/* ============================================================
   The Presence Lab — nav.css
   Header & Footer · Site colour scheme · Glass aesthetic
   ============================================================ */

:root {
  --nav-navy:        #0F172A;
  --nav-cobalt:      #2563EB;
  --nav-cobalt-h:    #1d4ed8;
  --nav-softgray:    #F8FAFC;
  --nav-text:        #1e293b;
  --nav-muted:       #64748b;
  --nav-border:      #e2e8f0;
  --nav-white:       #ffffff;
  --nav-cobalt-10:   rgba(37,99,235,0.10);
  --nav-cobalt-20:   rgba(37,99,235,0.20);
  --nav-transition:  200ms ease;
  --nav-radius:      6px;
  --nav-radius-pill: 9999px;
  --nav-max:         1200px;
}

/* ── Skip Link ─────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 9999;
  background: var(--nav-cobalt);
  color: #fff;
  font-family: Inter, Arial, sans-serif;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--nav-radius-pill);
  text-decoration: none;
  transition: top var(--nav-transition);
}
.skip-link:focus { top: 12px; }

/* ════════════════════════════════════════════════════════════
   HEADER — glass, sticky, minimalist
   ════════════════════════════════════════════════════════════ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  /* glass */
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--nav-border);
  font-family: Inter, Arial, sans-serif;
  transition: box-shadow var(--nav-transition), background var(--nav-transition);
}
.site-header--scrolled {
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 2px 16px rgba(15, 23, 42, 0.07);
}

.site-header__inner {
  max-width: var(--nav-max);
  margin: 0 auto;
  padding: 0 32px;
  height: 64px;
  display: flex;
  align-items: center;
}

/* ── Logo ──────────────────────────────────────────────────── */
.site-header__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex-shrink: 0;
  margin-right: 36px;
  margin-left: -12px;
}
.site-header__logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--nav-cobalt);
  border-radius: 6px;
  flex-shrink: 0;
}
.site-header__logo-icon svg {
  width: 14px;
  height: 14px;
  fill: #fff;
}
.site-header__logo-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--nav-navy);
  letter-spacing: -0.3px;
  white-space: nowrap;
}
.site-header__logo-dot {
  color: var(--nav-cobalt);
}
.site-header__logo-img {
  height: 24px;
  width: auto;
  display: block;
  object-fit: contain;
}

/* ── Desktop Nav ───────────────────────────────────────────── */
.site-header__nav {
  display: flex;
  align-items: center;
  margin-left: auto;
}
.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: 1px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-header__nav-item { position: relative; }

.site-header__nav-link {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 7px 11px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--nav-navy);
  text-decoration: none;
  border-radius: var(--nav-radius);
  transition: color var(--nav-transition), background var(--nav-transition);
  background: none;
  border: none;
  cursor: pointer;
  font-family: Inter, Arial, sans-serif;
  white-space: nowrap;
  line-height: 1;
}
.site-header__nav-link:hover {
  color: var(--nav-cobalt);
  background: var(--nav-cobalt-10);
  font-weight: 500;
}
.site-header__nav-link--active,
.site-header__nav-link[aria-current="page"] {
  color: var(--nav-cobalt);
  font-weight: 600;
}

.site-header__chevron {
  font-size: 9px;
  opacity: 0.6;
  transition: transform var(--nav-transition);
  display: inline-block;
}
.site-header__nav-item--has-mega .site-header__nav-link[aria-expanded="true"] {
  color: var(--nav-cobalt);
  background: var(--nav-cobalt-10);
}
.site-header__nav-item--has-mega .site-header__nav-link[aria-expanded="true"] .site-header__chevron {
  transform: rotate(180deg);
  opacity: 1;
}

/* ── CTA Button ────────────────────────────────────────────── */
.site-header__cta { margin-left: 16px; flex-shrink: 0; }
.site-header__cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  background: var(--nav-cobalt);
  color: #fff;
  font-size: 13.5px;
  font-weight: 600;
  font-family: Inter, Arial, sans-serif;
  text-decoration: none;
  border-radius: var(--nav-radius-pill);
  border: none;
  transition: background var(--nav-transition), box-shadow var(--nav-transition), transform var(--nav-transition);
  white-space: nowrap;
  letter-spacing: 0.01em;
}
.site-header__cta-btn:hover {
  background: var(--nav-cobalt-h);
  box-shadow: 0 6px 18px rgba(37,99,235,0.28);
  transform: translateY(-1px);
}

/* ── Hamburger ─────────────────────────────────────────────── */
.site-header__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  background: none;
  border: 1px solid var(--nav-border);
  border-radius: var(--nav-radius);
  cursor: pointer;
  padding: 8px;
  margin-left: 12px;
  flex-shrink: 0;
  transition: background var(--nav-transition), border-color var(--nav-transition);
}
.site-header__hamburger:hover {
  background: var(--nav-cobalt-10);
  border-color: var(--nav-cobalt);
}
.site-header__hamburger-bar {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--nav-navy);
  border-radius: 2px;
  transition: transform var(--nav-transition), opacity var(--nav-transition);
}
.site-header__hamburger[aria-expanded="true"] .site-header__hamburger-bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.site-header__hamburger[aria-expanded="true"] .site-header__hamburger-bar:nth-child(2) {
  opacity: 0; transform: scaleX(0);
}
.site-header__hamburger[aria-expanded="true"] .site-header__hamburger-bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ════════════════════════════════════════════════════════════
   MEGA MENU — glass card style
   ════════════════════════════════════════════════════════════ */

.mega-menu {
  display: none;
  position: absolute;
  top: calc(100% + 1px);
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  max-width: var(--nav-max);
  /* glass */
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 2px solid var(--nav-cobalt);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.10), 0 2px 8px rgba(15,23,42,0.04);
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  padding: 20px 28px 18px;
  animation: megaIn 180ms ease;
}
.mega-menu--open { display: grid; }

@keyframes megaIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-6px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.site-header__nav-item--has-mega { position: static; }

.mega-menu__column {
  padding: 0 16px;
  border-right: 1px solid var(--nav-border);
}
.mega-menu__column:first-child { padding-left: 0; }
.mega-menu__column:last-child  { border-right: none; padding-right: 0; }

.mega-menu__column-title {
  display: block;
  font-size: 10px;
  font-weight: 700;
  color: var(--nav-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-bottom: 6px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--nav-border);
}

.mega-menu__list { list-style: none; margin: 0; padding: 0; }

.mega-menu__link {
  display: block;
  font-size: 13.5px;
  font-weight: 400;
  color: var(--nav-text);
  text-decoration: none;
  padding: 4px 0;
  transition: color 140ms ease, padding-left 140ms ease;
  line-height: 1.5;
}
.mega-menu__link:hover          { color: var(--nav-cobalt); padding-left: 5px; }
.mega-menu__link--highlight     { color: var(--nav-cobalt); font-weight: 500; }
.mega-menu__link--highlight:hover { color: var(--nav-cobalt-h); padding-left: 5px; }

.mega-menu__divider {
  border: none;
  border-top: 1px solid var(--nav-border);
  margin: 10px 0;
}

/* ════════════════════════════════════════════════════════════
   MOBILE MENU — glass card
   ════════════════════════════════════════════════════════════ */

.site-header__mobile-menu {
  display: none;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--nav-border);
  max-height: calc(100vh - 56px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.site-header__mobile-menu--open {
  display: block;
  animation: mobileIn 200ms ease;
}
@keyframes mobileIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.mobile-menu__cta-wrap { padding: 14px 16px 0; }
.mobile-menu__cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 46px;
  background: var(--nav-cobalt);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  font-family: Inter, Arial, sans-serif;
  text-decoration: none;
  border-radius: var(--nav-radius-pill);
  transition: background var(--nav-transition);
}
.mobile-menu__cta-btn:hover { background: var(--nav-cobalt-h); }

.mobile-menu__divider {
  border: none;
  border-top: 1px solid var(--nav-border);
  margin: 0;
}

