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label{font-weight:700;font-size:.9rem}.field input,.pw-wrap input{width:100%;padding:11px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface-2);font-size:1rem;transition:border-color .15s,box-shadow .15s}.field input:focus,.pw-wrap input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 20%,transparent);background:var(--surface)}.field.has-error input,.field input[aria-invalid=true]{border-color:var(--danger)}.field-error{color:var(--danger);font-size:.82rem;font-weight:700;margin:0}.pw-wrap{position:relative}.pw-wrap input{padding-inline-end:76px}html[dir=rtl] .pw-wrap input{padding-left:76px;padding-right:14px}.pw-toggle{position:absolute;top:50%;transform:translateY(-50%);inset-inline-end:8px;border:0;background:var(--surface);color:var(--brand);font-weight:700;font-size:.82rem;padding:4px 10px;border-radius:8px;cursor:pointer}.strength{display:flex;align-items:center;gap:10px;font-size:.8rem;color:var(--muted)}.strength-bars{display:flex;gap:4px}.strength-bars i{width:34px;height:5px;border-radius:3px;background:var(--line)}.strength.s1 .strength-bars i:nth-child(1){background:var(--danger)}.strength.s2 .strength-bars i:nth-child(-n+2){background:var(--warn)}.strength.s3 .strength-bars i{background:var(--ok)}.role-pick{border:0;padding:0;margin:0 0 2px;display:grid;grid-template-columns:1fr 1fr;gap:10px}.role-pick legend{font-weight:700;font-size:.9rem;margin-bottom:6px;padding:0}.role-card{display:flex;align-items:center;gap:10px;padding:12px;border:1.5px solid var(--line);border-radius:14px;background:var(--surface-2);cursor:pointer;transition:border-color .15s,box-shadow .15s}.role-card input{position:absolute;opacity:0;pointer-events:none}.role-card:hover{border-color:color-mix(in srgb,var(--brand) 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span{color:var(--danger)}.auth-submit{width:100%;padding:13px;font-size:1.05rem;margin-top:4px}.link-btn{justify-self:start;border:0;background:none;color:var(--brand);font-weight:700;cursor:pointer;padding:0;font-size:.88rem}.auth-switch{text-align:center;margin:14px 0 0;color:var(--muted)}.auth-switch a{color:var(--brand);font-weight:800;text-decoration:none}.auth-switch+.auth-switch{margin-top:6px;font-size:.9rem}.auth-demo{font-size:.8rem;color:var(--muted);background:var(--surface-2);border:1px dashed var(--line);border-radius:10px;padding:8px 12px;margin:18px 0 0;text-align:center}.account-page{max-width:960px;margin:0 auto}.account-head{display:flex;align-items:center;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:var(--shadow);margin-bottom:18px}.account-head h1{font-size:1.6rem;font-weight:800}.account-head p{margin:4px 0 0}.muted{color:var(--muted)}.account-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:18px;align-items:start}.account-grid form{display:grid;gap:14px}.account-grid .panel+.panel{margin-top:0}@media(max-width:860px){.auth-page{grid-template-columns:1fr}.auth-side{padding:22px}.auth-side .hero-art{display:none}.auth-perks{font-size:.9rem}.account-grid{grid-template-columns:1fr}}@media(max-width:560px){.hide-sm,.user-name{display:none}.user-chip{padding:2px}.role-pick{grid-template-columns:1fr}.header-actions{gap:5px}}.auth-locked{display:flex;align-items:center;gap:8px;margin:-8px 0 16px;padding:10px 14px;border-radius:12px;font-weight:700;font-size:.9rem;background:color-mix(in srgb,var(--brand) 10%,transparent);color:var(--brand)}.field-hint{margin:0;font-size:.8rem;color:var(--muted)}@media(max-width:440px){.brand-text{display:none}.header-actions{flex-shrink:0}}.header-actions{flex-shrink:0}.brand{flex:1 1 auto}.brand-text strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(max-width:860px){.header-actions .hide-sm{display:none}}.subscribe-btn{background:linear-gradient(135deg,#f59e0b,#ea580c);box-shadow:0 8px 18px -8px #ea580c}.avatar{position:relative}.avatar-star{position:absolute;bottom:-4px;inset-inline-end:-4px;font-size:.7rem;font-style:normal}.tabs