/* Pražská dílna (nefedov.cz DESIGN.md): betonový papír, grafitová tuš, jediný signální oranžový akcent jako výplň,
   Bricolage Grotesque v nadpisech, Geist v textu, Geist Mono pro odkaz a tajemství. Hranaté plochy, 6 px jen ovládací prvky. */
:root {
  --paper: #f3f3f0; --surface: #ffffff; --ink: #151514; --muted: #595955; --line: #d9d9d3;
  --accent: #ff5a1f; --accent-ink: #151514; --accent-text: #b8400e; --band: #151514; --band-ink: #f3f3f0; --band-muted: #a3a39d;
  --danger: #b42318;
  --display: "Bricolage Grotesque", "Arial Black", Arial, sans-serif;
  --sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #121211; --surface: #1b1b1a; --ink: #ededea; --muted: #9d9d97; --line: #2d2d2b;
    --accent: #ff6a33; --accent-text: #ff8c5e; --band: #0b0b0a; --band-ink: #ededea; --band-muted: #9d9d97; --danger: #ff8a80; color-scheme: dark; }
}
* { box-sizing: border-box }
html, body { margin: 0 }
body { background: var(--paper); color: var(--ink); font: 16px/1.625 var(--sans); min-height: 100vh; display: flex; flex-direction: column; -webkit-font-smoothing: antialiased;
  padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
[hidden] { display: none !important }
a { color: inherit }
.wrap { max-width: 680px; width: 100%; margin: 0 auto }

/* lišta: oranžový čtverec EN jako jediný znak značky */
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 0; border-bottom: 1px solid var(--line) }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none }
.mark { display: inline-grid; place-items: center; width: 40px; height: 40px; background: var(--accent); color: var(--accent-ink); font: 800 16px/1 var(--display); letter-spacing: -.02em }
.brand-name { font: 700 18px/1.2 var(--display); letter-spacing: -.01em }
.brand-name .dim { color: var(--muted); font-weight: 700 }
.lang { font: 500 13px/1 var(--sans); letter-spacing: .06em; text-decoration: none; border: 1px solid var(--line); border-radius: 6px; padding: 8px 10px; color: var(--muted) }
.lang:hover, .lang:focus-visible { color: var(--ink); border-color: var(--ink) }

main { padding: 40px 0 56px; flex: 1 }
section { display: grid; gap: 18px }
.eyebrow { font: 400 12px/1.6 var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin: 0 }
h1 { font: 800 clamp(36px, 8vw, 56px)/1.02 var(--display); letter-spacing: -.03em; margin: 0; text-wrap: balance }
.hl { background: var(--accent); color: var(--accent-ink); padding: 0 .12em; box-decoration-break: clone; -webkit-box-decoration-break: clone }
.lede { margin: 0; color: var(--muted); font-size: 18px; max-width: 56ch }
.dim { color: var(--muted) }

form, .panel { display: grid; gap: 18px; background: var(--surface); border: 1px solid var(--line); padding: 24px }
@media (max-width: 480px) { form, .panel { padding: 18px } }
.lbl { display: block; font: 500 14px/1.4 var(--sans); margin-bottom: 8px }
.lbl .dim { font-weight: 400 }
textarea, input[type=text], input[type=password], select {
  width: 100%; min-width: 0; font: 16px/1.5 var(--sans); color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 6px; padding: 10px 14px; }
select { appearance: none; -webkit-appearance: none; padding-right: 40px; cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: right 19px center, right 14px center; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat }
textarea { font: 15px/1.55 var(--mono); resize: vertical; min-height: 160px }
textarea:focus, input:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr } }
.filerow { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; font-size: 14px }
.filerow input[type=file] { position: absolute; width: 1px; height: 1px; opacity: 0 }
.filebtn { cursor: pointer; border: 1px dashed var(--line); border-radius: 6px; padding: 8px 12px; font-weight: 500 }
.filerow input[type=file]:focus-visible + .filebtn, .filebtn:hover { border-color: var(--ink) }
#fileName { overflow-wrap: anywhere }

button, .btn { font: 600 15px/1.4 var(--sans); border-radius: 6px; padding: 12px 20px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; min-height: 46px; border: 0 }
.primary { background: var(--accent); color: var(--accent-ink) }
.primary:hover { filter: brightness(.96) }
.primary:disabled { opacity: .6; cursor: progress }
.ghost { background: transparent; color: var(--ink); border: 1px solid color-mix(in srgb, var(--ink) 25%, transparent) }
.ghost:hover { border-color: var(--ink) }
.link { background: none; border: 0; padding: 0; min-height: 0; color: var(--accent-text); text-decoration: underline; font-weight: 400; font-size: 14px }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px }
.row { display: flex; flex-wrap: wrap; gap: 10px }
.linkbox { display: flex; gap: 10px; flex-wrap: wrap }
.linkbox input { flex: 1 1 260px; font: 14px/1.5 var(--mono) }
.secret { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; font: 15px/1.55 var(--mono); background: var(--surface); border: 1px solid var(--line); border-left: 4px solid var(--accent); padding: 16px 18px; max-height: 60vh; overflow: auto }
#shownTextWrap { display: grid; gap: 12px; justify-items: start }
#shownTextWrap .secret { justify-self: stretch }
.err { margin: 0; color: var(--danger); font-weight: 500 }
.note { margin: 0; background: var(--band); color: var(--band-ink); padding: 14px 16px; font-size: 15px }

/* tmavý pruh se třemi fakty, číslo v oranžové */
.facts { margin: 8px 0 0; padding: 24px; list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; background: var(--band); color: var(--band-muted); font-size: 14px; line-height: 1.5 }
.facts b { display: block; font: 800 30px/1 var(--display); letter-spacing: -.02em; color: var(--accent); margin-bottom: 8px; font-variant-numeric: tabular-nums }
@media (max-width: 640px) { .facts { grid-template-columns: 1fr; gap: 16px } .facts b { font-size: 26px } }

.foot { padding: 20px 0 28px; border-top: 1px solid var(--line); font: 400 12px/1.6 var(--mono); color: var(--muted) }
.foot a { color: var(--accent-text) }
@media (prefers-color-scheme: dark) { .foot a, .link { color: var(--accent-text) } }