.mobile-menu__link {
  display: block;
  padding: 14px 20px;
  font-size: 14.5px;
  font-weight: 400;
  color: var(--nav-text);
  text-decoration: none;
  border-bottom: 1px solid var(--nav-border);
  font-family: Inter, Arial, sans-serif;
  transition: color var(--nav-transition), background var(--nav-transition);
}
.mobile-menu__link:hover { color: var(--nav-cobalt); background: var(--nav-cobalt-10); }

.mobile-menu__section-label {
  display: block;
  font-size: 10px;
  font-weight: 600;
  color: var(--nav-muted);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  padding: 11px 20px 5px;
  background: var(--nav-softgray);
}

.mobile-menu__sub-link {
  display: block;
  padding: 11px 28px;
  font-size: 13.5px;
  color: var(--nav-muted);
  text-decoration: none;
  border-bottom: 1px solid var(--nav-border);
  background: var(--nav-softgray);
  font-family: Inter, Arial, sans-serif;
  transition: color var(--nav-transition);
}
.mobile-menu__sub-link:hover { color: var(--nav-cobalt); }

/* Mobile accordion */
.mobile-accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 11px 20px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--nav-text);
  background: var(--nav-softgray);
  border: none;
  border-bottom: 1px solid var(--nav-border);
  cursor: pointer;
  font-family: Inter, Arial, sans-serif;
  text-align: left;
  transition: color var(--nav-transition);
}
.mobile-accordion__trigger:hover { color: var(--nav-cobalt); }

.mobile-accordion__icon {
  font-size: 11px;
  color: var(--nav-muted);
  transition: transform var(--nav-transition);
}
.mobile-accordion__trigger[aria-expanded="true"] .mobile-accordion__icon {
  transform: rotate(90deg);
  color: var(--nav-cobalt);
}

.mobile-accordion__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 240ms ease;
  background: var(--nav-softgray);
}
.mobile-accordion__panel--open { max-height: 600px; }

.mobile-accordion__sub-link {
  display: block;
  padding: 10px 32px;
  font-size: 13px;
  color: var(--nav-muted);
  text-decoration: none;
  border-bottom: 1px solid var(--nav-border);
  font-family: Inter, Arial, sans-serif;
  transition: color var(--nav-transition);
}
.mobile-accordion__sub-link:hover { color: var(--nav-cobalt); }

/* ════════════════════════════════════════════════════════════
   FOOTER — navy, cobalt accents, subtle glass on brand col
   ════════════════════════════════════════════════════════════ */

.site-footer {
  background: var(--nav-navy);
  font-family: Inter, Arial, sans-serif;
  color: #94a3b8;
}

.site-footer__inner {
  max-width: var(--nav-max);
  margin: 0 auto;
  padding: 0 32px;
}

/* Brand column glass card */
.site-footer__column--brand {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 24px !important;
}

/* Footer Grid */
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: 28px;
  padding-top: 56px;
  padding-bottom: 40px;
  align-items: start;
}

/* Column titles */
.site-footer__column-title {
  display: block;
  font-size: 10px;
  font-weight: 600;
  color: var(--nav-cobalt);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(37,99,235,0.2);
}
.site-footer__column-title--sub {
  margin-top: 20px;
  margin-bottom: 10px;
  font-size: 10px;
}

/* Footer links */
.site-footer__link {
  display: block;
  font-size: 13px;
  font-weight: 400;
  color: #94a3b8;
  text-decoration: none;
  padding: 3.5px 0;
  line-height: 1.55;
  transition: color 140ms ease, padding-left 140ms ease;
}
.site-footer__link:hover         { color: #fff; padding-left: 4px; }
.site-footer__link--bold         { color: #e2e8f0; font-weight: 500; }
.site-footer__link--bold:hover   { color: #fff; }
.site-footer__link--cta          { color: #60a5fa; font-weight: 500; }
.site-footer__link--cta:hover    { color: #fff; }

