/* ==========================================================================
   Klimatizace a tepelná čerpadla — Jakub Špiláček, Šenov
   Jediný stylopis pro celý web. Žádné externí fonty ani knihovny.
   ========================================================================== */

:root {
  /* Barvy */
  --modra-tmava: #0b3a56;
  --modra: #1273a8;
  --modra-svetla: #e6f2f9;
  --modra-linka: #c5e0ee;
  --teplá: #d9782f;      /* akcent pro topení */
  --teplá-svetla: #fdf1e7;

  --text: #16242e;
  --text-tlumeny: #566a77;
  --pozadi: #ffffff;
  --pozadi-alt: #f4f8fa;
  --linka: #dde6ec;

  --zelena: #1f7a4d;

  /* Rozměry */
  --sirka: 1120px;
  --radius: 10px;
  --stin: 0 1px 2px rgba(11, 58, 86, .06), 0 4px 16px rgba(11, 58, 86, .07);
  --stin-vyssi: 0 2px 6px rgba(11, 58, 86, .08), 0 12px 32px rgba(11, 58, 86, .12);

  /* Písmo — systémové, nulová zátěž na načítání */
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* --------------------------------------------------------------- základ */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--pozadi);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  line-height: 1.2;
  margin: 0 0 .5em;
  color: var(--modra-tmava);
  font-weight: 700;
  letter-spacing: -.015em;
}

h1 { font-size: clamp(1.9rem, 5vw, 2.9rem); }
h2 { font-size: clamp(1.5rem, 3.6vw, 2.1rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

a { color: var(--modra); }
a:hover { color: var(--modra-tmava); }

img { max-width: 100%; height: auto; display: block; }

ul, ol { margin: 0 0 1rem; padding-left: 1.3em; }
li { margin-bottom: .4em; }

strong { font-weight: 650; }

:focus-visible {
  outline: 3px solid var(--teplá);
  outline-offset: 2px;
  border-radius: 3px;
}

.obal {
  max-width: var(--sirka);
  margin: 0 auto;
  padding: 0 20px;
}

.uzsi { max-width: 760px; }

/* Skrytý text pro čtečky a SEO */
.jen-pro-ctecky {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* --------------------------------------------------------------- hlavička */

.hlavicka {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--linka);
}

.hlavicka-obsah {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--modra-tmava);
  text-decoration: none;
  line-height: 1.15;
  flex-shrink: 0;
}

.logo:hover { color: var(--modra); }

.logo-znak {
  width: 34px; height: 34px;
  flex-shrink: 0;
}

.logo-text small {
  display: block;
  font-size: .68rem;
  font-weight: 500;
  color: var(--text-tlumeny);
  letter-spacing: .02em;
}

.hlavicka-telefon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--zelena);
  color: #fff;
  text-decoration: none;
  font-weight: 650;
  padding: 9px 16px;
  border-radius: 999px;
  white-space: nowrap;
  font-size: .95rem;
}

.hlavicka-telefon:hover { background: #18613d; color: #fff; }
.hlavicka-telefon svg { width: 16px; height: 16px; flex-shrink: 0; }

/* --------------------------------------------------------------- navigace */

.navigace {
  border-bottom: 1px solid var(--linka);
  background: var(--pozadi);
}

.navigace ul {
  display: flex;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.navigace ul::-webkit-scrollbar { display: none; }

.navigace a {
  display: block;
  padding: 12px 14px;
  text-decoration: none;
  color: var(--text-tlumeny);
  font-weight: 550;
  font-size: .95rem;
  white-space: nowrap;
  border-bottom: 3px solid transparent;
}

.navigace a:hover { color: var(--modra-tmava); background: var(--pozadi-alt); }

.navigace a[aria-current="page"] {
  color: var(--modra-tmava);
  border-bottom-color: var(--modra);
}

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

.sekce { padding: 56px 0; }
.sekce-alt { background: var(--pozadi-alt); }
.sekce-uzka { padding: 40px 0; }

.sekce-hlava { max-width: 680px; margin-bottom: 32px; }
.sekce-hlava p { color: var(--text-tlumeny); font-size: 1.05rem; }

/* --------------------------------------------------------------- hero */

.hero {
  background: linear-gradient(160deg, var(--modra-tmava) 0%, #124e73 55%, var(--modra) 100%);
  color: #fff;
  padding: 64px 0 72px;
}

.hero h1 { color: #fff; margin-bottom: .35em; }

.hero-perex {
  font-size: 1.15rem;
  color: #d6eaf5;
  max-width: 620px;
  margin-bottom: 28px;
}

.hero-odznaky {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
}

.odznak {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .22);
  padding: 6px 13px;
  border-radius: 999px;
  font-size: .87rem;
  font-weight: 550;
}

