/* Zevloria Digital – styly
   Barvy: teplá bílá (pozadí), grafit (text), elektrická modrá (akce). */

:root {
  --bg: #FAF8F4;
  --bg-soft: #F3F0EA;
  --surface: #FFFFFF;
  --ink: #1C1F24;
  --ink-soft: #4E5560;
  --line: rgba(28, 31, 36, .12);
  --line-strong: rgba(28, 31, 36, .22);
  --blue: #2447F5;
  --blue-hover: #1A37D1;
  --blue-light: #8FA6FF;
  --blue-tint: #E8EDFF;
  --dark: #1C1F24;
  --dark-ink: #F4F2EE;
  --dark-soft: #B9BEC7;

  --radius: 14px;
  --radius-lg: 24px;
  --header-h: 72px;
  --container: 1180px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --font: "Inter", "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

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

[hidden] { display: none !important; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 700;
  text-wrap: balance;
}

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

a { color: var(--blue); text-underline-offset: .18em; }
a:hover { color: var(--blue-hover); }

ul, ol { margin: 0; padding: 0; list-style: none; }

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
  border-radius: 6px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 100;
  padding: .75rem 1.25rem;
  background: var(--ink);
  color: #fff;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
}
.skip-link:focus { top: 1rem; color: #fff; }

/* ---------- Hlavička ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 248, 244, .88);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--line); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 750;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
}
.logo:hover { color: var(--ink); }
.logo-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 9px;
  background: var(--ink);
  color: var(--bg);
  font-size: 1.05rem;
  font-weight: 800;
}
.logo-mark::after {
  content: "";
  position: absolute;
  top: -3px;
  right: -3px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--blue);
  border: 2px solid var(--bg);
}
.logo-text { display: inline-flex; align-items: baseline; gap: .35rem; }
.logo-sub { font-weight: 450; color: var(--ink-soft); }

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .25rem;
}
.site-nav a {
  display: inline-block;
  padding: .55rem .85rem;
  border-radius: 999px;
  color: var(--ink);
  font-weight: 550;
  font-size: .975rem;
  text-decoration: none;
  transition: background-color .15s ease, color .15s ease;
}
.site-nav a:hover { background: var(--bg-soft); color: var(--ink); }
.site-nav a.is-active { color: var(--blue); }
.site-nav a.nav-cta {
  margin-left: .35rem;
  background: var(--ink);
  color: var(--bg);
  padding-inline: 1.1rem;
}
.site-nav a.nav-cta:hover { background: var(--blue); color: #fff; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: .6rem;
  min-height: 44px;
  padding: .5rem .95rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
}
.nav-toggle-bars { display: grid; gap: 5px; width: 18px; }
.nav-toggle-bars span {
  display: block;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:first-child { transform: translateY(3.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

@media (max-width: 860px) {
  /* Bez JavaScriptu zůstává navigace viditelná jako zalomený seznam. */
  .header-inner { flex-wrap: wrap; padding-block: .5rem; }
  .site-nav { width: 100%; }
  .site-nav ul { gap: 0; }
  .site-nav a.nav-cta { margin-left: 0; }

  .js .header-inner { flex-wrap: nowrap; padding-block: 0; }
  .js .nav-toggle { display: inline-flex; }
  .js .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: auto;
    padding: .75rem var(--gutter) 1.5rem;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 30px -20px rgba(28, 31, 36, .35);
  }
  .js .site-nav.is-open { display: block; animation: navIn .2s ease; }
  .js .site-nav ul { flex-direction: column; align-items: stretch; gap: .25rem; }
  .js .site-nav a {
    display: block;
    padding: .9rem 1rem;
    border-radius: 12px;
    font-size: 1.125rem;
  }
  .js .site-nav a.nav-cta { margin-top: .5rem; text-align: center; }
}

@keyframes navIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- Tlačítka ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  min-height: 50px;
  padding: .8rem 1.5rem;
  border-radius: 999px;
  border: 1.5px solid transparent;
  font: inherit;
  font-weight: 650;
  font-size: 1rem;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-hover); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); background: var(--surface); }
.btn-lg { min-height: 56px; padding-inline: 1.75rem; font-size: 1.0625rem; }
.btn-arrow { transition: transform .18s ease; }
.btn:hover .btn-arrow { transform: translateX(3px); }
.btn:active { transform: translateY(1px); }

/* ---------- Úvod ---------- */

.hero {
  position: relative;
  padding-block: clamp(3rem, 8vw, 6.5rem) clamp(4rem, 9vw, 7.5rem);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: auto -20% -40% auto;
  width: 60vw;
  height: 60vw;
  max-width: 760px;
  max-height: 760px;
  background: radial-gradient(closest-side, rgba(36, 71, 245, .10), transparent);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4.5rem);
}

