:root{
  color-scheme:light;
  --bg:#f4f7f3;--surface:#fff;--surface-soft:#eef3ee;--surface-deep:#10221f;
  --text:#152621;--muted:#6a7771;--border:#dce5df;--primary:#176b57;--primary-2:#0d5747;
  --lime:#c9f37f;--blue:#9cd9f5;--gold:#f6d47a;--coral:#ff9d7c;--danger:#b9473f;
  --shadow:0 18px 60px rgba(25,57,48,.09);--radius:22px;--sidebar:270px;
}
@media(prefers-color-scheme:dark){html[data-theme=system]{color-scheme:dark;--bg:#0d1715;--surface:#14231f;--surface-soft:#1b2c27;--surface-deep:#09110f;--text:#eef8f3;--muted:#a7b7af;--border:#2b3e37;--primary:#79dbbd;--primary-2:#9be9d1;--shadow:0 18px 60px rgba(0,0,0,.24)}}
html[data-theme=dark]{color-scheme:dark;--bg:#0d1715;--surface:#14231f;--surface-soft:#1b2c27;--surface-deep:#09110f;--text:#eef8f3;--muted:#a7b7af;--border:#2b3e37;--primary:#79dbbd;--primary-2:#9be9d1;--shadow:0 18px 60px rgba(0,0,0,.24)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"Segoe UI",system-ui,-apple-system,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar);padding:28px 20px;display:flex;flex-direction:column;background:var(--surface-deep);color:#edf7f3;z-index:20}.brand{display:flex;align-items:center;gap:12px;padding:0 8px 30px}.brand-mark{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:var(--lime);color:#153228;font-weight:900;letter-spacing:-1px;box-shadow:inset 0 -3px rgba(0,0,0,.1)}.brand strong,.brand small{display:block}.brand strong{font-size:1rem}.brand small{font-size:.72rem;color:#9eb3aa;margin-top:3px}.nav-list{display:flex;flex-direction:column;gap:5px}.nav-list a{display:flex;gap:12px;align-items:center;padding:12px 14px;border-radius:12px;color:#abc0b7;font-weight:650;font-size:.92rem}.nav-list a span{font-size:1.15rem;width:22px;text-align:center}.nav-list a:hover,.nav-list a.active{background:rgba(201,243,127,.12);color:#fff}.nav-list a.active span{color:var(--lime)}.sidebar-card{margin-top:auto;padding:16px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.05);border-radius:16px;display:grid;gap:3px}.sidebar-card .eyebrow{color:#91a79d}.sidebar-card span:last-child{font-size:.74rem;color:#91a79d}.theme-toggle{border:0;background:transparent;color:#9db0a8;text-align:left;padding:14px 10px 0;cursor:pointer;font-size:.8rem}.page-shell{margin-left:var(--sidebar);padding:38px clamp(24px,4vw,64px) 70px;max-width:1700px}.topbar{display:flex;justify-content:space-between;gap:24px;align-items:flex-start;margin-bottom:26px}.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:.68rem;font-weight:850;color:var(--primary);margin:0 0 6px}.topbar h1{font-size:clamp(1.8rem,3vw,2.7rem);letter-spacing:-.045em;margin:0}.lede{color:var(--muted);max-width:680px;margin:7px 0 0}.top-actions{display:flex;align-items:center;gap:12px}.streak-pill{height:48px;background:var(--surface);border:1px solid var(--border);border-radius:16px;display:flex;align-items:center;gap:6px;padding:0 14px;box-shadow:var(--shadow)}.streak-pill span:last-child{color:var(--muted);font-size:.8rem}.avatar{width:48px;height:48px;border:0;border-radius:16px;background:var(--surface-deep);color:var(--lime);font-weight:900;cursor:pointer}.setup-banner{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:13px 16px;border-radius:14px;background:#fff4c9;color:#4d4215;border:1px solid #eedb8d;margin-bottom:20px;font-size:.88rem}.setup-banner a{font-weight:800;white-space:nowrap}.dashboard-grid{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(280px,.75fr);gap:20px}.daily-card,.level-card,.panel,.metrics article{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.daily-card{padding:26px}.card-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}.card-heading h2,.panel h2,.challenge-panel h2{margin:0;font-size:1.24rem;letter-spacing:-.025em}.lesson-badge{background:var(--surface-soft);color:var(--primary);font-weight:800;padding:7px 10px;border-radius:10px;font-size:.78rem}.lesson-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin:24px 