/* www.clientai.eu — barvy, písmo a modul dlaždice podle manuálu značky (/brand/).
   Layout: úzký čtecí sloupec pro text, široký pro úvod; rozestupy v násobcích modulu (14 px). */
@import url("/brand/fonts/ubuntu.css");

:root {
  --navy: #0A4C80; --cyan: #00AFE5; --pale: #CFEFFA; --cyan-text: #00789F;
  --bg: #FFFFFF; --bg-soft: #F3F8FB; --surface: #FFFFFF; --fg: #0E2236; --muted: #52677A; --line: #DCE6EE;
  --accent: #0A4C80; --link: #00789F; --tile: #DDF1F9; --hero-tile: #E6F5FB; --todo: #FFF1C2; --todo-ink: #6B4A00;
  --on-accent: #FFFFFF; --code-bg: #0A4C80; --code-fg: #E9F6FC;
  --f: "Ubuntu", Arial, sans-serif; --f-mono: "Ubuntu Mono", ui-monospace, Menlo, monospace;
  --m: 14px; --wide: 1120px; --read: 720px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0B1620; --bg-soft: #0F1E2A; --surface: #112331; --fg: #E4EDF4; --muted: #95A8B8; --line: #213444;
    --accent: #7FD3F2; --link: #6FD0F3; --tile: #12293A; --hero-tile: #10273A; --todo: #4A3A0A; --todo-ink: #FFE08A;
    --on-accent: #0B1620; --code-bg: #08121A; --code-fg: #BFE9F8;
    color-scheme: dark;
  }
}

* { box-sizing: border-box }
html { -webkit-text-size-adjust: 100% }
body { margin: 0; background: var(--bg); color: var(--fg); font: 400 17px/1.6 var(--f) }
a { color: var(--link); text-underline-offset: 2px }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; border-radius: 2px }
img, svg { max-width: 100%; height: auto }
h1, h2, h3 { font-weight: 500; line-height: 1.15; text-wrap: balance; margin: 0 }
h1 { font-size: clamp(2.1rem, 5.2vw, 3.4rem); letter-spacing: -.015em }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); letter-spacing: -.01em }
h3 { font-size: 1.12rem }
p { margin: 0 }
code, .mono { font-family: var(--f-mono); font-size: .95em }
.wrap { max-width: var(--wide); margin: 0 auto; padding-inline: 20px }
.read { max-width: var(--read) }
.muted { color: var(--muted) }
.eyebrow { font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--cyan-text); font-weight: 500 }
@media (prefers-color-scheme: dark) { .eyebrow { color: var(--accent) } }
.todo { background: var(--todo); color: var(--todo-ink); padding: 0 .3em; border-radius: 3px; font-size: .95em }
.skip { position: absolute; left: -999px; top: 0 }
.skip:focus { left: 12px; top: 12px; background: var(--surface); padding: 8px 12px; z-index: 10 }

/* záhlaví */
.site-head { border-bottom: 1px solid var(--line); background: var(--bg) }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-block: 16px; flex-wrap: wrap }
.brand { display: block; line-height: 0 }
.brand img { width: 168px; height: auto }
.nav { display: flex; gap: 6px 22px; flex-wrap: wrap; align-items: center; font-size: .95rem }
.nav a { color: var(--fg); text-decoration: none }
.nav a:hover { color: var(--link) }
.nav .lang { font-family: var(--f-mono); border: 1px solid var(--line); border-radius: 3px; padding: 1px 7px; font-size: .85rem }

