/* Pražská dílna (nefedov.cz DESIGN.md): betonový papír, grafitová tuš, jediný oranžový akcent jako výplň,
   Bricolage Grotesque v nadpisech, Geist v textu, Geist Mono na meta řádky. 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; --ok: #1f7a3a;
  --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; --ok: #6fd08c; 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 }
[hidden] { display: none !important }
a { color: inherit }
.wrap { max-width: 1152px; width: 100%; margin: 0 auto; padding: 0 max(16px, env(safe-area-inset-left, 0px)) }
.narrow { max-width: 760px }

.top { border-bottom: 1px solid var(--line); background: var(--paper) }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 64px }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none }
.mark { display: inline-grid; place-items: center; width: 36px; height: 36px; background: var(--accent); color: var(--accent-ink); font: 800 14px/1 var(--display); letter-spacing: -.02em }
.brand-name { font: 700 18px/1.2 var(--display); letter-spacing: -.01em }
.who { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--muted); min-width: 0 }
.who span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap }

main { padding: 36px 0 64px; flex: 1 }
h1 { font: 800 clamp(32px, 6vw, 48px)/1.04 var(--display); letter-spacing: -.03em; margin: 0; text-wrap: balance }
h2 { font: 700 24px/1.2 var(--display); letter-spacing: -.02em; margin: 0 }
h3 { font: 700 18px/1.3 var(--display); letter-spacing: -.01em; margin: 0 }
.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: 60ch }
.dim { color: var(--muted) }
.meta { font: 400 12.5px/1.6 var(--mono); color: var(--muted); overflow-wrap: anywhere }
.stack { display: grid; gap: 18px }
.stack-lg { display: grid; gap: 32px }

.panel { display: grid; gap: 16px; background: var(--surface); border: 1px solid var(--line); padding: 24px }
@media (max-width: 480px) { .panel { padding: 16px } }
.lbl { display: block; font: 500 14px/1.4 var(--sans); margin-bottom: 6px }
input[type=text], input[type=email], textarea, 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; }
textarea { resize: vertical; min-height: 84px }
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) }
.code-input { font: 600 28px/1 var(--mono) !important; letter-spacing: .3em; text-align: center; max-width: 240px }

button, .btn { font: 600 15px/1.4 var(--sans); border-radius: 6px; padding: 11px 18px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; border: 0; color: var(--ink) }
.primary { background: var(--accent); color: var(--accent-ink) }
.primary:hover { filter: brightness(.96) }
button:disabled { opacity: .55; cursor: not-allowed }
.ghost { background: transparent; border: 1px solid color-mix(in srgb, var(--ink) 25%, transparent) }
.ghost:hover { border-color: var(--ink) }
.danger { background: transparent; color: var(--danger); border: 1px solid color-mix(in srgb, var(--danger) 45%, transparent) }
.link { background: none; border: 0; padding: 0; min-height: 0; color: var(--accent-text); text-decoration: underline; font-weight: 400; font-size: 14px }
.sm { min-height: 34px; padding: 6px 12px; font-size: 14px }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px }
.spread { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px }
.err { margin: 0; color: var(--danger); font-weight: 500 }
.okmsg { margin: 0; color: var(--ok); font-weight: 500 }
.note { margin: 0; background: var(--band); color: var(--band-ink); padding: 14px 16px; font-size: 15px }
.note a { color: var(--accent) }

/* seznam obálek */
.list { display: grid; border: 1px solid var(--line); background: var(--surface) }
.item { display: grid; grid-template-columns: 1fr auto; gap: 6px 16px; padding: 16px 20px; border-top: 1px solid var(--line); text-decoration: none }
.item:first-child { border-top: 0 }
.item:hover { background: color-mix(in srgb, var(--accent) 5%, var(--surface)) }
.item .t { font: 700 17px/1.3 var(--display); letter-spacing: -.01em }
.item .s { font-size: 14px; color: var(--muted) }
.empty { padding: 28px 20px; color: var(--muted) }
.badge { display: inline-block; font: 500 12px/1 var(--sans); padding: 6px 8px; border: 1px solid var(--line); white-space: nowrap; align-self: start }
.badge.SENT { border-color: var(--accent); color: var(--accent-text) }
.badge.COMPLETED { background: var(--ink); color: var(--paper); border-color: var(--ink) }
.badge.DECLINED, .badge.CANCELLED, .badge.EXPIRED { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 45%, transparent) }

/* nahrání */
.drop { display: grid; place-items: center; gap: 10px; text-align: center; border: 2px dashed var(--line); background: var(--surface); padding: 40px 20px; cursor: pointer }
.drop.over, .drop:hover { border-color: var(--accent) }
.drop input { position: absolute; width: 1px; height: 1px; opacity: 0 }