0}.lesson-step{position:relative;display:flex;gap:9px;min-width:0;flex-direction:column;padding:12px;background:var(--surface-soft);border-radius:14px;border:1px solid transparent}.lesson-step.done{background:color-mix(in srgb,var(--lime) 25%,var(--surface))}.step-index{display:grid;place-items:center;width:25px;height:25px;border-radius:8px;background:var(--surface);color:var(--primary);font-size:.74rem;font-weight:900}.lesson-step strong,.lesson-step small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lesson-step strong{font-size:.8rem}.lesson-step small,.step-time{font-size:.68rem;color:var(--muted)}.step-time{margin-top:auto}.primary-button,.secondary-button{min-height:48px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;gap:18px;padding:0 19px;font-weight:850}.primary-button{background:var(--primary);color:#fff}.primary-button:hover{background:var(--primary-2)}.daily-card>.primary-button{width:100%}.level-card{padding:26px;background:var(--surface-deep);color:#f6fbf8;overflow:hidden}.level-route{display:flex;align-items:center;margin-bottom:28px}.level-node{width:47px;height:47px;display:grid;place-items:center;border-radius:50%;font-weight:900;border:2px solid #587069;background:#18332d}.level-node.current{background:var(--lime);color:#173126;border-color:var(--lime)}.level-node.target{color:var(--lime)}.route-line{height:3px;flex:1;background:#3e554f}.route-line i{height:100%;display:block;background:var(--lime)}.level-card .eyebrow{color:#8fa49c}.progress-number{display:flex;align-items:baseline;gap:10px}.progress-number strong{font-size:2.4rem;letter-spacing:-.05em}.progress-number span{font-size:.8rem;color:#9eb2aa}.progress-bar{height:7px;background:#334a43;border-radius:99px;overflow:hidden;margin:10px 0 18px}.progress-bar i{height:100%;display:block;background:var(--lime);border-radius:inherit}.encouragement{color:#bfd0c9;font-size:.88rem}.text-link{color:var(--primary);font-size:.8rem;font-weight:850}.level-card .text-link{color:var(--lime)}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:18px 0}.metrics article{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:center;padding:17px}.metrics article small{grid-column:2;color:var(--muted);font-size:.68rem;margin-top:-9px}.metrics strong,.metrics span{display:block}.metrics strong{font-size:1.22rem}.metrics div span{font-size:.72rem;color:var(--muted)}.metric-icon{width:39px;height:39px;border-radius:12px;display:grid!important;place-items:center;font-weight:900;color:#19342c}.metric-icon.lime{background:var(--lime)}.metric-icon.blue{background:var(--blue)}.metric-icon.gold{background:var(--gold)}.metric-icon.coral{background:var(--coral)}.lower-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:20px}.panel{padding:24px}.weak-list{margin-top:15px;display:grid}.weak-list a{display:flex;align-items:center;justify-content:space-between;padding:13px 2px;border-top:1px solid var(--border)}.weak-list strong,.weak-list small{display:block}.weak-list small{color:var(--muted);font-size:.73rem;margin-top:2px}.accuracy{min-width:46px;padding:5px 7px;border-radius:8px;text-align:center;font-size:.75rem;font-weight:900}.accuracy.warn{background:#fee3da;color:#9c3d31}.accuracy.mid{background:#fff1c8;color:#85650a}.accuracy.good{background:#def2df;color:#2a7139}.challenge-panel{position:relative;overflow:hidden;background:linear-gradient(150deg,var(--surface) 50%,color-mix(in srgb,var(--blue) 30%,var(--surface)))}.challenge-icon{position:absolute;right:20px;top:18px;width:42px;height:42px;border-radius:14px;background:var(--gold);display:grid;place-items:center}.challenge-panel h2{margin-top:24px}.challenge-panel p{color:var(--muted);font-size:.86rem}.tag-row{display:flex;gap:6px;margin:16px 0}.tag-row span{border:1px solid var(--border);background:var(--surface);padding:4px 8px;border-radius:99px;color:var(--muted);font-size:.68rem}.secondary-button{border:1px solid var(--border);background:var(--surface);font-size:.8rem;min-height:42px}.empty-state{min-height:70vh;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;max-width:620px}.empty-state h1{font-size:clamp(2.2rem,5vw,4.5rem);line-height:1;margin:10px 0}.empty-state p{color:var(--muted);font-size:1.1rem}.bottom-nav{display:none}.toast-region{position:fixed;right:20px;bottom:20px;z-index:50}
