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sans-serif;border-radius:8px}textarea{resize:vertical;min-height:4.5rem}input[type=text]:focus-visible,textarea:focus-visible,button:focus-visible{outline:2px solid var(--color-mark);outline-offset:2px}button{padding:var(--space-2) var(--space-4);border:1px solid var(--color-border);cursor:pointer;font:inherit;color:var(--color-ink);margin-right:var(--space-2);margin-bottom:var(--space-2);background:0 0;border-radius:8px;font-weight:600}button:hover{background:var(--color-hover)}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-ink);border-color:var(--color-ink);color:var(--color-paper)}.btn-primary:hover{opacity:.88;background:var(--color-ink)}.btn-secondary{border-color:var(--color-ink);color:var(--color-ink);background:0 0}.error{color:var(--color-incorrect);font-weight:600}.success{color:var(--color-correct);font-weight:600}.muted{opacity:.7;font-size:.9rem}.answer-examples{margin:var(--space-1) 0 var(--space-3);padding-left:1.25rem}.answer-examples li{margin-bottom:var(--space-1)}.answer-examples-note{font-family:var(--font-mono), ui-monospace, monospace;opacity:.65;margin-top:0;font-size:.78rem}.stamp{--stamp-rotate:-4deg;font-family:var(--font-display), system-ui, sans-serif;letter-spacing:.04em;text-transform:uppercase;padding:var(--space-2) var(--space-5);transform:rotate(var(--stamp-rotate));margin:var(--space-2) 0 var(--space-4);border:3px solid;border-radius:6px;font-size:1.3rem;font-weight:700;animation:.15s ease-out stamp-in;display:inline-block}.stamp-correct{color:var(--color-correct)}.stamp-incorrect{--stamp-rotate:3deg;color:var(--color-incorrect)}@keyframes stamp-in{0%{opacity:0;transform:scale(1.4)rotate(0)}to{transform:scale(1) rotate(var(--stamp-rotate));opacity:1}}@media (prefers-reduced-motion:reduce){.stamp{animation:none}}.chat-history{margin-bottom:var(--space-3)}.chat-msg{margin:0 0 var(--space-2);padding:var(--space-1) 0 var(--space-1) var(--space-3);border-left:2px solid var(--color-border);font-size:.9rem}.chat-msg-assistant{border-left-color:var(--color-ink)}.progress{font-family:var(--font-mono), ui-monospace, monospace;letter-spacing:.03em;text-transform:uppercase;opacity:.7;margin-bottom:var(--space-2);font-size:.8rem}.progress-bar{background:var(--color-border);height:4px;margin-bottom:var(--space-4);border-radius:999px;overflow:hidden}.progress-bar-fill{background:var(--color-ink);opacity:.35;border-radius:inherit;height:100%;transition:width .2s ease-out}@media (prefers-reduced-motion:reduce){.progress-bar-fill{transition:none}}.stats-grid{gap:var(--space-3);margin-bottom:var(--space-4);grid-template-columns:1fr 1fr;display:grid}@media (min-width:600px){.stats-grid{grid-template-columns:repeat(4,1fr)}}.stat-box{background:var(--color-card);border:1px solid var(--color-border);padding:var(--space-4) var(--space-3);text-align:center;box-shadow:var(--shadow-card);border-radius:12px}.stat-box .value{font-family:var(--font-display), system-ui, sans-serif;font-variant-numeric:tabular-nums;font-size:2.2rem;font-weight:700;line-height:1;display:block}.stat-box .value-positive{color:var(--color-correct)}.stat-box .label{font-family:var(--font-mono), ui-monospace, monospace;letter-spacing:.08em;text-transform:uppercase;opacity:.65;margin-top:var(--space-1);font-size:.7rem;display:block}mark{background:var(--color-mark-tint);color:var(--color-ink);border-radius:3px;padding:0 .15em;font-weight:600}.link-btn{margin:0 0 var(--space-3);color:var(--color-ink);text-underline-offset:2px;opacity:.7;cursor:pointer;background:0 0;border:none;padding:0;font-size:.9rem;font-weight:500;text-decoration:underline;display:block}.link-btn:hover{opacity:1;background:0 0}.hidden{display:none}.play-audio-btn{width:1.9rem;height:1.9rem;margin:0 0 0 var(--space-1);border:1px