/* vyjadrenisiti.cz — vizuál situačního výkresu
   Papír technického výkresu, tuš, barvy sítí dle výkresových zvyklostí,
   mono anotace, patička jako popisové pole. */

:root {
  --paper: #f5f4ef;
  --paper-deep: #edece3;
  --ink: #23272f;
  --ink-soft: #565b66;
  --parcel: #c9c8bc;
  --voda: #1d63c8;
  --plyn: #cf9a00;
  --elektro: #c6392f;
  --sdeleni: #d96f1f;
  --kanal: #7a5a38;
  --teplo: #7b4fa6;
  --white: #fffefb;
  --ok: #2e7d43;
  --err: #c6392f;
  --font-display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --font-body: "Barlow", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "Menlo", monospace;
  --maxw: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}

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

a { color: var(--voda); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink); }

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

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- typografie ---------- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.08; text-wrap: balance; }
h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); letter-spacing: 0.01em; }
h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); }
h3 { font-size: 1.35rem; letter-spacing: 0.02em; }

.mono { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.04em; }

/* Legenda — eyebrow sekce jako položka legendy výkresu */
.legend {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 0.75rem;
  text-transform: uppercase; letter-spacing: 0.14em; color: var(--ink-soft);
  margin-bottom: 14px;
}
.legend::before {
  content: ""; width: 42px; height: 0;
  border-top: 3px solid var(--ink);
}
.legend.l-voda::before { border-color: var(--voda); }
.legend.l-plyn::before { border-color: var(--plyn); }
.legend.l-elektro::before { border-color: var(--elektro); }
.legend.l-sdeleni::before { border-color: var(--sdeleni); border-top-style: dashed; }
.legend.l-kanal::before { border-color: var(--kanal); }
.legend.l-teplo::before { border-color: var(--teplo); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(245, 244, 239, 0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--parcel);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 64px; gap: 16px;
}
.brand {
  font-family: var(--font-display); font-weight: 700; font-size: 1.45rem;
  text-transform: uppercase; letter-spacing: 0.03em;
  color: var(--ink); text-decoration: none; white-space: nowrap;
}
.brand .tld { font-family: var(--font-mono); font-size: 0.8rem; font-weight: 400; color: var(--ink-soft); }
.site-nav { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.site-nav a {
  font-size: 0.92rem; font-weight: 500; color: var(--ink); text-decoration: none;
  padding: 10px 0;
}
.site-nav a:hover { color: var(--voda); }
.nav-cta {
  background: var(--ink); color: var(--paper) !important;
  padding: 11px 20px !important; font-weight: 600;
  border: 1px solid var(--ink);
}
.nav-cta:hover { background: var(--voda); border-color: var(--voda); }
.nav-toggle { display: none; }

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 44px; min-height: 44px;
    background: none; border: 1px solid var(--parcel);
    font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em;
    color: var(--ink); cursor: pointer;
  }
  .site-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    background: var(--paper); border-bottom: 1px solid var(--parcel);
    flex-direction: column; align-items: stretch; gap: 0; padding: 8px 24px 16px;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 0; border-bottom: 1px dashed var(--parcel); }
  .site-nav a:last-child { border-bottom: none; }
  .nav-cta { text-align: center; margin-top: 10px; border: none; }
}

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--parcel); }
.hero .wrap {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 40px; align-items: center; padding-top: 64px; padding-bottom: 64px;
}
.hero-note { margin-top: 8px; }
.hero p.lead { font-size: 1.16rem; color: var(--ink-soft); margin: 22px 0 30px; max-width: 34em; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 50px; padding: 12px 28px;
  font-family: var(--font-body); font-size: 1rem; font-weight: 600;
  text-decoration: none; cursor: pointer;
  border: 1px solid var(--ink); transition: background 0.15s, color 0.15s;
}
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--voda); border-color: var(--voda); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }

.hero-facts {
  display: flex; gap: 28px; flex-wrap: wrap; margin-top: 38px;
  border-top: 1px dashed var(--parcel); padding-top: 20px;
}
.fact { flex: 1; min-width: 120px; }
.fact strong {
  display: block; font-family: var(--font-display); font-size: 1.9rem; font-weight: 600;
}
.fact span { font-size: 0.85rem; color: var(--ink-soft); }