@media(max-width:1050px){.sidebar{width:220px}.page-shell{margin-left:220px}.dashboard-grid{grid-template-columns:1fr}.metrics{grid-template-columns:repeat(2,1fr)}.lower-grid{grid-template-columns:1fr}.lesson-steps{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){body{padding-bottom:84px}.sidebar{display:none}.page-shell{margin:0;padding:24px 16px 30px}.topbar{align-items:center}.topbar .lede{display:none}.streak-pill span:last-child{display:none}.avatar{display:none}.setup-banner{align-items:flex-start;flex-direction:column}.dashboard-grid{display:flex;flex-direction:column}.daily-card{padding:20px}.lesson-steps{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;margin-inline:-20px;padding-inline:20px}.lesson-step{min-width:135px;scroll-snap-align:start}.level-card{order:-1;padding:20px}.level-card .encouragement{display:none}.metrics{grid-template-columns:1fr 1fr}.metrics article{padding:14px;grid-template-columns:auto 1fr}.metrics article small{display:none}.bottom-nav{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);inset:auto 0 0;background:color-mix(in srgb,var(--surface) 93%,transparent);backdrop-filter:blur(16px);border-top:1px solid var(--border);padding:8px max(8px,env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left));z-index:30}.bottom-nav a{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:.62rem;color:var(--muted);font-weight:750}.bottom-nav a span{font-size:1.2rem}.bottom-nav a.active{color:var(--primary)}.card-heading{align-items:center}.topbar h1{font-size:1.7rem}}
@media(max-width:420px){.metrics{grid-template-columns:1fr}.top-actions{gap:5px}.streak-pill{padding:0 10px}.daily-card,.level-card,.panel{border-radius:18px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* Shared content surfaces */
.section-header{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:28px}.section-header h1,.lesson-header h1{font-size:clamp(2rem,4vw,3.4rem);line-height:1;letter-spacing:-.05em;margin:0}.section-header p,.lesson-header>p{color:var(--muted);max-width:680px;margin:10px 0 0}.route-summary{display:flex;align-items:center;gap:12px;border:1px solid var(--border);background:var(--surface);border-radius:16px;padding:13px 17px;white-space:nowrap;box-shadow:var(--shadow)}.route-summary strong{color:var(--primary)}.route-summary span{color:var(--muted);font-size:.78rem}.success-banner{padding:14px 18px;border-radius:14px;background:#def2df;color:#2a7139;margin-bottom:20px;font-weight:800}.back-link{display:inline-block;color:var(--primary);font-weight:800;font-size:.8rem;margin-bottom:20px}.muted-copy{color:var(--muted);font-size:.84rem}

/* Learning path */
.path-layout{display:grid;gap:18px}.module-card{display:grid;grid-template-columns:70px 1fr;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.module-index{display:flex;flex-direction:column;align-items:center}.module-index>span{width:46px;height:46px;display:grid;place-items:center;border-radius:15px;background:var(--surface-deep);color:var(--lime);font-size:1.2rem;font-weight:900}.module-index i{width:2px;flex:1;background:var(--border);margin-top:9px}.module-content>p{color:var(--muted);margin:8px 0 18px;font-size:.87rem}.module-progress{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:var(--surface-soft);font-weight:900;color:var(--primary);font-size:.72rem}.lesson-list{display:grid;gap:7px}.lesson-row{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:11px;border:1px solid var(--border);border-radius:13px}.lesson-row:hover{border-color:var(--primary);transform:translateY(-1px)}.lesson-status{width:31px;height:31px;display:grid;place-items:center;border-radius:10px;background:var(--surface-soft);color:var(--muted);font-size:.72rem}.lesson-status.completed{background:#def2df;color:#2a7139}.lesson-status.in_progress{background:#fff1c8;color:#85650a}.lesson-row