:root{--blue:#1685e6;--navy:#123761;--pale:#edf8ff;--line:#c7e3ee;--yellow:#ffd43b;font-family:Arial,Helvetica,sans-serif;color:var(--navy)}*{box-sizing:border-box}body{margin:0;background:linear-gradient(160deg,#f4fbff,#e6f5fb);min-height:100vh}button{font:inherit}#root{max-width:620px;min-height:100vh;margin:auto;background:#fff;box-shadow:0 0 40px #163d6020}.header{height:86px;display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--line)}.brand{font-weight:900;letter-spacing:.08em;color:var(--blue);font-size:14px}.header h1{font-size:24px;margin:4px 0 0;text-align:center}.back,.icon{border:1px solid var(--line);background:#fff;color:var(--navy);border-radius:50%;width:42px;height:42px;font-size:23px;cursor:pointer}.spacer{width:42px}.screen{padding:28px 22px 38px}.hero{text-align:center;padding:30px 10px}.hero h2{font-size:34px;margin:10px 0}.hero p,.muted{color:#52708d;line-height:1.45}.primary,.sound,.next{border:0;background:var(--blue);color:#fff;border-radius:18px;padding:16px 22px;font-weight:800;cursor:pointer;box-shadow:0 8px 18px #1685e638}.primary{width:100%;font-size:17px}.choice{width:100%;border:1px solid var(--line);border-radius:18px;background:#fff;padding:18px;margin:10px 0;text-align:left;cursor:pointer}.choice strong{display:block;font-size:18px;margin-bottom:4px}.days{display:grid;gap:10px}.day{display:flex;align-items:center;gap:14px;width:100%;border:1px solid var(--line);background:#fff;border-radius:17px;padding:14px;cursor:pointer;text-align:left}.day b{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--pale);color:var(--blue)}.day.done b{background:#25a55f;color:#fff}.card{border:1px solid var(--line);border-radius:25px;background:#fff;padding:24px 18px;text-align:center;box-shadow:0 8px 20px #173f6012}.progress{display:flex;justify-content:space-between;color:var(--blue);font-weight:800;margin-bottom:20px}.word{font-family:Georgia,serif;font-size:64px;margin:0 0 22px;text-transform:lowercase}.letters{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.letters button{min-height:82px;background:#f7fcff;border:1px solid var(--line);border-radius:18px;font-family:Georgia,serif;font-size:42px;color:var(--navy);cursor:pointer}.puzzle{height:55px;display:grid;place-items:center}.puzzle button{width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:#fff;font-size:24px;cursor:pointer}.sound{margin-top:12px;width:100%;font-size:17px}.nav{display:flex;justify-content:space-between;gap:10px;margin-top:22px}.nav button{border:1px solid var(--line);border-radius:14px;padding:13px 15px;background:#fff;color:var(--blue);font-weight:800;cursor:pointer}.nav button:last-child{background:var(--pale)}.quiz{display:grid;gap:12px;margin-top:22px}.quiz button{border:1px solid var(--line);border-radius:15px;background:#fff;padding:15px;color:var(--navy);font-weight:800;cursor:pointer;font-size:18px}.toast{text-align:center;color:#1685e6;font-weight:800;min-height:24px;margin:12px}.overlay{position:fixed;inset:0;background:#fffffff7;z-index:10;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;cursor:pointer}.overlay .close{position:absolute;right:20px;top:20px}.overlay h2{height:54px;margin:0;display:flex;align-items:flex-end;text-transform:lowercase;font-family:Georgia,serif;font-size:38px}.overlay img{width:100%;height:min(62vh,560px);object-fit:contain;margin:4px 0 12px}.overlay .replay{width:64px;height:64px;border:0;border-radius:50%;background:var(--blue);color:#fff;font-size:29px;cursor:pointer}.small{font-size:13px;color:#52708d}@media(max-width:520px){#root{box-shadow:none}.screen{padding:22px 15px}.hero h2{font-size:30px}.word{font-size:57px}.letters button{min-height:74px}}