:root{--cream: #fbf3ee;--blush: #f3dcd8;--blush-deep: #e8c4c0;--rose: #c96f6b;--ink: #1a1a1a;--ink-soft: #55504e;--gold: #b98a2f;--ok: #4f7a53;--bad: #b3504a;--radius: 18px;--serif: "Playfair Display", Georgia, "Times New Roman", serif;--sans: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html,body{height:100%}body{font-family:var(--sans);background:var(--cream);color:var(--ink);font-size:16px;line-height:1.45}#root{min-height:100%}.page{max-width:440px;margin:0 auto;padding:20px 18px calc(28px + env(safe-area-inset-bottom))}h1,h2,.display{font-family:var(--serif);font-weight:600;letter-spacing:.01em}h1{font-size:28px}h2{font-size:21px}.muted{color:var(--ink-soft);font-size:14px}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:11px;color:var(--rose);font-weight:600}.btn{display:block;width:100%;border:none;cursor:pointer;background:var(--ink);color:var(--cream);font-family:var(--sans);font-size:16px;font-weight:600;padding:15px 18px;border-radius:999px;transition:transform .08s ease,opacity .15s}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.45;cursor:default}.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}.btn.rose{background:var(--rose)}.btn.small{width:auto;padding:9px 16px;font-size:14px}.card{background:#fff;border-radius:var(--radius);padding:18px;box-shadow:0 2px 14px #1a1a1a0d}.input{width:100%;padding:14px 16px;font-size:16px;border:1.5px solid var(--blush-deep);border-radius:14px;background:#fff;color:var(--ink);outline:none}.input:focus{border-color:var(--ink)}.stack{display:flex;flex-direction:column;gap:14px}.row{display:flex;align-items:center;gap:10px}.spread{display:flex;align-items:center;justify-content:space-between}.center{text-align:center}.error{color:var(--bad);font-size:14px}.fade-in{animation:fadeIn .35s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.progress-widget{background:var(--ink);color:var(--cream);border-radius:var(--radius);padding:18px}.progress-widget .pct{font-family:var(--serif);font-size:42px;line-height:1}.rail{width:100%;margin-top:8px}.streak-chip{display:inline-flex;align-items:center;gap:6px;background:var(--blush);border-radius:999px;padding:6px 12px;font-size:14px;font-weight:600}.badge{display:inline-block;background:var(--blush);color:var(--ink);font-size:12px;font-weight:600;border-radius:999px;padding:4px 10px}.chapter-card{display:flex;align-items:center;gap:14px;cursor:pointer}.chapter-card .emoji{font-size:28px}.chapter-card .bar{height:5px;background:var(--blush);border-radius:99px;margin-top:7px;overflow:hidden}.chapter-card .bar>div{height:100%;background:var(--rose);border-radius:99px;transition:width .4s}.done-chip{color:var(--gold);font-size:13px;font-weight:600}.hero{background:var(--rose);color:#fff;border-radius:var(--radius);padding:20px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer;box-shadow:0 6px 20px #c96f6b59;transition:transform .08s ease}.hero:active{transform:scale(.98)}.hero-title{font-family:var(--serif);font-size:26px;font-weight:600;line-height:1.15}.hero-sub{font-size:14px;opacity:.92;margin-top:3px}.hero-arrow{font-size:30px;line-height:1;flex-shrink:0}.word-row{display:flex;justify-content:space-between;align-items:center;padding:13px 4px;border-bottom:1px solid var(--blush);cursor:pointer}.word-row:last-child{border-bottom:none}.hanger{font-size:18px}.train-top{display:flex;align-items:center;gap:12px;margin-bottom:22px}.train-bar{flex:1;height:6px;background:var(--blush);border-radius:99px;overflow:hidden}.train-bar>div{height:100%;background:var(--ink);border-radius:99px;transition:width .3s}.close-x{background:none;border:none;font-size:22px;cursor:pointer;color:var(--ink-soft);padding:4px}.prompt-word{font-family:var(--serif);font-size:36px;text-align:center;margin:26px 0}.prompt-text{font-size:19px;text-align:center;margin:22px 0;line-height:1.5}.option{width:100%;text-align:left;font-size:16px;font-family:var(--sans);background:#fff;border:1.5px solid var(--blush-deep);border-radius:14px;padding:14px 16px;cursor:pointer;transition:all .12s}.option:active{transform:scale(.99)}.option.correct{border-color:var(--ok);background:#eef5ee}.option.wrong{border-color:var(--bad);background:#f9ecea}.option.reveal{border-color:var(--ok)}.option:disabled{cursor:default}.feedback{border-radius:var(--radius);padding:14px 16px;margin-top:16px}.feedback.good{background:#eef5ee}.feedback.bad{background:#f9ecea}.feedback .assoc{font-family:var(--serif);font-size:17px}.flip-card{perspective:1000px;cursor:pointer;min-height:320px}.flip-inner{position:relative;width:100%;min-height:320px;transition:transform .5s;transform-style:preserve-3d}.flip-card.flipped .flip-inner{transform:rotateY(180deg)}.flip-face{position:absolute;top:0;right:0;bottom:0;left:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;background:#fff;border-radius:var(--radius);padding:22px;box-shadow:0 2px 14px #1a1a1a0f;display:flex;flex-direction:column;justify-content:center;gap:10px}.flip-back{transform:rotateY(180deg);justify-content:flex-start}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#1a1a1a73;display:flex;align-items:flex-end;justify-content:center;z-index:50}.modal{background:var(--cream);border-radius:22px 22px 0 0;padding:22px 20px 34px;width:100%;max-width:440px;max-height:85vh;overflow-y:auto}.celebrate{text-align:center;padding:30px 0}.celebrate .big{font-size:54px}.pwa-hint{background:var(--blush);border-radius:var(--radius);padding:12px 14px;font-size:14px}audio{width:100%;margin-top:6px}a{color:var(--rose)}