/* desktop.lumen.sorensen.ai — identitat de Lumen: crema sobre tinta, Newsreader (prosa) i JetBrains Mono (retolació),
   filets d'1 px, sense ombres. Variant fosca amb prefers-color-scheme. */
@font-face { font-family: "Newsreader"; src: url("fonts/Newsreader-300.ttf") format("truetype"); font-weight: 300; font-style: normal; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url("fonts/Newsreader-400.ttf") format("truetype"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url("fonts/Newsreader-400i.ttf") format("truetype"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url("fonts/Newsreader-500.ttf") format("truetype"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("fonts/JetBrainsMono-400.ttf") format("truetype"); font-weight: 400; font-style: normal; font-display: swap; }

:root {
  --bg: #FBFAF6; --panel: #FFFFFF; --sunk: #F1EEE6; --ink: #16150F; --ink-soft: #3A382E; --muted: #6F6A5D;
  --line: #ECE8DD; --line-strong: #DFDACD; --rule: #CFC9BA; --invert-ink: #FBFAF6; --err: #9B2C1F; --err-tint: #F8ECE8;
  --serif: "Newsreader", "DejaVu Serif", Georgia, serif;
  --mono: "JetBrains Mono", "DejaVu Sans Mono", ui-monospace, monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16150F; --panel: #1D1B14; --sunk: #24211A; --ink: #EDEAE0; --ink-soft: #CFCABB; --muted: #8F8A7B;
    --line: #2A2820; --line-strong: #37342A; --rule: #4A4638; --invert-ink: #16150F; --err: #E0806B; --err-tint: #2C1C16;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  background: var(--bg); color: var(--ink); font-family: var(--serif); font-size: 17px; line-height: 1.55;
}
a { color: inherit; text-decoration: underline; text-decoration-color: var(--rule); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--ink); }

.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 24px; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 2px; text-decoration: none; }
.brand svg { width: 40px; height: 28px; margin-left: -8px; color: var(--ink); }
.wordmark { font-family: var(--serif); font-weight: 300; font-size: 28px; line-height: 1; letter-spacing: -0.01em; }
.who { font-family: var(--mono); font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 14px; flex-wrap: wrap; justify-content: flex-end; }
.who form { margin: 0; }

main { flex: 1; width: 100%; max-width: 760px; margin: 0 auto; padding: 48px 24px 64px; }
main.narrow { max-width: 420px; }

.eyebrow { display: flex; align-items: center; gap: 12px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.eyebrow::before, .eyebrow::after { content: ""; flex: 1; height: 1px; background: var(--rule); }
.eyebrow.left::before { flex: 0 0 24px; }

h1 { font-family: var(--serif); font-weight: 400; font-size: 40px; line-height: 1.1; letter-spacing: -0.01em; margin: 22px 0 6px; }
h1 .v { font-weight: 300; color: var(--ink-soft); }
h2 { font-family: var(--mono); font-weight: 400; font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin: 40px 0 12px; }
.meta { font-family: var(--mono); font-size: 12px; color: var(--muted); margin: 0 0 28px; }
.lede { color: var(--ink-soft); margin: 0 0 24px; }

.downloads { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line-strong); }
.downloads li { display: grid; grid-template-columns: 1fr auto; gap: 6px 20px; align-items: center; padding: 18px 0; border-bottom: 1px solid var(--line-strong); }
.downloads .name { font-size: 20px; }
.downloads .file { grid-column: 1; font-family: var(--mono); font-size: 12px; color: var(--muted); overflow-wrap: anywhere; }
.downloads .sha { grid-column: 1 / -1; font-family: var(--mono); font-size: 10.5px; color: var(--muted); overflow-wrap: anywhere; margin: 0; }
.downloads .btn { grid-column: 2; grid-row: 1 / span 2; }

.btn, button.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 40px; padding: 0 18px;
  border: 1px solid var(--ink); border-radius: 999px; background: transparent; color: var(--ink);
  font-family: var(--mono); font-size: 13px; text-decoration: none; cursor: pointer; white-space: nowrap;
}
.btn:hover, .btn:focus-visible { background: var(--ink); color: var(--invert-ink); }
.btn.solid { background: var(--ink); color: var(--invert-ink); width: 100%; }
.btn.solid:hover { background: var(--ink-soft); }
.link { border: 0; background: none; padding: 0; color: var(--muted); font: inherit; text-decoration: underline; text-decoration-color: var(--rule); text-underline-offset: 3px; cursor: pointer; }

.notes { margin: 0; padding: 0; list-style: none; }
.notes li { padding: 12px 0; border-bottom: 1px solid var(--line); }
.notes b { font-weight: 500; }
.notes code, kbd { font-family: var(--mono); font-size: 13px; background: var(--sunk); padding: 1px 5px; border-radius: 3px; overflow-wrap: anywhere; }

.empty { padding: 24px 0; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); color: var(--ink-soft); }

form.login { display: flex; flex-direction: column; gap: 16px; margin-top: 28px; }
form.login label { display: flex; flex-direction: column; gap: 6px; font-family: var(--mono); font-size: 12px; color: var(--ink-soft); }
form.login input {
  height: 42px; padding: 0 12px; border: 1px solid var(--line-strong); border-radius: 6px; background: var(--panel);
  color: var(--ink); font-family: var(--serif); font-size: 17px;
}
form.login input:focus { outline: none; border-color: var(--ink); }
form.login .forgot { font-family: var(--mono); font-size: 12px; color: var(--muted); text-align: right; }
.alert { padding: 10px 12px; border: 1px solid var(--err); border-radius: 6px; background: var(--err-tint); color: var(--err); font-size: 15px; margin-top: 20px; }
.info { padding: 10px 12px; border: 1px solid var(--line-strong); border-radius: 6px; background: var(--sunk); color: var(--ink-soft); font-size: 15px; margin-top: 20px; }

footer { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 14px 24px; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 11px; color: var(--muted); }

@media (max-width: 560px) {
  body { font-size: 16px; }
  .top { padding: 12px 16px; }
  main { padding: 32px 16px 48px; }
  h1 { font-size: 32px; }
  .downloads li { grid-template-columns: 1fr; }
  .downloads .btn { grid-column: 1; grid-row: auto; justify-self: start; }
  footer { padding: 12px 16px; }
}