:root{--bg: #ffffff;--text: #000000;--muted: #666666;--accent: #ff3800;--accent-hover: #e63200;--border: #e6e6e6;--border-strong: #000000;--radius: 6px;--max-w: 720px}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;font-size:18px;line-height:1.45;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}main{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding:80px 24px 48px}#form-root{width:100%;max-width:var(--max-w)}.brand{font-weight:700;letter-spacing:-.02em;font-size:14px;text-transform:uppercase;color:var(--muted);margin-bottom:32px}.screen{animation:fade-up .28s ease-out}@keyframes fade-up{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.screen-welcome h1,.screen-question .question-title{font-size:clamp(28px,3.4vw,42px);line-height:1.15;font-weight:700;letter-spacing:-.02em;margin:0 0 12px}.welcome-emoji{font-size:1em;margin-right:4px}.welcome-paragraph{font-size:18px;color:var(--text);margin:0 0 18px;line-height:1.55}.welcome-paragraph strong{font-weight:700}.welcome-signature{font-size:18px;color:var(--text);margin:24px 0 32px}.subtitle{font-size:18px;color:var(--muted);margin:0 0 32px}.step-counter{font-size:13px;color:var(--muted);margin-bottom:16px;font-variant-numeric:tabular-nums}.step-counter span{opacity:.7}.btn-primary{display:inline-flex;align-items:center;gap:12px;background:var(--accent);color:#fff;border:none;font-size:18px;font-weight:600;padding:14px 24px;border-radius:var(--radius);cursor:pointer;transition:background .15s}.btn-primary:hover{background:var(--accent-hover)}.kbd-hint{font-size:13px;font-weight:400;opacity:.85}kbd{background:#fff3;padding:2px 6px;border-radius:3px;font-family:inherit;font-size:12px}.btn-ghost{background:transparent;border:none;color:var(--muted);font-size:14px;cursor:pointer;padding:8px 0}.btn-ghost:hover{color:var(--text)}.choices{list-style:none;padding:0;margin:24px 0 16px;display:flex;flex-direction:column;gap:10px}.choice{width:100%;text-align:left;display:flex;align-items:center;gap:14px;background:#fff;border:1.5px solid var(--border);border-radius:var(--radius);padding:14px 16px;font-size:16px;cursor:pointer;font-family:inherit;transition:border-color .15s,background .15s,transform .05s}.choice:hover{border-color:var(--border-strong)}.choice.is-selected{border-color:var(--accent);background:#ff38000f}.choice:active{transform:scale(.99)}.choice-key{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border:1.5px solid currentColor;border-radius:4px;font-size:12px;font-weight:600;flex-shrink:0;color:var(--muted)}.choice.is-selected .choice-key{color:var(--accent)}.choice-label{flex:1}.text-input-wrap{display:flex;flex-direction:column;gap:16px;margin:24px 0 16px}.text-input{width:100%;font-size:24px;padding:12px 0;border:none;border-bottom:2px solid var(--border);background:transparent;font-family:inherit;color:var(--text);outline:none;transition:border-color .15s}.text-input:focus{border-color:var(--accent)}.text-input::placeholder{color:#bbb}.text-input-wrap .btn-primary{align-self:flex-start}.error{color:var(--accent);font-size:14px;margin-top:8px}.nav{margin-top:32px;border-top:1px solid var(--border);padding-top:16px}.progress-bar{position:fixed;top:0;left:0;right:0;height:3px;background:var(--border);z-index:10}.progress-fill{height:100%;background:var(--accent);transition:width .3s ease}.screen-loading,.screen-done{text-align:center;padding:60px 0}.spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;margin:0 auto 24px;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.checkmark{width:64px;height:64px;border-radius:50%;background:var(--accent);color:#fff;font-size:36px;display:flex;align-items:center;justify-content:center;margin:0 auto 24px;animation:pop .4s ease-out}@keyframes pop{0%{transform:scale(0)}60%{transform:scale(1.15)}to{transform:scale(1)}}@media(max-width:640px){main{padding:40px 20px 24px}body{font-size:16px}.text-input{font-size:20px}}