:root {
  --ink: #16211c;
  --ink-soft: #3d4a44;
  --muted: #64726b;
  --paper: #fafaf7;
  --panel: #eff2ed;
  --line: #d9ded8;
  --spring: #3e8e3e;      
  --spring-soft: #e4f0e2;
  --shoptet: #ee6a1e;      
  --shoptet-soft: #fdeade;
  --code-bg: #101815;
  --code-ink: #cfe3d3;
  --satiflow: #6277eb;
  --radius: 10px;
  --font-display: "Archivo", sans-serif;
  --font-body: "Source Sans 3", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

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

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: 1.075rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
}

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

a { color: inherit; }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--spring);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 1.5rem; }

/* ---------- header / nav ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky; top: 0; z-index: 50;
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 64px; gap: 1rem;
}
.brand {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.brand .tld { color: var(--muted); font-weight: 400; }
.brand .cursor {
  display: inline-block; width: 0.55em; height: 1.1em;
  background: var(--shoptet); vertical-align: text-bottom;
  margin-left: 2px;
  animation: blink 1.2s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.nav-toggle {
  display: none;
  font-family: var(--font-mono); font-size: 0.85rem;
  background: none; border: 1px solid var(--line); border-radius: 6px;
  padding: 0.4rem 0.7rem; cursor: pointer; color: var(--ink);
}

.site-nav ul { display: flex; gap: 0.25rem; list-style: none; }
.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-decoration: none;
  color: var(--ink-soft);
  padding: 0.45rem 0.65rem;
  border-radius: 6px;
  white-space: nowrap;
}
.site-nav a::before { content: "/"; color: var(--muted); margin-right: 1px; }
.site-nav a:hover { background: var(--panel); color: var(--ink); }
.site-nav a[aria-current="page"] {
  background: var(--ink); color: var(--paper);
}
.site-nav a[aria-current="page"]::before { color: var(--shoptet); }

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 64px;
    background: var(--paper); border-bottom: 1px solid var(--line); padding: 0.75rem 1.5rem 1.25rem; }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0.1rem; }
  .site-nav a { display: block; font-size: 0.95rem; padding: 0.6rem 0.65rem; }
}

/* ---------- typographic system ---------- */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--muted);
  display: inline-flex; align-items: center; gap: 0.5rem;
  margin-bottom: 0.9rem;
}
.eyebrow .verb {
  font-weight: 700;
  padding: 0.1rem 0.45rem;
  border-radius: 5px;
  color: #fff;
}
.eyebrow .verb.get { background: var(--spring); }
.eyebrow .verb.post { background: var(--shoptet); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.1rem); margin-bottom: 1rem; }
h3 { font-size: 1.15rem; margin-bottom: 0.4rem; }

.lead { font-size: 1.2rem; color: var(--ink-soft); max-width: 42em; }

section { padding: 4.5rem 0; }
section + section { border-top: 1px solid var(--line); }
.section-tint { background: var(--panel); }

/* highlight words per world */
.hl-spring { color: var(--spring); }
.hl-shoptet { color: var(--shoptet); }

/* ---------- buttons ---------- */

.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius);
  border: 2px solid var(--ink);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 4px 0 var(--ink); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-spring { background: var(--spring); border-color: var(--spring); color: #fff; }
.btn-spring:hover { box-shadow: 0 4px 0 #2c6b2c; }
.btn-shoptet { background: var(--shoptet); border-color: var(--shoptet); color: #fff; }
.btn-shoptet:hover { box-shadow: 0 4px 0 #b84e12; }
.btn-ghost { background: transparent; color: var(--ink); }

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

.hero { padding: 4.5rem 0 5rem; }
.hero .wrap {
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 3rem; align-items: center;
}
@media (max-width: 880px) {
  .hero .wrap { grid-template-columns: 1fr; }
}
.hero h1 { margin-bottom: 1.2rem; }
.hero .lead { margin-bottom: 2rem; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 0.8rem; }

.code-card {
  background: var(--code-bg);
  color: var(--code-ink);
  border-radius: 14px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  box-shadow: 0 18px 40px -18px rgba(22, 33, 28, 0.55);
  overflow: hidden;
}
.code-card .bar {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.6rem 1rem;
  background: rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  color: #8fa398;
  font-size: 0.75rem;
}
.code-card .dot { width: 9px; height: 9px; border-radius: 50%; }
.code-card pre { padding: 1.1rem 1.25rem; overflow-x: auto; }
.code-card .k { color: #8fd3a2; }        /* keys */
.code-card .s { color: #f0c98a; }        /* strings */
.code-card .n { color: #e8a06a; }        /* numbers */
.code-card .c { color: #6b7f74; }        /* comments */

/* ---------- dva světy (routing cards) ---------- */

.worlds { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
@media (max-width: 760px) { .worlds { grid-template-columns: 1fr; } }