.eyebrow {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: .6rem;
  margin-bottom: 1.5rem;
  padding: .4rem .9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: .9rem;
  font-weight: 550;
  color: var(--ink-soft);
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 4px var(--blue-tint);
}

.hero h1 {
  font-size: clamp(2.35rem, 6.2vw, 4.6rem);
  letter-spacing: -0.035em;
  line-height: 1.02;
  margin-bottom: 1.5rem;
  max-width: 14ch;
}

.lead {
  max-width: 36rem;
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 2.25rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-bottom: 2.5rem; }

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  font-size: .95rem;
  color: var(--ink-soft);
}
.hero-points li { display: inline-flex; align-items: center; gap: .5rem; }
.hero-points li::before {
  content: "";
  width: 14px;
  height: 1.5px;
  background: var(--blue);
}

.hero-art { width: 100%; max-width: 480px; justify-self: end; }
.hero-art svg { width: 100%; height: auto; }

.art-line {
  stroke-dasharray: 420;
  stroke-dashoffset: 0;
  animation: drawLine 2.4s cubic-bezier(.6, 0, .2, 1) .2s both;
}
.art-orbit { transform-origin: 240px 240px; animation: spin 80s linear infinite; }
.art-core { transform-origin: 240px 240px; animation: pulse 6s ease-in-out infinite; }

@keyframes drawLine { from { stroke-dashoffset: 420; } to { stroke-dashoffset: 0; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 50% { transform: scale(1.05); } }

/* ---------- Sekce ---------- */

.section { padding-block: clamp(4rem, 9vw, 7.5rem); border-top: 1px solid var(--line); }

.section-head { max-width: 46rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: 1rem;
  font-family: var(--mono);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--blue);
}
.section-kicker::before { content: ""; width: 22px; height: 1.5px; background: currentColor; }

.section h2 { font-size: clamp(2rem, 4.6vw, 3.4rem); margin-bottom: 1.25rem; }
.section-intro { font-size: 1.15rem; color: var(--ink-soft); max-width: 40rem; }

/* Služby */
.services {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.service {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: transparent;
  transition: background-color .2s ease;
}
.service:hover { background: var(--surface); }
.service:first-child { grid-column: span 2; }
.service-num {
  font-family: var(--mono);
  font-size: .85rem;
  color: var(--blue);
  margin-bottom: 2.25rem;
}
.service h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); margin-bottom: .9rem; }
.service p { color: var(--ink-soft); font-size: 1rem; }
.service .service-benefit {
  margin-top: auto;
  padding-top: 1.1rem;
  border-top: 1px dashed var(--line-strong);
  color: var(--ink);
  font-size: .95rem;
}
.service .service-benefit strong { color: var(--blue); font-weight: 650; }
.service-accent { background: var(--blue-tint); }
.service-accent:hover { background: #DEE5FF; }

/* Spolupráce */
.section-dark {
  background: var(--dark);
  color: var(--dark-ink);
  border-top: 0;
  position: relative;
  overflow: hidden;
}
.section-dark::after {
  content: "";
  position: absolute;
  top: -180px;
  right: -180px;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  border: 1px solid rgba(143, 166, 255, .25);
  box-shadow: 0 0 0 70px rgba(143, 166, 255, .04), 0 0 0 140px rgba(143, 166, 255, .03);
  pointer-events: none;
}
.section-dark .container { position: relative; z-index: 1; }
.section-dark .section-kicker { color: var(--blue-light); }
.section-dark .section-intro { color: var(--dark-soft); }
.section-dark :focus-visible { outline-color: var(--blue-light); }

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(244, 242, 238, .14);
  border: 1px solid rgba(244, 242, 238, .14);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.step { padding: clamp(1.5rem, 3vw, 2.25rem); background: var(--dark); }
.step-num {
  display: grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(143, 166, 255, .5);
  border-radius: 50%;
  font-family: var(--mono);
  font-weight: 600;
  color: var(--blue-light);
}
.step h3 { font-size: 1.25rem; margin-bottom: .75rem; }
.step p { color: var(--dark-soft); font-size: 1rem; }

/* O nás */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: start;
}
.about-copy p { font-size: 1.1rem; color: var(--ink-soft); max-width: 38rem; }
.about-copy p:first-of-type { color: var(--ink); font-size: 1.25rem; line-height: 1.55; }

