/* =========================================================================
   site-nav.css — סרגל ניווט אחיד לאתר water-energy.co.il
   Carbon Warm DNA: גרפיט #1F2024 + ענבר #F59E0B + Cyan #38BDF8
   חולץ מ-/index.html ב-2026-05-04 ושוכפל לכל הדפים הראשיים.
   כל הצבעים מוגדרים מקומית ב-.site-header למניעת התנגשות עם CSS של דף host.
   ========================================================================= */

.site-header,
.site-footer {
  --nav-bg: #1F2024;
  --nav-bg-1: #2A2C32;
  --nav-bg-2: #353841;
  --nav-line: rgba(255,255,255,.10);
  --nav-line-bright: rgba(245,158,11,.36);
  --nav-ink: #FAFAF9;
  --nav-ink-soft: #E8E3DA;
  --nav-ink-faint: #ADA89F;
  --nav-accent: #F59E0B;
  --nav-accent-2: #FBBF24;
  --nav-accent-deep: #B45309;
  --nav-accent-glow: rgba(245,158,11,.4);
  --nav-water: #38BDF8;
  --nav-max: 1280px;
  --nav-pad: clamp(20px, 5vw, 64px);
  font-family: 'Heebo', sans-serif;
}

/* === HEADER === */
.site-header {
  position: fixed;
  top: 0; right: 0; left: 0;
  z-index: 100;
  padding: 18px 0;
  transition: background .4s, backdrop-filter .4s, padding .3s;
  direction: rtl;
}
.site-header.scrolled {
  background: rgba(31,32,36,.94);
  backdrop-filter: blur(24px) saturate(180%);
  padding: 12px 0;
  border-bottom: 1px solid var(--nav-line);
}
.site-header * { box-sizing: border-box; }
.site-header a { color: inherit; text-decoration: none; }
.site-header button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.site-header .nav-container {
  max-width: var(--nav-max);
  margin: 0 auto;
  padding: 0 var(--nav-pad);
}
.site-header .nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* === BRAND === */
.site-header .brand { display: flex; align-items: center; gap: 14px; }
.site-header .brand-mark {
  width: 42px; height: 42px;
  position: relative;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--nav-accent) 0%, var(--nav-accent-deep) 100%);
  display: grid; place-items: center;
  font-family: 'Bellefair', serif;
  font-size: 18px;
  color: var(--nav-bg);
  font-weight: 700;
  box-shadow: 0 0 24px rgba(245,158,11,.4), inset 0 1px 0 rgba(255,255,255,.3), 0 0 0 1px rgba(245,158,11,.2);
  overflow: hidden;
}
.site-header .brand-mark img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.site-header .brand-mark::before {
  content: '';
  position: absolute;
  inset: -3px;
  border: 1px solid var(--nav-accent);
  border-radius: 50%;
  opacity: .4;
  animation: nav-ring-pulse 3s ease-in-out infinite;
}
@keyframes nav-ring-pulse {
  0%, 100% { transform: scale(1); opacity: .4; }
  50% { transform: scale(1.18); opacity: 0; }
}
.site-header .brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.site-header .brand-name {
  font-weight: 500;
  font-size: 14px;
  letter-spacing: .01em;
  color: var(--nav-ink);
}
.site-header .brand-tag {
  font-size: 10px;
  color: var(--nav-accent);
  letter-spacing: .18em;
  text-transform: uppercase;
  margin-top: 3px;
  font-weight: 600;
}

/* === LINKS === */
.site-header .nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
  margin: 0; padding: 0;
}
.site-header .nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--nav-ink-soft);
  position: relative;
  padding: 6px 0;
  transition: color .25s;
  letter-spacing: .02em;
  display: inline-block;
}
.site-header .nav-link:hover,
.site-header .nav-link[aria-current="page"] {
  color: var(--nav-accent);
}
.site-header .nav-link.has-mega::after {
  content: '+';
  margin-right: 6px;
  display: inline-block;
  font-weight: 300;
  transition: transform .25s, color .25s;
  color: var(--nav-ink-faint);
}
.site-header .nav-link.has-mega:hover::after {
  transform: rotate(45deg);
  color: var(--nav-accent);
}
.site-header .nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--nav-bg);
  background: var(--nav-accent);
  padding: 11px 22px;
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: transform .25s, box-shadow .25s, background .25s;
  box-shadow: 0 4px 16px var(--nav-accent-glow);
  border-radius: 6px;
}
.site-header .nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px var(--nav-accent-glow);
  background: var(--nav-accent-2);
}

/* === MOBILE === */
.site-header .mobile-toggle {
  display: none;
  color: var(--nav-ink);
  padding: 8px;
}
@media (max-width: 980px) {
  .site-header .nav-links { display: none; }
  .site-header .mobile-toggle { display: block; }
  .site-header .nav-links.open {
    display: flex;
    position: absolute;
    top: 100%; right: 0; left: 0;
    background: rgba(31,32,36,.97);
    backdrop-filter: blur(24px);
    flex-direction: column;
    align-items: stretch;
    padding: 24px var(--nav-pad);
    gap: 0;
    border-top: 1px solid var(--nav-line);
    border-bottom: 1px solid var(--nav-line-bright);
  }
  .site-header .nav-links.open .nav-link {
    padding: 14px 0;
    border-bottom: 1px solid var(--nav-line);
    font-size: 16px;
  }
  .site-header .nav-links.open .nav-cta {
    margin-top: 14px;
    justify-content: center;
  }
}

/* === MEGA MENU === */
.site-header .mega {
  position: absolute;
  top: 100%; right: 0; left: 0;
  background: rgba(42,44,50,.97);
  backdrop-filter: blur(24px);
  border-top: 1px solid var(--nav-line);
  border-bottom: 1px solid var(--nav-line-bright);
  padding: 56px 0;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-12px);
  transition: opacity .3s, transform .3s;
}
.site-header .mega.open {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}
.site-header .mega-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
}
.site-header .mega-col h4 {
  font-size: 10px;
  font-weight: 700;
  color: var(--nav-accent);
  text-transform: uppercase;
  letter-spacing: .2em;
  margin-bottom: 18px;
}
.site-header .mega-col a {
  display: block;
  padding: 8px 0;
  font-size: 14px;
  font-weight: 400;
  color: var(--nav-ink-soft);
  transition: color .2s, padding .2s;
}
.site-header .mega-col a:hover {
  color: var(--nav-accent);
  padding-right: 8px;
}
.site-header .mega-feature {
  font-family: 'Bellefair', serif;
  font-size: 28px;
  color: var(--nav-ink);
  line-height: 1.2;
  margin-bottom: 12px;
}
.site-header .mega-feature-sub {
  font-size: 14px;
  color: var(--nav-ink-soft);
  line-height: 1.5;
  margin-bottom: 14px;
}
/* Mobile: mega menu becomes inline accordion */
@media (max-width: 980px) {
  .site-header .mega { display: none; }
  .site-header.mobile-open .mega.open {
    display: block;
    position: static;
    background: rgba(20,20,22,.97);
    backdrop-filter: blur(24px);
    transform: none;
    opacity: 1;
    pointer-events: all;
    padding: 8px 0 4px;
    border-top: none;
    border-bottom: 1px solid var(--nav-line);
    transition: none;
  }
  .site-header.mobile-open .mega.open .mega-grid {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 0 var(--nav-pad);
  }
  .site-header.mobile-open .mega.open .mega-col {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,.06);
  }
  .site-header.mobile-open .mega.open .mega-col:last-child { border-bottom: none; }
  .site-header.mobile-open .mega.open .mega-col h4 {
    margin-bottom: 6px;
    font-size: 11px;
  }
  .site-header.mobile-open .mega.open .mega-col a {
    padding: 10px 12px;
    font-size: 15px;
    border-bottom: 1px solid rgba(255,255,255,.04);
  }
  .site-header.mobile-open .mega.open .mega-col a:last-child { border-bottom: none; }
  .site-header.mobile-open .mega.open .mega-feature { font-size: 18px; margin-bottom: 8px; }
  .site-header.mobile-open .mega.open .mega-feature-sub { font-size: 13px; margin-bottom: 8px; }
  .site-header .nav-link.has-mega.expanded::after {
    transform: rotate(45deg);
    color: var(--nav-accent);
  }
  .site-header .nav-link.has-mega.expanded { color: var(--nav-accent); }
}

/* === BODY OFFSET (so the fixed header doesn't cover content) === */
body.with-site-header { padding-top: 78px; }
@media (max-width: 980px) {
  body.with-site-header { padding-top: 70px; }
}

/* === FOOTER === */
.site-footer {
  background: var(--nav-bg);
  color: var(--nav-ink-soft);
  padding: 56px 0 32px;
  direction: rtl;
  border-top: 1px solid var(--nav-line);
}
.site-footer * { box-sizing: border-box; }
.site-footer a { color: inherit; text-decoration: none; }
.site-footer .nav-container {
  max-width: var(--nav-max);
  margin: 0 auto;
  padding: 0 var(--nav-pad);
}
.site-footer .footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}
@media (max-width: 720px) {
  .site-footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
.site-footer .footer-brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.site-footer .footer-brand-row {
  display: flex; align-items: center; gap: 12px;
}
.site-footer .footer-brand-mark {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--nav-accent), var(--nav-accent-deep));
  overflow: hidden;
}
.site-footer .footer-brand-mark img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.site-footer .footer-brand-name {
  font-weight: 500; font-size: 15px; color: var(--nav-ink);
}
.site-footer .footer-brand-desc {
  color: var(--nav-ink-faint);
  font-size: 13px;
  line-height: 1.7;
  max-width: 320px;
}
.site-footer .footer-col h4 {
  font-size: 10px;
  font-weight: 700;
  color: var(--nav-accent);
  text-transform: uppercase;
  letter-spacing: .2em;
  margin: 0 0 16px;
}
.site-footer .footer-col a {
  display: block;
  padding: 6px 0;
  font-size: 13px;
  color: var(--nav-ink-soft);
  transition: color .2s, padding .2s;
}
.site-footer .footer-col a:hover { color: var(--nav-accent); padding-right: 4px; }
.site-footer .footer-bottom {
  border-top: 1px solid var(--nav-line);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--nav-ink-faint);
}
.site-footer .footer-bottom a:hover { color: var(--nav-accent); }