/* Prezentacni web Red Dwarf (admin/public/web), red-dwarf#1722.
   Design podle businessascode.ai (rozhodnuti Honzy 30. 9. 2026): cerna, smaragdova #04a875,
   kremova lista #f4f0e9, bila plocha, bezpatkove pismo. Pismo TikTok Sans lokalne (SIL OFL 1.1, text licence v fonts/OFL.txt);
   nadpisove Renesance Sans je vlastni pismo BaC - bez overene licence se nekopiruje.
   Zadny externi zdroj: CSP default-src 'self'. */
@font-face { font-family: 'TikTok Sans'; font-style: normal; font-weight: 300 900; font-display: swap; src: url('/web/fonts/tiktok-sans-latin-ext.woff2') format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: 'TikTok Sans'; font-style: normal; font-weight: 300 900; font-display: swap; src: url('/web/fonts/tiktok-sans-latin.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

:root {
  --black: #000000; --ink: #0b0b0b; --ink-2: #374151; --muted: #6b7280; --gray: #9ca3af;
  --white: #ffffff; --cream: #f4f0e9; --cream-2: #ebe6dc; --line: #e5e7eb; --line-dark: #262626;
  --green: #04a875; --green-dark: #038a60; --green-soft: rgba(4, 168, 117, .1); --green-line: rgba(4, 168, 117, .3);
  --radius: 10px; color-scheme: light;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--white); color: var(--ink); font-family: 'TikTok Sans', system-ui, -apple-system, 'Segoe UI', Arial, sans-serif; font-size: 17px; line-height: 1.6; }
h1, h2, h3 { font-weight: 800; letter-spacing: -0.02em; line-height: 1.08; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(2.2rem, 4.6vw, 3.7rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.7rem); }
h3 { font-size: 1.2rem; line-height: 1.25; font-weight: 700; }
p { margin: 0; }
a { color: var(--green-dark); }
.dot { color: var(--green); }
.wrap { max-width: 1216px; margin: 0 auto; padding-inline: 24px; }

/* lista */
header.nav { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: var(--cream); border-bottom: 1px solid var(--cream-2); }
.nav-in { display: flex; align-items: center; gap: 20px; min-height: 64px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--black); font-weight: 800; font-size: 1.2rem; letter-spacing: -0.01em; }
.logo small { display: block; font-size: 11.5px; font-weight: 500; color: var(--muted); letter-spacing: 0; }
.nav-links { display: flex; gap: 18px; flex-wrap: wrap; font-size: 15px; }
.nav-in .btn { padding: 9px 14px; font-size: 14.5px; }
/* Dvojice tlacitek v hlavicce (Administrace + Do pracovny) se zalamuje jen CELA - nikdy
   nespadne samotne "Do pracovny" pod logo (revize B #1749). Logo se nezalamuje. */
.nav-cta { display: flex; gap: 8px; flex-wrap: nowrap; white-space: nowrap; flex-shrink: 0; }
.logo { flex-shrink: 0; }
.nav-links a { color: #4b5563; text-decoration: none; }
.nav-links a:hover { color: var(--black); }
.sp { flex: 1; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 6px; padding: 11px 20px; font: inherit; font-weight: 700; font-size: 15px; text-decoration: none; border: 1.5px solid var(--black); color: var(--black); background: transparent; cursor: pointer; }
.btn.primary { background: var(--green); border-color: var(--green); color: var(--white); box-shadow: 0 1px 2px rgba(0,0,0,.1); }
.btn.primary:hover { background: var(--green-dark); border-color: var(--green-dark); }
.btn.ghost-dark { border-color: #3f3f46; color: var(--white); }
.btn.ghost-dark:hover { border-color: var(--white); }
.btn.lg { padding: 16px 30px; font-size: 17px; }
/* Sekundarni tlacitko v hlavicce (Administrace vedle Do pracovny, #1722 A1). */
.btn.quiet { border-color: #d1d5db; color: #374151; }
.btn.quiet:hover { border-color: var(--black); color: var(--black); }
.admin-entry { margin-top: 18px; }
.admin-entry + p { margin-top: 14px; }

/* schema architektury */
.diagram { overflow-x: auto; background: var(--white); border: 1px solid var(--cream-2); border-radius: 14px; padding: 18px; }
.diagram svg { display: block; width: 100%; min-width: 760px; height: auto; }

/* sekce */
section { padding-block: 88px; }
.dark { background: var(--black); color: var(--white); }
.dark .lead, .dark p { color: #d1d5db; }
.cream { background: var(--cream); }
.eyebrow { font-size: 13.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--green); font-weight: 700; margin-bottom: 14px; }
.lead { font-size: 1.2rem; color: var(--ink-2); max-width: 60ch; }
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 48px; align-items: center; padding-block: 96px 88px; }
.hero h1 .g { color: var(--green); display: block; }
.hero .lead { margin-top: 26px; font-size: 1.3rem; }
.hero .cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.art { width: 100%; max-width: 560px; justify-self: end; }
.art svg { width: 100%; height: auto; display: block; }
.two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: start; }
.grid3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 20px; }
.grid5 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); gap: 16px; }
.card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.card p { color: var(--ink-2); font-size: 16px; }
.card .ico { width: 42px; height: 42px; }
.cream .card { border-color: var(--cream-2); }
.dark .card { background: #0d0d0d; border-color: var(--line-dark); }
.dark .card p { color: #a1a1aa; }
.layer { border-top: 3px solid var(--green); }
.layer .n { font-size: 13px; color: var(--green); font-weight: 700; letter-spacing: .06em; }
.eq { font-size: clamp(1.4rem, 3vw, 2.1rem); font-weight: 800; letter-spacing: -0.01em; margin-top: 18px; }
.eq span { color: var(--green); }
.table { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); margin-top: 28px; }
table { border-collapse: collapse; width: 100%; min-width: 640px; font-size: 15.5px; }
th, td { text-align: left; padding: 14px 18px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); background: #fafafa; }
tr:last-child td { border-bottom: 0; }
td b { color: var(--black); }
tr.hl td { background: var(--green-soft); }
.steps { display: grid; gap: 14px; counter-reset: s; }
.step { display: grid; grid-template-columns: 46px minmax(0, 1fr); gap: 14px; align-items: start; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; background: var(--white); }
.step::before { counter-increment: s; content: counter(s); font-weight: 800; font-size: 1.6rem; color: var(--green); line-height: 1; }
.step p { color: var(--ink-2); font-size: 15.5px; }
.principles { list-style: none; padding: 0; margin: 28px 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 330px), 1fr)); gap: 12px 28px; counter-reset: p; }
.principles li { display: grid; grid-template-columns: 38px minmax(0, 1fr); gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line-dark); }
.principles li::before { counter-increment: p; content: counter(p, decimal-leading-zero); color: var(--green); font-weight: 800; }
.principles b { color: var(--white); display: block; }
.principles span { color: #a1a1aa; font-size: 15px; }
.check { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.check li { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 12px; }
.check li::before { content: ""; width: 20px; height: 20px; margin-top: 3px; border-radius: 50%; background: var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center / 12px no-repeat; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font-size: 13px; padding: 5px 12px; border-radius: 999px; background: rgba(4,168,117,.14); color: #34d399; border: 1px solid rgba(4,168,117,.35); font-weight: 500; }
.mock { background: #0d0d0d; border: 1px solid var(--line-dark); border-radius: 14px; overflow: hidden; color: var(--white); }
.mock-top { display: flex; gap: 6px; padding: 10px 12px; border-bottom: 1px solid var(--line-dark); }
