/* ===== Inocube – Design tokens (paleta z loga) ===== */
:root {
  --color-blue: #0ea5e9;
  --color-blue-dark: #0284c7;
  --color-green: #84cc16;
  --color-green-bright: #a3e635;
  --color-bg: #0c1222;
  --color-bg-elevated: #111827;
  --color-surface: rgba(17, 24, 39, 0.7);
  --color-glass: rgba(255, 255, 255, 0.06);
  --color-glass-border: rgba(255, 255, 255, 0.1);
  --color-text: #f1f5f9;
  --color-text-muted: #94a3b8;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-glow-blue: 0 0 40px rgba(14, 165, 233, 0.2);
  --shadow-glow-green: 0 0 40px rgba(132, 204, 22, 0.2);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

/* ===== Gradient mesh background ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(14, 165, 233, 0.25), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(132, 204, 22, 0.12), transparent),
    radial-gradient(ellipse 50% 30% at 20% 80%, rgba(14, 165, 233, 0.1), transparent);
  pointer-events: none;
  z-index: 0;
}

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 1.5rem;
  background: var(--color-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-glass-border);
  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.navbar--scrolled {
  background: rgba(12, 18, 34, 0.9);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.navbar__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.25rem;
}

.navbar__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-blue), var(--color-green));
  border-radius: var(--radius);
  color: white;
}

.navbar__logo svg { width: 22px; height: 22px; }

.navbar__name { background: linear-gradient(90deg, var(--color-blue), var(--color-green)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.navbar__toggle {
  display: none;
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  color: var(--color-text);
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.navbar__toggle svg { width: 24px; height: 24px; }

.navbar__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.5rem;
}

.navbar__link {
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
}

.navbar__link:hover { color: var(--color-text); background: var(--color-glass); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem 4rem;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 50% 40%, rgba(14, 165, 233, 0.15), transparent 50%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(132, 204, 22, 0.08), transparent 45%);
  pointer-events: none;
}

.hero__content { position: relative; z-index: 1; max-width: 640px; }

.hero__logo-placeholder {
  width: 100px;
  height: 100px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-blue), var(--color-green));
  border-radius: var(--radius-lg);
  color: white;
  box-shadow: var(--shadow-glow-blue), var(--shadow-glow-green);
}

.hero__logo-placeholder svg { width: 48px; height: 48px; }

.hero__title {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  background: linear-gradient(90deg, var(--color-blue), var(--color-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  margin: 0 0 2rem;
  font-size: 1.125rem;
  color: var(--color-text-muted);
}

.hero__cta { display: inline-flex; align-items: center; gap: 0.5rem; }

.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-muted);
  animation: bounce 2s ease-in-out infinite;
}

.hero__scroll-hint svg { width: 28px; height: 28px; }

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-blue), var(--color-green));
  color: white;
  box-shadow: 0 4px 20px rgba(14, 165, 233, 0.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(14, 165, 233, 0.4), 0 0 20px rgba(132, 204, 22, 0.2);
}

.btn--full { width: 100%; }

/* ===== Sections ===== */
.section {
  position: relative;
  padding: 5rem 1.5rem;
  z-index: 1;
}

.container { max-width: 1100px; margin: 0 auto; }
.container--wide { max-width: 1200px; }
.container--narrow { max-width: 560px; }

.section__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  text-align: center;
  color: var(--color-text);
}

.section__lead {
  margin: 0 0 3rem;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1.125rem;
}

/* ===== Services grid & cards (interaktívne) ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--color-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.card--service {
  text-align: center;
}

.card--service:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: rgba(14, 165, 233, 0.3);
  box-shadow: var(--shadow-glow-blue), 0 20px 40px rgba(0, 0, 0, 0.2);
  background: rgba(255, 255, 255, 0.08);
}

.card--service .card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.25), rgba(132, 204, 22, 0.25));
  border-radius: var(--radius);
  color: var(--color-green-bright);
  transition: transform var(--transition), background var(--transition);
}

.card--service:hover .card__icon {
  transform: scale(1.1);
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.4), rgba(132, 204, 22, 0.4));
}

.card__icon svg { width: 28px; height: 28px; }

.card__title {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
}

.card__text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* ===== About ===== */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about__visual { display: flex; justify-content: center; }

.about__cube-wrap {
  width: 200px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-blue), var(--color-green));
  border-radius: var(--radius-lg);
  color: white;
  box-shadow: var(--shadow-glow-blue), var(--shadow-glow-green);
}

.about__cube-wrap svg { width: 80px; height: 80px; }

.about__content .section__title { text-align: left; }

.about__text {
  margin: 0 0 1rem;
  color: var(--color-text-muted);
}

.about__text strong { color: var(--color-green-bright); }

/* ===== Solutions grid ===== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card--solution {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.card--solution .card__icon {
  margin-bottom: 1rem;
  color: var(--color-blue);
}

.card--solution .card__icon svg { width: 36px; height: 36px; }

/* ===== Contact form (glassmorphism) ===== */
.section--contact { background: rgba(12, 18, 34, 0.5); }

.contact-form {
  background: var(--color-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font);
  font-size: 1rem;
  color: var(--color-text);
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--color-text-muted); opacity: 0.8; }

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2);
}

.contact-form .btn { margin-top: 0.5rem; }

/* ===== Footer ===== */
.footer {
  padding: 3rem 1.5rem 1.5rem;
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-glass-border);
}

.footer__grid {
  max-width: 1200px;
  margin: 0 auto 2rem;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 2rem;
  align-items: start;
}

.footer__brand { display: flex; flex-direction: column; gap: 0.25rem; }

.footer__logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-blue), var(--color-green));
  border-radius: var(--radius);
  color: white;
}

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

.footer__name { font-weight: 700; font-size: 1.125rem; color: var(--color-text); }

.footer__tagline { font-size: 0.75rem; color: var(--color-text-muted); margin: 0; letter-spacing: 0.1em; }

.footer__heading {
  margin: 0 0 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__links ul { list-style: none; margin: 0; padding: 0; }

.footer__links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color var(--transition);
}

.footer__links a:hover { color: var(--color-blue); }

.footer__icons {
  display: flex;
  gap: 0.75rem;
}

.footer__icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-text-muted);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.footer__icons a:hover {
  color: var(--color-green-bright);
  border-color: var(--color-green);
  background: rgba(132, 204, 22, 0.1);
}

.footer__icons svg { width: 20px; height: 20px; }

.footer__bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-glass-border);
  text-align: center;
}

.footer__bottom p { margin: 0; font-size: 0.875rem; color: var(--color-text-muted); }

/* ===== Reveal animation (JS pridáva .reveal--visible) ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .navbar__toggle { display: flex; }
  .navbar__nav { display: none; }
  .navbar__nav.navbar__nav--open { display: block; position: absolute; top: 100%; left: 0; right: 0; background: rgba(12, 18, 34, 0.98); padding: 1rem; border-bottom: 1px solid var(--color-glass-border); }
  .navbar__list { flex-direction: column; }
  .navbar__link { display: block; padding: 0.75rem; }

  .about__grid { grid-template-columns: 1fr; }
  .about__content .section__title { text-align: center; }

  .footer__grid { grid-template-columns: 1fr; text-align: center; }
  .footer__brand { align-items: center; }
  .footer__links ul { text-align: center; }
  .footer__icons { justify-content: center; }
}

@media (max-width: 480px) {
  .hero { padding: 5rem 1rem 3rem; }
  .section { padding: 3rem 1rem; }
  .card { padding: 1.5rem; }
}