.hero-drawing { position: relative; }
.hero-drawing svg { width: 100%; height: auto; display: block; }

@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; padding-top: 44px; padding-bottom: 44px; }
  .hero-drawing { order: -1; max-width: 480px; }
}

/* animace kreslení sítí */
.draw-line {
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: drawline 1.6s ease-out forwards;
}
.draw-line.d2 { animation-delay: 0.35s; }
.draw-line.d3 { animation-delay: 0.7s; }
.draw-line.d4 { animation-delay: 1.05s; }
@keyframes drawline { to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) {
  .draw-line { stroke-dashoffset: 0; }
}

/* ---------- sekce ---------- */
.section { padding: 72px 0; }
.section-deep { background: var(--paper-deep); border-top: 1px solid var(--parcel); border-bottom: 1px solid var(--parcel); }
.section-head { max-width: 640px; margin-bottom: 42px; }
.section-head p { color: var(--ink-soft); margin-top: 12px; }

/* proč vyjádření — explainer s fotkou */
.explain { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.explain figure { border: 1px solid var(--parcel); background: var(--white); padding: 10px; }
.explain figcaption { font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink-soft); padding-top: 8px; letter-spacing: 0.06em; }
.explain p + p { margin-top: 14px; }
.explain .who {
  margin-top: 26px; padding: 18px 20px; background: var(--white);
  border-left: 3px solid var(--voda); font-size: 0.95rem;
}
@media (max-width: 860px) { .explain { grid-template-columns: 1fr; } }

/* kroky — reálná sekvence, číslování jako revize výkresu */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; counter-reset: step; }
.step {
  background: var(--white); border: 1px solid var(--parcel); padding: 28px 24px 24px;
  position: relative;
}
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.1em;
  color: var(--paper); background: var(--ink); padding: 3px 8px;
  position: absolute; top: -1px; left: -1px;
}
.step h3 { margin: 14px 0 10px; }
.step p { font-size: 0.96rem; color: var(--ink-soft); }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }

/* správci — legenda výkresu jako grid */
.operators { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--parcel); border: 1px solid var(--parcel); }
.operator { background: var(--white); padding: 22px 20px 18px; }
.operator .line-sample { height: 0; border-top: 3px solid var(--ink); width: 56px; margin-bottom: 14px; }
.operator .line-sample.dash { border-top-style: dashed; }
.operator h3 { font-size: 1.1rem; margin-bottom: 6px; }
.operator p { font-size: 0.85rem; color: var(--ink-soft); }
.operator .mono { display: block; margin-top: 10px; color: var(--ink-soft); }
@media (max-width: 960px) { .operators { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .operators { grid-template-columns: 1fr; } }

/* ceník */
.pricing { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; align-items: stretch; }
.price-card { background: var(--white); border: 1px solid var(--parcel); padding: 34px 30px; display: flex; flex-direction: column; }
.price-card.featured { border: 2px solid var(--ink); }
.price-card .price {
  font-family: var(--font-display); font-size: 2.6rem; font-weight: 700; margin: 12px 0 4px;
}
.price-card .price small { font-size: 1rem; font-weight: 400; color: var(--ink-soft); font-family: var(--font-body); }
.price-card ul { list-style: none; margin: 20px 0 26px; flex: 1; }
.price-card li { padding: 8px 0 8px 26px; position: relative; font-size: 0.96rem; border-bottom: 1px dashed var(--paper-deep); }
.price-card li::before { content: "—"; position: absolute; left: 0; color: var(--voda); }
.price-note { margin-top: 18px; font-size: 0.85rem; color: var(--ink-soft); }
@media (max-width: 820px) { .pricing { grid-template-columns: 1fr; } }

/* FAQ */
.faq { max-width: 780px; }
.faq details { border-bottom: 1px solid var(--parcel); }
.faq summary {
  font-family: var(--font-display); font-size: 1.25rem; font-weight: 600;
  padding: 18px 34px 18px 0; cursor: pointer; list-style: none; position: relative;
  min-height: 44px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; font-family: var(--font-mono); position: absolute; right: 4px; top: 18px;
  color: var(--ink-soft);
}
.faq details[open] summary::after { content: "−"; }
.faq details p { padding: 0 0 20px; color: var(--ink-soft); max-width: 44em; }
.faq details p + p { margin-top: 10px; }