.world-card {
  border: 1px solid var(--line);
  border-top: 6px solid var(--ink);
  border-radius: var(--radius);
  background: #fff;
  padding: 1.8rem;
  display: flex; flex-direction: column; gap: 0.7rem;
}
.world-card.spring { border-top-color: var(--spring); }
.world-card.shoptet { border-top-color: var(--shoptet); }
.world-card p { color: var(--ink-soft); flex-grow: 1; }
.world-card .btn { align-self: flex-start; margin-top: 0.4rem; }

/* ---------- tag chips ---------- */

.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.chip {
  font-family: var(--font-mono); font-size: 0.78rem;
  padding: 0.28rem 0.7rem; border-radius: 999px;
  border: 1px solid var(--line); background: #fff; color: var(--ink-soft);
}
.chip.spring { background: var(--spring-soft); border-color: var(--spring); color: #245c24; }
.chip.shoptet { background: var(--shoptet-soft); border-color: var(--shoptet); color: #9a430f; }

/* ---------- cards grid (doplňky, blog) ---------- */

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
@media (max-width: 880px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 1.6rem;
  display: flex; flex-direction: column; gap: 0.6rem;
  text-decoration: none;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
a.card:hover { transform: translateY(-3px); box-shadow: 0 10px 24px -14px rgba(22,33,28,0.4); }
.card p { color: var(--ink-soft); }
.card .meta {
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted);
  display: flex; gap: 0.8rem; flex-wrap: wrap;
}
.card .more { font-weight: 700; color: var(--spring); margin-top: auto; }
.card.shoptet .more { color: var(--shoptet); }

/* ---------- add-on cards (doplňky) ---------- */

.addon-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.addon-card:hover { transform: translateY(-3px); box-shadow: 0 10px 24px -14px rgba(22, 33, 28, 0.4); }
.addon-cover {
  aspect-ratio: 1200 / 630;
  background-size: cover; background-position: center;
  border-bottom: 1px solid var(--line);
}
.addon-body { padding: 1.4rem; display: flex; flex-direction: column; gap: 0.6rem; flex-grow: 1; }
.addon-body h3 { margin: 0; }
.addon-body p { color: var(--ink-soft); flex-grow: 1; }
.addon-links { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.4rem; }
.addon-links a {
  font-family: var(--font-mono); font-size: 0.78rem; font-weight: 700;
  padding: 0.4rem 0.75rem; border-radius: 999px;
  text-decoration: none;
  border: 1px solid var(--shoptet); background: var(--shoptet-soft); color: #9a430f;
}
.addon-links a:hover { background: var(--shoptet); color: #fff; }

/* ---------- stat strip ---------- */

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
@media (max-width: 760px) { .stats { grid-template-columns: 1fr 1fr; } }
.stat {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; padding: 1.2rem 1.4rem;
}
.stat b {
  font-family: var(--font-display); font-weight: 800;
  font-size: 1.9rem; display: block; letter-spacing: -0.02em;
}
.stat span { color: var(--muted); font-size: 0.92rem; }

/* ---------- timeline (o mně) ---------- */

.timeline { list-style: none; border-left: 2px solid var(--line); margin-left: 0.4rem; }
.timeline li { position: relative; padding: 0 0 2rem 1.6rem; }
.timeline li::before {
  content: ""; position: absolute; left: -7px; top: 0.4rem;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--spring); border: 2px solid var(--paper);
}
.timeline li.shoptet::before { background: var(--shoptet); }
.timeline .when { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); }
.timeline h3 { margin: 0.15rem 0 0.3rem; }
.timeline p { color: var(--ink-soft); max-width: 46em; }

/* ---------- steps (jak spolupráce probíhá) ---------- */

.steps { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; counter-reset: step; }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }
.steps li {
  counter-increment: step;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; padding: 1.5rem;
}
.steps li::before {
  content: "0" counter(step);
  font-family: var(--font-mono); font-weight: 700; color: var(--shoptet);
  display: block; margin-bottom: 0.5rem;
}
.steps p { color: var(--ink-soft); }

/* ---------- quotes ---------- */

.quote {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; padding: 1.5rem;
}
.quote blockquote { color: var(--ink-soft); font-style: italic; }
.quote cite {
  display: block; margin-top: 0.8rem; font-style: normal;
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted);
}

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

details {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; padding: 1rem 1.3rem; margin-bottom: 0.8rem;
}
details summary {
  font-family: var(--font-display); font-weight: 700; cursor: pointer;
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
details summary::after { content: "+"; font-family: var(--font-mono); color: var(--shoptet); font-size: 1.2rem; }
details[open] summary::after { content: "–"; }
details p { margin-top: 0.7rem; color: var(--ink-soft); }

/* ---------- article / blog list ---------- */

.post-list { list-style: none; }
.post-list li { border-bottom: 1px solid var(--line); }
.post-list a {
  display: grid; grid-template-columns: 130px 1fr auto; gap: 1.5rem; align-items: baseline;
  padding: 1.3rem 0.3rem; text-decoration: none;
}
@media (max-width: 640px) { .post-list a { grid-template-columns: 1fr; gap: 0.2rem; } }
.post-list a:hover h3 { color: var(--spring); }
.post-list .when { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); }
.post-list .tag { font-family: var(--font-mono); font-size: 0.72rem; }
.post-list .tag.spring { color: var(--spring); }
.post-list .tag.shoptet { color: var(--shoptet); }

