:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --fg: #1b1f24;
  --muted: #5d6670;
  --line: #e1e4e8;
  --accent: #1f5f8b;
  --accent-soft: #eaf2f8;
  --accent-fg: #ffffff;
  --note: #fff7e3;
  --note-line: #f0d79a;
  --code: #f3f4f6;
  --ok: #2e7d4f;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14171b; --card: #1c2026; --fg: #e8eaed; --muted: #9aa3ad; --line: #2e343c;
    --accent: #6fb0dc; --accent-soft: #1d2b37; --accent-fg: #0d1a24;
    --note: #2b2616; --note-line: #5a4b22; --code: #23282f; --ok: #6cc293;
  }
}
:root[data-theme="dark"] {
  --bg: #14171b; --card: #1c2026; --fg: #e8eaed; --muted: #9aa3ad; --line: #2e343c;
  --accent: #6fb0dc; --accent-soft: #1d2b37; --accent-fg: #0d1a24;
  --note: #2b2616; --note-line: #5a4b22; --code: #23282f; --ok: #6cc293;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 24px 16px 64px; }

header { margin-bottom: 20px; }
h1 { font-size: 26px; line-height: 1.25; margin: 0 0 4px; }
.sub { color: var(--muted); margin: 0; }
.badge {
  display: inline-block; margin-top: 10px; padding: 4px 10px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent); font-size: 14px; font-weight: 600;
}

section { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px 18px 14px; margin: 14px 0; }
h2 { font-size: 19px; margin: 0 0 10px; display: flex; align-items: center; gap: 10px; }
h2 .num {
  flex: none; width: 28px; height: 28px; border-radius: 50%; background: var(--accent); color: var(--accent-fg);
  display: inline-flex; align-items: center; justify-content: center; font-size: 15px;
}
h3 { font-size: 16px; margin: 14px 0 6px; }
p { margin: 6px 0 10px; }
ol, ul { margin: 6px 0 10px; padding-right: 22px; padding-left: 0; }
li { margin: 4px 0; }
.muted { color: var(--muted); font-size: 15px; }

/* Paths */
.paths { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 480px) { .paths { grid-template-columns: 1fr; } }
.path { border: 1px solid var(--line); border-radius: 10px; padding: 12px; }
.path b { display: block; font-size: 16px; margin-bottom: 2px; }
.path .who { color: var(--muted); font-size: 14px; margin-bottom: 6px; }
.path .get { font-size: 14px; }
.path.later { border-style: dashed; color: var(--muted); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 10px 16px;
  border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-fg);
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
}
.btn.secondary { background: transparent; color: var(--accent); }
.btn:focus-visible, .copy:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.setup { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.setup > div { border: 1px solid var(--line); border-radius: 10px; padding: 12px; }
.setup h3 { margin-top: 0; }
@media (max-width: 640px) { .setup { grid-template-columns: 1fr; } }

/* Prompts */
.prompt { border: 1px solid var(--line); border-radius: 10px; background: var(--code); margin: 10px 0; overflow: hidden; }
.prompt .bar { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 6px 8px 6px 12px; border-bottom: 1px solid var(--line); }
.prompt .label { font-size: 14px; color: var(--muted); font-weight: 600; }
.prompt .text { margin: 0; padding: 12px; white-space: pre-wrap; word-break: break-word; font: inherit; font-size: 15px; }
.copy {
  min-height: 36px; padding: 6px 14px; border-radius: 6px; border: 1px solid var(--accent);
  background: var(--card); color: var(--accent); font: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
}
.copy.ok { background: var(--ok); border-color: var(--ok); color: #fff; }

.note { background: var(--note); border: 1px solid var(--note-line); border-radius: 8px; padding: 8px 12px; margin: 10px 0; font-size: 15px; }

.scenario { border-right: 4px solid var(--accent); background: var(--accent-soft); border-radius: 8px; padding: 12px 14px; margin: 8px 0 12px; }
.scenario p { margin: 4px 0; }
.scenario ol { margin: 6px 0; }

details { border: 1px solid var(--line); border-radius: 10px; padding: 0 12px; margin: 10px 0; }
details > summary { cursor: pointer; padding: 12px 0; font-weight: 600; list-style-position: inside; }
details[open] > summary { border-bottom: 1px solid var(--line); margin-bottom: 8px; }

.placeholder { background: var(--note); border: 1px dashed var(--note-line); border-radius: 4px; padding: 0 4px; }
code { background: var(--code); border-radius: 4px; padding: 1px 5px; font-size: 14px; direction: ltr; unicode-bidi: isolate; }

footer { color: var(--muted); font-size: 14px; text-align: center; margin-top: 24px; }