/* ============================================================
   ACCSOFT — HEADER & NAVIGATION STYLES v2
   Updated: Real nav, 13-item product mega-dropdown, SVG logo
   ============================================================ */

/* ── Header Base ─────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-sticky);
  height: var(--header-height);
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}

.site-header.is-scrolled {
  border-color: var(--color-border);
  box-shadow: 0 2px 24px rgba(0,0,0,0.07);
}

.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

/* ── Logo ────────────────────────────────────────────────────── */
.header__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity var(--duration-fast) var(--ease-out);
}
.header__logo:hover { opacity: 0.85; }

.header__logo-img {
  height: 46px;
  width: auto;
  object-fit: contain;
  object-position: left center;
  display: block;
}

/* ── Primary Nav ─────────────────────────────────────────────── */
.header__nav {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav__list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 0;
}

.nav__item { position: relative; }

.nav__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--fw-bold);
  color: var(--color-text-primary);
  text-decoration: none;
  border-radius: var(--radius-md);
  background: none;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  letter-spacing: 0.015em;
  transition: color var(--duration-fast) var(--ease-out),
              background-color var(--duration-fast) var(--ease-out);
}

.nav__link:hover,
.nav__link--toggle:hover,
.nav__item.is-active > .nav__link {
  color: var(--color-primary);
  background: var(--color-primary-xlight);
}

.nav__item.is-active > .nav__link {
  font-weight: var(--fw-bold);
  color: var(--color-primary);
}

.nav__chevron {
  transition: transform var(--duration-base) var(--ease-out);
  opacity: 0.5;
  flex-shrink: 0;
}
.nav__link--toggle[aria-expanded="true"] .nav__chevron {
  transform: rotate(180deg);
  opacity: 0.9;
}

/* ── Mega Dropdown — 13 Products, 3 columns ──────────────────── */
.nav__dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  width: 720px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 60px rgba(0,0,0,0.10), 0 4px 16px rgba(0,0,0,0.05);
  padding: var(--space-4) var(--space-5) var(--space-5);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out),
              visibility var(--duration-base);
}

.nav__dropdown::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 11px; height: 11px;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
}

.nav__item--has-dropdown:hover .nav__dropdown,
.nav__item--has-dropdown:focus-within .nav__dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border-light);
}

.nav__dropdown-header-title {
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-widest);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.nav__dropdown-header-cta {
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--duration-fast) var(--ease-out);
}
.nav__dropdown-header-cta:hover { gap: 7px; color: var(--color-primary-dark); }

.nav__dropdown-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
}

.nav__dropdown-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: background var(--duration-fast) var(--ease-out);
}

.nav__dropdown-link:hover { background: var(--color-primary-xlight); }

.nav__dropdown-icon {
  width: 30px; height: 30px;
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}
.nav__dropdown-link:hover .nav__dropdown-icon {
  background: var(--color-primary);
  color: var(--color-white);
}

.nav__dropdown-link-text {
  font-size: 13px;
  font-weight: var(--fw-medium);
  color: var(--color-text-primary);
  line-height: 1.2;
  white-space: nowrap;
}

.nav__dropdown-link-sub {
  display: block;
  font-size: 10px;
  color: var(--color-text-muted);
  margin-top: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 150px;
}

/* ── Header Actions ──────────────────────────────────────────── */
.header__actions {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

.header__phone {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  border: 1.5px solid rgba(45,106,45,0.25);
  background: var(--color-primary-xlight);
  white-space: nowrap;
  transition: all var(--duration-fast) var(--ease-out);
}
.header__phone:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* ── Hamburger ───────────────────────────────────────────────── */
.nav__mobile-toggle {
  display: none;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  background: none;
  border: none;
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out);
}
.nav__mobile-toggle:hover { background: var(--color-border-light); }

.hamburger { display: flex; flex-direction: column; gap: 5px; width: 22px; }
.hamburger span {
  display: block; height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-out),
              opacity var(--duration-fast) var(--ease-out),
              width var(--duration-base) var(--ease-out);
  transform-origin: center;
}
.hamburger span:last-child { width: 14px; align-self: flex-end; }
.nav__mobile-toggle[aria-expanded="true"] .hamburger span:first-child { transform: translateY(7px) rotate(45deg); }
.nav__mobile-toggle[aria-expanded="true"] .hamburger span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__mobile-toggle[aria-expanded="true"] .hamburger span:last-child { width: 22px; transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile Nav ──────────────────────────────────────────────── */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  pointer-events: none;
}
.mobile-nav.is-open { pointer-events: auto; }

.mobile-nav__backdrop {
  position: absolute; inset: 0;
  background: rgba(26,26,24,0.55);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out);
}
.mobile-nav.is-open .mobile-nav__backdrop { opacity: 1; }

.mobile-nav__panel {
  position: absolute;
  top: 0; right: 0;
  width: min(380px, 90vw);
  height: 100%;
  background: var(--color-white);
  box-shadow: var(--shadow-2xl);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-out);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.mobile-nav.is-open .mobile-nav__panel { transform: translateX(0); }

.mobile-nav__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}
.mobile-nav__logo { height: 38px; width: auto; }

.mobile-nav__close {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  background: none; border: none; cursor: pointer;
  color: var(--color-text-secondary);
  transition: background var(--duration-fast) var(--ease-out);
}
.mobile-nav__close:hover { background: var(--color-border-light); color: var(--color-text-primary); }

.mobile-nav__list { flex: 1; padding: var(--space-2) var(--space-3); list-style: none; overflow-y: auto; }
.mobile-nav__item { border-bottom: 1px solid var(--color-border-light); }
.mobile-nav__item:last-child { border-bottom: none; }

.mobile-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-3) var(--space-3);
  font-size: 15px;
  font-weight: var(--fw-bold);
  color: var(--color-text-primary);
  background: none; border: none;
  text-decoration: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
  line-height: 1.2;
  min-height: 44px;
}
.mobile-nav__link:hover,
.mobile-nav__link:focus { color: var(--color-primary); background: var(--color-primary-xlight); outline: none; }
.mobile-nav__link svg { transition: transform var(--duration-base) var(--ease-out); opacity: 0.45; flex-shrink: 0; }
.mobile-nav__link--toggle[aria-expanded="true"] { color: var(--color-primary); }
.mobile-nav__link--toggle[aria-expanded="true"] svg { transform: rotate(180deg); opacity: 1; }

/* Product submenu — accordion, compact grid */
.mobile-nav__sub {
  list-style: none;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  margin: 0 var(--space-1);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
}
.mobile-nav__sub[aria-hidden="false"] {
  max-height: 1000px;
  margin-bottom: var(--space-2);
}

/* 2-column grid inside submenu for compact look */
.mobile-nav__sub {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  padding: var(--space-2);
}
.mobile-nav__sub[aria-hidden="true"] {
  grid-template-rows: 0fr;
  padding: 0;
}

.mobile-nav__sub-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: 12px;
  font-weight: var(--fw-semibold);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-white);
  transition: color var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
  line-height: 1.2;
  min-height: 36px;
}
.mobile-nav__sub-link:hover,
.mobile-nav__sub-link:focus { color: var(--color-primary); border-color: var(--color-primary); background: var(--color-primary-xlight); outline: none; }

.mobile-nav__footer {
  padding: var(--space-5);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}
.mobile-nav__contact { margin-top: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); }
.mobile-nav__contact a {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-sm); color: var(--color-text-secondary); text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}
.mobile-nav__contact a:hover { color: var(--color-primary); }

/* ── Responsive breakpoints ──────────────────────────────────── */
@media (max-width: 1200px) {
  .nav__dropdown { width: 620px; }
  .nav__link { padding: var(--space-2) var(--space-3); font-size: 13px; font-weight: var(--fw-bold); }
}

@media (max-width: 1023px) {
  .header__nav { display: none; }
  .nav__mobile-toggle { display: flex; }
  .mobile-nav { display: block; }
}

@media (min-width: 1024px) {
  .mobile-nav { display: none !important; }
}

body.mobile-nav-open { overflow: hidden; }