/* úvod */
.hero { position: relative; overflow: hidden; background: var(--bg-soft); border-bottom: 1px solid var(--line) }
.hero .tiles { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none }
.hero .tiles pattern rect { fill: var(--hero-tile) }
.hero .wrap { position: relative; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: calc(var(--m) * 4); align-items: center; padding-block: calc(var(--m) * 6) }
.hero-text { display: grid; gap: calc(var(--m) * 1.6) }
.hero-text p { font-size: 1.15rem; color: var(--muted); max-width: 34em }
.cta { display: flex; gap: 12px; flex-wrap: wrap }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 20px; border-radius: 4px; text-decoration: none; font-weight: 500; border: 1px solid transparent }
.btn-primary { background: var(--navy); color: #FFFFFF }
.btn-primary:hover { background: #083E69 }
.btn-ghost { border-color: var(--line); color: var(--fg); background: var(--surface) }
.btn-ghost:hover { border-color: var(--accent) }
@media (prefers-color-scheme: dark) { .btn-primary { background: var(--cyan); color: #0B1620 } .btn-primary:hover { background: #33C2EE } }

/* ukázka rozhovoru */
.chat { background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 18px; display: grid; gap: 12px; font-size: .95rem; box-shadow: 0 10px 30px -18px rgba(10, 76, 128, .45) }
.chat .tag { justify-self: start; font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted) }
.bubble { padding: 10px 14px; border-radius: 6px; max-width: 92% }
.bubble.me { justify-self: end; background: var(--navy); color: #FFFFFF; border-bottom-right-radius: 2px }
@media (prefers-color-scheme: dark) { .bubble.me { background: #134F7D } }
.bubble.ai { background: var(--bg-soft); border: 1px solid var(--line); border-bottom-left-radius: 2px; display: grid; gap: 8px }
.tool { display: inline-flex; align-items: center; gap: 8px; justify-self: start; font-family: var(--f-mono); font-size: .82rem; color: var(--muted); border: 1px dashed var(--line); border-radius: 3px; padding: 2px 8px }
.tool i { width: 9px; height: 9px; background: var(--cyan); display: inline-block }
.mini { width: 100%; border-collapse: collapse; font-size: .88rem }
.mini th, .mini td { text-align: left; padding: 4px 0; border-bottom: 1px solid var(--line) }
.mini th { font-weight: 500; color: var(--muted); font-size: .76rem; text-transform: uppercase; letter-spacing: .05em }
.mini td.n { text-align: right; font-variant-numeric: tabular-nums }
.mini tr:last-child td { border-bottom: 0 }

/* sekce */
.section { padding-block: calc(var(--m) * 6) }
.section.soft { background: var(--bg-soft); border-block: 1px solid var(--line) }
.section.soft .link span { background: var(--bg-soft) }
.section.soft .asks li { background: var(--surface) }
.section-head { display: grid; gap: 12px; margin-bottom: calc(var(--m) * 3); max-width: 46em }
.section-head p { color: var(--muted); font-size: 1.05rem }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: calc(var(--m) * 2); counter-reset: s }
.steps li { display: grid; gap: 10px; align-content: start; counter-increment: s; padding-top: 18px; border-top: 2px solid var(--navy) }
@media (prefers-color-scheme: dark) { .steps li { border-top-color: var(--cyan) } }
.steps li::before { content: counter(s); font: 500 .95rem var(--f-mono); color: var(--cyan-text) }
@media (prefers-color-scheme: dark) { .steps li::before { color: var(--accent) } }
.steps p { color: var(--muted) }

.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--m) }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 20px; display: grid; gap: 10px; align-content: start }
.card ul { margin: 0; padding-left: 1.1em; color: var(--muted); display: grid; gap: 4px }
.card.later { border-style: dashed; background: transparent }
.kind { display: flex; align-items: center; gap: 10px }
.kind .sq { width: 14px; height: 14px; background: var(--cyan) }
.card.later .kind .sq { background: var(--pale) }

.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 6px; overflow: hidden }
.fact { background: var(--surface); padding: 22px; display: grid; gap: 8px; align-content: start }
.fact p { color: var(--muted); font-size: .97rem }

.dev { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: calc(var(--m) * 3); align-items: start }
.dev-text { display: grid; gap: 14px }
.dev-text ul { margin: 0; padding-left: 1.1em; display: grid; gap: 6px; color: var(--muted) }
pre.code { margin: 0; background: var(--code-bg); color: var(--code-fg); border-radius: 6px; padding: 18px 20px; overflow-x: auto; font: 400 .9rem/1.6 var(--f-mono) }
pre.code .c { color: #7FB4D6 }

