:root {
  --ink: #101828;
  --muted: #475467;
  --line: #e4e7ec;
  --navy: #192a8f;
  --navy-hover: #283db8;
  --navy-soft: #eef2ff;
  --navy-edge: #b9c3f2;
  --paper: #f7faff;
  --white: #fff;
  --err: #b42318;
  --err-soft: #fef3f2;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 24px 48px -24px rgba(25, 42, 143, 0.28);
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  min-height: 100dvh;
  color: var(--ink);
  background: var(--paper);
  font-family: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.4;
}
button, input, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }
.hp {
  position: absolute;
  left: -10000px;
  top: 0;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.noscript { padding: 1.25rem; }
.app {
  width: min(100%, 40rem);
  min-height: 100dvh;
  margin: 0 auto;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  padding: 0 1.5rem;
}
.top { padding: 1.1rem 0 0.35rem; }
.mark { font-family: Fraunces, Georgia, serif; font-size: 1.5rem; color: var(--navy); letter-spacing: -0.04em; }
.progress { display: grid; justify-items: start; gap: 0.45rem; width: 100%; padding: 0.2rem 0 0; }
.count { min-height: 1.1em; color: var(--navy); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.bar { width: 100%; height: 6px; overflow: hidden; border-radius: 999px; background: var(--navy-soft); box-shadow: inset 0 0 0 1px var(--navy-edge); }
.bar span { display: block; height: 100%; width: 0; border-radius: 999px; background: linear-gradient(90deg, var(--navy), var(--navy-hover)); transition: width 0.35s ease; }
.stage { min-height: 0; overflow-y: auto; padding: 1.35rem 0 1rem; }
h1 { margin: 0 0 0.4rem; font-family: Fraunces, Georgia, serif; font-weight: 560; letter-spacing: -0.03em; font-size: clamp(1.55rem, 5vw, 2.05rem); line-height: 1.15; text-align: left; white-space: pre-line; }
.lede { margin: 0 0 1.25rem; color: var(--muted); font-size: 1.02rem; text-align: left; }
.copy p { margin: 0.45rem 0; }
.copy em { font-style: italic; }
.msg { margin: 0.75rem 0 0; padding: 0.6rem 0.8rem; border-radius: 12px; background: var(--err-soft); color: var(--err); }
.actions {
  display: flex;
  gap: 0.6rem;
  padding: 0.85rem 0 calc(0.85rem + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: var(--paper);
}
.btn { min-height: 3.25rem; padding: 0 1.2rem; border-radius: 16px; border: 2px solid var(--navy); background: var(--navy); color: var(--white); font-weight: 600; font-size: 1.05rem; cursor: pointer; }
.btn.primary { flex: 1; }
.btn.ghost { background: var(--white); color: var(--navy); border-color: var(--line); }
.btn:hover { background: var(--navy-hover); border-color: var(--navy-hover); }
.btn.ghost:hover { background: var(--navy-soft); border-color: var(--navy-edge); }
.btn:disabled { opacity: 0.65; cursor: progress; }
input[type="text"], input[type="email"], input[type="url"], input[type="number"], textarea {
  width: 100%;
  min-height: 3rem;
  padding: 0.7rem 0.85rem;
  border: 1.5px solid #d0d5dd;
  border-radius: 14px;
  background: var(--white);
  font-size: 1.05rem;
}
textarea { min-height: 7.5rem; resize: vertical; line-height: 1.45; }
input:focus, textarea:focus { outline: 3px solid rgba(25, 42, 143, 0.16); border-color: var(--navy); }
.choices { display: grid; gap: 0.45rem; }
.choice { display: flex; align-items: center; gap: 0.75rem; width: 100%; min-height: 3.1rem; padding: 0.65rem 0.9rem; border: 1.5px solid var(--line); border-radius: 14px; background: var(--white); text-align: left; cursor: pointer; }
.choice:hover, .choice.on { border-color: var(--navy); background: var(--navy-soft); color: var(--navy); }
.choice .key { display: grid; place-items: center; flex: none; width: 1.6rem; height: 1.6rem; border: 1px solid var(--navy-edge); border-radius: 6px; background: var(--white); color: var(--navy); font-size: 0.78rem; font-weight: 700; }
.choice.on .key { background: var(--navy); color: var(--white); border-color: var(--navy); }
.drop { display: grid; justify-items: center; gap: 0.25rem; padding: 1.5rem 1rem; border: 2px dashed var(--navy-edge); border-radius: 20px; background: var(--navy-soft); text-align: center; cursor: pointer; }
.drop:hover, .drop.over { border-color: var(--navy); background: #e3e8ff; }
.drop strong { color: var(--navy); }
.drop small { color: var(--muted); }
:focus-visible { outline: 3px solid rgba(25, 42, 143, 0.35); outline-offset: 2px; }
@media (min-width: 720px) {
  body { display: grid; place-items: center; background: radial-gradient(1200px 500px at 50% -10%, #e3e8ff 0%, var(--paper) 60%); }
  .app {
    width: min(calc(100% - 2.5rem), 40rem);
    min-height: 0;
    height: min(860px, 94dvh);
    padding: 0 2rem;
    border: 1px solid var(--line);
    border-radius: 28px;
    background: var(--white);
    box-shadow: var(--shadow);
    overflow: hidden;
  }
  .actions { background: var(--white); }
  .stage { padding: 1.5rem 0 1rem; }
  h1 { font-size: 2.15rem; }
}
@media (prefers-reduced-motion: reduce) {
  .stage.enter, .bar span { animation: none; transition: none; }
}
.stage.enter { animation: enter 0.28s ease backwards; }
@keyframes enter { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }