:root {
  --bg: #0a0d12;
  --bg-soft: #121821;
  --panel: #151d28;
  --panel-2: #1b2533;
  --ink: #f2f6ff;
  --muted: #a8b4c7;
  --line: #2a374a;
  --accent: #0f62fe;
  --accent-soft: #8ab4ff;
  --radius: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "IBM Plex Sans", sans-serif;
  background:
    radial-gradient(circle at 0% 0%, #1a2435 0%, transparent 45%),
    radial-gradient(circle at 100% 0%, #111c29 0%, transparent 42%),
    var(--bg);
  color: var(--ink);
  line-height: 1.65;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: rgba(7, 10, 15, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.logo {
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0.2px;
  font-size: 1.85rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 1.02rem;
  padding: 8px 10px;
  border-radius: 6px;
  transition: color 0.22s ease, background 0.22s ease;
}

.nav a:hover {
  color: var(--ink);
  background: rgba(15, 98, 254, 0.1);
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
}

.lang-btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  padding: 7px 10px;
  cursor: pointer;
}

.lang-btn.active {
  background: var(--accent);
  color: #fff;
}

.menu-btn {
  display: none;
  border: 1px solid var(--line);
  color: var(--ink);
  background: transparent;
  border-radius: 10px;
  padding: 8px 12px;
}

main {
  width: min(1280px, 92vw);
  margin: 0 auto;
}

.section {
  padding: 56px 8px;
}

.home-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 42px;
  align-items: start;
}

.logo-art {
  width: 320px;
  height: 320px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--line);
  box-shadow: 0 12px 42px rgba(2, 8, 18, 0.72);
}

.logo-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.eyebrow {
  margin: 0 0 12px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 1rem;
  color: var(--accent-soft);
}

.lead-strong {
  margin: 0 0 16px;
  color: #dce5f6;
  max-width: 88ch;
  font-size: 1.06rem;
}

.linkedin-btn {
  display: inline-flex;
  text-decoration: none;
  margin-top: 8px;
  border: 1px solid var(--accent);
  color: #cfe0ff;
  padding: 9px 14px;
  border-radius: 999px;
  transition: background 0.2s ease;
}

.linkedin-btn:hover {
  background: var(--accent);
}

.service-tiles {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.tile {
  background: linear-gradient(165deg, var(--panel), var(--panel-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.tile-image {
  height: 250px;
  background-size: cover;
  background-position: center;
  filter: saturate(0.85) contrast(1.02);
}

.tile-image.storage {
  background-image:
    linear-gradient(rgba(8, 11, 16, 0.2), rgba(8, 11, 16, 0.35)),
    url("https://www.datalevel.cz/wp-content/uploads/2020/08/odvetvi1.jpg");
}

.tile-image.continuity {
  background-image:
    linear-gradient(rgba(8, 11, 16, 0.2), rgba(8, 11, 16, 0.35)),
    url("https://images.unsplash.com/photo-1504384308090-c894fdcc538d?auto=format&fit=crop&w=1600&q=80");
}

.tile h3 {
  margin: 14px 16px 18px;
  color: #eef4ff;
  font-size: clamp(1.25rem, 2.2vw, 1.65rem);
  line-height: 1.25;
}

.banner {
  min-height: 230px;
  display: grid;
  place-items: center;
  text-align: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(15, 98, 254, 0.12), rgba(15, 98, 254, 0)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0)),
    var(--bg-soft);
}

.banner h2 {
  margin: 0;
  font-size: clamp(2rem, 7vw, 4rem);
  letter-spacing: -0.02em;
}

h3 {
  margin: 0 0 16px;
  font-size: clamp(1.35rem, 3vw, 2.1rem);
}

.bullets {
  padding-left: 20px;
  margin: 0;
  color: #deebff;
  display: grid;
  gap: 12px;
}

.projects {
  margin: 0 0 28px;
  padding-left: 26px;
  display: grid;
  gap: 14px;
}

.projects li {
  color: #e8f0ff;
  font-size: clamp(1.04rem, 2vw, 1.4rem);
}

.support-form {
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--panel), #121a24);
  border-radius: var(--radius);
  padding: 18px;
  display: grid;
  gap: 10px;
}

.support-form label {
  color: #dce7fc;
  font-size: 0.96rem;
}

.support-form input,
.support-form select,
.support-form textarea {
  width: 100%;
  border: 1px solid #33445f;
  background: #0f151f;
  color: var(--ink);
  border-radius: 8px;
  padding: 11px 12px;
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 1rem;
}

.support-form textarea {
  resize: vertical;
}

.support-form input:focus,
.support-form select:focus,
.support-form textarea:focus {
  outline: 2px solid rgba(15, 98, 254, 0.45);
  outline-offset: 1px;
}

.support-actions {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.action-btn {
  border: 1px solid #3d4f67;
  color: #dce7fc;
  background: transparent;
  border-radius: 999px;
  padding: 10px 14px;
  font-size: 0.94rem;
  cursor: pointer;
}

.action-btn.primary {
  border-color: var(--accent);
  background: rgba(15, 98, 254, 0.2);
}

.support-note {
  margin: 4px 0 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.contact-panel {
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--panel), #121a24);
  border-radius: var(--radius);
  padding: 18px 18px 10px;
  margin-bottom: 18px;
}

.contact-panel p {
  margin: 0 0 8px;
  color: #dce7fc;
  font-size: 1.05rem;
}

.map {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  height: 460px;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 22px 8px 28px;
  color: var(--muted);
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .logo {
    font-size: 1.45rem;
  }

  .nav {
    display: none;
    position: absolute;
    right: 20px;
    top: 62px;
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
    min-width: 180px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #0f151f;
    padding: 10px;
  }

  .lang-switch {
    margin-top: 6px;
  }

  .nav.open {
    display: flex;
  }

  .menu-btn {
    display: inline-block;
  }

  .home-grid {
    grid-template-columns: 1fr;
  }

  .logo-art {
    width: 220px;
    height: 220px;
    margin: 0 auto;
  }

  .service-tiles {
    grid-template-columns: 1fr;
  }

  .tile-image {
    height: 210px;
  }

  .map {
    height: 340px;
  }
}