:root {
  --royal: #0d7ea8;
  --royal-deep: #0a5f82;
  --royal-soft: #e6f4f9;
  --ink: #14242e;
  --muted: #5a6b75;
  --card: #fff;
  --border: rgba(10, 95, 130, 0.16);
  --shadow: 0 10px 28px rgba(10, 95, 130, 0.1);
  --radius: 16px;
  --ok: #1a7a4c;
  --warn: #9a5b00;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: #e4eef3;
  background-image:
    linear-gradient(180deg, rgba(244,248,250,.82), rgba(228,238,243,.72)),
    url("assets/stock-mist-bg.jpg");
  background-size: cover;
  background-position: center top;
  background-attachment: fixed;
  min-height: 100%;
}
header {
  display: flex; align-items: center; gap: 1rem;
  padding: 1.1rem 1.25rem;
  background: linear-gradient(135deg, #0a5f82, #0d7ea8);
  color: #fff;
}
header img { width: 52px; height: 52px; border-radius: 50%; background: #fff; }
header h1 { margin: 0; font-size: 1.25rem; }
header p { margin: .2rem 0 0; opacity: .9; font-size: .88rem; }
.page { max-width: 920px; margin: 0 auto; padding: 1.25rem 1rem 4rem; }
.banner {
  background: #fff8e8; border: 1px solid #e6c97a; color: #6a4b00;
  padding: .75rem 1rem; border-radius: 12px; font-size: .88rem; margin-bottom: 1rem;
}
.progress-wrap { margin: 0 0 1rem; }
.progress-label { display: flex; justify-content: space-between; font-size: .82rem; color: var(--muted); margin-bottom: .35rem; }
.progress-bar {
  height: 10px; background: rgba(13,126,168,.12); border-radius: 99px; overflow: hidden;
}
.progress-bar > span {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--royal), var(--royal-deep));
  transition: width .25s ease;
}
.phase-pill {
  display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .04em;
  text-transform: uppercase; color: var(--royal-deep);
  background: var(--royal-soft); border-radius: 99px; padding: .25rem .65rem; margin-bottom: .5rem;
}
.step-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1.15rem 1.2rem 1.25rem; margin-bottom: 1rem;
}
.step-card h2 { margin: 0 0 .35rem; font-size: 1.15rem; color: var(--royal-deep); }
.step-card .help { margin: 0 0 1rem; color: var(--muted); font-size: .9rem; line-height: 1.45; }
.grid { display: grid; grid-template-columns: 1fr; gap: .65rem; }
@media (min-width: 640px) {
  .grid.cols-2 { grid-template-columns: 1fr 1fr; }
  .grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
}
.choice {
  appearance: none; text-align: left; cursor: pointer;
  border: 2px solid var(--border); border-radius: 14px; background: #fff;
  padding: .85rem .9rem; transition: border-color .15s, box-shadow .15s, transform .1s;
}
.choice:hover { border-color: var(--royal); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(13,126,168,.12); }
.choice.is-selected {
  border-color: var(--royal);
  box-shadow: 0 0 0 3px rgba(13,126,168,.2);
  background: var(--royal-soft);
}
.choice .label { display: block; font-weight: 700; color: var(--royal-deep); margin-bottom: .2rem; }
.choice .meta { display: block; font-size: .82rem; color: var(--muted); line-height: 1.35; }
.choice .price { display: block; margin-top: .45rem; font-size: .85rem; font-weight: 700; color: var(--ok); }
.nav {
  display: flex; gap: .65rem; flex-wrap: wrap; margin-top: 1rem;
}
button.btn {
  appearance: none; border: none; border-radius: 12px; padding: .7rem 1.1rem;
  font-weight: 700; font-size: .95rem; cursor: pointer;
}
.btn-primary { background: var(--royal); color: #fff; }
.btn-primary:disabled { opacity: .45; cursor: not-allowed; }
.btn-ghost { background: transparent; color: var(--royal-deep); border: 1.5px solid var(--border); }
.baseline-box {
  border: 2px solid var(--royal); background: linear-gradient(180deg, #fff, var(--royal-soft));
  border-radius: var(--radius); padding: 1rem 1.1rem; margin: 1rem 0;
}
.baseline-box h3 { margin: 0 0 .35rem; color: var(--royal-deep); font-size: 1.05rem; }
.baseline-box .big {
  font-size: 1.65rem; font-weight: 800; color: var(--royal-deep); margin: .35rem 0;
}
.baseline-box ul { margin: .5rem 0 0; padding-left: 1.1rem; color: var(--muted); font-size: .88rem; }
.chip-row { display: flex; flex-wrap: wrap; gap: .45rem; }
.chip {
  appearance: none; border: 1.5px solid var(--border); background: #fff;
  border-radius: 999px; padding: .45rem .8rem; font-size: .84rem; font-weight: 650;
  color: var(--royal-deep); cursor: pointer;
}
.chip.is-selected { background: var(--royal); color: #fff; border-color: var(--royal); }
.summary {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1rem; font-size: .9rem; line-height: 1.45;
}
.summary dt { font-weight: 700; color: var(--royal-deep); margin-top: .55rem; }
.summary dd { margin: .15rem 0 0; color: var(--muted); }
.hidden { display: none !important; }

.choice.has-image { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.choice-img { display: block; width: 100%; aspect-ratio: 16 / 9; background: #dce8ee; }
.choice-img img { display: block; width: 100%; height: 100%; object-fit: cover; }
.choice-body { display: block; padding: .75rem .9rem .85rem; }
.choice.has-image.is-selected .choice-img img { opacity: .96; }