:root {
  --bg0: #e6ebe8;
  --bg1: #eef3f0;
  --card: #ffffff;
  --ink: #15241f;
  --mute: #5a6d66;
  --line: #c5d4ce;
  --acc: #1e3830;
  --acc2: #2f6b5a;
  --acc-soft: #d4ebe3;
  --ok: #1f6b4a;
  --ok-soft: #d8f0e4;
  --warn: #8a5a10;
  --warn-soft: #f5e6c8;
  --shadow: 0 10px 30px rgba(21, 36, 31, 0.06);
  --radius: 16px;
  --font: "Segoe UI", "Helvetica Neue", ui-sans-serif, sans-serif;
  --display: Georgia, "Times New Roman", serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg0: #0f1714; --bg1: #15201c; --card: #1a2822; --ink: #e7f0ec; --mute: #9aada4;
    --line: #2d3e38; --acc: #7ec4b0; --acc2: #5aaf9a; --acc-soft: #243830;
    --ok: #6fcea0; --ok-soft: #1d3a2e; --warn: #e0b45a; --warn-soft: #3a3018;
    --shadow: none;
  }
}
:root[data-theme="dark"] {
  --bg0: #0f1714; --bg1: #15201c; --card: #1a2822; --ink: #e7f0ec; --mute: #9aada4;
  --line: #2d3e38; --acc: #7ec4b0; --acc2: #5aaf9a; --acc-soft: #243830;
  --ok: #6fcea0; --ok-soft: #1d3a2e; --warn: #e0b45a; --warn-soft: #3a3018;
  --shadow: none;
}
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; color: var(--ink); font: 16px/1.5 var(--font);
  background:
    radial-gradient(1000px 460px at 6% -10%, #b9d8ce 0%, transparent 55%),
    radial-gradient(800px 400px at 100% 0%, #c8dcd4 0%, transparent 50%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  padding: env(safe-area-inset-top, 0) 0 env(safe-area-inset-bottom, 0);
}
.top { max-width: 720px; margin: 0 auto; padding: 20px 16px 0; display: flex; justify-content: space-between; gap: 12px; }
.brand { display: flex; gap: 12px; align-items: center; }
.mark {
  width: 42px; height: 42px; border-radius: 12px; flex: 0 0 auto;
  background: linear-gradient(145deg, #1e3830, #2f6b5a 55%, #5aaa90);
  box-shadow: inset 0 0 0 2px rgba(255,255,255,.16);
}
h1 { margin: 0; font-family: var(--display); font-size: 1.55rem; letter-spacing: -0.02em; }
.tag { margin: 2px 0 0; color: var(--mute); font-size: .88rem; }
main { max-width: 720px; margin: 0 auto; padding: 14px 16px 48px; }
.lede { color: var(--mute); margin: 0 0 16px; }
.panel {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; margin-bottom: 14px; box-shadow: var(--shadow);
}
.warn-panel { border-left: 4px solid var(--warn); }
.panel h2 { margin: 0 0 8px; font-size: 1.05rem; font-family: var(--display); }
.hint { margin: 6px 0 0; color: var(--mute); font-size: .85rem; }
label { display: block; font-weight: 650; font-size: .88rem; margin-bottom: 4px; }
select {
  width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg1); color: var(--ink); font: inherit;
}
.ghost {
  font: inherit; cursor: pointer; border-radius: 10px;
  background: transparent; color: var(--ink); border: 1px solid var(--line);
  padding: 8px 12px; font-weight: 600;
}
.cat-list { display: grid; gap: 14px; margin-bottom: 14px; }
.cat {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow);
}
.cat-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 10px;
  margin-bottom: 6px; flex-wrap: wrap;
}
.cat h2 { margin: 0; font-family: var(--display); font-size: 1.25rem; letter-spacing: -0.02em; }
.badge {
  font-size: .72rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  color: var(--acc2); background: var(--acc-soft); padding: 4px 8px; border-radius: 999px;
}
.cat-blurb { margin: 0 0 12px; color: var(--mute); font-size: .92rem; }
.product {
  padding: 12px 0; border-top: 1px solid var(--line);
}
.product:first-of-type { border-top: 0; padding-top: 0; }
.product h3 { margin: 0 0 4px; font-size: 1rem; }
.product .used,
.product .helps { margin: 0 0 4px; font-size: .9rem; color: var(--mute); }
.product .used strong,
.product .helps strong { color: var(--ink); font-weight: 650; }
.tool-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.tool-links a {
  font-size: .82rem; font-weight: 650; color: var(--acc2); text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--acc2) 40%, transparent);
}
.tool-links a:hover { color: var(--acc); }
.shop-links { display: grid; gap: 8px; margin-top: 10px; }
.shop-links a {
  display: block; text-align: center; background: var(--acc); color: #fff;
  text-decoration: none; font-weight: 700; padding: 12px; border-radius: 10px;
}
.shop-links a.secondary {
  background: transparent; color: var(--acc); border: 1px solid var(--line);
}
.flow-list { margin: 8px 0 0; padding-left: 1.2rem; }
.flow-list li { margin-bottom: 8px; color: var(--mute); }
.flow-list strong { color: var(--ink); }
.disclaimer { font-size: .82rem; color: var(--mute); margin: 8px 0 0; }
.back { margin-top: 16px; font-size: .9rem; }
.back a { color: var(--acc2); font-weight: 650; }
.hidden { display: none !important; }