/* Brand column elements */
.site-footer__brand-name {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  letter-spacing: -0.2px;
}
.site-footer__brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: var(--nav-cobalt);
  border-radius: 6px;
  flex-shrink: 0;
}
.site-footer__brand-icon svg { width: 13px; height: 13px; fill: #fff; }
.site-footer__brand-logo-link { display: inline-block; margin-bottom: 12px; }
.site-footer__brand-logo-img { height: 36px; width: auto; display: block; object-fit: contain; }

.site-footer__brand-tagline {
  font-size: 13px;
  color: #94a3b8;
  line-height: 1.65;
  margin-bottom: 20px;
  display: block;
  max-width: 270px;
}

.site-footer__contact-row {
  font-size: 12.5px;
  color: #94a3b8;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
  line-height: 1.4;
}
.site-footer__contact-label { color: #60a5fa; font-weight: 500; flex-shrink: 0; }
.site-footer__contact-link  { color: #94a3b8; text-decoration: none; transition: color 140ms; }
.site-footer__contact-link:hover { color: #fff; }

.site-footer__whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: #4ade80;
  text-decoration: none;
  margin-top: 10px;
  font-weight: 500;
  transition: color 140ms;
}
.site-footer__whatsapp:hover { color: #fff; }

.site-footer__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 16px;
}
.site-footer__badge {
  display: inline-block;
  font-size: 11px;
  color: #93c5fd;
  background: rgba(37,99,235,0.12);
  border: 1px solid rgba(37,99,235,0.25);
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.02em;
}

/* Footer bottom bar */
.site-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.site-footer__copyright { font-size: 12px; color: #475569; }

.site-footer__legal { display: flex; align-items: center; gap: 20px; }
.site-footer__legal-link {
  font-size: 12px;
  color: #475569;
  text-decoration: none;
  transition: color 140ms;
}
.site-footer__legal-link:hover { color: #94a3b8; }

/* ════════════════════════════════════════════════════════════
   RESPONSIVE — TABLET (max 1023px)
   ════════════════════════════════════════════════════════════ */

@media (max-width: 1023px) {
  .site-header__inner   { height: 56px; padding: 0 20px; }
  .site-header__nav     { display: none; }
  .site-header__cta     { display: none; }
  .site-header__hamburger { display: flex; }
  .site-header__mobile-menu { display: none; }
  .site-header__mobile-menu--open { display: block; }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
    row-gap: 28px;
  }
  .site-footer__column--brand { grid-column: 1 / -1; }
}

/* ════════════════════════════════════════════════════════════
   RESPONSIVE — MOBILE (max 767px)
   ════════════════════════════════════════════════════════════ */

@media (max-width: 767px) {
  .site-footer__inner { padding: 0 16px; }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 0;
    padding-top: 0;
    padding-bottom: 0;
  }
  .site-footer__column--brand {
    grid-column: 1 / -1;
    padding: 28px 16px !important;
    border-radius: 0;
    border-left: none;
    border-right: none;
    border-top: none;
  }
  .site-footer__column:not(.site-footer__column--brand) {
    padding: 0;
    border-top: 1px solid rgba(255,255,255,0.07);
  }
  .site-footer__column-title {
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    margin-bottom: 0;
    border-bottom: none;
    user-select: none;
  }
  .site-footer__column-title::after {
    content: '+';
    font-size: 14px;
    color: var(--nav-cobalt);
    font-weight: 400;
    flex-shrink: 0;
  }
  .site-footer__column-title--open::after { content: '−'; }
  .site-footer__column-links {
    max-height: 0;
    overflow: hidden;
    transition: max-height 240ms ease;
  }
  .site-footer__column-links--open {
    max-height: 800px;
    padding-bottom: 16px;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 0;
    gap: 10px;
  }
  .site-footer__legal { flex-wrap: wrap; gap: 12px; }
}

/* ════════════════════════════════════════════════════════════
   RESPONSIVE — MOBILE SMALL (max 479px)
   ════════════════════════════════════════════════════════════ */

@media (max-width: 479px) {
  .site-header__inner { padding: 0 14px; }
  .site-footer__grid  { grid-template-columns: 1fr; }
  .site-footer__column--brand { grid-column: 1; }
}