:root{--color-bg: #faf7f0;--color-surface: #ffffff;--color-surface-2: #f2eee4;--color-ink: #1c2a24;--color-ink-soft: #4c5a52;--color-muted: #5c6861;--color-primary: #14684d;--color-primary-strong: #0f4f3a;--color-primary-soft: #e0f0e8;--color-accent: #e8a33d;--color-accent-soft: #fdf0d7;--color-danger: #b3402e;--color-danger-soft: #fbeae6;--color-success: #197a4d;--color-border: #ddd6c8;--color-border-strong: #97835c;--color-focus: #0f6f5e;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--radius-full: 999px;--shadow-sm: 0 1px 3px rgba(28, 42, 36, .08);--shadow-md: 0 6px 20px rgba(28, 42, 36, .1);--shadow-lg: 0 16px 40px rgba(28, 42, 36, .16);--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--space-7: 48px;--space-8: 64px;--font-body: "Segoe UI", system-ui, -apple-system, sans-serif;--font-size-sm: .875rem;--font-size-md: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.375rem;--font-size-2xl: 1.75rem;--font-size-3xl: 2.25rem;--focus-ring: 0 0 0 3px var(--color-focus)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font-body);font-size:var(--font-size-md);line-height:1.6;color:var(--color-ink);background:var(--color-bg);-webkit-font-smoothing:antialiased}body[data-market]{background:var(--color-bg)}h1,h2,h3,h4{line-height:1.25;margin:0 0 var(--space-3)}a{color:var(--color-primary);text-decoration:none;font-weight:600}a:hover{text-decoration:underline}button{font-family:inherit}:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px;border-radius:var(--radius-sm)}.container{max-width:1080px;margin-inline:auto;padding-inline:var(--space-4)}.container-narrow{max-width:640px;margin-inline:auto;padding-inline:var(--space-4)}.row{display:flex;align-items:center;gap:var(--space-3);flex-wrap:wrap}.column{display:flex;flex-direction:column;gap:var(--space-3)}.stack>*+*{margin-block-start:var(--space-4)}.spread{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);flex-wrap:wrap}.center{text-align:center}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:12px 22px;border-radius:var(--radius-full);border:2px solid transparent;background:var(--color-primary);color:#fff;font-size:var(--font-size-md);font-weight:700;cursor:pointer;min-height:48px;transition:transform .08s ease,background .15s ease,box-shadow .15s 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ease}.card-interactive:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.card-pad-sm{padding:var(--space-4)}.input,.select,.textarea{width:100%;padding:12px 14px;border:2px solid var(--color-border-strong);border-radius:var(--radius-md);font-size:var(--font-size-md);font-family:inherit;color:var(--color-ink);background:var(--color-surface);min-height:48px}.input:focus,.select:focus,.textarea:focus{border-color:var(--color-primary);outline:2px solid var(--color-focus);outline-offset:1px}.label{display:block;font-weight:700;margin-block-end:var(--space-1);font-size:var(--font-size-sm)}.field{margin-block-end:var(--space-4)}.error-text{color:var(--color-danger);font-size:var(--font-size-sm);font-weight:600}.alert{padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-weight:600;border:1px solid transparent}.alert-error{background:var(--color-danger-soft);color:var(--color-danger);border-color:#e8b4a8}.alert-success{background:var(--color-primary-soft);color:var(--color-primary-strong);border-color:#b8dccb}.alert-warn{background:var(--color-accent-soft);color:#6b4a10;border-color:#ecd9ae}.badge{display:inline-flex;align-items:center;gap:var(--space-1);padding:3px 10px;border-radius:var(--radius-full);font-size:.78rem;font-weight:700;background:var(--color-surface-2);color:var(--color-ink-soft)}.badge-success{background:var(--color-primary-soft);color:var(--color-primary-strong)}.badge-danger{background:var(--color-danger-soft);color:var(--color-danger)}.badge-accent{background:var(--color-accent-soft);color:#6b4a10}.nav{background:var(--color-surface);border-block-end:1px