button.locked{color:var(--muted)}.tab-lock{margin-inline-end:5px;font-size:.85em}.preview-flag{position:absolute;top:10px;inset-inline-start:10px;background:#00000059;color:#fff;font-size:.74rem;font-weight:800;padding:2px 10px;border-radius:999px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.premium-lock{text-align:center;background:var(--surface);border:1px dashed color-mix(in srgb,#f59e0b 60%,var(--line));border-radius:22px;padding:clamp(24px,4vw,44px);box-shadow:var(--shadow);max-width:620px;margin:0 auto}.premium-lock.compact{padding:16px;box-shadow:none;max-width:none;border-radius:14px}.premium-lock h3{font-size:1.25rem;font-weight:800;margin:6px 0 4px}.premium-lock.compact h3{font-size:1rem}.premium-lock p{color:var(--muted);margin:0 0 14px}.premium-icon{font-size:2.4rem;line-height:1}.premium-lock.compact .premium-icon{font-size:1.6rem}.premium-perks{list-style:none;padding:0;margin:0 0 18px;display:grid;gap:6px;font-weight:700}.premium-btn{background:linear-gradient(135deg,#f59e0b,#ea580c);box-shadow:0 10px 22px -10px #ea580c;padding:12px 24px}.hs-shelf.locked{opacity:.55}.hs-shelf.locked:hover,.hs-shelf.locked.tipped{opacity:1;border-color:#f59e0b;background:#f59e0b14}.hs-lock{position:absolute;top:2px;right:2px;font-size:13px;line-height:1;filter:drop-shadow(0 1px 1px rgba(0,0,0,.3))}.tip-action.locked{color:#d97706}.pricing-page,.checkout-page,.admin-page{max-width:1040px;margin:0 auto}.pricing-head{text-align:center;margin-bottom:24px}.pricing-head h1{font-size:clamp(1.7rem,3.6vw,2.4rem);font-weight:800}.pricing-head p{color:var(--muted);margin:6px 0 0}.pricing-head .feedback{display:inline-block;margin-top:14px}.plan-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;align-items:stretch;margin-top:18px}.plan-card{position:relative;display:flex;flex-direction:column;gap:10px;background:var(--surface);border:1.5px solid var(--line);border-radius:22px;padding:26px 22px;box-shadow:var(--shadow)}.plan-card.featured{border-color:#f59e0b;box-shadow:0 0 0 4px #f59e0b1f,var(--shadow-lg)}.plan-card.mine{border-color:var(--ok)}.plan-flag{position:absolute;top:-12px;left:50%;transform:translate(-50%);background:linear-gradient(135deg,#f59e0b,#ea580c);color:#fff;font-size:.75rem;font-weight:800;padding:3px 12px;border-radius:999px;white-space:nowrap}.plan-card h2{font-size:1.3rem;font-weight:800}.plan-desc{color:var(--muted);margin:0;font-size:.92rem}.plan-price{display:flex;align-items:baseline;gap:6px;margin:4px 0}.plan-price strong{font-size:2.4rem;font-weight:800;line-height:1}.plan-price .plan-quote{font-size:1.4rem}.plan-price span{color:var(--muted);font-weight:700}.plan-features{list-style:none;padding:0;margin:0 0 8px;display:grid;gap:6px;flex:1}.plan-card .btn{width:100%}.plan-note{color:var(--muted);font-size:.85rem;margin:0;text-align:center}.back-link{display:inline-flex;gap:6px;color:var(--muted);font-weight:700;text-decoration:none;margin-bottom:8px}.checkout-page h1{font-size:1.8rem;font-weight:800}.checkout-sum{display:flex;justify-content:space-between;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px 18px;margin:12px 0 18px;font-weight:700}.checkout-sum strong{font-size:1.2rem}.checkout-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}.checkout-grid .panel+.panel{margin-top:0}.checkout-grid form{display:grid;gap:12px}.checkout-grid h3{margin-bottom:4px}.checkout-grid .muted{margin:0 0 8px;font-size:.9rem}.pay-box{display:flex;gap:16px;align-items:center;flex-wrap:wrap}.pay-qr{border-radius:14px;border:1px solid var(--line);background:#fff;padding:6px;width:180px;height:180px}.pay-lines{display:grid;gap:12px;flex:1;min-width:200px}.pay-lines small{display:block;color:var(--muted);font-weight:700}.pay-lines strong{font-size:1.1rem}.instapay-btn{background:linear-gradient(135deg,#5b2a86,#2d1b69)}.field input[type=file]{padding:8px;font-size:.9rem}.shot-preview{max-width:160px;border-radius:10px;border:1px solid var(--line)}.checkout-done{text-align:center;max-width:520px;margin:30px