:root {
  --bg: #0b1020;        /* pozadí hero */
  --bg-page: #0f172a;   /* pozadí stránky */
  --card: #111827;      /* karty */
  --muted: #94a3b8;     /* sekundární text */
  --text: #e5e7eb;      /* primární text */
  --brand: #0ea5e9;     /* akce/odkazy */
  --brand-2: #22d3ee;   /* akcent */
  --ring: rgba(34, 211, 238, .25);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #e0f2fe;
    --bg-page: #f8fafc;
    --card: #ffffff;
    --muted: #475569;
    --text: #0f172a;
    --brand: #0ea5e9;
    --brand-2: #0369a1;
    --ring: rgba(14, 165, 233, .2);
  }
}

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

html, body {
  height: 100%;
}

body {
  margin: 0;
  font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg-page);
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 1100px;
  margin-inline: auto;
  padding: 24px;
}

.nav {
  position: sticky;
  top: 0;
  backdrop-filter: saturate(1.2) blur(8px);
  background: color-mix(in oklab, var(--bg-page) 80%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--muted) 20%, transparent);
  z-index: 10;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand .logo {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  display: grid;
  place-items: center;
  color: white;
  font-weight: 900;
}

.nav a.btn {
  padding: .6rem 1rem;
  border-radius: 999px;
  background: var(--brand);
  color: white;
  font-weight: 600;
  box-shadow: 0 8px 20px -8px var(--ring);
}

.nav a.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px -8px var(--ring);
}

.hero {
  background:
    radial-gradient(1000px 500px at 80% -100%, color-mix(in oklab, var(--brand) 15%, transparent), transparent),
    radial-gradient(800px 400px at -10% 10%, color-mix(in oklab, var(--brand-2) 18%, transparent), transparent),
    var(--bg);
  padding: 100px 0 60px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 32px;
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

.kicker {
  color: var(--muted);
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.2;
  margin: 8px 0 16px;
}

.lead {
  font-size: clamp(16px, 2.4vw, 20px);
  color: var(--text);
}

.cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: .85rem 1.1rem;
  border-radius: 14px;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: white;
  box-shadow: 0 14px 30px -12px var(--ring);
}

.btn-outline {
  border-color: color-mix(in oklab, var(--brand) 50%, transparent);
  color: var(--brand);
  background: transparent;
}

.btn:hover {
  transform: translateY(-1px);
}

.hero-card {
  background: linear-gradient(180deg, color-mix(in oklab, var(--card) 80%, transparent), var(--card));
  border: 1px solid color-mix(in oklab, var(--muted) 18%, transparent);
  border-radius: 18px;
  padding: 22px;
  display: grid;
  gap: 12px;
  box-shadow: 0 10px 30px -20px rgba(0, 0, 0, .45);
}

.hero-card .row {
  display: flex;
  align-items: start;
  gap: 12px;
}

.hero-card .row svg {
  flex: 0 0 24px;
}

.section {
  padding: 60px 0;
}

.section h2 {
  font-size: clamp(22px, 3vw, 34px);
  margin: 0 0 14px;
}

.muted {
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--card);
  border: 1px solid color-mix(in oklab, var(--muted) 20%, transparent);
  border-radius: 18px;
  padding: 18px;
  display: grid;
  gap: 12px;
}

/* Jen pro sekci služby */
#sluzby .card {
  transition: border-color 0.2s ease, background-color 0.2s ease;
  border: 5px solid rgba(0, 0, 0, 0.05); /* jemný výchozí rámeček */
  cursor: pointer;
  background-color: var(--card, #fff);
  border-radius: 12px;
}

#sluzby .card:hover {
  background-color: rgba(14, 165, 233, 0.05); /* jemně světlejší, lehce modrý nádech */
  border-color: rgba(14, 165, 233, 0.3); /* elegantní modrý okraj */
}

.card h3 {
  margin: 0;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: var(--muted);
}

.chip svg {
  width: 18px;
  height: 18px;
}

.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 900px) {
  .about {
    grid-template-columns: 1fr;
  }
}

.about .photo {
  border-radius: 18px;
  background: linear-gradient(135deg, color-mix(in oklab, var(--brand) 20%, transparent), transparent);
  aspect-ratio: 4/3;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 2rem;
}

.footer {
  padding: 32px 0;
  border-top: 1px solid color-mix(in oklab, var(--muted) 18%, transparent);
  color: var(--muted);
}

.inline-list {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.inline-list a {
  color: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}