.principles { display: grid; gap: 0; border-top: 1px solid var(--line); margin-bottom: 2rem; }
.principles li { padding-block: 1.35rem; border-bottom: 1px solid var(--line); }
.principles h3 {
  display: flex;
  align-items: center;
  gap: .7rem;
  font-size: 1.15rem;
  margin-bottom: .4rem;
}
.principles h3::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--blue);
  flex: none;
}
.principles p { color: var(--ink-soft); font-size: 1rem; }

.person {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.person-mark {
  flex: none;
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  background: linear-gradient(135deg, #5B7CFF, var(--blue));
  color: #fff;
  font-weight: 700;
  letter-spacing: .02em;
}
.person-name { margin: 0; font-weight: 700; font-size: 1.1rem; }
.person-role { margin: 0; color: var(--ink-soft); font-size: .95rem; }

/* Kontakt */
.section-contact { background: var(--bg-soft); }
.contact-card {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
  gap: clamp(2rem, 5vw, 4rem);
  padding: clamp(1.75rem, 5vw, 4rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.contact-email-label {
  margin: 2rem 0 .35rem;
  font-family: var(--mono);
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.contact-email {
  margin-bottom: 1.75rem;
  font-size: clamp(1.3rem, 4.2vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  overflow-wrap: anywhere;
}
.contact-email a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--blue); text-decoration-thickness: 3px; text-underline-offset: .2em; }
.contact-email a:hover { color: var(--blue); }

.contact-actions { display: flex; flex-wrap: wrap; gap: 1rem 1.25rem; margin-bottom: 1.5rem; }
.contact-action { display: grid; gap: .5rem; justify-items: start; }
.contact-hint { margin: 0; font-size: .9rem; color: var(--ink-soft); min-height: 1.4em; }
.copy-status.is-success { color: #137A3F; font-weight: 600; }
.copy-status.is-error { color: #B42318; font-weight: 600; }
.contact-note { font-size: .95rem; color: var(--ink-soft); max-width: 34rem; }

.company-details {
  margin: 0;
  padding-left: clamp(0rem, 3vw, 2.5rem);
  border-left: 1px solid var(--line);
  display: grid;
  gap: 1.1rem;
  align-content: start;
}
.company-details dt {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: .15rem;
}
.company-details dd { margin: 0; font-weight: 550; line-height: 1.45; }

/* ---------- Patička ---------- */

.site-footer {
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
  background: var(--bg);
  border-top: 1px solid var(--line);
  font-size: .95rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr) auto;
  gap: 2rem 3rem;
  padding-bottom: 2.5rem;
}
.footer-tag { margin-top: 1rem; color: var(--ink-soft); max-width: 22rem; }
.footer-address { font-style: normal; color: var(--ink-soft); line-height: 1.75; }
.footer-address strong { color: var(--ink); }
.footer-nav ul { display: grid; gap: .35rem; }
.footer-nav a { color: var(--ink); text-decoration: none; font-weight: 550; }
.footer-nav a:hover { color: var(--blue); text-decoration: underline; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: .875rem;
}
.footer-bottom p { margin: 0; }
.footer-privacy { flex: 1 1 28rem; max-width: 46rem; }
.back-top { color: var(--ink); font-weight: 600; text-decoration: none; }
.back-top:hover { color: var(--blue); }

/* ---------- Odkrývání při posunu (jen s JS, obsah bez JS je vždy viditelný) ---------- */

.js .reveal.reveal-ready { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.reveal-ready.is-visible { opacity: 1; transform: none; }

/* ---------- Responzivita ---------- */

@media (max-width: 1024px) {
  .services { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .service:first-child { grid-column: span 2; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contact-card { grid-template-columns: minmax(0, 1fr); }
  .company-details { padding-left: 0; border-left: 0; padding-top: 2rem; border-top: 1px solid var(--line); grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-nav { grid-column: 1 / -1; }
  .footer-nav ul { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; }
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-art { justify-self: center; max-width: 400px; }
  .about-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 640px) {
  body { font-size: 1rem; }
  .services { grid-template-columns: minmax(0, 1fr); }
  .service:first-child { grid-column: auto; }
  .service-num { margin-bottom: 1.25rem; }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .company-details { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-actions .btn { flex: 1 1 100%; }
  .contact-action, .contact-action .btn { width: 100%; }
  .logo-sub { display: inline; }
}

@media (max-width: 360px) {
  .logo { font-size: 1rem; }
  .nav-toggle-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
}

@media print {
  .site-header, .hero-art, .contact-actions, .back-top { display: none; }
  .section-dark { background: none; color: var(--ink); }
}