/* ---------- contact ---------- */

.contact-box {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; padding: 2rem;
}
.contact-box dl { display: grid; grid-template-columns: max-content 1fr; gap: 0.5rem 1.5rem; }
.contact-box dt { font-family: var(--font-mono); font-size: 0.82rem; color: var(--muted); }
.contact-box dd a { color: var(--ink); font-weight: 600; }

/* ---------- section with photo background ---------- */

.section-photo { position: relative; overflow: hidden; background: var(--code-bg); }
.section-photo .photo {
  position: absolute; inset: 0;
  background: url("satisflow-cover.jpg") no-repeat;
  background-size: cover;
  background-position: center;
  filter: brightness(1.7) saturate(1.05);
}
.section-photo .photo::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(16, 24, 21, 0.42) 0%, rgba(16, 24, 21, 0.55) 100%);
}
.section-photo .wrap { position: relative; }
.section-photo h2 { color: #fff; text-shadow: 0 2px 12px rgba(16, 24, 21, 0.7); }
.section-photo .lead { color: #fff; text-shadow: 0 1px 8px rgba(16, 24, 21, 0.75); }
.section-photo .btn-ghost { color: #fff; border-color: rgba(255, 255, 255, 0.6); }
.section-photo .btn-ghost:hover { box-shadow: 0 4px 0 rgba(255, 255, 255, 0.55); }
.section-photo .hl-shoptet { color: var(--satiflow); }
.section-photo .btn-shoptet { background: var(--satiflow); border-color: var(--satiflow); }
.section-photo .btn-shoptet:hover { box-shadow: 0 4px 0 #3f51c9; }

/* ---------- contact hero (photo background) ---------- */

.contact-hero { position: relative; overflow: hidden; background: var(--code-bg); }
.contact-hero .photo {
  position: absolute; inset: 0;
  background: url("zdenek.jpg") no-repeat;
  background-size: cover;
  background-position: 74% 26%;
}
.contact-hero .photo::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg,
    rgba(16, 24, 21, 0.94) 0%,
    rgba(16, 24, 21, 0.82) 38%,
    rgba(16, 24, 21, 0.32) 72%,
    rgba(16, 24, 21, 0.08) 100%);
}
.contact-hero .wrap { position: relative; padding: 5.5rem 1.5rem; }
.contact-hero h1 { color: #fff; margin-bottom: 1rem; }
.contact-hero .lead { color: rgba(255, 255, 255, 0.86); margin-bottom: 1.8rem; }

@media (max-width: 640px) {
  .contact-hero .photo { background-position: 66% 20%; }
  .contact-hero .photo::after {
    background: linear-gradient(180deg,
      rgba(16, 24, 21, 0.55) 0%,
      rgba(16, 24, 21, 0.78) 55%,
      rgba(16, 24, 21, 0.95) 100%);
  }
  .contact-hero .wrap { padding: 4rem 1.5rem; }
}

/* ---------- contact icon links ---------- */

.contact-links { display: flex; flex-direction: column; gap: 0.9rem; margin-top: 1.5rem; }
.contact-link {
  display: flex; align-items: center; gap: 1rem;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; padding: 1rem 1.3rem;
  text-decoration: none; color: var(--ink);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.contact-link:hover { transform: translateY(-2px); box-shadow: 0 10px 24px -14px rgba(22,33,28,0.4); }
.contact-link .icon {
  flex: none; width: 42px; height: 42px; border-radius: 9px;
  display: grid; place-items: center;
  background: var(--panel); color: var(--ink);
}
.contact-link .icon svg { width: 21px; height: 21px; fill: currentColor; display: block; }
.contact-link .label { display: flex; flex-direction: column; gap: 0.1rem; }
.contact-link .label b { font-family: var(--font-display); font-weight: 700; font-size: 1rem; }
.contact-link .label span { font-family: var(--font-mono); font-size: 0.8rem; color: var(--muted); }
.contact-link.email .icon { background: var(--shoptet-soft); color: #9a430f; }
.contact-link.linkedin .icon { background: #e7f0fb; color: #0a66c2; }
.contact-link.x .icon { background: #edefef; color: var(--ink); }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--ink); color: #b8c4bd;
  padding: 2.5rem 0; margin-top: 4rem;
  font-size: 0.92rem;
}
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }
.site-footer a { color: #e8efe9; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer .status { font-family: var(--font-mono); font-size: 0.78rem; }
.footer-links { display: flex; flex-direction: column; gap: 0.35rem; }
.footer-links a { width: max-content; }
.site-footer .status b { color: #8fd3a2; }

/* ---------- utility ---------- */

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.center { text-align: center; }
.maxw { max-width: 46em; }
.note {
  font-size: 0.9rem; color: var(--muted);
  border-left: 3px solid var(--shoptet); padding-left: 0.9rem; margin-top: 1.5rem;
}