:root {
  --bg: #f7f6f2; --surface: #ffffff; --ink: #1b1d1f; --muted: #5b6066; --line: #dedbd2;
  --accent: #1f5f4a; --accent-ink: #ffffff; --accent-soft: #e3efe9;
  --warn: #8a5a00; --warn-bg: #fff4dc; --err: #9b1c1c; --err-bg: #fde8e8;
  --pos: #1f5f4a; --neg: #9b1c1c;
  --radius: 10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121414; --surface: #1b1e1e; --ink: #e9e8e4; --muted: #a2a7ab; --line: #2e3333;
    --accent: #5fb393; --accent-ink: #0d1412; --accent-soft: #1d2e28;
    --warn: #f0c060; --warn-bg: #2e2612; --err: #f39b9b; --err-bg: #331a1a;
    --pos: #6fcaa6; --neg: #f39b9b;
  }
}
:root[data-theme="dark"] {
  --bg: #121414; --surface: #1b1e1e; --ink: #e9e8e4; --muted: #a2a7ab; --line: #2e3333;
  --accent: #5fb393; --accent-ink: #0d1412; --accent-soft: #1d2e28;
  --warn: #f0c060; --warn-bg: #2e2612; --err: #f39b9b; --err-bg: #331a1a;
  --pos: #6fcaa6; --neg: #f39b9b;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--font); }
a { color: var(--accent); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 720px; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .6em; }
h1 { font-size: clamp(1.9rem, 4.5vw, 3rem); letter-spacing: -.02em; max-width: 18ch; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.1rem; margin-top: 1.6em; }
section { padding: 56px 0; border-bottom: 1px solid var(--line); }
.fine { color: var(--muted); font-size: .88rem; }

.top { position: sticky; top: 0; z-index: 5; background: var(--bg); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 56px; }
.logo { font-weight: 700; letter-spacing: -.01em; white-space: nowrap; }
.logo em { font-style: normal; color: var(--accent); font-weight: 600; }
@media (max-width: 560px) { .logo em { display: none; } }
nav { display: flex; gap: 18px; overflow-x: auto; }
nav a { color: var(--muted); text-decoration: none; font-size: .92rem; white-space: nowrap; }
nav a:hover { color: var(--ink); }

.hero { padding: 72px 0 64px; }
.kicker { color: var(--accent); font-weight: 600; font-size: .9rem; text-transform: uppercase; letter-spacing: .06em; }
.lead { font-size: 1.2rem; max-width: 60ch; color: var(--ink); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 12px; }

.btn, button, .file {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: inherit; font-size: .95rem; font-weight: 600; cursor: pointer;
  padding: 10px 16px; border-radius: var(--radius); border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-ink); text-decoration: none;
}
.btn.ghost, button.ghost, .file.ghost { background: transparent; color: var(--accent); }
button.danger { border-color: var(--err); color: var(--err); }
button:focus-visible, .btn:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 3px solid var(--accent); outline-offset: 2px;
}
.file input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.file { position: relative; }

.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.why h2 { font-size: 1.15rem; }
@media (max-width: 760px) { .grid3, .grid2 { grid-template-columns: 1fr; } }

.formula { display: block; margin: 10px 0; padding: 10px 14px; background: var(--accent-soft); border-radius: var(--radius); font-size: .93rem; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 12px; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
th { font-weight: 600; color: var(--muted); font-size: .82rem; }
th .hint { display: block; font-weight: 400; }
tr:last-child td { border-bottom: 0; }
.ops input, .ops select, .taux input, .wait input {
  font: inherit; font-size: .92rem; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 7px 9px; min-width: 0; width: 100%;
}
.ops td:nth-child(1) { min-width: 150px; }
.ops td:nth-child(2) { min-width: 130px; }
.ops td:nth-child(3), .ops td:nth-child(4), .ops td:nth-child(5) { min-width: 120px; }
.ops input:disabled { opacity: .35; }
button.x { padding: 4px 10px; background: transparent; color: var(--muted); border-color: var(--line); }
.res td { font-variant-numeric: tabular-nums; white-space: nowrap; }
.res td.pos { color: var(--pos); font-weight: 600; }
.res td.neg { color: var(--neg); font-weight: 600; }

#messages p { margin: 8px 0; padding: 8px 12px; border-radius: 8px; font-size: .92rem; }
#messages .err { background: var(--err-bg); color: var(--err); }
#messages .warn { background: var(--warn-bg); color: var(--warn); }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.card p { margin: 2px 0; font-size: .92rem; }
.card .y { color: var(--muted); font-weight: 600; }
.card .big { font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.card .ok { color: var(--pos); font-weight: 600; margin-top: 8px; }
.card .due { color: var(--warn); font-weight: 600; margin-top: 8px; }
.taux { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 16px 0 4px; }
.taux input { width: 90px; }
#exporter { margin-top: 12px; }

.limits { margin-top: 36px; padding: 18px 20px; border-left: 4px solid var(--accent); background: var(--surface); border-radius: 0 var(--radius) var(--radius) 0; }
.limits h3 { margin-top: 0; }
.privacy ul, .limits ul { padding-left: 1.2em; }
.privacy li { margin: 8px 0; }
.privacy .no h3 { color: var(--muted); }

.wait .row { display: flex; gap: 8px; margin-top: 8px; }
.wait .row input { flex: 1; }
@media (max-width: 520px) { .wait .row { flex-direction: column; } }

details { border-bottom: 1px solid var(--line); padding: 12px 0; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--ink); }
.sources li { margin: 6px 0; font-size: .92rem; }
.foot { padding: 28px 0; color: var(--muted); font-size: .85rem; }

/* Pages secondaires (merci, mentions légales, confidentialité) */
a.logo { color: var(--ink); text-decoration: none; }
.page { padding: 48px 0 32px; }
.doc h2 { margin-top: 32px; font-size: 1.15rem; }
.doc dl { display: grid; grid-template-columns: minmax(0, auto) minmax(0, 1fr); gap: 6px 18px; }
.doc dt { color: var(--muted); }
.doc dd { margin: 0; }
.foot a { color: var(--muted); }
@media (max-width: 560px) { .doc dl { grid-template-columns: 1fr; } .doc dd { margin-bottom: 8px; } }

/* Téléchargement et dons */
ul.dl { list-style: none; padding: 0; margin: 16px 0; }
ul.dl li { padding: 10px 0; border-bottom: 1px solid var(--line); }
ul.dl a { font-weight: 650; }
.dons { display: flex; gap: 10px; flex-wrap: wrap; margin: 14px 0; }
.dons button { min-width: 88px; font-size: 1.05rem; }
.don-qr { width: min(280px, 80vw); background: #fff; padding: 12px; border-radius: var(--radius); margin: 16px 0; }
.don-qr svg { display: block; width: 100%; height: auto; }
.bolt11 { font-family: ui-monospace, Menlo, monospace; font-size: .78rem; word-break: break-all; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 10px; }
.msg { padding: 9px 12px; border-radius: 8px; background: var(--warn-bg); color: var(--warn); }
.dons .montant { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; }
.dons .montant input { width: 72px; font: inherit; text-align: right; padding: 8px 10px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); color: var(--ink); }