:root{--chalkboard:#1f3a2e;--chalkboard-dark:#142720;--chalk-yellow:#f2c14e;--paper:#fbf7ec;--paper-line:#e4dcc4;--ink:#202a22;--leaf:#4c9a6a;--clay:#b5482f;--muted:#6b7a70;--font-display:"Space Grotesk",system-ui,sans-serif;--font-body:"Source Serif 4",Georgia,serif;--font-chalk:"Kalam",cursive}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--chalkboard);color:var(--paper);font-family:var(--font-body)}a{color:inherit}button{font-family:var(--font-display);cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--chalk-yellow);outline-offset:2px}@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}.wrap{max-width:960px;margin:0 auto;padding:32px 20px 80px}.hero{text-align:left;padding:40px 0 24px;border-bottom:2px dashed hsla(44,65%,95%,.25);margin-bottom:28px}.hero h1{font-family:var(--font-display);font-size:clamp(2rem,5vw,3.2rem);line-height:1.1;margin:0 0 8px}.hero .chalk-tag{font-family:var(--font-chalk);color:var(--chalk-yellow);font-size:1.3rem;display:inline-block;transform:rotate(-2deg)}.hero-subtitle{font-family:var(--font-chalk);color:rgba(242,193,78,.75);font-size:.95rem;margin:2px 0 12px}.hero p{color:hsla(44,65%,95%,.75);max-width:60ch;font-size:1.05rem}.step-label{font-family:var(--font-display);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--chalk-yellow);margin-bottom:10px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));grid-gap:14px;gap:14px;margin-bottom:32px}.card-btn{background:var(--paper);color:var(--ink);border:none;border-radius:10px;padding:18px 16px;text-align:left;font-family:var(--font-display);font-weight:700;font-size:1rem;box-shadow:0 3px 0 rgba(0,0,0,.25);transition:transform .12s ease}.card-btn:hover{transform:translateY(-2px)}.card-btn.selected{background:var(--chalk-yellow);box-shadow:0 0 0 3px var(--paper) inset}.card-btn 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var(--paper-line);border-radius:999px;width:44px;height:44px;font-size:1.2rem;cursor:pointer;flex-shrink:0}.voice-btn-active{background:var(--clay);border-color:var(--clay);animation:pulse-voice 1.2s infinite}@keyframes pulse-voice{0%,to{opacity:1}50%{opacity:.55}}.quick-row{display:flex;gap:8px;flex-wrap:wrap;padding:0 20px 14px}.chip{background:transparent;border:1.5px solid var(--chalkboard);color:var(--chalkboard);border-radius:999px;padding:6px 14px;font-size:.85rem;font-family:var(--font-display)}.quiz-card{background:var(--paper);color:var(--ink);border-radius:12px;padding:24px}.quiz-progress{font-family:var(--font-chalk);color:var(--muted);margin-bottom:6px}.quiz-question{font-family:var(--font-display);font-size:1.2rem;margin-bottom:16px}.quiz-option{display:block;width:100%;text-align:left;background:#fff;border:2px solid var(--paper-line);border-radius:8px;padding:12px 16px;margin-bottom:10px;font-family:var(--font-body);font-size:1rem}.quiz-option.correct{border-color:var(--leaf);background:#eaf6ee}.quiz-option.wrong{border-color:var(--clay);background:#fbeae6}.feedback{font-family:var(--font-display);font-weight:700;margin:10px 0}.feedback.correct{color:var(--leaf)}.feedback.wrong{color:var(--clay)}.score-banner{font-family:var(--font-display);font-size:1.4rem;text-align:center;padding:20px}.visual-block{background:#fff;color:var(--ink);border:1px solid var(--paper-line);border-radius:10px;padding:14px 16px;margin:10px 0 16px;max-width:100%;overflow-x:auto}.visual-title{font-family:var(--font-display);font-weight:700;font-size:.95rem;margin-bottom:10px;color:var(--chalkboard-dark)}.illustration-wrap,.visual-title{text-align:center}.illustration-loading{color:var(--muted);font-family:var(--font-chalk);padding:30px 10px;font-size:.95rem}.data-table{border-collapse:collapse;width:100%;font-size:.92rem}.data-table td,.data-table th{border:1px solid var(--paper-line);padding:8px 10px;text-align:left;color:var(--ink)}.data-table th{background:var(--chalkboard);color:var(--paper);font-family:var(--font-display)}.data-table tr:nth-child(2n) td{background:rgba(76,154,106,.06)}.speak-btn,.speak-btn-small{background:none;border:1px solid var(--paper-line);border-radius:999px;cursor:pointer;margin-right:6px;line-height:1}.speak-btn{font-size:1rem;padding:6px 9px}.speak-btn-small{font-size:.85rem;padding:3px 7px}.chip-inverse{border-color:var(--paper);color:var(--paper)}.dictionary-panel{background:hsla(0,0%,100%,.97);color:var(--ink);border-bottom:2px dashed var(--paper-line);padding:16px 20px}.dictionary-header{display:flex;justify-content:space-between;align-items:center;font-family:var(--font-display);margin-bottom:10px}.dictionary-form{display:flex;gap:8px}.dictionary-form input{flex:1 1;border:1px solid var(--paper-line);border-radius:8px;padding:10px 12px;font-family:var(--font-body)}.dictionary-error{color:var(--clay);font-family:var(--font-chalk);margin-top:10px}.dictionary-entry{margin-top:14px}.dictionary-word-row{display:flex;align-items:center;gap:10px;margin-bottom:8px}.dictionary-word{font-family:var(--font-display);font-weight:700;font-size:1.2rem}.dictionary-phonetic{color:var(--muted);font-family:var(--font-chalk)}.dictionary-meaning{margin-bottom:10px}.dictionary-meaning