.hero-akce { display: flex; flex-wrap: wrap; gap: 12px; }

/* --------------------------------------------------------------- tlačítka */

.tlacitko {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 26px;
  border-radius: var(--radius);
  font-weight: 650;
  font-size: 1.02rem;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .12s ease, background-color .15s ease;
}

.tlacitko:active { transform: translateY(1px); }
.tlacitko svg { width: 18px; height: 18px; flex-shrink: 0; }

.tlacitko-hlavni { background: var(--zelena); color: #fff; }
.tlacitko-hlavni:hover { background: #18613d; color: #fff; }

.tlacitko-vedlejsi {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, .5);
}
.tlacitko-vedlejsi:hover { background: rgba(255, 255, 255, .12); color: #fff; }

.tlacitko-modry { background: var(--modra); color: #fff; }
.tlacitko-modry:hover { background: var(--modra-tmava); color: #fff; }

.tlacitko-obrys {
  background: #fff;
  color: var(--modra-tmava);
  border-color: var(--modra-linka);
}
.tlacitko-obrys:hover { background: var(--modra-svetla); color: var(--modra-tmava); }

/* --------------------------------------------------------------- mřížky */

.mrizka {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.mrizka-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.karta {
  background: #fff;
  border: 1px solid var(--linka);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--stin);
}

.karta h3 { margin-bottom: .4em; }
.karta p { color: var(--text-tlumeny); }

.karta-ikona {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--modra-svetla);
  color: var(--modra);
  display: grid;
  place-items: center;
  margin-bottom: 14px;
}

.karta-ikona svg { width: 24px; height: 24px; }
.karta-ikona.teple { background: var(--teplá-svetla); color: var(--teplá); }

/* --------------------------------------------------------------- kroky */

.kroky {
  list-style: none;
  counter-reset: krok;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 18px;
}

.kroky li {
  counter-increment: krok;
  position: relative;
  padding-left: 56px;
  margin: 0;
}

.kroky li::before {
  content: counter(krok);
  position: absolute;
  left: 0; top: 0;
  width: 38px; height: 38px;
  background: var(--modra);
  color: #fff;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 1rem;
}

.kroky h3 { margin-bottom: .15em; font-size: 1.08rem; }
.kroky p { color: var(--text-tlumeny); margin: 0; }

/* --------------------------------------------------------------- seznam s fajfkami */

.fajfky { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }

.fajfky li {
  position: relative;
  padding-left: 30px;
  margin: 0;
}

.fajfky li::before {
  content: "";
  position: absolute;
  left: 0; top: .45em;
  width: 18px; height: 18px;
  background: var(--zelena);
  border-radius: 50%;
  /* fajfka jako maska, aby nebyl potřeba obrázek */
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 6 9 17l-5-5' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 14px no-repeat,
           linear-gradient(#000, #000);
  -webkit-mask-composite: xor;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 6 9 17l-5-5' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 14px no-repeat,
        linear-gradient(#000, #000);
  mask-composite: exclude;
}

.krizky li::before { background: #b23b3b; }

/* --------------------------------------------------------------- ceník */

.cena-karta {
  background: #fff;
  border: 1px solid var(--linka);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--stin);
  display: flex;
  flex-direction: column;
}

.cena-karta.zvyrazneno {
  border-color: var(--modra);
  border-width: 2px;
  box-shadow: var(--stin-vyssi);
}

.cena-stitek {
  align-self: flex-start;
  background: var(--modra);
  color: #fff;
  font-size: .78rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: 4px 11px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.cena-castka {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--modra-tmava);
  line-height: 1.1;
  margin: 6px 0 2px;
}

.cena-castka small {
  display: block;
  font-size: .82rem;
  font-weight: 500;
  color: var(--text-tlumeny);
  margin-top: 4px;
}

.cena-karta ul { margin-top: 16px; }

/* Tabulka ceníku */
.tabulka-obal { overflow-x: auto; margin: 0 0 8px; }

table.cenik {
  width: 100%;
  border-collapse: collapse;
  min-width: 460px;
  background: #fff;
}

table.cenik th, table.cenik td {
  text-align: left;
  padding: 13px 16px;
  border-bottom: 1px solid var(--linka);
  vertical-align: top;
}

table.cenik th {
  background: var(--modra-svetla);
  color: var(--modra-tmava);
  font-weight: 650;
  font-size: .92rem;
}

table.cenik td:last-child {
  white-space: nowrap;
  font-weight: 650;
  color: var(--modra-tmava);
}

table.cenik tr:last-child td { border-bottom: 0; }

/* --------------------------------------------------------------- galerie */

.galerie {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.galerie figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--linka);
  background: #fff;
  box-shadow: var(--stin);
}

.galerie img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }

.galerie figcaption {
  padding: 12px 16px;
  font-size: .9rem;
  color: var(--text-tlumeny);
}

