/* ==========================================================================
   LAYOUT — header, footer, sections, grids (v2: white / editorial)
   ========================================================================== */

/* ---------- Sections ---------- */
.section {
  position: relative;
  padding-block: var(--space-3xl);
  background: var(--c-paper);
  color: var(--c-ink);
}
.section--tight { padding-block: var(--space-2xl); }
.section--alt { background: var(--c-paper-alt); }
.section--light { background: var(--c-paper); color: var(--c-ink); } /* kept for back-compat */
.section--dark, .section--ink {
  background: var(--c-void);
  color: #fff;
}

.grid { display: grid; gap: var(--space-lg); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Preloader ---------- */
.preloader {
  position: fixed; inset: 0;
  background: var(--c-paper);
  z-index: 9998;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
  gap: var(--space-sm);
}
.preloader__mark {
  height: auto;
  width: 150px;
  max-width: 60vw;
  opacity: 0;
  animation: preloaderFadeIn 0.6s var(--ease-soft) forwards;
}
@keyframes preloaderFadeIn { to { opacity: 1; } }
.preloader__bar {
  width: 220px; height: 1.5px;
  background: var(--c-paper-line);
  overflow: hidden;
  border-radius: 2px;
}
.preloader__bar span {
  display: block; height: 100%; width: 0%;
  background: var(--c-blue);
}

/* ---------- Custom cursor ---------- */
.cursor-dot, .cursor-ring {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  mix-blend-mode: difference;
}
.cursor-dot { width: 6px; height: 6px; background: var(--c-ink); }
.cursor-ring {
  width: var(--cursor-size); height: var(--cursor-size);
  border: 1px solid var(--c-ink);
  transition: width var(--dur-fast) var(--ease-soft), height var(--dur-fast) var(--ease-soft), opacity var(--dur-fast);
}
.cursor-ring.is-active { width: 60px; height: 60px; border-color: var(--c-blue); }
.cursor-ring.is-hidden-by-label { opacity: 0; }
.cursor-label {
  position: fixed; top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  width: 84px; height: 84px;
  border-radius: 50%;
  background: var(--c-ink);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--f-label); font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  text-align: center;
  opacity: 0; scale: 0.6;
  transition: opacity 0.25s var(--ease-soft), scale 0.25s var(--ease-soft);
}
.cursor-label.is-active { opacity: 1; scale: 1; }
@media (hover: none), (pointer: coarse) {
  .cursor-label { display: none; }
}
@media (hover: none), (pointer: coarse) {
  .cursor-dot, .cursor-ring { display: none; }
}
.js-loading .cursor-dot, .js-loading .cursor-ring { opacity: 0; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  padding: var(--space-md) 0;
  transition: background var(--dur-med) var(--ease-soft), padding var(--dur-med) var(--ease-soft), border-color var(--dur-med), box-shadow var(--dur-med);
  border-bottom: 1px solid transparent;
  background: rgba(255,255,255,0);
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  padding: var(--space-sm) 0;
  border-color: var(--c-paper-line);
  box-shadow: 0 8px 30px -20px rgba(13,18,32,0.15);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-md);
}
.site-branding { display: flex; align-items: center; }
.site-branding img, .site-branding svg { height: 32px; width: auto; }
.site-logo-img { height: 30px; width: auto; display: block; }
.site-branding .site-title {
  font-family: var(--f-display); font-weight: 600; font-size: 1.35rem; color: var(--c-ink);
}

.nav__list {
  display: flex; align-items: center; gap: var(--space-lg);
  font-size: var(--fs-small);
  font-weight: 500;
}
.nav__list a {
  position: relative;
  padding: 6px 0;
  color: var(--c-slate);
  transition: color var(--dur-fast);
}
.nav__list a::after {
  content: '';
  position: absolute; left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--c-blue);
  transition: width var(--dur-fast) var(--ease-soft);
}
.nav__list a:hover, .nav__list a.is-active { color: var(--c-ink); }
.nav__list a:hover::after, .nav__list a.is-active::after { width: 100%; }
.nav__list .menu-item-has-children { position: relative; }
.nav__list .sub-menu {
  position: absolute; top: 130%; left: 0;
  background: var(--c-paper-panel); border: 1px solid var(--c-paper-line);
  border-radius: var(--r-sm); padding: 8px; min-width: 200px;
  box-shadow: var(--shadow-card);
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: all var(--dur-fast) var(--ease-soft);
}
.nav__list .menu-item-has-children:hover .sub-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav__list .sub-menu a { display: block; padding: 8px 10px; color: var(--c-ink); }