strong,.lesson-row small{display:block}.lesson-row strong{font-size:.86rem}.lesson-row small{color:var(--muted);font-size:.72rem;margin-top:2px}.lesson-meta{color:var(--muted);font-size:.72rem}.locked-copy{border:1px dashed var(--border);padding:15px;border-radius:13px}.tests-strip{margin-top:22px;background:var(--surface-deep);color:#fff;border-radius:var(--radius);padding:26px;display:flex;justify-content:space-between;align-items:center;gap:20px}.tests-strip h2{margin:0}.tests-strip p{color:#a9bdb5;max-width:700px;margin:5px 0}.tests-strip .secondary-button{color:var(--lime);border-color:#49615a;background:#19312b;white-space:nowrap}

/* Exercises */
.lesson-header{max-width:850px;margin:0 auto 25px}.lesson-header.compact{max-width:1000px}.lesson-kicker{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:15px}.lesson-kicker span,.exercise-topic{padding:5px 9px;background:var(--surface-soft);border-radius:99px;color:var(--muted);font-size:.68rem;font-weight:750}.lesson-progress-line{height:7px;border-radius:99px;background:var(--border);margin-top:24px;overflow:hidden}.lesson-progress-line i{height:100%;display:block;background:var(--primary);transition:width .25s ease}.exercise-deck{max-width:850px;margin:auto}.exercise-card{display:none;background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:var(--radius);padding:clamp(24px,5vw,48px)}.exercise-card.active{display:block}.exercise-counter{float:right;font-size:.72rem;color:var(--muted)}.exercise-card h2{font-size:clamp(1.45rem,3vw,2.2rem);letter-spacing:-.04em;margin:22px 0 28px}.option-list{display:grid;gap:10px}.option-list button{display:flex;text-align:left;align-items:center;gap:10px;width:100%;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:14px;padding:15px 17px;cursor:pointer;font-weight:700}.option-list button:hover:not(:disabled){border-color:var(--primary);background:var(--surface-soft)}.option-list button.correct{border-color:#4c9a5e;background:#e2f5e5;color:#256733}.option-list button.incorrect{border-color:#cc665a;background:#fee3df;color:#92382f}.answer-text,.free-answer textarea{width:100%;resize:vertical;border:1px solid var(--border);background:var(--surface-soft);color:var(--text);border-radius:14px;padding:16px;outline:none;margin-bottom:13px}.answer-text:focus,.free-answer textarea:focus{border-color:var(--primary)}.feedback-box{margin-top:18px;border-radius:14px;padding:15px 17px;background:var(--surface-soft)}.feedback-box.correct{background:#e2f5e5;color:#256733}.feedback-box.incorrect{background:#fee9e4;color:#873f35}.feedback-box p{margin:5px 0}.feedback-box small{font-weight:800}.next-button{margin-top:16px}.lesson-finish{text-align:center}.finish-mark{margin:auto;width:68px;height:68px;border-radius:22px;background:var(--lime);color:#173126;display:grid;place-items:center;font-size:2rem;font-weight:900}.lesson-finish h2{margin-bottom:4px}.lesson-finish>p{color:var(--muted)}.score-ring{width:130px;height:130px;border:10px solid var(--lime);border-radius:50%;display:flex;flex-direction:column;justify-content:center;margin:24px auto}.score-ring strong{font-size:1.7rem}.score-ring span{color:var(--muted);font-size:.7rem}.lesson-finish form .primary-button{border:0;cursor:pointer}

/* Practice */
.practice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.practice-card{display:flex;gap:18px;align-items:flex-start;padding:22px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.practice-card.featured{grid-column:span 2;background:var(--surface-deep);color:#fff}.practice-card p{color:var(--muted);font-size:.85rem;margin:5px 0 14px}.practice-card.featured p{color:#a9bdb5}.practice-card h2{margin:0;letter-spacing:-.03em}.practice-icon{flex:0 0 48px;height:48px;border-radius:15px;display:grid;place-items:center;background:var(--gold);color:#173126;font-weight:900}.practice-icon.grammar{background:var(--blue)}.practice-icon.question{background:var(--coral)}.practice-icon.words{background:var(--lime)}.card-cta{font-size:.78rem;font-weight:850;color:var(--primary)}.featured .card-cta{color:var(--lime)}.skill-lab{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}.skill-card,.test-list{padding:22px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}.skill-card h2{font-size:1.1rem;margin:0}.skill-card p{color:var(--muted);font-size:.82rem;min-height:55px}.skill-card .secondary-button{border:1px solid var(--border);color:var(--text);cursor:pointer}.skill-card small{display:block;color:var(--muted);margin-top:10px}.test-list{margin-top:18px}.test-list>.card-heading>span{color:var(--muted);font-size:.75rem}.test-pills{display:flex;gap:7px;flex-wrap:wrap;margin-top:16px}.test-pills span{background:var(--surface-soft);padding:7px 10px;border-radius:99px;font-size:.72rem}.challenge-workspace{max-width:1000px;margin:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:clamp(22px,5vw,48px);box-shadow:var(--shadow)}.customer-bubble{background:var(--surface-deep);color:#fff;padding:22px;border-radius:20px 20px 20px 5px;max-width:700px;margin-bottom:30px}.customer-bubble span{color:var(--lime);font-size:.66rem;font-weight:900;letter-spacing:.12em}.customer-bubble p{font-size:1.2rem;margin:8px 0 0}.challenge-workspace>h2{letter-spacing:-.03em}.challenge-options button span{width:30px;height:30px;border-radius:9px;background:var(--surface-soft);display:grid;place-items:center}.free-answer{margin-top:28px;padding-top:24px;border-top:1px solid var(--border)}.free-answer label{display:block;font-weight:850;margin-bottom:8px}.free-answer p{color:var(--muted);font-size:.72rem}

/* Vocabulary */
.vocab-summary{border-radius:18px;background:var(--surface-deep);color:#fff;padding:13px 20px;display:flex;align-items:baseline;gap:8px}.vocab-summary strong{font-size:1.6rem;color:var(--lime)}.vocab-summary span{font-size:.72rem}.filter-row{display:flex;gap:7px;overflow:auto;padding-bottom:12px}.filter-row a{white-space:nowrap;border:1px solid var(--border);background:var(--surface);padding:8px 12px;border-radius:99px;font-size:.74rem;font-weight:750}.filter-row a.active{background:var(--primary);color:#fff;border-color:var(--primary)}.flashcard-section{display:flex;flex-direction:column;align-items:center;margin:18px auto 28px}.flashcard{width:min(100%,620px);height:310px;position:relative;transform-style:preserve-3d;transition:transform .45s;cursor:pointer}.flashcard.flipped{transform:rotateY(180deg)}.flashcard-face{position:absolute;inset:0;backface-visibility:hidden;border:1px solid var(--border);border-radius:28px;box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:35px}.flashcard-face.front{background:var(--surface-deep);color:#fff}.flashcard-face.front strong{font-size:clamp(2rem,7vw,4rem);line-height:1}.flashcard-face.front small{color:#a9bdb5;margin-top:25px}.flashcard-face.back{transform:rotateY(180deg);background:var(--surface)}.flashcard-face.back>span{font-size:1.7rem;font-weight:850}.flashcard-face.back q{margin-top:22px;color:var(--muted);font-size:1rem}.review-actions{display:flex;gap:10px;margin-top:14px}.review-actions button{border:1px solid var(--border);background:var(--surface);color:var(--text);padding:10px 20px;border-radius:12px;cursor:pointer;font-weight:800}.review-actions button:last-child{background:var(--primary);color:#fff}.review-saved{background:#e2f5e5;color:#256733;padding:10px 16px;border-radius:12px;font-weight:800}.vocab-table-wrap{overflow:auto;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.vocab-table{width:100%;border-collapse:collapse;min-width:780px}.vocab-table th,.vocab-table td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--border);font-size:.8rem}.vocab-table th{font-size:.67rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}.vocab-table td small,.vocab-table td strong{display:block}.vocab-table td small{color:var(--muted);margin-top:3px}.category-chip{background:var(--surface-soft);padding:5px 8px;border-radius:8px}.mastery{width:110px;height:6px;background:var(--border);border-radius:99px}.mastery i{height:100%;display:block;border-radius:inherit;background:var(--primary)}

