:root {
  --bg: #f2eee4;
  --ink: #1d1914;
  --muted: #6d665b;
  --card: #fffaf1;
  --line: #ddd4c4;
  --accent: #3c4f45;
  --soft: #dce4d8;
  --warn: #7d4030;
  --warn-soft: #f3e2d8;
  --ok: #2b5340;
  --ok-soft: #d7e6d8;
  --shadow: 0 10px 28px rgba(40, 32, 20, 0.06);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  background:
    radial-gradient(1200px 400px at 10% -10%, #e7efe6 0%, transparent 50%),
    var(--bg);
  color: var(--ink);
}

#app {
  max-width: 430px;
  margin: 0 auto;
  min-height: 100dvh;
  padding: calc(18px + var(--safe-t)) 16px calc(92px + var(--safe-b));
}

.top {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 18px;
}
.mark {
  width: 36px;
  height: 36px;
  margin: 0;
  border: 1.5px solid var(--accent);
  border-radius: 18px 18px 8px 8px;
  background:
    linear-gradient(180deg, transparent 46%, var(--soft) 46%),
    #fffaf1;
}
.brand {
  margin: 0;
  font-family: Palatino, "Iowan Old Style", Georgia, serif;
  font-size: 22px;
  letter-spacing: 0.04em;
}
.sub { margin: 2px 0 0; color: var(--muted); font-size: 13px; }

.view { display: grid; gap: 12px; }
.state, .note, .faq p, .step p, .key, .linkbox, .empty {
  margin: 0;
  line-height: 1.45;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 16px;
  box-shadow: var(--shadow);
}
.card h2, .card h3 {
  margin: 0 0 8px;
  font-family: Palatino, "Iowan Old Style", Georgia, serif;
  font-size: 18px;
  font-weight: 500;
}
.kicker {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.big { font-size: 20px; font-family: Palatino, Georgia, serif; }

.pill {
  display: inline-block;
  padding: 4px 9px;
  border-radius: 999px;
  font-size: 12px;
  background: var(--soft);
  color: var(--accent);
}
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.ok { background: var(--ok-soft); color: var(--ok); }

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.grid .wide { grid-column: 1 / -1; }

.choices { display: flex; flex-wrap: wrap; gap: 8px; }
.choices button, .btn, .copy {
  appearance: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 12px;
  padding: 10px 12px;
  font: inherit;
  font-size: 14px;
  min-height: 44px;
}
.choices button.on, .btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #f7f4ec;
}
.btn.primary { width: 100%; }
.copy { width: 100%; margin-top: 8px; }
.choices button:disabled { opacity: 0.45; }

.note {
  background: var(--warn-soft);
  border: 1px solid #e4c8b8;
  border-radius: 14px;
  padding: 12px 14px;
  color: var(--warn);
}
.oknote {
  background: var(--ok-soft);
  border-radius: 14px;
  padding: 12px 14px;
  color: var(--ok);
}
.list { margin: 0; padding-left: 18px; color: var(--muted); }
.list li { margin: 4px 0; }
.price { color: var(--muted); font-size: 13px; margin: 0; }

.key, .linkbox {
  word-break: break-all;
  background: #f7f1e6;
  border-radius: 10px;
  padding: 10px;
  font-size: 12px;
}
.steps { color: var(--muted); font-size: 13px; margin: 0 0 8px; }
.faq details {
  border-top: 1px solid var(--line);
  padding: 8px 0;
}
.faq details:first-child { border-top: 0; padding-top: 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { margin-top: 6px; color: var(--muted); }

.tabs {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: min(430px, 100%);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
  padding: 8px 8px calc(8px + var(--safe-b));
  background: rgba(242, 238, 228, 0.94);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.tabs a {
  text-align: center;
  text-decoration: none;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.2;
  padding: 10px 2px;
  border-radius: 10px;
}
.tabs a.on { color: var(--ink); background: #fff; }

@media (min-width: 720px) {
  body { background: #e7e1d4; }
  #app { margin-top: 24px; }
}