.contact { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: calc(var(--m) * 2); align-items: center; background: var(--navy); color: #FFFFFF; border-radius: 6px; padding: calc(var(--m) * 3) }
.contact-text { display: grid; gap: 10px }
.contact h2 { color: #FFFFFF }
.contact p { color: #CFE3F1 }
.contact .mail { font: 500 1.25rem var(--f); color: #FFFFFF }
.contact .mail a { color: #FFFFFF; text-decoration-color: rgba(255, 255, 255, .5) }
.contact .todo { color: var(--todo-ink) }
@media (prefers-color-scheme: dark) { .contact { background: #0E3556 } }

/* dokument (zásady) */
.doc { padding-block: calc(var(--m) * 4) calc(var(--m) * 6) }
.doc .wrap { display: grid; gap: calc(var(--m) * 2.5) }
.doc header { display: grid; gap: 12px; padding-bottom: calc(var(--m) * 2); border-bottom: 1px solid var(--line) }
.doc section { display: grid; gap: 12px; scroll-margin-top: 20px }
.doc h2 { font-size: 1.45rem; display: flex; gap: .55em; align-items: baseline }
.doc h2 .n { font: 400 .95rem var(--f-mono); color: var(--cyan-text); min-width: 1.6em }
@media (prefers-color-scheme: dark) { .doc h2 .n { color: var(--accent) } }
.doc ul { margin: 0; padding-left: 1.2em; display: grid; gap: 6px }
.doc .toc { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 6px; padding: 14px 18px }
.doc .toc ol { margin: 0; padding-left: 1.3em; columns: 2; column-gap: 28px; font-size: .95rem }
.doc .toc li { break-inside: avoid; padding: 2px 0 }
.data { display: grid; gap: 10px }
.datum { border: 1px solid var(--line); border-radius: 6px; background: var(--surface); padding: 14px 18px; display: grid; gap: 8px }
.datum h3 { font-size: 1.02rem }
.datum dl { margin: 0; display: grid; grid-template-columns: 9.5em minmax(0, 1fr); gap: 4px 16px; font-size: .95rem }
.datum dt { color: var(--muted) }
.datum dd { margin: 0 }
.note { border-left: 3px solid var(--cyan); background: var(--bg-soft); padding: 12px 16px; border-radius: 0 4px 4px 0 }

/* úvod: štítky a nástroje v ukázce */
.chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px }
.chips li { font-size: .85rem; padding: 3px 10px; border-radius: 3px; background: var(--surface); border: 1px solid var(--line); display: inline-flex; align-items: center; gap: 7px }
.chips li::before { content: ""; width: 8px; height: 8px; background: var(--cyan) }
.tools { display: flex; flex-wrap: wrap; gap: 6px }
.small { font-size: .85rem }
.aside { margin-top: calc(var(--m) * 2); color: var(--muted) }

/* schéma middleware */
.flow { display: grid; grid-template-columns: minmax(0, 1fr) 128px minmax(0, 1.15fr) 128px minmax(0, 1fr); align-items: stretch }
.node { border: 1px solid var(--line); border-radius: 6px; background: var(--surface); padding: 18px 20px; display: grid; gap: 8px; align-content: start }
.node .label { font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted) }
.node h3 { display: flex; align-items: center; gap: 10px; font-size: 1.3rem }
.node ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 5px; font-size: .95rem }
.node ul li { display: flex; gap: 8px; align-items: baseline }
.node ul li::before { content: ""; flex: none; width: 7px; height: 7px; background: var(--pale); transform: translateY(-1px) }
.node-core { background: var(--navy); border-color: var(--navy); color: #FFFFFF }
.node-core .label { color: #9FD0EC }
.node-core ul li::before { background: var(--cyan) }
.node-core h3 img { width: 40px; height: auto }
@media (prefers-color-scheme: dark) { .node-core { background: #0E3556; border-color: #1B527C } }
.link { display: grid; place-items: center; position: relative }
.link::before { content: ""; position: absolute; left: 6px; right: 6px; top: 50%; border-top: 2px dashed var(--cyan) }
.link span { position: relative; background: var(--bg); color: var(--muted); font: 400 .78rem var(--f-mono); padding: 2px 6px; text-align: center; white-space: nowrap }