em{color:var(--leaf);font-family:var(--font-display);font-style:normal;text-transform:capitalize;font-size:.85rem}.dictionary-meaning ol{margin:4px 0 0 20px;padding:0}.dictionary-example{color:var(--muted);font-family:var(--font-chalk);font-size:.9rem;margin-top:2px}.dictionary-context{margin-top:16px;border-top:1px dashed var(--paper-line);padding-top:14px}.dictionary-context-result{margin-top:10px;background:rgba(76,154,106,.08);border-left:3px solid var(--leaf);padding:10px 14px;border-radius:4px}.leaderboard{background:#fff;border:1px solid var(--paper-line);border-radius:10px;padding:18px;max-width:420px;margin:0 auto}.leaderboard-title{font-family:var(--font-display);font-weight:700;margin-bottom:12px;text-align:center}.leaderboard-note{text-align:center;font-family:var(--font-chalk);color:var(--leaf)}.leaderboard-list{margin:14px 0 0;padding:0 0 0 22px}.leaderboard-list li{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px dashed var(--paper-line)}.leaderboard-name{font-family:var(--font-body)}.leaderboard-score{font-family:var(--font-display);font-weight:700;color:var(--chalkboard)}.puzzle-tabs{display:flex;gap:8px;margin-bottom:16px}.chip-active{background:var(--chalkboard);color:var(--paper)}.puzzle-clue{font-family:var(--font-chalk);color:var(--muted);margin-bottom:14px;font-size:1.05rem}.puzzle-answer-row{min-height:52px;display:flex;flex-wrap:wrap;gap:8px;padding:10px;border:2px dashed var(--paper-line);border-radius:10px;margin-bottom:14px}.puzzle-placeholder{color:var(--muted);font-family:var(--font-chalk);align-self:center}.puzzle-tile-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.puzzle-tile{background:var(--paper);border:2px solid var(--chalkboard);color:var(--chalkboard);border-radius:8px;padding:10px 14px;font-family:var(--font-display);font-weight:700;font-size:1.05rem}.puzzle-tile-answer{background:var(--chalk-yellow);border-color:var(--chalk-yellow);color:var(--chalkboard-dark)}.app-footer{margin-top:56px;padding-top:24px;text-align:center}.footer-divider{border-top:2px dashed hsla(44,65%,95%,.2);margin-bottom:20px}.footer-tagline{font-family:var(--font-chalk);color:var(--chalk-yellow);font-size:1.05rem;margin:0 0 2px;transform:rotate(-1deg)}.footer-name{font-family:var(--font-display);font-weight:700;font-size:1.1rem;color:var(--paper);margin:0 0 2px}.footer-company{color:hsla(44,65%,95%,.65);font-size:.85rem;margin:0 0 14px}.footer-row{font-size:.85rem;margin-bottom:6px}.footer-row a{color:hsla(44,65%,95%,.85);text-decoration:none;border-bottom:1px solid hsla(44,65%,95%,.35)}.footer-row a:hover{color:var(--chalk-yellow);border-color:var(--chalk-yellow)}.footer-dot{margin:0 8px;color:hsla(44,65%,95%,.4)}.top-links{margin-top:14px;font-size:.9rem}.top-links a{color:var(--chalk-yellow);text-decoration:none;border-bottom:1px solid rgba(242,193,78,.4)}.top-links a:hover{border-color:var(--chalk-yellow)}.dashboard-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));grid-gap:12px;gap:12px;margin:20px 0 28px}.stat-card{background:var(--paper);color:var(--ink);border-radius:10px;padding:16px;text-align:center}.stat-number{font-family:var(--font-display);font-weight:700;font-size:1.6rem;color:var(--chalkboard)}.stat-label{font-size:.8rem;color:var(--muted);margin-top:4px}.online-dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:#3ecf6e;box-shadow:0 0 0 2px rgba(62,207,110,.25);margin-right:6px;vertical-align:middle}.auth-gate{margin-bottom:24px}.auth-form{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}.auth-form input{flex:1 1;min-width:160px;padding:12px 14px;border-radius:8px;border:none;font-family:var(--font-body);font-size:1rem}.password-field{position:relative;display:flex;flex:1 1;min-width:160px}.password-field input{width:100%;padding-right:42px}.password-toggle{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:none;border:none;font-size:1.1rem;padding:4px 6px;cursor:pointer;line-height:1}.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));grid-gap:18px;gap:18px;margin:28px 0}.pricing-card{background:var(--paper);color:var(--ink);border-radius:14px;padding:26px 20px;text-align:center;position:relative;box-shadow:0 4px 0 rgba(0,0,0,.25)}.pricing-card-highlight{background:var(--chalk-yellow);transform:scale(1.03)}.pricing-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--chalkboard);color:var(--paper);font-size:.72rem;padding:4px 12px;border-radius:999px;text-transform:uppercase;letter-spacing:.05em}.pricing-badge,.pricing-plan-name{font-family:var(--font-display);font-weight:700}.pricing-plan-name{font-size:1.1rem;margin-bottom:6px}.pricing-price{font-family:var(--font-display);font-weight:700;font-size:2rem;margin-bottom:4px}.pricing-permonth{color:var(--muted);font-size:.85rem;margin-bottom:8px}.pricing-note{font-family:var(--font-chalk);font-size:.95rem;color:var(--leaf)}