/* Progress and profile */
.progress-metrics{margin-bottom:18px}.analytics-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:18px}.chart-card,.skill-scores,.mistake-card,.profile-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.chart-card>.card-heading>span{font-size:.75rem;color:var(--muted)}.bar-chart{height:260px;display:flex;gap:10px;align-items:flex-end;margin-top:30px;border-bottom:1px solid var(--border)}.chart-column{height:100%;flex:1;display:flex;justify-content:flex-end;flex-direction:column;align-items:center}.chart-column i{width:min(32px,70%);background:var(--primary);border-radius:8px 8px 0 0;position:relative;min-height:8px}.chart-column i span{position:absolute;top:-19px;font-size:.64rem;left:50%;transform:translateX(-50%);color:var(--muted)}.chart-column small{height:25px;padding-top:7px;color:var(--muted);font-size:.62rem}.skill-scores h2,.mistake-card h2,.profile-card h2{margin:0 0 20px}.skill-row{display:grid;grid-template-columns:120px 1fr 30px;gap:9px;align-items:center;margin:13px 0;font-size:.75rem}.skill-row>div{height:7px;background:var(--border);border-radius:99px}.skill-row i{display:block;height:100%;background:var(--primary);border-radius:inherit}.mistake-card{display:grid;grid-template-columns:.7fr 1.3fr;gap:30px;margin-top:18px}.mistake-bars>div{display:grid;grid-template-columns:120px 1fr;gap:10px;align-items:center;margin:9px 0;font-size:.76rem}.mistake-bars i{height:7px;border-radius:99px;background:var(--border)}.mistake-bars b{display:block;height:100%;border-radius:inherit;background:var(--coral)}.profile-avatar{width:70px;height:70px;border-radius:22px;background:var(--surface-deep);color:var(--lime);font-size:2rem;font-weight:900;display:grid;place-items:center}.profile-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.profile-card.full{grid-column:span 2}.profile-route{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center}.profile-route span{font-weight:900;color:var(--primary)}.profile-route i{height:7px;background:var(--border);border-radius:99px}.profile-route b{display:block;height:100%;background:var(--primary);border-radius:inherit}.profile-card dl{margin:22px 0 0}.profile-card dl>div{display:flex;justify-content:space-between;padding:11px 0;border-top:1px solid var(--border);font-size:.82rem}.profile-card dt{color:var(--muted)}.profile-card dd{margin:0;font-weight:750}.experience-tags{display:flex;flex-wrap:wrap;gap:7px}.experience-tags span{padding:7px 10px;border-radius:10px;background:var(--surface-soft);font-size:.75rem;font-weight:750}.settings-row{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--border);padding:15px 0}.settings-row strong,.settings-row small{display:block}.settings-row small{color:var(--muted);margin-top:3px}.settings-row select{background:var(--surface-soft);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:9px 12px}

@media(max-width:900px){.skill-lab{grid-template-columns:1fr}.analytics-grid{grid-template-columns:1fr}.mistake-card{grid-template-columns:1fr}.profile-grid{grid-template-columns:1fr}.profile-card.full{grid-column:auto}}
@media(max-width:760px){.section-header{align-items:flex-start;flex-direction:column}.section-header .primary-button{width:100%}.route-summary{align-self:stretch;justify-content:center}.module-card{grid-template-columns:42px 1fr;padding:18px}.module-index>span{width:34px;height:34px;border-radius:11px}.lesson-row{grid-template-columns:auto 1fr}.lesson-meta{display:none}.tests-strip{align-items:flex-start;flex-direction:column}.practice-grid{grid-template-columns:1fr}.practice-card.featured{grid-column:auto}.practice-card{padding:18px}.flashcard{height:280px}.vocab-summary{align-self:flex-start}.analytics-grid{display:block}.skill-scores{margin-top:18px}.mistake-bars>div{grid-template-columns:95px 1fr}.profile-card{padding:20px}.settings-row{align-items:flex-start;gap:15px;flex-direction:column}.progress-metrics{grid-template-columns:1fr 1fr}}