/* role a příklady dotazů */
.roles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--m) }
.role { border-top: 2px solid var(--cyan); padding-top: 14px; display: grid; gap: 6px; align-content: start }
.asks { list-style: none; margin: 6px 0 0; padding: 0; display: grid; gap: 8px }
.asks li { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 6px 6px 6px 2px; padding: 9px 13px; font-size: .95rem }
.asks li::before { content: "„"; color: var(--muted) }
.asks li::after { content: "“"; color: var(--muted) }
.status { margin-left: auto; font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted) }

/* časté otázky */
.faq { display: grid; border-top: 1px solid var(--line) }
.faq details { border-bottom: 1px solid var(--line) }
.faq summary { cursor: pointer; padding: 16px 0; font-weight: 500; list-style: none; display: flex; justify-content: space-between; gap: 16px }
.faq summary::-webkit-details-marker { display: none }
.faq summary::after { content: "+"; font: 400 1.3rem/1 var(--f-mono); color: var(--cyan-text) }
.faq details[open] summary::after { content: "−" }
.faq details p { padding: 0 0 18px; color: var(--muted); max-width: 62ch }

/* GTM a lišta se souhlasem */
.gtm-ns { display: none; visibility: hidden }
.linklike { font: inherit; color: var(--muted); background: none; border: 0; padding: 0; text-decoration: underline; text-underline-offset: 2px; cursor: pointer }
.linklike:hover { color: var(--link) }
.consent { position: fixed; left: 16px; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom, 0px)); z-index: 20; max-width: 760px; margin: 0 auto;
  background: var(--surface); color: var(--fg); border: 1px solid var(--line); border-radius: 6px; padding: 16px 18px;
  display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; justify-content: space-between; box-shadow: 0 12px 32px -12px rgba(10, 76, 128, .35) }
.consent p { flex: 1 1 320px; font-size: .95rem; color: var(--muted) }
.consent-actions { display: flex; gap: 10px; flex-wrap: wrap }
.consent .btn { padding: 8px 16px; cursor: pointer; font: inherit; font-weight: 500 }

/* zápatí */
.site-foot { border-top: 1px solid var(--line); padding-block: calc(var(--m) * 3); font-size: .9rem; color: var(--muted) }
.site-foot .wrap { display: grid; gap: 14px }
.site-foot .row { display: flex; flex-wrap: wrap; gap: 8px 24px; align-items: center }
.site-foot a { color: var(--muted) }
.site-foot a:hover { color: var(--link) }

@media (max-width: 900px) {
  .hero .wrap, .dev { grid-template-columns: minmax(0, 1fr) }
  .flow { grid-template-columns: minmax(0, 1fr) }
  .link { height: 54px }
  .link::before { left: 50%; right: auto; top: 6px; bottom: 6px; border-top: 0; border-left: 2px dashed var(--cyan) }
  .roles { grid-template-columns: minmax(0, 1fr) }
  .hero .wrap { padding-block: calc(var(--m) * 4); gap: calc(var(--m) * 3) }
  .steps, .cards, .facts { grid-template-columns: minmax(0, 1fr) }
  .contact { grid-template-columns: minmax(0, 1fr) }
}
@media (min-width: 640px) and (max-width: 900px) {
  .cards, .facts { grid-template-columns: repeat(2, minmax(0, 1fr)) }
}
@media (max-width: 640px) {
  body { font-size: 16px }
  .wrap { padding-inline: 16px }
  .section { padding-block: calc(var(--m) * 4) }
  .doc .toc ol { columns: 1 }
  .datum dl { grid-template-columns: minmax(0, 1fr); gap: 0 }
  .datum dd { margin-bottom: 6px }
  .brand img { width: 140px }
}
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth } }