/* PAQ — quiet European utility. System fonts only (no third-party font requests). */
:root {
  --ground: #F4F5F7; --card: #FFFFFF; --ink: #111317; --muted: #5B606B; --line: #E4E6EA; --line-strong: #C9CDD4;
  --accent: #2B3BEA; --accent-ink: #FFFFFF; --accent-soft: #EEF0FE; --ok: #0B7A4B; --ok-soft: #E3F4EC; --danger: #B3261E;
  --field: #F9FAFB;
  --sans: Inter, ui-sans-serif, -apple-system, "Segoe UI", system-ui, sans-serif;
  --display: "Space Grotesk", ui-sans-serif, -apple-system, "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #0F1013; --card: #17191E; --ink: #ECEDF0; --muted: #A2A7B2; --line: #2A2D34; --line-strong: #3A3E47;
    --accent: #7C89FF; --accent-ink: #0B0C10; --accent-soft: #1E2240; --ok: #4CC38A; --ok-soft: #12291F; --danger: #FF8A80;
    --field: #121418;
  }
}
:root[data-theme="dark"] {
  --ground: #0F1013; --card: #17191E; --ink: #ECEDF0; --muted: #A2A7B2; --line: #2A2D34; --line-strong: #3A3E47;
  --accent: #7C89FF; --accent-ink: #0B0C10; --accent-soft: #1E2240; --ok: #4CC38A; --ok-soft: #12291F; --danger: #FF8A80;
  --field: #121418;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--ground); color: var(--ink); font: 16px/1.5 var(--sans); min-height: 100vh; display: flex; flex-direction: column; }
svg { fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 16px clamp(16px, 4vw, 40px); background: var(--card); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 12px; }
/* Logo "In transit": p and q are the two devices, the accent a is the file. */
.logo { display: flex; color: var(--ink); }
.logo svg { display: block; height: 24px; width: auto; }
.logo circle { fill: none; stroke-width: 20; }
.logo rect { stroke: none; }
.logo .i { stroke: currentColor; } .logo rect.i { fill: currentColor; }
.logo .a { stroke: var(--accent); } .logo rect.a { fill: var(--accent); }
.logo .dot { fill: var(--accent); stroke: none; }
.tag { font-size: 13px; color: var(--muted); }
.lock { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); }

main { flex: 1; width: 100%; max-width: 960px; margin: 0 auto; padding: clamp(28px, 6vw, 56px) 16px 40px;
  display: flex; flex-direction: column; gap: 20px; }
h1 { margin: 0; font: 700 clamp(34px, 6vw, 48px)/1.05 var(--display); letter-spacing: -0.03em; }
h2 { margin: 0; font: 700 26px/1.15 var(--display); letter-spacing: -0.02em; }
.lead { margin: 0; font-size: 18px; color: var(--muted); max-width: 620px; }
p { margin: 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.label, .eyebrow { font-size: 13px; font-weight: 600; color: var(--muted); }
.eyebrow { text-transform: uppercase; letter-spacing: 0.06em; }
#send-pick { display: flex; flex-direction: column; gap: 20px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 20px; }
.stack { display: flex; flex-direction: column; gap: 16px; padding: clamp(20px, 4vw, 32px); }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row.center { justify-content: center; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }
.actions > * { flex: 1 1 160px; }

.btn { font: 600 15px/1 var(--sans); min-height: 44px; padding: 0 20px; border-radius: 12px; border: 1px solid var(--line-strong);
  background: var(--card); color: var(--ink); cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
  text-decoration: none; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.big { min-height: 52px; font-size: 16px; border-radius: 14px; }
.btn.danger { color: var(--danger); }
.btn:focus-visible, input:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
input { font: inherit; color: var(--ink); background: var(--field); border: 1px solid var(--line-strong); border-radius: 12px; min-height: 44px; padding: 0 14px; }
#link { flex: 1 1 260px; min-width: 0; font: 14px var(--mono); }
#test-mb { width: 100px; }

.drop { background: var(--card); border: 2px dashed var(--line-strong); border-radius: 20px; padding: clamp(32px, 7vw, 56px) 20px;
  display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; }
.drop.over { border-color: var(--accent); background: var(--accent-soft); }
.drop-icon { color: var(--accent); }
.drop-title { font-size: 20px; font-weight: 600; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.facts p { margin-top: 6px; font-size: 14px; color: var(--muted); }

.summary { display: flex; gap: 14px; align-items: center; }
.file-icon { width: 52px; height: 52px; border-radius: 14px; background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center; flex: none; }
.summary-text { min-width: 0; }
.name { font-size: 20px; font-weight: 600; overflow-wrap: anywhere; }

.split { display: flex; flex-wrap: wrap; gap: 20px; align-items: flex-start; }
.split > .stack { flex: 999 1 480px; min-width: 0; }
.qr-card { flex: 1 1 240px; display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; }
#qr svg { width: 200px; height: 200px; background: #fff; padding: 10px; border-radius: 12px; display: block; }
.note { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border-radius: 12px; background: var(--ground); font-size: 14px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); flex: none; margin-top: 6px; animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .35; } }
@media (prefers-reduced-motion: reduce) { .dot { animation: none; } }

.offer-title { font-size: clamp(26px, 5vw, 34px); overflow-wrap: anywhere; }
.file-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.file-list:empty { display: none; }
.file-list li { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.file-list li span:first-child { overflow-wrap: anywhere; }
.file-list li span:last-child, .file-list li.more { color: var(--muted); white-space: nowrap; }

#transfer { display: flex; flex-direction: column; gap: 14px; }
.pct { font: 700 clamp(48px, 12vw, 64px)/1 var(--display); letter-spacing: -0.04em; }
.bar { height: 10px; background: var(--line); border-radius: 99px; overflow: hidden; }
#bar { height: 100%; width: 0; background: var(--accent); border-radius: 99px; transition: width .3s; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.stats .card { padding: 14px; display: flex; flex-direction: column; gap: 4px; }
.stats span { font-size: 12px; color: var(--muted); }
.stats b { font-size: 17px; font-variant-numeric: tabular-nums; }

.ok-badge { width: 56px; height: 56px; border-radius: 50%; background: var(--ok-soft); color: var(--ok); display: flex; align-items: center; justify-content: center; }
.ok-badge svg { stroke-width: 2.4; }
#done.failed .ok-badge { background: #FDECEA; color: var(--danger); }
.fp { border-radius: 14px; background: var(--ground); padding: 14px 16px; display: flex; flex-direction: column; gap: 4px; }
.fp-value { font: 600 20px var(--mono); letter-spacing: 0.02em; }
.fp-note { font-size: 13px; font-weight: 600; color: var(--ok); }
.fp-note.bad { color: var(--danger); }

.status { min-height: 1.5em; color: var(--muted); font-size: 14px; }
.dev { font-size: 13px; color: var(--muted); }
.dev summary { cursor: pointer; }
.dev .row, .dev .btn { margin-top: 10px; }
#log { font: 12px var(--mono); max-height: 280px; overflow: auto; margin-top: 8px; }
#log div { padding: 2px 0; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
.foot { padding: 16px clamp(16px, 4vw, 40px); border-top: 1px solid var(--line); background: var(--card); font-size: 13px; color: var(--muted);
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; }
.made { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; color: var(--ink); }
.flag { flex: none; border-radius: 2px; box-shadow: 0 0 0 1px var(--line); }
.flag * { stroke: none; }
[hidden] { display: none !important; }