/* Osobní stránka Roman AI — postavená podle Romanova návrhu.

   Grafika (úvodní vizuál, obrázky služeb, ukázky projektů) je vyříznutá
   přímo z návrhu, ne překreslená. Kreslené náhražky vypadaly amatérsky
   a návrh je hotový — nemá smysl ho napodobovat, když ho lze použít.

   Stránka stojí samostatně, nesdílí styly s webem náhradních dílů. */

:root {
  --cerna: #08080a;
  --panel: #0e0e11;
  --panel2: #121216;
  --linka: #232329;
  --cervena: #e5391c;
  --cervena-tmava: #c02a10;
  --text: #f4f4f5;
  --seda: #9a9aa2;
  --shell: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 86% 8%, rgba(229, 57, 28, .055), transparent 25rem),
    radial-gradient(circle at 10% 48%, rgba(229, 57, 28, .025), transparent 30rem),
    var(--cerna);
  color: var(--text);
  font: 16px/1.6 "Segoe UI", Inter, Arial, Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
.uvod-mrizka > *, .karty > *, .ukazky > *, .paticka-mrizka > * { min-width: 0; }
.shell { width: min(calc(100% - 48px), var(--shell)); margin-inline: auto; }

/* ---------- hlavička ---------- */

.hlavicka {
  position: sticky; top: 0; z-index: 30;
  padding-top: 16px;
  background: linear-gradient(to bottom, rgba(8, 8, 10, .97), rgba(8, 8, 10, .82), transparent);
  backdrop-filter: blur(12px);
}
.hlavicka-vnitrek {
  display: flex; align-items: center; gap: clamp(24px, 3vw, 44px); min-height: 70px;
  padding: 0 22px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 12px;
  background: rgba(10, 10, 12, .78);
  box-shadow: 0 16px 45px rgba(0, 0, 0, .28), inset 0 1px 0 rgba(255,255,255,.025);
}
.znacka img { height: 48px; width: auto; }
.menu { display: flex; gap: 30px; }
.menu a {
  position: relative; color: #e8e8ea; text-decoration: none;
  font-size: 15px; font-weight: 600; padding: 6px 0; white-space: nowrap;
}
.menu a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--cervena); transform: scaleX(0); transition: transform .18s ease;
}
.menu a:hover::after { transform: scaleX(1); }

.cudlik {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  padding: 15px 26px; border-radius: 7px; border: 1px solid transparent;
  font-size: 15px; font-weight: 700; text-decoration: none; cursor: pointer;
  transition: background-color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.cudlik-cerveny {
  background: linear-gradient(135deg, #f03a1e, #d72d14); color: #fff;
  box-shadow: 0 10px 28px rgba(229,57,28,.17), inset 0 1px 0 rgba(255,255,255,.16);
}
.cudlik-cerveny:hover { background: linear-gradient(135deg, #ff4727, #d92f15); transform: translateY(-2px); box-shadow: 0 14px 34px rgba(229,57,28,.3); }
.cudlik-obrys { border-color: #3d3d45; color: var(--text); }
.cudlik-obrys:hover { border-color: var(--cervena); transform: translateY(-2px); background: rgba(229,57,28,.055); }
.hlavicka .cudlik { margin-left: auto; padding: 12px 20px; border: 1px solid var(--cervena); }

/* ---------- úvod ---------- */

.uvod { padding: 54px 0 0; }
.uvod-mrizka { display: grid; grid-template-columns: .91fr 1.09fr; gap: clamp(38px, 5vw, 76px); align-items: center; }
.nadhlavi {
  margin: 0 0 18px; color: var(--cervena);
  font-size: 13px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase;
}
.uvod h1 {
  margin: 0 0 22px; font-weight: 800; letter-spacing: -.025em;
  font-size: clamp(40px, 5.3vw, 62px); line-height: 1.02;
}
.uvod h1 em { color: var(--cervena); font-style: normal; }
.uvod-text { margin: 0 0 30px; color: #c9c9d0; font-size: 17px; line-height: 1.62; max-width: 30em; }
.uvod-cudliky { display: flex; gap: 16px; flex-wrap: wrap; }
.reference { display: flex; align-items: center; gap: 14px; margin-top: 32px; }
.reference img { height: 34px; width: auto; }
.reference-hvezdy { color: var(--cervena); letter-spacing: 2px; font-size: 14px; }
.reference small { display: block; color: #b6b6bd; font-size: 13.5px; margin-top: 2px; }
.uvod-obrazek { position: relative; isolation: isolate; }
.uvod-obrazek::before {
  content: ""; position: absolute; inset: 12% -5% -8% 12%; z-index: -1;
  background: radial-gradient(circle at 67% 52%, rgba(229,57,28,.22), transparent 58%);
  filter: blur(26px); opacity: .9;
}
.uvod-obrazek img {
  width: 100%; border-radius: 12px;
  filter: saturate(1.05) contrast(1.035);
  box-shadow: 0 30px 70px rgba(0,0,0,.42);
}

/* ---------- pruh s přednostmi ---------- */

.prednosti {
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: var(--panel); border: 1px solid var(--linka); border-radius: 12px;
  margin: 40px 0 72px; overflow: hidden;
  box-shadow: 0 24px 70px rgba(0,0,0,.3), inset 0 1px 0 rgba(255,255,255,.025);
}
.prednosti article { display: flex; align-items: center; gap: 18px; padding: 23px 26px; border-right: 1px solid var(--linka); }
.prednosti article:last-child { border-right: 0; }
.prednosti strong { display: block; font-size: 16px; margin-bottom: 5px; }
.prednosti p { margin: 0; color: var(--seda); font-size: 13.5px; line-height: 1.5; }
.ikona { flex: none; color: var(--cervena); }
.ikona svg { width: 32px; height: 32px; }

/* ---------- sekce ---------- */

section { padding-bottom: 72px; }
.stitek {
  margin: 0 0 10px; text-align: center; color: var(--cervena);
  font-size: 12px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase;
}
h2 { margin: 0 0 38px; text-align: center; font-size: clamp(28px, 3.5vw, 40px); font-weight: 800; letter-spacing: -.01em; }

/* ---------- služby ---------- */

.karty { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.karta {
  position: relative; overflow: hidden;
  background: linear-gradient(155deg, #121216, #0d0d10); border: 1px solid #29292f; border-radius: 12px;
  padding: 14px 14px 22px; display: flex; flex-direction: column;
  box-shadow: 0 18px 50px rgba(0,0,0,.22), inset 0 1px 0 rgba(255,255,255,.025);
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.karta::after { content: ""; position: absolute; left: 12%; right: 12%; top: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(229,57,28,.55), transparent); opacity: 0; transition: opacity .2s ease; }
.karta:hover { border-color: rgba(229,57,28,.6); transform: translateY(-5px); box-shadow: 0 24px 60px rgba(0,0,0,.36), 0 0 30px rgba(229,57,28,.06); }
.karta:hover::after { opacity: 1; }
.karta > img { width: 100%; min-height: 122px; object-fit: cover; border-radius: 8px; margin-bottom: 19px; }
.karta h3 { margin: 0 0 10px; font-size: 19px; font-weight: 800; padding-inline: 6px; }
.karta p { margin: 0 0 18px; color: var(--seda); font-size: 14px; line-height: 1.6; padding-inline: 6px; }
.karta a {
  margin-top: auto; padding-inline: 6px;
  color: var(--cervena); font-weight: 700; font-size: 14px; text-decoration: none;
}
.karta a:hover { text-decoration: underline; }

/* ---------- ukázky ---------- */

.ukazky { display: grid; grid-template-columns: 1fr 1.18fr 1.12fr; gap: 22px; align-items: stretch; }
.ukazky figure {
  margin: 0; background: var(--panel); border: 1px solid var(--linka);
  border-radius: 12px; overflow: hidden;
  box-shadow: 0 18px 48px rgba(0,0,0,.28), inset 0 1px 0 rgba(255,255,255,.025);
  transition: border-color .2s ease, transform .2s ease;
}
.ukazky figure:hover { border-color: rgba(229,57,28,.5); transform: translateY(-3px); }
.ukazky img { width: 100%; }
.stred { text-align: center; margin-top: 28px; }

/* ---------- postup ---------- */

.postup {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  padding: 10px 12px;
  background: linear-gradient(180deg, rgba(19,19,23,.92), rgba(11,11,14,.94));
  border: 1px solid #29292f; border-radius: 12px;
  box-shadow: 0 18px 55px rgba(0,0,0,.25), inset 0 1px 0 rgba(255,255,255,.025);
}
.postup article { display: flex; gap: 16px; padding: 22px 20px; position: relative; }
/* Čárkovaná spojnice mezi kroky — v návrhu vede od kolečka ke kolečku. */
.postup article::after {
  content: ""; position: absolute; top: 46px; right: -2px; width: 100%;
  border-top: 1px dashed var(--cervena); opacity: .45; z-index: 0;
}
.postup article:last-child::after { display: none; }
.postup em {
  position: relative; z-index: 1; flex: none;
  width: 44px; height: 44px; border-radius: 50%;
  border: 2px solid var(--cervena); color: var(--cervena); background: var(--cerna);
  display: grid; place-items: center; font-style: normal; font-weight: 800; font-size: 17px;
}
.postup strong { display: block; margin-bottom: 6px; font-size: 16px; }
.postup p { margin: 0; color: var(--seda); font-size: 13.5px; line-height: 1.55; }

/* ---------- výzva ---------- */

.vyzva {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: 1fr 1fr auto; gap: 40px; align-items: center;
  padding: 40px 46px; border-radius: 12px; border: 1px solid rgba(229,57,28,.65);
  background:
    linear-gradient(90deg, rgba(14,14,17,.98) 0%, rgba(12,12,15,.94) 42%, rgba(27,5,7,.62) 100%),
    url("assets/romanai/vyzva-zare.png") right center / 54% 100% no-repeat;
  box-shadow: 0 22px 65px rgba(0,0,0,.3), 0 0 45px rgba(229,57,28,.05), inset 0 1px 0 rgba(255,255,255,.03);
}
.vyzva::before {
  content: ""; position: absolute; right: -6%; top: -30%; width: 62%; height: 160%;
  background: radial-gradient(ellipse at center, rgba(229, 57, 28, .2), transparent 64%);
  pointer-events: none;
}
.vyzva > * { position: relative; z-index: 1; }
.vyzva h2 { margin: 0; text-align: left; font-size: clamp(26px, 2.8vw, 34px); line-height: 1.15; }
.vyzva p { margin: 0; color: #c9c9d0; font-size: 15.5px; }

/* ---------- patička ---------- */

.paticka { padding: 0 0 22px; }
.paticka > .shell {
  padding: 38px 40px 18px;
  border: 1px solid #29292f; border-radius: 12px;
  background: linear-gradient(145deg, rgba(17,17,20,.96), rgba(10,10,12,.98));
  box-shadow: 0 24px 70px rgba(0,0,0,.3), inset 0 1px 0 rgba(255,255,255,.025);
}
.paticka-mrizka { display: grid; grid-template-columns: 1.5fr 1fr 1.15fr 1.25fr; gap: 36px; }
.paticka-znacka img { height: 46px; width: auto; margin-bottom: 16px; }
.paticka-znacka p { margin: 0; color: var(--seda); font-size: 14px; line-height: 1.6; max-width: 22em; }
.paticka h5 { margin: 0 0 16px; font-size: 15px; font-weight: 800; }
.paticka ul { list-style: none; margin: 0; padding: 0; }
.paticka li { margin-bottom: 10px; }
.paticka a { color: var(--seda); text-decoration: none; font-size: 14px; }
.paticka a:hover { color: var(--cervena); }
.kontakt-radek { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; color: var(--seda); font-size: 14px; }
.kontakt-radek svg { width: 19px; height: 19px; color: var(--cervena); flex: none; }
.paticka-spodek {
  margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--linka);
  display: flex; justify-content: space-between; gap: 20px; color: #6c6c74; font-size: 12.5px;
}

/* ---------- užší displeje ---------- */

@media (max-width: 1050px) {
  .menu { display: none; }
  .uvod-mrizka { grid-template-columns: 1fr; gap: 34px; }
  .prednosti, .karty, .postup { grid-template-columns: 1fr 1fr; }
  .prednosti article:nth-child(2) { border-right: 0; }
  .postup article::after { display: none; }
  .ukazky { grid-template-columns: 1fr; }
  .vyzva { grid-template-columns: 1fr; }
  .paticka-mrizka { grid-template-columns: 1fr 1fr; }
  .hlavicka-vnitrek { min-height: 64px; }
}
@media (max-width: 640px) {
  .shell { width: min(calc(100% - 28px), var(--shell)); }
  .hlavicka { padding-top: 8px; }
  .hlavicka-vnitrek { padding: 0 14px; gap: 12px; }
  .znacka img { height: 38px; }
  .hlavicka .cudlik { display: none; }
  .uvod-text br { display: none; }
  .uvod-cudliky { display: grid; grid-template-columns: 1fr; }
  .uvod-cudliky .cudlik { width: 100%; }
  .prednosti, .karty, .postup, .paticka-mrizka { grid-template-columns: 1fr; }
  .prednosti article { border-right: 0; border-bottom: 1px solid var(--linka); }
  .uvod { padding-top: 36px; }
  .vyzva { padding: 30px 24px; }
  .paticka > .shell { padding: 30px 24px 18px; }
  .paticka-spodek { flex-direction: column; }
}