solid var(--color-border);position:sticky;top:0;z-index:50}.nav-inner{display:flex;align-items:center;gap:var(--space-4);min-height:64px}.nav-brand{font-size:var(--font-size-lg);font-weight:800;color:var(--color-primary);white-space:nowrap}.nav-links{display:flex;align-items:center;gap:var(--space-4);flex-wrap:wrap}.nav-links a{color:var(--color-ink-soft);font-weight:600;padding-block:var(--space-2)}.nav-links a.active{color:var(--color-primary)}.nav-spacer{flex:1}.footer{border-block-start:1px solid var(--color-border);padding-block:var(--space-6);margin-block-start:var(--space-8);background:var(--color-surface-2);color:var(--color-ink-soft);font-size:var(--font-size-sm)}.hero{padding-block:var(--space-8) var(--space-7);text-align:center}.hero h1{font-size:clamp(1.9rem,4.5vw,3rem);max-width:720px;margin-inline:auto}.hero p{font-size:var(--font-size-lg);color:var(--color-ink-soft);max-width:560px;margin-inline:auto}.hero-actions{display:flex;gap:var(--space-3);justify-content:center;flex-wrap:wrap;margin-block-start:var(--space-5)}.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:var(--space-5)}.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:var(--space-5)}.muted{color:var(--color-muted)}.small{font-size:var(--font-size-sm)}.mt-1{margin-block-start:var(--space-1)}.mt-2{margin-block-start:var(--space-2)}.mt-3{margin-block-start:var(--space-3)}.mt-4{margin-block-start:var(--space-4)}.mt-5{margin-block-start:var(--space-5)}.mt-6{margin-block-start:var(--space-6)}.mb-2{margin-block-end:var(--space-2)}.mb-3{margin-block-end:var(--space-3)}.mb-4{margin-block-end:var(--space-4)}.app-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.app-sidebar{background:var(--color-primary-strong);color:#e8f2ec;padding:var(--space-5) var(--space-4);display:flex;flex-direction:column;gap:var(--space-2)}.app-sidebar a{color:#cfe3d8;display:flex;align-items:center;gap:var(--space-3);padding:10px 14px;border-radius:var(--radius-md);font-weight:600}.app-sidebar a:hover{background:#ffffff14;text-decoration:none}.app-sidebar a.active{background:var(--color-primary);color:#fff}.app-sidebar .brand{color:#fff;font-weight:800;font-size:var(--font-size-lg);margin-block-end:var(--space-5)}.app-main{padding:var(--space-6);max-width:960px}@media(max-width:860px){.app-shell{grid-template-columns:1fr}.app-sidebar{flex-direction:row;flex-wrap:wrap;align-items:center}.app-sidebar .brand{margin-block-end:0;margin-inline-end:auto}.app-main{padding:var(--space-4)}}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:var(--space-4)}.stat{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-4);text-align:center}.stat-value{font-size:var(--font-size-2xl);font-weight:800;color:var(--color-primary)}.stat-label{font-size:var(--font-size-sm);color:var(--color-muted);font-weight:600}.progress-track{height:10px;background:var(--color-surface-2);border-radius:var(--radius-full);overflow:hidden}.progress-fill{height:100%;background:var(--color-primary);border-radius:var(--radius-full);transition:width .3s ease}.timer{font-variant-numeric:tabular-nums;font-weight:800;font-size:var(--font-size-xl);color:var(--color-primary)}.timer-danger{color:var(--color-danger)}.question-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-sm);max-width:760px;margin-inline:auto}.answer-option{display:flex;align-items:flex-start;gap:var(--space-3);width:100%;text-align:start;padding:14px 16px;border:2px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);font-size:var(--font-size-md);font-family:inherit;cursor:pointer;transition:border-color .12s ease,background .12s ease;min-height:52px}.answer-option:hover{border-color:var(--color-primary)}.answer-option.selected{border-color:var(--color-primary);background:var(--color-primary-soft);font-weight:600}.answer-marker{width:26px;height:26px;border-radius:var(--radius-full);border:2px solid var(--color-border);display:inline-flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700;flex-shrink:0}.answer-option.selected .answer-marker{border-color:var(--color-primary);background:var(--color-primary);color:#fff}.answer-option.correct .answer-marker{background:var(--color-success);border-color:var(--color-success);color:#fff}.answer-option.incorrect .answer-marker{background:var(--color-danger);border-color:var(--color-danger);color:#fff}.flashcard{min-height:300px;display:flex;align-items:center;justify-content:center;text-align:center;padding:var(--space-6);cursor:pointer;font-size:var(--font-size-xl);background:var(--color-surface);border:2px solid var(--color-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);-webkit-user-select:none;user-select:none}.eyebrow{margin:0 0 var(--space-2);color:var(--color-primary);font-size:var(--font-size-sm);font-weight:800;letter-spacing:.04em;text-transform:uppercase}.practice-mode-grid{margin-block-end:var(--space-5)}.practice-mode-card{display:flex;align-items:center;gap:var(--space-3);width:100%;text-align:start;border:2px solid var(--color-border);color:var(--color-ink)}.practice-mode-card.selected{border-color:var(--color-primary);background:var(--color-primary-soft)}.practice-mode-icon{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;flex:0 0 42px;border-radius:var(--radius-md);background:var(--color-surface-2);color:var(--color-primary);font-size:1.45rem;font-weight:800}.practice-mode-copy{display:flex;flex:1;flex-direction:column;gap:var(--space-1)}.practice-selection-card{margin-block-end:var(--space-5)}.category-list{display:grid;gap:var(--space-2);margin-block-start:var(--space-4)}.category-choice{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);width:100%;padding:var(--space-4);border:2px solid 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.answer-option{color:var(--color-ink)}.answer-option.correct{border-color:var(--color-success);background:#e3f5ea}.answer-option.incorrect{border-color:var(--color-danger);background:var(--color-danger-soft)}.result-score{display:inline-flex;align-items:center;justify-content:center;width:150px;height:150px;margin-block:var(--space-5);border:10px solid var(--color-primary);border-radius:var(--radius-full);color:var(--color-primary);font-size:2.5rem;font-weight:800}.results-page{padding-block:var(--space-7)}.results-actions{justify-content:center}.result-review-list{display:grid;gap:var(--space-3)}.result-review-item{padding-block:var(--space-3);border-block-end:1px solid var(--color-border)}.result-review-item:last-child{border-block-end:0}.site-header{background:var(--color-surface);border-block-end:1px solid var(--color-border)}.paywall-main{max-width:900px;padding-block:var(--space-7)}.paywall-heading{max-width:640px;margin-inline:auto}.paywall-usage{max-width:700px;margin:var(--space-5) auto 0}.paywall-features{max-width:700px;margin:var(--space-5) auto}.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-3) var(--space-5)}.feature-row{display:flex;align-items:flex-start;gap:var(--space-2)}.feature-check{color:var(--color-success);font-weight:800}.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:var(--space-5);max-width:700px;margin-inline:auto}.product-card{display:flex;flex-direction:column;gap:var(--space-2);padding:var(--space-5);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-sm)}.product-card-featured{border:2px solid var(--color-primary);box-shadow:var(--shadow-md)}.product-price{min-height:48px;margin-block:var(--space-2);color:var(--color-primary-strong);font-size:var(--font-size-lg);font-weight:800}.paywall-footer-actions{display:flex;justify-content:center;gap:var(--space-3);flex-wrap:wrap;margin-block-start:var(--space-5)}.profile-main,.admin-main{max-width:1180px}.profile-card{max-width:760px;margin-block-end:var(--space-5)}.language-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-2)}.language-option{display:flex;flex-direction:column;gap:var(--space-1);padding:var(--space-3);border:2px solid 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button.active{border-block-end-color:var(--color-primary);color:var(--color-primary)}.admin-search,.admin-filter-row{display:flex;align-items:center;gap:var(--space-2)}.admin-search .input{min-width:220px}.admin-filter-row{margin-block-end:var(--space-4)}.admin-filter-row .input{flex:1}.table-scroll{overflow-x:auto}.admin-actions{display:flex;gap:var(--space-2);flex-wrap:wrap}.admin-config-form{max-width:760px}.config-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 var(--space-4)}.registration-bars{display:flex;align-items:end;gap:3px;height:130px;padding-block-start:var(--space-4)}.registration-bar{display:flex;align-items:end;flex:1;height:100%;min-width:3px;background:var(--color-surface-2)}.registration-bar span{display:block;width:100%;min-height:4px;background:var(--color-primary)}.spinner{width:28px;height:28px;border:3px solid var(--color-primary-soft);border-block-start-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);padding-block:var(--space-8)}.table{width:100%;border-collapse:collapse;font-size:var(--font-size-sm)}.table th,.table td{text-align:start;padding:10px 12px;border-block-end:1px solid var(--color-border)}.table th{font-weight:700;color:var(--color-ink-soft);background:var(--color-surface-2)}.table tr:hover td{background:#fbf8f1}.empty-state{text-align:center;padding-block:var(--space-7);color:var(--color-muted)}.divider{border:none;border-block-start:1px solid var(--color-border);margin-block:var(--space-5)}.kbd{background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:4px;padding:1px 6px;font-size:.8rem;font-weight:700}.lang-switch{display:inline-flex;border:2px solid var(--color-border);border-radius:var(--radius-full);overflow:hidden}.lang-switch button{border:none;background:var(--color-surface);padding:6px 12px;font-weight:700;cursor:pointer;font-size:var(--font-size-sm);color:var(--color-ink-soft)}.lang-switch button[aria-pressed=true]{background:var(--color-primary);color:#fff}.auth-lang{display:flex;justify-content:center;margin-block-end:var(--space-4)}.nav-actions{display:flex;align-items:center;gap:var(--space-3)}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--space-5);background:var(--color-bg)}.auth-card{width:100%;max-width:440px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-md)}.auth-header{text-align:center;margin-block-end:var(--space-5)}.auth-header .nav-brand{display:block;font-size:var(--font-size-xl);margin-block-end:var(--space-4)}.auth-header h1{font-size:var(--font-size-2xl);margin-block-end:var(--space-2)}.auth-form{display:flex;flex-direction:column;gap:0}.auth-form .field:last-of-type{margin-block-end:var(--space-3)}.auth-form .row{font-size:var(--font-size-sm)}.auth-form input[type=checkbox]{width:16px;height:16px;accent-color:var(--color-primary)}@media(max-width:620px){.feature-grid,.config-grid,.language-options{grid-template-columns:1fr}.admin-search,.admin-filter-row{align-items:stretch;flex-direction:column}.admin-search .input,.admin-filter-row .input,.admin-filter-row .select,.admin-search .btn,.admin-filter-row .btn{width:100%}.practice-header{align-items:flex-start;flex-direction:column;padding-block:var(--space-3)}}@media(max-width:480px){.auth-card{padding:var(--space-5);border-radius:var(--radius-md)}}:root{--color-bg: #f4f7f5;--color-surface: #ffffff;--color-surface-2: #edf3ef;--color-ink: #14231d;--color-ink-soft: #53645c;--color-muted: #7c8b83;--color-primary: #087f5b;--color-primary-strong: #07543f;--color-primary-soft: #dff5e9;--color-accent: #f2b84b;--color-accent-soft: #fff2d5;--color-border: #dce7e0;--color-focus: #087f5b;--radius-sm: 10px;--radius-md: 14px;--radius-lg: 22px;--shadow-sm: 0 2px 8px rgba(16, 54, 38, .06);--shadow-md: 0 12px 30px rgba(16, 54, 38, .1);--shadow-lg: 0 24px 60px rgba(16, 54, 38, .16)}body{background:var(--color-bg)}.btn{box-shadow:0 6px 14px #087f5b2e;transition:transform .18s ease,background .18s ease,box-shadow .18s ease}.btn:hover{box-shadow:0 9px 20px #087f5b3d;transform:translateY(-1px)}.btn-secondary,.btn-ghost{box-shadow:none}.card{border-color:#dce7e0d9;box-shadow:var(--shadow-sm)}.landing-page{min-height:100vh;overflow:hidden;background:radial-gradient(circle at 80% 15%,rgba(223,245,233,.85),transparent 30%),var(--color-bg)}.landing-nav{display:flex;align-items:center;justify-content:space-between;min-height:82px;gap:var(--space-4)}.landing-brand{display:inline-flex;align-items:center;gap:10px;color:var(--color-ink);font-size:1rem;font-weight:800;letter-spacing:-.02em}.landing-brand:hover{text-decoration:none}.landing-brand-mark{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:11px;color:#fff;background:var(--color-primary);box-shadow:0 7px 16px #087f5b3d}.landing-nav-links{display:flex;align-items:center;gap:26px;font-size:var(--font-size-sm)}.landing-nav-links a{color:var(--color-ink-soft)}.landing-nav-links a:hover,.landing-nav-links .landing-sign-in{color:var(--color-primary)}.landing-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(400px,.9fr);align-items:center;gap:clamp(42px,8vw,104px);min-height:590px;padding-block:64px 88px}.landing-copy{position:relative;z-index:1}.landing-kicker{display:inline-flex;align-items:center;gap:8px;margin-block-end:20px;color:var(--color-primary);font-size:.76rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--color-accent);box-shadow:0 0 0 5px #f2b84b29}.landing-copy h1{max-width:640px;margin:0;color:var(--color-ink);font-size:clamp(2.8rem,6vw,5.2rem);line-height:.99;letter-spacing:-.065em}.landing-copy h1 em{color:var(--color-primary);font-style:normal}.landing-lede{max-width:520px;margin:26px 0 0;color:var(--color-ink-soft);font-size:1.16rem;line-height:1.7}.landing-actions{justify-content:flex-start;margin-block-start:32px}.landing-actions .btn{padding-inline:24px}.landing-proof{display:flex;flex-wrap:wrap;gap:20px;margin-block-start:34px;color:var(--color-muted);font-size:.78rem}.landing-proof span+span{border-inline-start:1px solid var(--color-border);padding-inline-start:20px}.landing-proof strong{display:block;color:var(--color-ink);font-size:1.05rem}.landing-preview{position:relative;min-height:420px;display:grid;place-items:center}.landing-glow{position:absolute;width:360px;height:360px;border-radius:50%;background:#c3ebd3b8;filter:blur(2px)}.preview-window{position:relative;width:min(100%,450px);overflow:hidden;border:8px solid rgba(255,255,255,.7);border-radius:25px;background:var(--color-surface);box-shadow:0 30px 70px #13432f2e,0 6px 18px #13432f14;transform:rotate(2deg)}.preview-window-bar{display:flex;align-items:center;gap:6px;padding:14px 17px;background:#f7faf8;border-block-end:1px solid var(--color-border)}.preview-window-bar>span{width:7px;height:7px;border-radius:50%;background:#d9e5de}.preview-window-bar>span:first-child{background:#f3b7a4}.preview-window-bar>span:nth-child(2){background:#f2d183}.preview-window-bar small{margin-inline-start:auto;color:var(--color-muted);font-size:.68rem}.preview-content{padding:26px}.preview-welcome,.preview-progress-head,.preview-next{display:flex;align-items:center;justify-content:space-between;gap:12px}.preview-welcome strong,.preview-progress-head span{display:block;margin-block-start:3px;font-size:1.05rem}.preview-avatar{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;color:var(--color-primary-strong);background:var(--color-primary-soft);font-size:.72rem;font-weight:800}.preview-progress{margin-block-start:28px;padding:18px;border-radius:16px;background:#f5faf7}.preview-progress-head strong{color:var(--color-primary);font-size:1.45rem}.preview-progress .progress-track{margin-block:12px 7px;height:8px}.preview-stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-block:18px}.preview-stat-row div{padding:13px 7px;border:1px solid var(--color-border);border-radius:12px;text-align:center}.preview-stat-row strong,.preview-stat-row span{display:block}.preview-stat-row strong{color:var(--color-ink);font-size:1.1rem}.preview-stat-row span{margin-block-start:2px;color:var(--color-muted);font-size:.64rem}.preview-next{padding:13px;border-radius:13px;background:var(--color-primary-strong);color:#fff}.preview-next-icon{display:grid;place-items:center;width:28px;height:28px;border-radius:9px;color:var(--color-primary-strong);background:var(--color-accent)}.preview-next div{flex:1}.preview-next .small{color:#add5c2}.preview-next strong{display:block;margin-block-start:1px;font-size:.82rem}.landing-features{padding-block:20px 90px}.landing-section-heading{margin-block-end:28px}.landing-section-heading .landing-kicker{margin-block-end:8px}.landing-section-heading h2{max-width:440px;margin:0;font-size:clamp(1.7rem,4vw,2.5rem);letter-spacing:-.04em}.landing-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.landing-feature-card{padding:26px;border:1px solid var(--color-border);border-radius:18px;background:#ffffffb8}.landing-feature-card h3{margin-block:20px 8px;font-size:1.12rem}.landing-feature-card p{margin:0;color:var(--color-ink-soft);font-size:.9rem;line-height:1.7}.feature-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:13px;font-size:1.3rem;font-weight:800}.feature-icon-mint{color:var(--color-primary);background:var(--color-primary-soft)}.feature-icon-gold{color:#936514;background:var(--color-accent-soft)}.feature-icon-lilac{color:#6b55a1;background:#eee8ff}.landing-footer{display:flex;justify-content:space-between;gap:20px;padding-block:24px 30px;border-block-start:1px solid var(--color-border);color:var(--color-muted);font-size:.78rem}.landing-footer a{color:var(--color-ink-soft)}.app-shell{background:#edf3ef;grid-template-columns:252px minmax(0,1fr)}.app-sidebar{position:sticky;top:0;height:100vh;padding:28px 18px 22px;background:linear-gradient(165deg,#07543f,#063f32)}.app-sidebar nav{display:grid;gap:6px}.app-sidebar a{padding:12px 14px;border:1px solid transparent;border-radius:13px}.app-sidebar a.active{background:#ffffff24;border-color:#ffffff1a}.app-sidebar .brand{display:block;padding:6px 10px;margin-block-end:26px;font-size:1rem;letter-spacing:-.02em}.app-main{width:100%;max-width:1180px;padding:42px clamp(22px,5vw,68px)}.app-main>.spread:first-child{align-items:flex-end;margin-block-end:30px}.app-main h1{font-size:clamp(1.8rem,3vw,2.5rem);letter-spacing:-.04em}.stat{padding:22px 16px;border:0;border-radius:17px;box-shadow:var(--shadow-sm);text-align:start}.stat-value{font-size:2rem;letter-spacing:-.04em}.stat-label{margin-block-start:4px}.app-main .alert{border-radius:15px}.auth-page{position:relative;overflow:hidden;background:radial-gradient(circle at 10% 15%,rgba(223,245,233,.9),transparent 28%),var(--color-bg)}.auth-page:before{position:absolute;width:340px;height:340px;border-radius:50%;content:"";right:-120px;bottom:-120px;background:#f2b84b29}.auth-card{position:relative;border:0;border-radius:24px;box-shadow:var(--shadow-lg)}.auth-header .nav-brand{color:var(--color-primary)}.input,.select,.textarea{border-color:var(--color-border);border-radius:13px;background:#fbfdfb}.question-card{border:0;box-shadow:var(--shadow-md)}.practice-page{background:#edf3ef}.practice-header{background:#ffffffe6;box-shadow:0 1px 0 var(--color-border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.practice-question-main{max-width:900px}.answer-option{border-color:var(--color-border);border-radius:14px}.answer-option:hover{box-shadow:0 5px 14px #10362614;transform:translateY(-1px)}.practice-mode-card{padding:18px}.practice-mode-card.selected{box-shadow:0 0 0 3px #087f5b1a}@media(max-width:860px){.landing-hero{grid-template-columns:1fr;min-height:auto;padding-block:50px 70px}.landing-copy{text-align:center}.landing-copy h1,.landing-lede{margin-inline:auto}.landing-actions,.landing-proof{justify-content:center}.landing-preview{min-height:390px}.app-shell{grid-template-columns:1fr}.app-sidebar{position:static;height:auto;flex-direction:row;align-items:center;flex-wrap:wrap;padding:12px 16px}.app-sidebar .brand{margin-block:0;margin-inline-start:0;margin-inline-end:auto}.app-sidebar nav{display:flex;gap:4px;overflow-x:auto}.app-sidebar nav a{white-space:nowrap;padding:9px 11px}.app-sidebar>.btn{order:3}}@media(max-width:620px){.landing-nav{min-height:70px}.landing-nav-links{gap:12px}.landing-nav-links a:not(.landing-sign-in){display:none}.landing-copy h1{font-size:clamp(2.65rem,14vw,4.3rem)}.landing-lede{font-size:1rem}.landing-feature-grid{grid-template-columns:1fr}.landing-footer{flex-direction:column}.landing-preview{min-height:350px}.preview-content{padding:18px}.preview-window{transform:none}.app-main{padding:28px 16px 40px}.app-sidebar nav a{font-size:.86rem}}@media(max-width:480px){.container,.container-narrow,.landing-nav{padding-inline:16px}.landing-brand{font-size:.88rem}.landing-brand-mark{width:30px;height:30px;border-radius:9px}.landing-hero{gap:18px;padding-block:34px 50px}.landing-kicker{margin-block-end:16px;font-size:.68rem;letter-spacing:.08em}.landing-actions{align-items:stretch;flex-direction:column;margin-block-start:26px}.landing-actions .btn{width:100%}.landing-proof{align-items:flex-start;gap:12px;justify-content:space-between;margin-block-start:26px}.landing-proof span+span{padding-inline-start:12px}.landing-proof strong{font-size:.96rem}.landing-proof span{font-size:.7rem}.landing-preview{min-height:300px;margin-inline:-5px}.preview-window{border-width:5px;border-radius:19px}.preview-window-bar{padding:10px 12px}.preview-content{padding:15px}.preview-progress{margin-block-start:18px;padding:14px}.preview-stat-row{gap:5px;margin-block:13px}.preview-stat-row div{padding:10px 4px}.preview-stat-row span{font-size:.57rem}.preview-next{padding:10px}.preview-next strong{font-size:.74rem}.app-sidebar{align-items:flex-start}.app-sidebar .brand{flex:1 0 100%;margin-block-end:8px}.app-sidebar nav{width:100%}.app-sidebar nav a{flex:0 0 auto}.app-sidebar>.btn{width:100%;margin-block-start:4px}.app-main>.spread:first-child{align-items:flex-start;flex-direction:column}.app-main>.spread:first-child>.btn{width:100%}.