/* editor */
.editor { display: grid; grid-template-columns: 340px 1fr; gap: 24px; align-items: start }
@media (max-width: 960px) { .editor { grid-template-columns: 1fr } }
.side { display: grid; gap: 16px; position: sticky; top: 16px }
@media (max-width: 960px) { .side { position: static } }
.signer { display: grid; gap: 8px; border: 1px solid var(--line); border-left: 6px solid var(--c, var(--accent)); padding: 12px; background: var(--surface); cursor: pointer }
.signer.active { outline: 2px solid var(--c, var(--accent)); outline-offset: -1px }
.signer .head { display: flex; align-items: center; justify-content: space-between; gap: 8px; font: 600 14px/1.3 var(--sans) }
.signer input { padding: 8px 10px; font-size: 15px }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; cursor: pointer }
.check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--accent); flex: none }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 6px; overflow: hidden }
.seg button { border-radius: 0; min-height: 38px; padding: 6px 14px; font-weight: 500; background: transparent }
.seg button[aria-pressed=true] { background: var(--ink); color: var(--paper) }

.pages { display: grid; gap: 18px; justify-items: center; min-width: 0 }
.page { position: relative; background: #fff; box-shadow: 0 0 0 1px var(--line); max-width: 100%; touch-action: pan-y }
.page canvas { display: block; width: 100%; height: auto }
.page .num { position: absolute; left: -1px; top: -1px; font: 400 11px/1 var(--mono); background: var(--band); color: var(--band-ink); padding: 4px 6px }
.layer { position: absolute; inset: 0 }
.editing .layer { cursor: crosshair }
.field { position: absolute; border: 2px solid var(--c, var(--accent)); background: color-mix(in srgb, var(--c, var(--accent)) 16%, transparent); display: flex; align-items: flex-end; font: 600 11px/1.2 var(--sans); color: var(--ink); padding: 2px 4px; cursor: move; touch-action: none; overflow: hidden }
.field .x { position: absolute; top: 1px; right: 1px; width: 22px; height: 22px; min-height: 0; padding: 0; font-size: 14px; background: var(--surface); border: 1px solid var(--line); border-radius: 3px; cursor: pointer }
.field .rs { position: absolute; right: 0; bottom: 0; width: 14px; height: 14px; background: var(--c, var(--accent)); cursor: nwse-resize }
.field.mine { cursor: pointer; animation: pulse 1.6s ease-in-out infinite }
.field.mine.done { animation: none; background: transparent; border-style: solid }
.field.mine img { position: absolute; inset: 2px; width: calc(100% - 4px); height: calc(100% - 4px); object-fit: contain }
@keyframes pulse { 50% { background: color-mix(in srgb, var(--accent) 32%, transparent) } }
@media (prefers-reduced-motion: reduce) { .field.mine { animation: none } }

/* detail */
.kv { display: grid; grid-template-columns: 170px 1fr; gap: 6px 16px; margin: 0; font-size: 15px }
.kv dt { color: var(--muted) }
.kv dd { margin: 0; overflow-wrap: anywhere }
@media (max-width: 560px) { .kv { grid-template-columns: 1fr } .kv dd { margin-bottom: 8px } }
.people { display: grid; gap: 0; border: 1px solid var(--line); background: var(--surface) }
.person { display: grid; grid-template-columns: 36px 1fr auto; gap: 4px 14px; align-items: start; padding: 14px 16px; border-top: 1px solid var(--line) }
.person:first-child { border-top: 0 }
.step { display: grid; place-items: center; width: 36px; height: 36px; background: var(--accent); color: var(--accent-ink); font: 800 15px/1 var(--display) }
.person.SIGNED .step { background: var(--ink); color: var(--paper) }
.timeline { margin: 0; padding: 0; list-style: none; font-size: 14px; display: grid; gap: 6px }
.timeline li { display: grid; grid-template-columns: 150px 1fr; gap: 12px }
.timeline time { font: 400 12.5px/1.8 var(--mono); color: var(--muted) }
@media (max-width: 560px) { .timeline li { grid-template-columns: 1fr; gap: 0 } }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start }
@media (max-width: 900px) { .two { grid-template-columns: 1fr } }

/* podpis */
.sigpad { display: grid; gap: 12px }
.sigpad canvas { width: 100%; height: 180px; background: var(--surface); border: 1px solid var(--line); border-bottom: 2px solid var(--ink); touch-action: none; cursor: crosshair; display: block }
.typed { font: 600 44px/1.2 "Caveat", cursive; padding: 6px 14px !important }
.sheet { position: fixed; inset: 0; background: color-mix(in srgb, #000 55%, transparent); display: grid; place-items: end center; z-index: 20; padding: 0 }
@media (min-width: 700px) { .sheet { place-items: center } }
.sheet .panel { width: min(640px, 100%); max-height: 100dvh; overflow: auto }
.bar { position: sticky; bottom: 0; z-index: 10; background: var(--band); color: var(--band-ink); padding: 12px 0; border-top: 3px solid var(--accent) }
.bar .wrap { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; justify-content: space-between }
.bar .ghost { color: var(--band-ink); border-color: color-mix(in srgb, var(--band-ink) 35%, transparent) }
.foot { padding: 18px 0 26px; border-top: 1px solid var(--line); font: 400 12px/1.6 var(--mono); color: var(--muted) }
.spinner { width: 18px; height: 18px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .8s linear infinite; display: inline-block }
@keyframes spin { to { transform: rotate(360deg) } }