@font-face { font-family: "Stencil"; src: url(fonts/stencil-800-latin-ext.woff2) format("woff2"); font-weight: 800; font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+20A0-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Stencil"; src: url(fonts/stencil-800-latin.woff2) format("woff2"); font-weight: 800; font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Schibsted"; src: url(fonts/schibsted-400-latin-ext.woff2) format("woff2"); font-weight: 400; font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+20A0-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Schibsted"; src: url(fonts/schibsted-400-latin.woff2) format("woff2"); font-weight: 400; font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Schibsted"; src: url(fonts/schibsted-600-latin-ext.woff2) format("woff2"); font-weight: 600; font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+20A0-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Schibsted"; src: url(fonts/schibsted-600-latin.woff2) format("woff2"); font-weight: 600; font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Mono"; src: url(fonts/martian-400-latin-ext.woff2) format("woff2"); font-weight: 400; font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+20A0-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Mono"; src: url(fonts/martian-400-latin.woff2) format("woff2"); font-weight: 400; font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

:root {
  --modr: #1730a8;      /* orýsovací modř, kterou se natírá ocel před rýsováním */
  --modr-hluboka: #10237d;
  --ryska: #eef2f5;     /* lesklý kov v rýsce */
  --znackovac: #ffcb05; /* žlutý značkovač na ocel */
  --zinek: #dfe4e5;     /* žárový zinek */
  --zinek-tmavy: #aab3b6;
  --ocel: #11161f;      /* okuje */
  --ocel-mekka: #47505c;
  --okraj: clamp(16px, 4vw, 56px);
  --display: "Stencil", "Arial Narrow", Impact, sans-serif;
  --text: "Schibsted", "Segoe UI", system-ui, sans-serif;
  --mono: "Mono", ui-monospace, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--zinek); color: var(--ocel); font: 400 1.0625rem/1.55 var(--text); }
h1, h2, h3, p, ol, dl, dd { margin: 0; padding: 0; }
ol { list-style: none; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--znackovac); outline-offset: 3px; }
.sekce :focus-visible { outline-color: var(--modr); }

.stitek { font: 400 .6875rem/1.4 var(--mono); letter-spacing: .02em; }

.tlacitko {
  display: inline-block; padding: .95rem 1.5rem; background: var(--znackovac); color: var(--ocel);
  font: 600 1.0625rem/1 var(--text); text-decoration: none; transition: transform .15s ease, box-shadow .15s ease;
}
.tlacitko:hover { transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--ocel); }

.hero {
  position: relative; display: flex; flex-direction: column; justify-content: space-between;
  min-height: 100svh; padding: 20px var(--okraj) 24px; overflow: hidden;
  background: var(--modr); color: var(--ryska);
}
.hero__model { position: absolute; inset: 0; width: 100%; height: 100%; touch-action: pan-y; cursor: grab; }
.hero__model.tahne { cursor: grabbing; }
.hero__lista { position: relative; display: flex; justify-content: space-between; gap: 1rem; pointer-events: none; }
.hero__lista a { pointer-events: auto; text-underline-offset: 3px; }
.hero__text { position: relative; pointer-events: none; margin-top: auto; }
.hero__text .tlacitko { pointer-events: auto; }
.hero h1 {
  font: 800 clamp(3.9rem, 11.5vw, 11rem)/.92 var(--display); letter-spacing: .005em; text-transform: uppercase;
}
.hero__veta { max-width: 31rem; margin: 1.25rem 0 1.5rem; font-size: clamp(1.0625rem, 1.5vw, 1.3125rem); line-height: 1.4; }
.hero__popis { position: absolute; right: var(--okraj); bottom: 24px; max-width: 46%; text-align: right; opacity: .8; pointer-events: none; }

.sekce { padding: clamp(56px, 8vw, 112px) var(--okraj); }
.sekce--postup { background: #cfd6d8; }
.sekce__hlava {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1rem clamp(2rem, 6vw, 6rem); align-items: end;
  margin-bottom: clamp(32px, 4vw, 56px);
}
.sekce__hlava p { max-width: 34rem; color: var(--ocel-mekka); }
h2 { font: 800 clamp(2.5rem, 5.4vw, 5rem)/.98 var(--display); letter-spacing: .012em; text-transform: uppercase; }