/* ---------- formulář ---------- */
.contact-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 48px; }
.contact-side p { color: var(--ink-soft); margin-top: 12px; }
.contact-side .mono { display: block; margin-top: 26px; color: var(--ink-soft); }
.contact-side a.tel {
  display: inline-block; font-family: var(--font-display); font-size: 1.7rem; font-weight: 600;
  color: var(--ink); text-decoration: none; margin-top: 4px;
}
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }

form.inquiry { background: var(--white); border: 1px solid var(--parcel); padding: 30px 28px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }
.field { margin-bottom: 16px; }
.field label {
  display: block; font-family: var(--font-mono); font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.12em; color: var(--ink-soft); margin-bottom: 6px;
}
.field input, .field select, .field textarea {
  width: 100%; min-height: 48px; padding: 11px 13px;
  font-family: var(--font-body); font-size: 1rem; color: var(--ink);
  background: var(--paper); border: 1px solid var(--parcel); border-radius: 0;
}
.field textarea { min-height: 110px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid var(--voda); outline-offset: 0; border-color: var(--voda);
}
.hp { position: absolute; left: -9999px; top: -9999px; height: 0; overflow: hidden; }
form.inquiry .btn { width: 100%; margin-top: 6px; }
#form-status { margin-top: 14px; font-size: 0.95rem; min-height: 1.4em; }
#form-status[data-state="ok"] { color: var(--ok); }
#form-status[data-state="error"] { color: var(--err); }
.form-consent { font-size: 0.8rem; color: var(--ink-soft); margin-top: 12px; }

/* ---------- článek (podstránky) ---------- */
.article { max-width: 780px; }
.article .lead { font-size: 1.15rem; color: var(--ink-soft); margin: 18px 0 8px; }
.article h2 { margin: 44px 0 14px; }
.article h3 { margin: 28px 0 10px; }
.article p + p { margin-top: 14px; }
.article ul, .article ol { margin: 14px 0 14px 22px; }
.article li { margin-bottom: 8px; }
.article figure { border: 1px solid var(--parcel); background: var(--white); padding: 10px; margin: 28px 0; }
.article figcaption { font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink-soft); padding-top: 8px; letter-spacing: 0.06em; }
.article table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 0.95rem; }
.article th, .article td { border: 1px solid var(--parcel); padding: 10px 12px; text-align: left; vertical-align: top; }
.article th { background: var(--paper-deep); font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; }

.cta-box {
  background: var(--ink); color: var(--paper); padding: 30px 28px; margin: 40px 0;
}
.cta-box h3 { color: var(--paper); margin-bottom: 8px; }
.cta-box p { color: #c8cbd2; font-size: 0.98rem; margin-bottom: 18px; }
.cta-box .btn { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.cta-box .btn:hover { background: var(--voda); color: #fff; border-color: var(--voda); }

.breadcrumb { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.06em; margin: 26px 0 0; color: var(--ink-soft); }
.breadcrumb a { color: var(--ink-soft); }

/* ---------- patička = popisové pole výkresu ---------- */
.site-footer { border-top: 2px solid var(--ink); background: var(--white); margin-top: 40px; }
.titleblock {
  display: grid; grid-template-columns: 1.2fr 1fr 1fr 0.8fr;
  border-left: 1px solid var(--parcel); border-right: 1px solid var(--parcel);
}
.tb-cell { padding: 20px; border-right: 1px solid var(--parcel); font-size: 0.9rem; }
.tb-cell:last-child { border-right: none; }
.tb-cell .tb-label {
  display: block; font-family: var(--font-mono); font-size: 0.68rem;
  text-transform: uppercase; letter-spacing: 0.12em; color: var(--ink-soft); margin-bottom: 8px;
}
.tb-cell ul { list-style: none; }
.tb-cell li { margin-bottom: 6px; }
.tb-cell a { color: var(--ink); }
.footer-meta {
  border-top: 1px solid var(--parcel);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 14px 20px; font-family: var(--font-mono); font-size: 0.7rem;
  letter-spacing: 0.08em; color: var(--ink-soft);
}
@media (max-width: 860px) {
  .titleblock { grid-template-columns: 1fr 1fr; }
  .tb-cell { border-bottom: 1px solid var(--parcel); }
}
@media (max-width: 520px) { .titleblock { grid-template-columns: 1fr; } }