auto;padding:36px}.checkout-done h1{margin:8px 0}.admin-page h1{font-size:1.8rem;font-weight:800}.req-list{display:grid;gap:12px}.req-card{display:flex;gap:16px;align-items:center;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);border-inline-start:4px solid #f59e0b;border-radius:16px;padding:14px 18px;box-shadow:var(--shadow-sm)}.req-card.approved{border-inline-start-color:var(--ok)}.req-card.rejected{border-inline-start-color:var(--danger)}.req-main{flex:1;min-width:220px;display:grid;gap:4px}.req-meta{display:flex;gap:10px;flex-wrap:wrap;align-items:center;font-size:.88rem}.req-ref code{background:var(--surface-2);border:1px solid var(--line);padding:1px 8px;border-radius:6px;font-weight:700}.req-shot{border:0;padding:0;background:none;cursor:zoom-in}.req-shot img{width:70px;height:70px;object-fit:cover;border-radius:10px;border:1px solid var(--line)}.req-actions{display:flex;gap:8px}.shot-zoom{position:fixed;top:0;right:0;bottom:0;left:0;z-index:80;background:#000000b3;border:0;display:grid;place-items:center;cursor:zoom-out;padding:20px}.shot-zoom img{max-width:100%;max-height:100%;border-radius:12px}.sub-card .btn{margin-top:6px}@media(max-width:760px){.checkout-grid{grid-template-columns:1fr}}.eyebrow-link{text-decoration:none;color:inherit}.eyebrow-link:hover{background:#ffffff2e}.eyebrow-change{opacity:.7;font-weight:600}.chip-link{text-decoration:none}.chip-link:hover{background:#ffffff3d}.grade-chip{white-space:nowrap}.select{width:100%;padding:11px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface-2);font-size:1rem}.select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 20%,transparent)}.select[aria-invalid=true]{border-color:var(--danger)}.lesson-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.lesson-link{display:inline-flex;align-items:center;gap:8px;text-decoration:none;padding:5px 12px 5px 6px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-weight:700;font-size:.88rem;transition:border-color .15s,transform .15s}[dir=rtl] .lesson-link{padding:5px 6px 5px 12px}.lesson-link:hover{border-color:var(--unit-color);transform:translateY(-1px)}.lesson-link .arrow{color:var(--unit-color)}.lesson-no{width:24px;height:24px;border-radius:50%;display:inline-grid;place-items:center;background:var(--unit-soft);color:var(--unit-color);font-size:.78rem;flex:none}.grades-page{max-width:1100px;margin:0 auto}.stage-block{margin-bottom:30px}.grade-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.grade-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:var(--shadow-sm)}.grade-card.live{box-shadow:var(--shadow)}.grade-card.mine{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 16%,transparent),var(--shadow)}.grade-top{display:flex;align-items:center;gap:10px;margin-bottom:12px}.grade-top h3{font-size:1.1rem;font-weight:800;flex:1}.grade-no{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-weight:800;color:#fff;background:linear-gradient(135deg,#2f7bff,#6a3fd0);flex:none}.grade-card:not(.live) .grade-no{background:var(--line);color:var(--muted)}.book-list{display:grid;gap:6px}.book-item{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:8px 12px;border-radius:12px;font-weight:700;font-size:.9rem}.book-item small{font-weight:600;font-size:.76rem}.book-item.live{text-decoration:none;background:color-mix(in srgb,var(--brand) 10%,transparent);color:var(--brand);border:1px solid color-mix(in srgb,var(--brand) 30%,transparent)}.book-item.live:hover{background:color-mix(in srgb,var(--brand) 16%,transparent)}.book-item.soon{color:var(--muted);background:var(--surface-2);border:1px dashed var(--line)}.lesson-page .lab-hero{margin-bottom:14px}.lesson-nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.lesson-nav a{text-decoration:none;padding:7px 14px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-weight:700;font-size:.9rem}.lesson-nav a:hover{border-color:var(--unit-color);color:var(--unit-color)}.lesson-section{margin-bottom:30px;scroll-margin-top:90px}.summary-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}.summary-grid .panel+.panel{margin-top:0}.summary-card{border-top:4px solid var(--unit-color)}.summary-card ul{margin:0;padding-inline-start:20px;display:grid;gap:6px}.summary-card .eq{font-size:1rem;margin-top:10px}.terms-card{margin-top:14px}.terms{margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px}.terms div{background:var(--surface-2);border-radius:12px;padding:10px 12px;border:1px solid var(--line)}.terms dt{font-weight:800;color:var(--unit-color)}.terms dd{margin:2px 0 0;font-size:.9rem;color:var(--ink-soft)}.quiz-bar{position:sticky;top:72px;z-index:5;display:flex;align-items:center;gap:16px;flex-wrap:wrap;background:color-mix(in srgb,var(--surface) 92%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:14px;padding:10px 16px;margin-bottom:12px;font-weight:700}.quiz-progress{flex:1;min-width:120px;height:8px;border-radius:4px;background:var(--line);overflow:hidden}.quiz-progress i{display:block;height:100%;background:linear-gradient(90deg,var(--fill-a),var(--fill-b));transition:width .3s}.quiz-list{list-style:none;margin:0;padding:0;display:grid;gap:12px;counter-reset:q}.quiz-q{counter-increment:q;border-inline-start:4px solid var(--line)}.quiz-q.panel+.quiz-q.panel{margin-top:0}.quiz-q.ok{border-inline-start-color:var(--ok)}.quiz-q.bad{border-inline-start-color:var(--danger)}.quiz-text{margin:0 0 10px;font-weight:700}.quiz-text:before{content:counter(q) ". ";color:var(--unit-color)}.quiz-options{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px}.quiz-options.tf{grid-template-columns:repeat(2,minmax(0,160px))}.quiz-opt{display:flex;align-items:center;gap:10px;text-align:start;padding:10px 12px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface-2);cursor:pointer;font-weight:600;transition:border-color .15s,background .15s}.quiz-opt:hover:not(:disabled){border-color:var(--unit-color)}.quiz-opt:disabled{cursor:default}.quiz-opt.correct{border-color:var(--ok);background:var(--ok-soft);color:var(--ok)}.quiz-opt.chosen-wrong{border-color:var(--danger);background:color-mix(in srgb,var(--danger) 10%,transparent);color:var(--danger)}.quiz-opt.dim{opacity:.55}.opt-letter{width:26px;height:26px;border-radius:8px;display:grid;place-items:center;background:var(--surface);border:1px solid var(--line);font-weight:800;font-size:.8rem;flex:none}.quiz-explain{margin:10px 0 0;font-size:.9rem;color:var(--ink-soft);background:var(--surface-2);border-radius:10px;padding:8px 12px}.chip-btn{border:1.5px solid var(--line);background:var(--surface-2);border-radius:999px;padding:5px 12px;font-weight:700;font-size:.85rem;cursor:help}.chip-btn:hover,.chip-btn:focus-visible{border-color:var(--unit-color);color:var(--unit-color)}.smoke-chips{display:flex;flex-wrap:wrap;gap:6px}.type-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px}.type-card{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:10px 12px}.type-card p{margin:4px 0 0;font-size:.85rem;color:var(--muted)}.ember{animation:ember .6s infinite alternate}@keyframes ember{0%{fill:#ff6a2a}to{fill:#ffb347}}.bottle.squeeze{animation:squeeze .5s ease-in-out}@keyframes squeeze{40%{transform:scaleX(.86)}}.spin-slow{transform-box:fill-box;transform-origin:center;animation:spin 2s linear infinite}.flow-water{animation:flow 1s linear infinite}.pulse-soft{animation:pulse-soft 1.6s ease-in-out infinite}@keyframes pulse-soft{50%{opacity:.55}}.app-list{display:grid;gap:8px}.app-row{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:8px 12px}.app-row.off{opacity:.55}.app-row input[type=number]{width:70px;padding:6px 8px;border-radius:8px;border:1px solid var(--line);background:var(--surface)}.app-icon{font-size:1.4rem}.app-name{font-weight:700}.app-name small{display:block;color:var(--muted);font-weight:600}.pedigree text{font-family:inherit}.bone-label{font-size:11px;font-weight:700}.missions{margin-bottom:14px;padding:12px 16px;border-inline-start:4px solid var(--unit-color, 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