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stat{padding:16px 13px}.stat-value{font-size:1.65rem}.question-card{padding:20px 16px}.practice-header{padding-inline:16px}.practice-header .nav-brand{font-size:1rem}.practice-header .row{width:100%;justify-content:space-between}.answer-option{padding:13px 12px}}.badge-family{display:flex;flex-direction:column;gap:var(--space-2);margin-top:var(--space-4)}.badge-family-name{font-size:var(--space-4);margin:0;color:var(--color-ink-soft)}.badge-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:var(--space-3)}.badge-tile{display:flex;align-items:flex-start;gap:var(--space-3);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface)}.badge-tile.earned{border-color:var(--color-primary);background:var(--color-primary-soft)}.badge-tile.locked .badge-tile-icon{filter:grayscale(1);opacity:.55}.badge-tile-icon{font-size:26px;line-height:1.1}.badge-tile-text{display:flex;flex-direction:column;gap:2px;min-width:0}.badge-unlocked{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);border:1px solid var(--color-primary);border-radius:var(--radius-md);background:var(--color-primary-soft);margin-top:var(--space-4);text-align:start}.input-sm{width:90px;padding:6px 8px;font-size:14px}.social-signin{display:flex;flex-direction:column;align-items:center;gap:var(--space-3);margin-top:var(--space-4)}.social-divider{display:flex;align-items:center;gap:var(--space-3);width:100%;color:var(--color-muted);font-size:13px}.social-divider:before,.social-divider:after{content:"";flex:1;height:1px;background:var(--color-border)}.social-google{display:flex;justify-content:center;min-height:44px}.social-apple{width:100%;max-width:320px}.consent-row{display:flex;align-items:flex-start;gap:var(--space-3);margin-block:var(--space-2);font-size:var(--font-size-sm);color:var(--color-ink)}.consent-row input[type=checkbox]{flex:none;width:18px;height:18px;margin-block-start:2px;accent-color:var(--color-primary)}.consent-links{margin:0 0 var(--space-2);color:var(--color-muted)}.consent-list{display:grid;gap:var(--space-2);margin:var(--space-4) 0}.consent-list div{display:flex;flex-wrap:wrap;justify-content:space-between;gap:var(--space-2)}.consent-list dt,.consent-list dd{margin:0}.policy-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:grid;place-items:center;padding:var(--space-4);background:#0c1a148c}.policy-dialog{width:min(100%,30rem);background:var(--color-surface);color:var(--color-ink);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:var(--space-6)}.policy-dialog h2{margin-top:0;text-wrap:balance}.policy-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:var(--space-3);margin-top:var(--space-4)}.funnel{display:grid;gap:var(--space-3);margin:0;padding:0;list-style:none}.funnel-step{display:grid;gap:var(--space-1)}.funnel-label{display:flex;justify-content:space-between;gap:var(--space-3);font-variant-numeric:tabular-nums}.funnel-track{height:10px;border-radius:var(--radius-full);background:var(--color-primary-soft);overflow:hidden}.funnel-track span{display:block;height:100%;border-radius:inherit;background:var(--color-primary)}.funnel-period{display:flex;align-items:center;gap:var(--space-2)}.system-list{display:grid;gap:var(--space-3);margin:0}.system-list div{display:grid;grid-template-columns:minmax(10rem,14rem) 1fr;gap:var(--space-3)}.system-list dt{color:var(--color-muted)}.system-list dd{margin:0;overflow-wrap:anywhere}@media(max-width:620px){.system-list div{grid-template-columns:1fr;gap:var(--space-1)}}.purchase-terms{display:grid;gap:var(--space-2);max-width:44rem;margin:var(--space-5) auto 0;text-align:center}.purchase-terms p{margin:0}.collection-notice{margin:0 0 var(--space-3)}.subscription-controls{display:grid;gap:var(--space-2)}.import-errors{display:grid;gap:var(--space-1);max-height:16rem;margin:var(--space-2) 0 0;padding-inline-start:var(--space-5);overflow-y:auto}