index:4}.lbx-finish-line:after{content:"FINISH";position:absolute;top:50%;right:calc(100% + 8px);transform:translateY(-50%);color:#fff;font-size:.62rem;font-weight:900;letter-spacing:.09em;writing-mode:vertical-rl;text-orientation:mixed;text-shadow:0 1px 2px rgba(0,0,0,.45);z-index:5}.lbx-racer{position:absolute;top:50%;transform:translate(-50%,-50%);transition:left .85s cubic-bezier(.2,.75,.2,1);transition-delay:var(--delay, 0s);z-index:4}.lbx-avatar{width:44px;height:44px;border-radius:50%;object-fit:cover;border:var(--border-thickness) solid rgba(125,227,255,.95);background:#0f2035}.lbx-rank{position:absolute;top:-10px;left:-10px;min-width:24px;height:24px;border-radius:999px;font-size:.64rem;font-weight:800;background:#0f2238;border:var(--border-thickness) solid rgba(125,227,255,.75);color:#eaf6ff;display:flex;align-items:center;justify-content:center;padding:0 5px}.lbx-you{position:absolute;left:50%;transform:translate(-50%);top:calc(100% + 5px);font-size:.62rem;font-weight:900;color:#fff;background:linear-gradient(135deg,#ff4b4b,#ff7a7a);border-radius:999px;padding:1px 7px;border:var(--border-thickness) solid rgba(255,255,255,.88)}.lbx-racer.is-me .lbx-avatar{box-shadow:0 0 0 3px #2f7bff59}.lbx-columns{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr) minmax(0,1fr);gap:10px}.lbx-column{border:var(--border-thickness) solid rgba(255,255,255,.1);border-radius:12px;background:#ffffff08;padding:10px;max-height:380px;overflow:auto}.lbx-column-title{font-size:.75rem;text-transform:uppercase;letter-spacing:.09em;color:var(--color-text-secondary);font-weight:800;margin-bottom:8px}.lbx-row{display:grid;grid-template-columns:36px minmax(0,1fr) auto;gap:8px;align-items:center;padding:7px 0;border-bottom:1px solid rgba(255,255,255,.07)}.lbx-row:last-child{border-bottom:0}.lbx-row .rank{color:var(--color-text-secondary);font-weight:700;font-size:.8rem}.lbx-row .name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:.9rem;font-weight:600}.lbx-row .score{font-weight:800;color:var(--color-primary);font-size:.86rem}.lbx-empty{padding:8px 0 4px;color:var(--color-text-secondary);font-size:.85rem}:root[data-theme=light] .lbx-track-card{background:linear-gradient(165deg,#e2edfafa,#d6e5f7fa);border-color:#18365e29}:root[data-theme=light] .lbx-road{border-color:#11161e59;background:#1d1f23}:root[data-theme=light] .lbx-column{border-color:#18365e1f;background:#fff9}@media(max-width:980px){.lbx-columns{grid-template-columns:1fr}.lbx-track-card{padding-inline:10px}.lbx-finish-line{right:12px}}.feedback-page{display:flex;flex-direction:column;gap:14px}.feedback-header p{color:var(--color-text-secondary);margin-top:4px}.feedback-error,.feedback-loading,.feedback-empty{padding:12px 14px;border-radius:12px}.feedback-submit-card,.feedback-roadmap-card,.feedback-item{padding:14px;border-radius:14px}.feedback-header-row{display:flex;justify-content:space-between;align-items:flex-end;gap:12px}.feedback-open-submit{width:auto;min-width:180px;min-height:44px;padding:10px 20px}.feedback-submit-card h3,.feedback-roadmap-card h3{margin-bottom:10px}.feedback-roadmap-header{display:flex;justify-content:space-between;gap:10px;align-items:baseline}.feedback-roadmap-header p{margin:0;font-size:.8rem;color:var(--color-text-secondary)}.feedback-submit-form{display:grid;gap:10px}.feedback-textarea{min-height:92px;resize:vertical}.feedback-submit-row{display:grid;grid-template-columns:220px minmax(0,1fr);gap:10px}.feedback-select{padding-right:30px}.feedback-submit-btn{min-height:46px}.feedback-roadmap-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}.feedback-roadmap-column{border:var(--border-thickness) solid rgba(255,255,255,.12);border-radius:12px;background:#ffffff08;padding:10px;display:grid;gap:8px;align-content:start;min-height:130px}.feedback-roadmap-column-header{display:flex;justify-content:flex-start;align-items:center;min-height:46px}.feedback-roadmap-count{border:0;background:transparent;color:var(--color-text-secondary);font-weight:700;font-size:.78rem;text-align:left;white-space:nowrap;cursor:pointer;padding:0;justify-self:start;margin-top:-2px}.feedback-roadmap-item{border:var(--border-thickness) solid rgba(255,255,255,.1);border-radius:10px;padding:8px;background:#ffffff0a}.feedback-roadmap-title{font-size:.85rem;font-weight:700}.feedback-roadmap-meta,.feedback-roadmap-empty{font-size:.78rem;color:var(--color-text-secondary)}.feedback-roadmap-more{border:0;background:transparent;color:var(--color-primary);font-weight:700;font-size:.78rem;cursor:pointer;padding:0;justify-self:start}.feedback-roadmap-column .feedback-status-chip{max-width:100%}.feedback-filter-row{display:flex;flex-wrap:wrap;gap:8px}.feedback-filter-btn{border:var(--border-thickness) solid rgba(255,255,255,.18);background:#ffffff0d;color:var(--color-text-main);border-radius:999px;padding:7px 12px;font-weight:700;font-size:.8rem;cursor:pointer}.feedback-filter-btn.active{background:linear-gradient(135deg,#2f7bff,#4fc8ff);border-color:#a7ddffbf;color:#fff}.feedback-list{display:grid;gap:10px}.feedback-item-header{display:grid;grid-template-columns:72px minmax(0,1fr);gap:10px;align-items:start}.feedback-vote-stack{border:var(--border-thickness) solid rgba(255,255,255,.15);background:#ffffff0a;border-radius:12px;width:72px;padding:6px 0;display:grid;justify-items:center;gap:4px}.feedback-vote-btn{border:var(--border-thickness) solid rgba(255,255,255,.18);background:#ffffff0d;color:var(--color-text-main);border-radius:10px;min-width:42px;width:42px;height:34px;font-weight:800;cursor:pointer}.feedback-vote-btn.voted{background:linear-gradient(135deg,#2f7bff,#4fc8ff);border-color:#a7ddffbf;color:#fff}.feedback-vote-btn.voted-down{background:linear-gradient(135deg,#ff6d6d,#ff9b9b);border-color:#ffb2b2e6;color:#fff}.feedback-vote-total{font-size:1rem;font-weight:900;line-height:1;color:var(--color-text-main)}.feedback-item-main h4{margin:0;font-size:1rem}.feedback-item-main p{margin:6px 0 0;color:var(--color-text-secondary)}.feedback-item-title-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.feedback-item-meta{margin-top:8px;display:flex;align-items:center;gap:10px;color:var(--color-text-secondary);font-size:.8rem}.feedback-link-btn{background:none;border:0;color:var(--color-primary);cursor:pointer;font-weight:700;padding:0}.feedback-admin-row{margin-top:10px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.feedback-mark-done{width:auto;min-width:120px}.feedback-select.admin{width:180px;min-height:38px}.feedback-delete-btn{width:auto;min-width:100px}.feedback-modal-overlay{position:fixed;inset:0;z-index:2500;background:#020a19b3;display:grid;place-items:center;padding:20px}.feedback-modal{width:min(760px,calc(100vw - 24px));max-height:calc(100vh - 24px);overflow:auto;padding:16px}.feedback-modal-header{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px}.feedback-modal-header h3{margin:0}.feedback-modal-close{border:var(--border-thickness) solid rgba(255,255,255,.2);border-radius:999px;background:#ffffff14;color:var(--color-text-main);font-weight:700;cursor:pointer;padding:8px 12px}.feedback-comments{margin-top:10px;border-top:var(--border-thickness) solid rgba(255,255,255,.1);padding-top:10px;display:grid;gap:8px}.feedback-comment{border:var(--border-thickness) solid rgba(255,255,255,.1);border-radius:10px;background:#ffffff08;padding:8px;font-size:.9rem}.feedback-comment-meta{display:flex;justify-content:space-between;margin-bottom:4px;color:var(--color-text-secondary);font-size:.76rem}.feedback-comment-input-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px}.feedback-comment-btn{width:auto;min-width:98px}.feedback-status-chip{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:4px 8px;font-size:.72rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;border:var(--border-thickness) solid rgba(255,255,255,.2);background:#ffffff0f}.feedback-status-chip.status-under_review{border-color:#7de3ff80;color:#bdefff}.feedback-status-chip.status-planned{border-color:#4ec8ff8c;color:#9ddfff}.feedback-status-chip.status-in_progress{border-color:#ffd37a8c;color:#ffe3a2}.feedback-status-chip.status-done{border-color:#60e0ae8c;color:#8bf3ce}.feedback-status-chip.status-declined{border-color:#ff787880;color:#ffb2b2}:root[data-theme=light] .feedback-roadmap-column,:root[data-theme=light] .feedback-item,:root[data-theme=light] .feedback-roadmap-item,:root[data-theme=light] .feedback-comment{border-color:#18365e29;background:#ffffffb8}:root[data-theme=light] .feedback-vote-btn,:root[data-theme=light] .feedback-filter-btn{border-color:#18365e33;background:#ffffffd1;color:#17304b}:root[data-theme=light] .feedback-vote-stack{border-color:#18365e33;background:#ffffffb8}:root[data-theme=light] .feedback-modal-close{border-color:#18365e33;background:#ffffffd1;color:#17304b}@media(max-width:1080px){.feedback-roadmap-header{flex-direction:column;align-items:flex-start}.feedback-roadmap-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:768px){.feedback-header-row{flex-direction:column;align-items:flex-start}.feedback-open-submit{width:100%}.feedback-submit-row,.feedback-roadmap-grid,.feedback-item-header,.feedback-comment-input-row{grid-template-columns:1fr}}