/* Generated CSS — panteon-nauk.org.ua */
:root {
  --primary: #007BFF;
  --secondary: #E5F3FF;
  --accent: #FF6F61;
  --bg: #F9F9F9;
  --text: #333333;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
}
img { max-width: 100%; height: auto; }
a { transition: color 0.2s ease, opacity 0.2s ease; }
a:hover { opacity: 0.85; }

/* Transition base for interactive elements */
.s_bt,
.s_crd,
.s_svc,
.s_prc,
.s_tmc,
.s_fti,
.s_bfi,
.s_tec,
.s_pfi,
.s_blc,
.s_fqi,
.s_cni,
.s_cnta,
.s_nli,
.s_cns {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

/* Button interactive states */
.s_bt:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.s_bt:active { transform: translateY(0); }
.s_bt:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Card hover elevation */
.s_crd:hover,
.s_svc:hover,
.s_prc:hover,
.s_tmc:hover,
.s_fti:hover,
.s_bfi:hover,
.s_tec:hover,
.s_pfi:hover,
.s_blc:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.1);
}

/* Form focus states */
.s_cni:focus,
.s_cnta:focus,
.s_nli:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px #007BFF20;
}

/* FAQ item hover */
.s_fqi:hover {
  border-color: #007BFF40;
}

/* Accessibility — focus visible ring */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
a:focus-visible { border-radius: 2px; }

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

/* Responsive */
@media (max-width: 768px) {
  section { padding-left: 1.5rem !important; padding-right: 1.5rem !important; }
  [style*="grid-template-columns: 1fr 1fr"],
  [style*="grid-template-columns: 2fr"],
  [style*="grid-template-columns: 1.5fr"] {
    grid-template-columns: 1fr !important;
  }
  [style*="columns: 2"], [style*="columns: 3"] { columns: 1 !important; }
  .s_hr { min-height: 70vh !important; }
  .s_nvlk { display: none !important; }
  .s_nvt { display: block !important; }
  .s_ftc { grid-template-columns: 1fr !important; }
  .s_hrc { flex-direction: column !important; align-items: center !important; }
}
@media (max-width: 480px) {
  .s_hrt { font-size: 1.8rem !important; }
  .s_bt { width: 100%; text-align: center; }
}

/* Animation base */

[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}
/* Stagger delays for animated items */
[data-animate][data-delay="1"] { transition-delay: 0.1s; }
[data-animate][data-delay="2"] { transition-delay: 0.2s; }
[data-animate][data-delay="3"] { transition-delay: 0.3s; }
[data-animate][data-delay="4"] { transition-delay: 0.4s; }
[data-animate][data-delay="5"] { transition-delay: 0.5s; }
[data-animate][data-delay="6"] { transition-delay: 0.6s; }

/* Nav mobile menu */
.open { display: block !important; }