.header-actions { display: flex; align-items: center; gap: var(--space-md); }
.header-actions .phone-link {
  display: flex; align-items: center; gap: 8px;
  font-size: var(--fs-small); color: var(--c-slate);
}
.header-actions .phone-link svg { width: 16px; height: 16px; color: var(--c-blue); }
.header-social {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--c-paper-line);
  color: var(--c-ink);
  transition: border-color var(--dur-fast), color var(--dur-fast);
}
.header-social svg { width: 15px; height: 15px; }
.header-social:hover { border-color: var(--c-blue); color: var(--c-blue); }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1px solid var(--c-paper-line);
  align-items: center; justify-content: center;
  flex-direction: column; gap: 5px;
}
.nav-toggle span { display: block; width: 18px; height: 1.5px; background: var(--c-ink); transition: all var(--dur-fast); }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav {
  position: fixed; inset: 0;
  background: var(--c-paper);
  z-index: 480;
  display: flex; flex-direction: column;
  justify-content: center;
  padding: var(--gutter);
  transform: translateY(-100%);
  transition: transform var(--dur-med) var(--ease-signal);
}
.mobile-nav.is-open { transform: translateY(0); }
.mobile-nav .nav__list { flex-direction: column; align-items: flex-start; gap: var(--space-md); font-size: var(--fs-h3); font-family: var(--f-display); }
.mobile-nav .nav__list a { color: var(--c-ink); }
.mobile-nav .sub-menu { position: static; opacity: 1; visibility: visible; background: none; border: none; box-shadow: none; transform: none; padding-left: var(--space-sm); }

/* ---------- Footer (the one dark "punctuation" section) ---------- */
.site-footer { background: var(--c-void); color: #fff; position: relative; overflow: hidden; }
.footer-cta {
  padding-block: var(--space-2xl);
  border-bottom: 1px solid var(--c-void-line);
  text-align: center;
}
.footer-cta h2 { font-size: var(--fs-h1); max-width: 900px; margin-inline: auto; }
.footer-cta p { color: var(--c-void-mist); margin-top: var(--space-sm); font-size: var(--fs-lead); }
.footer-cta .btn { margin-top: var(--space-lg); }

.footer-grid {
  padding-block: var(--space-2xl);
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-lg);
}
.footer-col__title { font-family: var(--f-label); font-weight: 600; font-size: var(--fs-micro); letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-void-mist); margin-bottom: var(--space-sm); }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { position: relative; color: #fff; opacity: 0.82; transition: opacity var(--dur-fast); display: inline-block; width: fit-content; }
.footer-col a::after {
  content: ''; position: absolute; left: 0; bottom: -2px;
  width: 0; height: 1px; background: #fff;
  transition: width var(--dur-fast) var(--ease-soft);
}
.footer-col a:hover { opacity: 1; }
.footer-col a:hover::after { width: 100%; }
.footer-about p { color: var(--c-void-mist); max-width: 320px; margin-top: var(--space-sm); }
.site-logo-img--footer { height: 28px; filter: brightness(0) invert(1); opacity: 0.95; }

.footer-bottom {
  border-top: 1px solid var(--c-void-line);
  padding-block: var(--space-md);
  display: flex; align-items: center; justify-content: space-between;
  font-size: var(--fs-small); color: var(--c-void-mist);
}
.footer-bottom .social-links { display: flex; gap: 12px; }
.footer-bottom .social-links a {
  width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--c-void-line);
  display: flex; align-items: center; justify-content: center;
}
.footer-bottom .social-links svg { width: 15px; height: 15px; }

/* ---------- Responsive scaffolding (fine detail in responsive.css) ---------- */
@media (max-width: 960px) {
  .nav__list:not(.mobile-nav .nav__list) { display: none; }
  .header-actions .phone-link { display: none; }
  .header-social { display: none; }
  .nav-toggle { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}