:root {
  --bg: #1b1410; --bg2: #271d17; --card: #33261e; --line: #4a382d;
  --ink: #fff4e6; --dim: #c9b5a3; --accent: #ffb627; --accent-ink: #2a1a05;
  --ok: #5ad1c4; --bad: #ff8a7a;
  --safe-t: env(safe-area-inset-top, 0px); --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-l: env(safe-area-inset-left, 0px); --safe-r: env(safe-area-inset-right, 0px);
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--ink);
  font: 17px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; overflow: hidden; }
.app { height: 100dvh; display: flex; flex-direction: column; position: relative;
  padding: var(--safe-t) var(--safe-r) 0 var(--safe-l);
  background: radial-gradient(120% 60% at 50% -10%, #4a2c16 0%, var(--bg) 60%); }
.top { padding: 12px 20px 0; }
.bar { height: 6px; border-radius: 3px; background: var(--line); overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; background: var(--accent); border-radius: 3px; transition: width .35s ease; }
.stepno { margin: 8px 0 0; font-size: 13px; color: var(--dim); }
.main { flex: 1; overflow-y: auto; padding: 4px 20px 24px; outline: none; -webkit-overflow-scrolling: touch; }
h1 { font-size: 26px; line-height: 1.15; margin: 8px 0 6px; }
h2 { font-size: 18px; margin: 22px 0 8px; }
.sub, .hint { color: var(--dim); font-size: 15px; margin: 0 0 14px; }
.hint { font-size: 14px; margin: 6px 0 0; }
.err { color: var(--bad); font-size: 15px; margin: 12px 0 0; min-height: 0; white-space: pre-line; }
.err:empty { display: none; }
.nav { display: flex; gap: 12px; padding: 10px 20px calc(10px + var(--safe-b)); background: linear-gradient(0deg, var(--bg) 70%, transparent); }
.nav.hide { display: none; }
.foot { margin: 0; text-align: center; font-size: 12px; color: var(--dim); padding: 0 0 calc(6px + var(--safe-b)); }
.btn { font: inherit; font-weight: 600; min-height: 48px; min-width: 44px; padding: 0 20px; border-radius: 14px;
  border: 2px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; }
.btn.primary { flex: 1; background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.ghost { background: transparent; }
.btn:disabled { opacity: .4; cursor: not-allowed; }
:focus-visible { outline: 3px solid var(--ok); outline-offset: 2px; }
label { display: block; font-weight: 600; margin: 0 0 6px; }
input[type=text] { width: 100%; font: inherit; font-size: 16px; min-height: 48px; padding: 0 14px; border-radius: 12px;
  border: 2px solid var(--line); background: var(--bg2); color: var(--ink); }
input[type=text]:focus { border-color: var(--accent); outline: none; }
.years { display: flex; gap: 12px; }
.years .btn { flex: 1; min-height: 64px; font-size: 26px; }
.btn.on, .chip.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { font: inherit; font-size: 16px; min-height: 44px; padding: 0 16px; border-radius: 22px; border: 2px solid var(--line);
  background: var(--card); color: var(--ink); cursor: pointer; }
.chip:disabled { opacity: .4; }
.count { color: var(--dim); font-size: 14px; margin: 10px 0 0; }
.q { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 14px; margin: 0 0 14px; }
.q > p { margin: 0 0 10px; font-weight: 600; }
.ends { display: flex; justify-content: space-between; gap: 12px; font-size: 14px; color: var(--dim); margin-top: 8px; }
.ends span:last-child { text-align: right; }
.scale { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.scale button { font: inherit; min-height: 48px; border-radius: 12px; border: 2px solid var(--line); background: var(--bg2); color: var(--ink); cursor: pointer; }
.scale button.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 700; }
input[type=range] { width: 100%; height: 44px; accent-color: var(--accent); margin: 4px 0 0; }
.q.untouched input[type=range] { opacity: .45; }
.small { font: inherit; font-size: 14px; min-height: 44px; background: none; border: 0; color: var(--ok); text-decoration: underline; cursor: pointer; padding: 0 8px; }
.list { list-style: none; margin: 8px 0; padding: 0; }
.list li { display: flex; align-items: center; justify-content: space-between; gap: 8px; background: var(--card);
  border-radius: 12px; padding: 4px 4px 4px 14px; margin-bottom: 8px; word-break: break-word; }
.addrow { display: flex; gap: 8px; }
.addrow .btn { padding: 0 16px; }
.cc { font-size: 13px; color: var(--dim); margin: 4px 0 0; }
.bubbles { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.bubble { font: inherit; font-weight: 600; aspect-ratio: 1.3; border-radius: 28px; border: 2px solid var(--line); cursor: pointer;
  background: radial-gradient(circle at 30% 25%, #5a3f2e, var(--card)); color: var(--ink); padding: 10px; display: flex;
  flex-direction: column; align-items: center; justify-content: center; gap: 4px; min-height: 88px; }
.bubble small { font-weight: 400; color: var(--dim); }
.bubble.open { border-color: var(--accent); box-shadow: 0 0 0 3px #ffb62744; }
.bubble.has small { color: var(--accent); }
.panel { background: var(--bg2); border: 1px solid var(--accent); border-radius: 18px; padding: 14px; margin: 14px 0; }
.panel h2 { margin: 0 0 10px; }
.pick { background: var(--card); border-radius: 14px; padding: 12px; margin-bottom: 12px; }
.pick > b { display: block; margin-bottom: 8px; }
.seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-bottom: 8px; }
.seg button { font: inherit; font-size: 14px; min-height: 44px; border-radius: 10px; border: 2px solid var(--line); background: var(--bg2); color: var(--ink); cursor: pointer; padding: 0 4px; }
.seg button.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 700; }
.opt { display: flex; gap: 12px; align-items: flex-start; width: 100%; text-align: left; font: inherit; color: var(--ink);
  background: var(--card); border: 2px solid var(--line); border-radius: 14px; min-height: 56px; padding: 10px 14px; margin-bottom: 10px; cursor: pointer; }
.opt.on { border-color: var(--accent); background: #4a3217; }
.opt .tick { flex: none; width: 24px; height: 24px; border-radius: 12px; border: 2px solid var(--dim); margin-top: 2px; }
.opt.on .tick { background: var(--accent); border-color: var(--accent); }
.opt small { display: block; color: var(--dim); font-size: 14px; }
.sum { background: var(--card); border-radius: 14px; padding: 12px 14px; margin-bottom: 12px; }
.sum header { display: flex; justify-content: space-between; align-items: center; font-weight: 700; margin-bottom: 4px; }
.sum p { margin: 2px 0; color: var(--dim); font-size: 15px; word-break: break-word; }
.reveal { position: absolute; inset: 0; z-index: 5; display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: calc(24px + var(--safe-t)) 24px calc(24px + var(--safe-b)); background: var(--bg); overflow-y: auto; }
.reveal canvas { width: min(80vw, 320px); height: min(80vw, 320px); }
.code { font: 700 44px/1 ui-monospace, Menlo, monospace; letter-spacing: .06em; color: var(--accent); margin: 8px 0 16px; }
.row { display: flex; gap: 10px; justify-content: center; margin-bottom: 16px; flex-wrap: wrap; }
a.btn { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
.big { width: 100%; max-width: 360px; min-height: 60px; font-size: 20px; }