.mock-top i { width: 10px; height: 10px; border-radius: 50%; background: #27272a; }
.mock-body { padding: 18px; display: grid; gap: 10px; font-size: 14.5px; }
.door { display: grid; grid-template-columns: 38px minmax(0, 1fr) auto; gap: 12px; align-items: center; border: 1px solid var(--line-dark); border-radius: 10px; padding: 12px; }
.door.sel { border-color: var(--green); box-shadow: 0 0 0 3px rgba(4,168,117,.2); }
.door small { color: #a1a1aa; display: block; font-size: 12.5px; }
.pill { font-size: 12px; padding: 2px 9px; border-radius: 999px; background: var(--green); color: var(--white); font-weight: 600; }
.quote { font-size: clamp(1.4rem, 2.6vw, 2rem); font-weight: 700; line-height: 1.3; letter-spacing: -0.01em; }
.cta-band { background: var(--green); color: var(--white); }
.cta-band .lead { color: #ecfdf5; }
.cta-band .btn { border-color: var(--white); color: var(--white); }
.cta-band .btn.solid { background: var(--black); border-color: var(--black); }
.small { font-size: 14px; color: var(--muted); }
.dark .small { color: #a1a1aa; }
.rel { display: grid; gap: 14px; }
.ver { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 20px; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.ver .when { color: var(--muted); font-size: 14px; }
.ver ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.ver li { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 10px; font-size: 16px; }
.tag { font-size: 12px; font-weight: 700; text-align: center; border-radius: 4px; padding: 2px 0; height: fit-content; }
.tag.new { background: var(--green-soft); color: var(--green-dark); }
.tag.fix { background: #f3f4f6; color: var(--ink-2); }
.tag.sec { background: #ede9fe; color: #5b21b6; }
.tag.change { background: #e0f2fe; color: #075985; }
.rel .empty { color: var(--muted); font-size: 16px; margin: 0; padding: 20px 0; }
.subhead { padding-block: 72px 24px; }
footer { background: var(--black); color: var(--gray); padding-block: 56px 36px; font-size: 15px; }
footer h3 { color: var(--white); font-size: 1rem; margin-bottom: 12px; }
footer a { color: #d1d5db; text-decoration: none; }
footer a:hover { color: var(--green); }
footer .cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); gap: 32px; }
footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.fine { margin-top: 40px; border-top: 1px solid var(--line-dark); padding-top: 20px; display: flex; gap: 16px; flex-wrap: wrap; justify-content: space-between; font-size: 13.5px; }
@media (max-width: 900px) {
  .hero, .two { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .art { justify-self: center; max-width: 420px; }
  .ver { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  section { padding-block: 60px; }
  .hero { padding-block: 56px; }
}
/* Odkazy se vedle loga a dvou tlacitek vejdou jen na sirokem displeji (cca 1130 px obsahu);
   uz od 1180 px okna jdou na vlastni radek pod logo, tlacitka zustavaji vpravo nahore. */
@media (max-width: 1180px) {
  .nav-links { order: 3; width: 100%; padding-bottom: 10px; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .nav-links { order: 3; width: 100%; gap: 16px; overflow-x: auto; padding-bottom: 10px; flex-wrap: nowrap; }
  .nav-links a { white-space: nowrap; }
  .logo small { display: none; }
  .nav-in { gap: 10px; }
  .nav-in .btn { padding: 8px 12px; font-size: 14px; }
  .wrap { padding-inline: 16px; }
}
/* Telefon: dve tlacitka se vedle loga s nazvem nevejdou. Nazev zmizi, logo (s aria-label)
   zustava; pod 340 px se jeste zuzi tlacitka (merene sirky v PR #1749). */
@media (max-width: 460px) {
  .logo span { display: none; }
  .nav-in .btn { padding: 8px 10px; font-size: 13.5px; }
  .nav-cta { gap: 6px; }
}
@media (max-width: 340px) {
  .nav-in .btn { padding: 7px 8px; font-size: 13px; }
}