.kusovnik { overflow-x: auto; }
.kusovnik table { width: 100%; min-width: 620px; border-collapse: collapse; border: 2px solid var(--ocel); }
.kusovnik th, .kusovnik td { padding: .8rem 1rem; text-align: left; vertical-align: baseline; border-bottom: 1px solid var(--zinek-tmavy); }
.kusovnik thead th { background: var(--ocel); color: var(--zinek); font: 400 .6875rem/1.4 var(--mono); border-bottom: 0; }
.kusovnik tbody tr:last-child > * { border-bottom: 0; }
.kusovnik tbody th { font-weight: 600; white-space: nowrap; }
.kusovnik tbody td:first-child, .kusovnik tbody td:last-child { font: 400 .75rem/1.5 var(--mono); white-space: nowrap; }
.kusovnik tbody td:first-child { color: var(--modr); }
.kusovnik tbody tr:hover { background: var(--ryska); }

/* řetězová kóta: čára s lomítky v místech napojení, nad ní názvy kroků */
.retez { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.retez li { position: relative; padding: 0 1.5rem 0 1rem; }
.retez h3 { padding-bottom: .55rem; font: 600 1.125rem/1.25 var(--text); color: var(--modr); border-bottom: 1.5px solid var(--ocel); margin-left: -1rem; padding-left: 1rem; margin-right: -1.5rem; }
.retez li::before, .retez li:last-child::after {
  content: ""; position: absolute; top: calc(1.125rem * 1.25 + .55rem - 9px); left: 0; width: 1.5px; height: 18px;
  background: var(--ocel); transform: rotate(45deg);
}
.retez li:last-child::after { left: auto; right: 0; }
.retez p { margin-top: .85rem; color: var(--ocel-mekka); font-size: 1rem; }

.poptavka { padding: clamp(64px, 9vw, 128px) var(--okraj); background: var(--modr); color: var(--ryska); }
.poptavka h2 { font-size: clamp(2.9rem, 8vw, 7.5rem); }
.poptavka p { max-width: 34rem; margin: 1.25rem 0 1.75rem; font-size: 1.1875rem; line-height: 1.45; }
.poptavka .tlacitko { font-size: 1.25rem; }
.poptavka .tlacitko:hover { box-shadow: 4px 4px 0 var(--modr-hluboka); }

.razitko { padding: 0 var(--okraj) 24px; background: var(--modr); color: var(--ryska); }
.razitko dl { display: grid; grid-template-columns: 2.4fr 1.2fr 1fr .8fr .7fr; border: 1.5px solid var(--ryska); }
.razitko dl > div { padding: .6rem .8rem; border-left: 1px solid var(--ryska); }
.razitko dl > div:first-child { border-left: 0; }
.razitko dt { font: 400 .625rem/1.4 var(--mono); opacity: .75; }
.razitko dd { font-weight: 600; }

.jen-mys { display: none; }
@media (hover: hover) and (pointer: fine) { .jen-mys { display: inline; } }

@media (max-width: 800px) {
  .hero__popis { position: relative; right: auto; bottom: auto; text-align: left; margin-top: 1.5rem; max-width: none; }
  .sekce__hlava { grid-template-columns: minmax(0, 1fr); }
  .retez { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
  .retez li { padding: 0 0 0 1.25rem; border-left: 1.5px solid var(--ocel); }
  .retez h3 { border-bottom: 0; margin: 0; padding: 0; }
  .retez li::before, .retez li:last-child::after { display: none; }
  .retez p { margin-top: .25rem; }
  .razitko dl { grid-template-columns: 1fr 1fr; }
  .razitko dl > div { border-left: 0; border-top: 1px solid var(--ryska); }
  .razitko dl > div:nth-child(even) { border-left: 1px solid var(--ryska); }
  .razitko__nazev { grid-column: 1 / -1; border-top: 0 !important; }
  .razitko dl > div:nth-child(even).razitko__nazev { border-left: 0; }
}

/* na telefonu tabulka bez vodorovného posouvání: řádek se skládá pod sebe */
@media (max-width: 640px) {
  .kusovnik { overflow: visible; }
  .kusovnik table { display: block; min-width: 0; }
  .kusovnik thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .kusovnik tbody { display: block; }
  .kusovnik tbody tr { display: grid; grid-template-columns: 2rem minmax(0, 1fr) auto; gap: .15rem .25rem; align-items: baseline; padding: .8rem .9rem; border-bottom: 1px solid var(--zinek-tmavy); }
  .kusovnik tbody tr:last-child { border-bottom: 0; }
  .kusovnik tbody tr > * { padding: 0; border-bottom: 0; }
  .kusovnik tbody th { white-space: normal; }
  .kusovnik tbody td:nth-child(3) { grid-column: 2 / -1; grid-row: 2; color: var(--ocel-mekka); font-size: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .tlacitko { transition: none; }
}