/* Zástupný obrázek, dokud nedodá fotky */
.zastupny-obrazek {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  background: repeating-linear-gradient(45deg, var(--modra-svetla), var(--modra-svetla) 12px, #f0f8fc 12px, #f0f8fc 24px);
  color: var(--modra);
  font-size: .85rem;
  font-weight: 600;
  text-align: center;
  padding: 16px;
}

/* --------------------------------------------------------------- FAQ */

.faq details {
  background: #fff;
  border: 1px solid var(--linka);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
}

.faq summary {
  padding: 16px 20px;
  font-weight: 650;
  color: var(--modra-tmava);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 50px;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  position: absolute;
  right: 20px; top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--modra);
  line-height: 1;
}

.faq details[open] summary::after { content: "−"; }
.faq summary:hover { background: var(--pozadi-alt); }

.faq details > div {
  padding: 0 20px 18px;
  color: var(--text-tlumeny);
}

/* --------------------------------------------------------------- výzva k akci */

.vyzva {
  background: linear-gradient(150deg, var(--modra-tmava), #14567e);
  color: #fff;
  border-radius: 14px;
  padding: 40px;
  text-align: center;
}

.vyzva h2 { color: #fff; }
.vyzva p { color: #cfe5f1; max-width: 560px; margin: 0 auto 24px; }
.vyzva .hero-akce { justify-content: center; }

/* --------------------------------------------------------------- oblast působnosti */

.obce {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.obce li {
  background: #fff;
  border: 1px solid var(--modra-linka);
  color: var(--modra-tmava);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: .9rem;
  font-weight: 550;
  margin: 0;
}

/* --------------------------------------------------------------- upozornění */

.poznamka {
  background: var(--teplá-svetla);
  border-left: 4px solid var(--teplá);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: .95rem;
  color: #7a4415;
}

.poznamka strong { color: #5e3210; }

/* --------------------------------------------------------------- kontaktní blok */

.kontakt-mrizka {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.kontakt-radek {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 0;
  border-bottom: 1px solid var(--linka);
}

.kontakt-radek:last-child { border-bottom: 0; }

.kontakt-radek .karta-ikona { margin-bottom: 0; width: 40px; height: 40px; }

.kontakt-radek dt {
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-tlumeny);
  font-weight: 600;
  margin-bottom: 2px;
}

.kontakt-radek dd { margin: 0; font-size: 1.15rem; font-weight: 650; }
.kontakt-radek dd a { text-decoration: none; }

/* --------------------------------------------------------------- patička */

.paticka {
  background: var(--modra-tmava);
  color: #a8c6d8;
  padding: 48px 0 24px;
  font-size: .93rem;
  margin-top: 0;
}

.paticka h3 {
  color: #fff;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 14px;
}

.paticka a { color: #d6eaf5; text-decoration: none; }
.paticka a:hover { color: #fff; text-decoration: underline; }

.paticka ul { list-style: none; padding: 0; margin: 0; }
.paticka li { margin-bottom: 8px; }

.paticka-mrizka {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-bottom: 36px;
}

.paticka-spodek {
  border-top: 1px solid rgba(255, 255, 255, .13);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  font-size: .87rem;
  color: #8fb2c7;
}

/* --------------------------------------------------------------- mobilní lišta s telefonem */

.mobilni-lista {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 60;
  background: rgba(255, 255, 255, .97);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--linka);
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  gap: 10px;
  box-shadow: 0 -2px 14px rgba(11, 58, 86, .1);
}

.mobilni-lista .tlacitko { flex: 1; padding: 13px 12px; font-size: .98rem; }

/* --------------------------------------------------------------- responzivita */

@media (max-width: 860px) {
  .sekce { padding: 44px 0; }
  .hero { padding: 48px 0 56px; }
  .vyzva { padding: 32px 22px; }
}

@media (max-width: 700px) {
  body { font-size: 16px; padding-bottom: 76px; }

  /* Na mobilu je telefon ve spodní liště, v hlavičce by překážel */
  .hlavicka-telefon { display: none; }
  .mobilni-lista { display: flex; }

  .logo-znak { width: 30px; height: 30px; }
  .logo { font-size: .98rem; }

  /* Zúženo tak, aby se všech pět položek vešlo na 375px bez vodorovného scrollu */
  .navigace .obal { padding: 0 12px; }
  .navigace ul { gap: 0; }
  .navigace a { padding: 12px 6px; font-size: .8rem; letter-spacing: -.01em; }

  .karta { padding: 22px; }
  .kroky li { padding-left: 48px; }
  .kroky li::before { width: 34px; height: 34px; font-size: .92rem; }

  .paticka { padding: 36px 0 20px; }
}

@media (min-width: 701px) {
  .mobilni-lista { display: none !important; }
}

/* Uživatel si nepřeje animace */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* --------------------------------------------------------------- tisk */

@media print {
  .hlavicka, .navigace, .mobilni-lista, .vyzva { display: none; }
  body { padding-bottom: 0; }
  .paticka { background: none; color: #000; }
  .paticka a { color: #000; }
}