.test-pills a{background:var(--surface-soft);padding:7px 10px;border-radius:99px;font-size:.72rem}.test-pills a:hover{background:var(--primary);color:#fff}
.achievement-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}.achievement{display:flex;flex-direction:column;gap:8px;align-items:center;text-align:center;padding:16px 8px;border-radius:15px;background:var(--surface-soft);opacity:.45}.achievement.unlocked{opacity:1}.achievement span{width:38px;height:38px;border-radius:12px;background:var(--border);display:grid;place-items:center}.achievement.unlocked span{background:var(--lime);color:#173126}.achievement strong{font-size:.7rem}@media(max-width:900px){.achievement-grid{grid-template-columns:repeat(3,1fr)}}

/* Private access */
.sidebar-logout{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:12px;padding:0 8px;color:#8fa49c;font-size:.67rem}.sidebar-logout span strong{color:#dce9e3}.sidebar-logout button{border:0;background:transparent;color:var(--lime);font-weight:800;cursor:pointer;padding:5px}.auth-body{min-height:100vh;background:var(--surface-deep);padding:0}.auth-shell{min-height:100vh;display:grid;grid-template-columns:minmax(370px,.9fr) minmax(480px,1.1fr)}.auth-story{position:relative;display:flex;flex-direction:column;justify-content:space-between;padding:clamp(28px,5vw,68px);overflow:hidden;background:radial-gradient(circle at 80% 20%,rgba(201,243,127,.13),transparent 35%),linear-gradient(145deg,#10221f,#081411);color:#fff}.auth-story:after{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(201,243,127,.16);border-radius:50%;right:-280px;bottom:-160px;box-shadow:0 0 0 60px rgba(201,243,127,.025),0 0 0 130px rgba(201,243,127,.018)}.auth-brand{padding:0;z-index:1}.auth-copy{max-width:570px;z-index:1}.auth-copy .eyebrow{color:var(--lime)}.auth-copy h1{font-size:clamp(2.6rem,5vw,5.3rem);line-height:.96;letter-spacing:-.06em;margin:12px 0 24px}.auth-copy>p{color:#b8cbc2;font-size:1.05rem;max-width:500px}.auth-features{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}.auth-features span{border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.05);padding:8px 11px;border-radius:99px;color:#d9e7e1;font-size:.73rem}.auth-note{color:#849a90;z-index:1}.auth-form-panel{display:grid;place-items:center;background:var(--bg);padding:30px}.login-card{width:min(100%,460px);background:var(--surface);border:1px solid var(--border);border-radius:28px;padding:clamp(26px,5vw,48px);box-shadow:var(--shadow)}.login-mark{width:50px;height:50px;border-radius:16px;background:var(--lime);color:#173126;display:grid;place-items:center;font-size:1.35rem;font-weight:900;margin-bottom:28px}.login-card h2{font-size:2rem;letter-spacing:-.045em;margin:0}.login-intro{color:var(--muted);font-size:.86rem;margin:8px 0 24px}.login-card label{display:block;font-size:.76rem;font-weight:850;margin:15px 0 6px}.login-card input{width:100%;height:50px;border:1px solid var(--border);border-radius:13px;background:var(--surface-soft);color:var(--text);padding:0 14px;outline:none}.login-card input:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 15%,transparent)}.password-field{position:relative}.password-field input{padding-right:66px}.password-field button{position:absolute;right:7px;top:7px;height:36px;border:0;background:transparent;color:var(--primary);font-size:.72rem;font-weight:850;cursor:pointer}.login-submit{width:100%;border:0;margin-top:22px;cursor:pointer;justify-content:space-between}.login-error{background:#fee9e4;color:#873f35;padding:12px 14px;border-radius:12px;font-size:.8rem;font-weight:750}.login-help{color:var(--muted);font-size:.68rem;text-align:center;margin:18px 12px 0}@media(max-width:820px){.auth-shell{grid-template-columns:1fr}.auth-story{min-height:280px;padding:28px}.auth-copy h1{font-size:2.7rem;max-width:500px}.auth-copy>p,.auth-features,.auth-note{display:none}.auth-form-panel{padding:18px;align-items:start}.login-card{margin-top:-45px;z-index:2}}