:root {
  --bg: #EDF0F3; --surface: #F8FAFB; --fg: #14202B; --muted: #52606D; --line: #D3DAE1;
  --accent: #0B6B8C; --accent-ink: #FFFFFF; --accent-soft: #D7EBF2;
  --gain: #17744A; --gain-soft: #D5EDE0; --loss: #B23A2E; --loss-soft: #F5DAD6;
  --display: "Bricolage Grotesque", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --body: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0D141B; --surface: #141D26; --fg: #E6ECF1; --muted: #9AA8B5; --line: #26323E;
    --accent: #5DBBD9; --accent-ink: #06222C; --accent-soft: #12303B;
    --gain: #4FC98B; --gain-soft: #12301F; --loss: #FF8E80; --loss-soft: #3A1B18;
    color-scheme: dark;
  }
}
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 400 1rem/1.6 var(--body);
  padding: 0 max(16px, env(safe-area-inset-right, 0px)) 3rem max(16px, env(safe-area-inset-left, 0px)); }
.wrap { max-width: 560px; margin: 0 auto; }
h1, h2, h3 { font-family: var(--display); margin: 0; letter-spacing: -.02em; text-wrap: balance; }
p { margin: 0; }
a { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 1rem; border-bottom: 1px solid var(--line); margin-bottom: 2rem; }
.brand { display: inline-flex; align-items: center; gap: .5rem; font: 700 1.2rem var(--display); color: inherit; text-decoration: none; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 1.5rem; }
.panel + .panel { margin-top: 1rem; }
.panel h1 { font-size: 1.7rem; margin-bottom: .4rem; }
.panel h2 { font-size: 1.25rem; margin-bottom: .4rem; }
.sub { color: var(--muted); margin-bottom: 1.1rem; }
.fine { font-size: .85rem; color: var(--muted); margin-top: .8rem; }
.field { margin-bottom: .9rem; }
label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: .3rem; }
input { font: 400 1rem var(--body); color: var(--fg); background: var(--bg); border: 1px solid var(--line);
  border-radius: 6px; padding: .6rem .7rem; min-height: 2.75rem; width: 100%; }
.btn { font: 600 .95rem var(--body); display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  padding: .65rem 1.1rem; border-radius: 6px; border: 1px solid var(--fg); background: transparent; color: var(--fg);
  cursor: pointer; min-height: 2.75rem; text-decoration: none; }
.btn:hover { background: var(--bg); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.block { width: 100%; }
.btn:disabled { opacity: .6; cursor: progress; }
.linkbtn { background: none; border: 0; padding: 0; color: var(--accent); font: inherit; text-decoration: underline; cursor: pointer; }
.tabs { display: flex; gap: .25rem; margin-bottom: 1.2rem; border-bottom: 1px solid var(--line); }
.tabs button { background: none; border: 0; border-bottom: 2px solid transparent; padding: .5rem .75rem; font: 600 .95rem var(--body); color: var(--muted); cursor: pointer; margin-bottom: -1px; }
.tabs button[aria-selected="true"] { color: var(--fg); border-bottom-color: var(--accent); }
.msg { font-size: .9rem; margin-top: .7rem; min-height: 1.2em; }
.msg.err { color: var(--loss); }
.msg.ok { color: var(--gain); }
.oauth { display: grid; gap: .5rem; margin-bottom: 1rem; }
.or { text-align: center; color: var(--muted); font-size: .85rem; margin: .25rem 0 1rem; }
.price { font: 700 2rem var(--display); letter-spacing: -.02em; margin: .2rem 0 1rem; }
.row { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.who { font-size: .9rem; color: var(--muted); }
.badge { display: inline-block; font: 500 .75rem var(--mono); text-transform: uppercase; letter-spacing: .08em; padding: .15rem .5rem; border-radius: 99px; background: var(--gain-soft); color: var(--gain); }
[hidden] { display: none !important; }