solid var(--color-ink);color:var(--color-ink);vertical-align:middle;background:0 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h1{font-size:3.2rem}}.landing-hero__accent{color:var(--color-mark)}.landing-hero__sub{opacity:.85;margin-bottom:var(--space-5);max-width:48ch;font-size:1.05rem}.landing-hero__cta{padding:var(--space-3) var(--space-6);margin:0;font-size:1rem;text-decoration:none;display:inline-block}.landing-review{border:1px solid var(--color-border);background:var(--color-card);box-shadow:var(--shadow-card);border-radius:14px;overflow:hidden;transform:rotate(-1.5deg)}.landing-review__chrome{align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-bottom:1px solid var(--color-border);background:var(--color-hover);display:flex}.landing-review__dot{background:var(--color-border);border-radius:999px;width:.55rem;height:.55rem}.landing-review__url{font-family:var(--font-mono), ui-monospace, monospace;letter-spacing:.05em;opacity:.55;margin-left:auto;font-size:.68rem}.landing-review__body{padding:var(--space-5)}.landing-review__sentence{margin:0 0 var(--space-4);font-size:1.05rem;line-height:1.5}.landing-review__field{border-left:3px solid var(--color-mark);padding-left:var(--space-3);margin-bottom:var(--space-4)}.landing-review__label{margin-bottom:var(--space-1);font-size:.85rem;font-weight:600;display:block}.landing-review__input{opacity:.8;font-style:italic;display:block}.landing-section{margin-bottom:var(--space-7)}.landing-section h2{margin-bottom:var(--space-4);font-size:1.6rem}.landing-section h3{font-family:var(--font-display), system-ui, sans-serif;letter-spacing:.02em;text-transform:uppercase;margin:0 0 var(--space-2);font-size:1.05rem}.landing-steps{gap:var(--space-4);display:grid}@media (min-width:700px){.landing-steps{grid-template-columns:repeat(3,1fr)}}.landing-step{border:1px solid var(--color-border);background:var(--color-card);padding:var(--space-5);box-shadow:var(--shadow-card);border-radius:12px}.landing-step__n{font-family:var(--font-display), system-ui, sans-serif;color:var(--color-mark);margin-bottom:var(--space-2);font-size:1.4rem;font-weight:800;display:inline-block}.landing-features{gap:var(--space-4);display:grid}@media (min-width:700px){.landing-features{grid-template-columns:repeat(2,1fr)}}.landing-feature{border:1px solid var(--color-border);background:var(--color-card);padding:var(--space-4) var(--space-5);box-shadow:var(--shadow-card);border-radius:12px}.landing-owner p{max-width:60ch}.landing-final{text-align:center;border:1px solid var(--color-border);background:var(--color-card);padding:var(--space-7) var(--space-5);box-shadow:var(--shadow-card);border-radius:14px}.landing-final h2{margin-bottom:var(--space-3)}.landing-final__sub{opacity:.85;max-width:52ch;margin:0 auto var(--space-5)}.landing-footer{gap:var(--space-2);border-top:1px solid var(--color-border);padding-top:var(--space-3);margin-bottom:var(--space-4);flex-wrap:wrap;justify-content:space-between;align-items:baseline;font-size:.9rem;display:flex}.landing-footer a{color:var(--color-ink)}.legal{max-width:68ch}.legal h2{margin:var(--space-6) 0 var(--space-3);font-size:1.3rem}.legal p{margin:0 0 var(--space-3)}.legal ul{margin:0 0 var(--space-3);padding-left:1.25rem}.legal li{margin-bottom:var(--space-1)}.legal-updated{font-family:var(--font-mono), ui-monospace, monospace;letter-spacing:.03em;opacity:.65;margin-bottom:var(--space-5);font-size:.78rem}.legal-notice{background:var(--color-card);border:1px solid var(--color-border);box-shadow:var(--shadow-card);padding:var(--space-4) var(--space-5);margin-bottom:var(--space-6);opacity:.9;border-radius:12px;font-size:.92rem;display:block}.legal-links-footer{margin-top:var(--space-7)}.legal-links{margin:var(--space-2) 0 0}.legal-links a{margin-right:var(--space-3)}