:root{--bg: #323437;--fg: #d1d0c5;--muted: #6b6a63;--accent: #e2b714;--error: #ca4754;--correct: #d1d0c5;--pending: #6b6a63;--surface: #2b2c2f;--font: "Niramit", "IBM Plex Sans Thai", "Noto Sans Thai", "Leelawadee UI", "Tahoma", system-ui, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--fg);font-family:var(--font);-webkit-font-smoothing:antialiased}.app{min-height:100%;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;gap:14px;padding:14px 22px;border-bottom:1px solid #3a3b3e}.brand{font-weight:700;color:var(--accent);letter-spacing:.5px}.lesson-select{background:var(--surface);color:var(--fg);border:1px solid #3a3b3e;border-radius:8px;padding:7px 10px;font-family:var(--font);font-size:14px;max-width:280px}.topbar .btn{margin-left:auto}.stage{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:28px 18px 40px;width:100%}.btn{border:none;border-radius:10px;padding:12px 20px;font-family:var(--font);font-size:15px;font-weight:600;cursor:pointer;transition:transform .05s ease,background .15s ease}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--accent);color:#2b2c2f}.btn-ghost{background:transparent;color:var(--muted);border:1px solid #3a3b3e}.btn-ghost:hover{color:var(--fg)}.btn-sm{padding:8px 14px;font-size:13px}.intro{text-align:center;max-width:640px}.intro-kicker{color:var(--muted);font-size:14px;margin-bottom:6px}.intro-title{font-size:30px;margin:0 0 28px}.intro-keys{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:30px}.intro-key{background:var(--surface);border-radius:12px;padding:16px 18px;min-width:84px;display:flex;flex-direction:column;align-items:center;gap:8px}.intro-char{font-size:34px;color:var(--accent);line-height:1}.intro-keyhint{font-size:13px;color:var(--muted)}.intro-note{color:var(--muted)}.typing{width:100%;max-width:900px;display:flex;flex-direction:column;align-items:center;gap:22px}.live-stats{display:flex;gap:22px;color:var(--muted);font-size:14px;font-variant-numeric:tabular-nums}.text{font-size:28px;line-height:1.9;max-width:900px;text-align:left;-webkit-user-select:none;user-select:none;cursor:text}.char{color:var(--pending);transition:color .05s}.char.correct{color:var(--correct)}.char.incorrect{color:var(--error);background:#ca47542e;border-radius:3px}.char.current{border-bottom:3px solid var(--accent);border-radius:2px;animation:blink 1s steps(2) infinite}@keyframes blink{0%,50%{border-color:var(--accent)}50.01%,to{border-color:transparent}}.hidden-input{position:absolute;opacity:0;pointer-events:none;width:1px;height:1px;left:-9999px}.typing-actions{margin-top:4px}.keyboard{display:flex;flex-direction:column;gap:6px;background:transparent;padding:10px;border-radius:12px;width:100%;max-width:820px}.kb-row{display:flex;gap:6px}.kb-key{flex:1;background:var(--surface);border-radius:8px;height:52px;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;border:2px solid transparent;transition:all .08s ease}.kb-base{font-size:20px;line-height:1;color:var(--fg)}.kb-shift{font-size:11px;color:var(--muted);position:absolute;top:4px}.kb-special{color:var(--muted);font-size:16px}.kb-key.kb-special{font-size:13px}.kb-active{border-color:var(--accent);background:#3c3a30;box-shadow:0 0 14px #e2b71459}.kb-active .kb-base{color:var(--accent)}.kb-error{border-color:var(--error);background:#ca475440}.kb-shift-on{border-color:var(--accent)}.summary{text-align:center;max-width:560px}.summary-kicker{color:var(--muted);font-size:14px;margin-bottom:6px}.summary-title{font-size:26px;margin:0 0 20px}.summary-skip{color:var(--error);margin-bottom:14px}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:28px}.stat{background:var(--surface);border-radius:12px;padding:18px 10px}.stat-val{font-size:26px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}.stat-label{font-size:13px;color:var(--muted);margin-top:4px}@media (max-width: 640px){.text{font-size:22px}.kb-key{height:44px}.lesson-select{max-width:160px}.stats-grid{grid-template-columns:repeat(2,1fr)}}@font-face{font-family:Niramit;font-style:normal;font-weight:400;src:url(/fonts/niramit-400-0.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:400;src:url(/fonts/niramit-400-1.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:400;src:url(/fonts/niramit-400-2.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:400;src:url(/fonts/niramit-400-3.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:500;src:url(/fonts/niramit-500-4.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:500;src:url(/fonts/niramit-500-5.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:500;src:url(/fonts/niramit-500-6.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:500;src:url(/fonts/niramit-500-7.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:600;src:url(/fonts/niramit-600-8.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:600;src:url(/fonts/niramit-600-9.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:600;src:url(/fonts/niramit-600-10.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:600;src:url(/fonts/niramit-600-11.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:700;src:url(/fonts/niramit-700-12.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:700;src:url(/fonts/niramit-700-13.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:700;src:url(/fonts/niramit-700-14.woff2) format("woff2");font-display:swap}@font-face{font-family:Niramit;font-style:normal;font-weight:700;src:url(/fonts/niramit-700-15.woff2) format("woff2");font-display:swap}