/**
 * Header, Simple Dropdown Menu & Mobile Drawer — PixelHeads
 * Class prefix: amm-
 *
 * Z-INDEX SCALE:
 *   1000  header (fixed)  — dropdown panels live inside it
 *   1050  mobile drawer backdrop
 *   1060  mobile drawer panel
 *
 * Services mega menu (.amm-mx*) and mobile menu (.amm-mob*) are styled inline in header.php.
 * This file: header shell, nav, simple dropdown cards (Channels / Industries / Resources), hamburger.
 */

:root {
  --amm-color-primary-indigo-hover: var(--color-primary-orange-dark);
  --color-primary-indigo-tint:  color-mix(in srgb, var(--color-primary-orange) 18%, white);
  --color-primary-orange-tint:  var(--color-primary-indigo-tint);
  --color-neutral-black:        var(--color-primary-black);
  --amm-color-neutral-canvas:   var(--color-neutral-canvas);
  --color-neutral-grid:         var(--color-neutral-grid-gray);
  --color-neutral-text:         var(--color-neutral-text-gray);
  --amm-font-serif: var(--font-sans);
  --amm-ease: cubic-bezier(0.4, 0, 0.2, 1);
  --amm-header-h: var(--header-height, 88px);
  --amm-scrollbar-w: 0px;
}

/* ── Scroll lock (mobile drawer only) ── */
html.amm-scroll-locked { overflow: hidden; }
html.amm-scroll-locked body { overflow: hidden; padding-right: var(--amm-scrollbar-w); }

/* Spacer for the fixed header */
/* body { padding-top: var(--amm-header-h); } */

/* WordPress admin-bar compensation */
body.admin-bar .amm-header { top: 32px; }
@media screen and (max-width: 782px) {
  body.admin-bar .amm-header { top: 46px; }
}


/* ══════════════════════════════════════════════════════════
   HEADER SHELL
══════════════════════════════════════════════════════════ */
.amm-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 76px;
  background: var(--color-warm-canvas);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--color-neutral-grid);
}
.amm-header__inner {
  max-width: 1480px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.amm-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 19px;
  color: var(--color-neutral-black);
  white-space: nowrap;
  flex-shrink: 0;
}
.amm-logo__mark { width: 30px; height: 30px; border-radius: 4px; overflow: hidden; flex-shrink: 0; }

.amm-nav { display: flex; height: 100%; }
.amm-nav__list { list-style: none; display: flex; align-items: center; gap: 2px; margin: 0; padding: 0; height: 100%; }
.amm-nav__item { position: relative; }

/* Dropdown <li> spans the header's full height so the panel's
   top:100% lands exactly on the header's bottom edge. */
.amm-nav__item--dropdown { align-self: stretch; }

.amm-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-neutral-black);
  border-radius: 10px;
  cursor: pointer;
  transition: color 160ms var(--amm-ease);
}
.amm-nav__link:hover { color: var(--color-primary-indigo); }
.amm-nav__chevron { width: 14px; height: 14px; transition: transform 200ms var(--amm-ease); }
.amm-nav__dropdown[open] .amm-nav__chevron { transform: rotate(180deg); }
.amm-nav__dropdown[open] > summary { color: var(--color-primary-indigo); }

/* Underline hover — top-level nav links */
.amm-nav__link::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 6px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-primary-indigo);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 200ms var(--amm-ease);
  pointer-events: none;
}
.amm-nav__link:hover::after,
.amm-nav__dropdown[open] > summary::after { transform: scaleX(1); }

details.amm-nav__dropdown {
  height: 100%;
  display: flex;
  align-items: center;
}
.amm-nav__dropdown summary { list-style: none; }
.amm-nav__dropdown summary::-webkit-details-marker,
.amm-nav__dropdown summary::marker { display: none; }

/* Keep the panel laid out when closed so opacity/transform can animate. */
details.amm-nav__dropdown:not([open]) > .amm-nav__dropdown-panel { display: block; }

/* ── Dropdown panel (all dropdowns share this card style) ── */
.amm-nav__dropdown-panel {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-white);
  border: 1px solid var(--color-neutral-grid);
  border-top: 3px solid var(--color-primary-orange);
  border-radius: 0;
  box-shadow: 0 24px 48px color-mix(in srgb, var(--color-black-soft) 12%, transparent);
  min-width: 230px;
  padding: 18px 22px 16px;
  z-index: 20;

  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 180ms var(--amm-ease), transform 180ms var(--amm-ease), visibility 0s linear 180ms;
}
details.amm-nav__dropdown[open] > .amm-nav__dropdown-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
  transition: opacity 180ms var(--amm-ease), transform 180ms var(--amm-ease), visibility 0s linear 0s;
}

.amm-nav__dropdown-panel ul { list-style: none; margin: 0; padding: 0; }

/* Links: text slides right a little and an arrow fades in */
.amm-nav__dropdown-panel li > a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--color-neutral-text);
  transition: color 160ms var(--amm-ease), transform 160ms var(--amm-ease);
}
.amm-nav__dropdown-panel li > a::after {
  content: '\2192';
  font-size: 13px;
  color: var(--color-primary-orange);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 160ms var(--amm-ease), transform 160ms var(--amm-ease);
}
.amm-nav__dropdown-panel li > a:hover {
  color: var(--color-neutral-black);
  transform: translateX(3px);
}
.amm-nav__dropdown-panel li > a:hover::after { opacity: 1; transform: translateX(0); }

/* Services trigger (mega) open state */
.amm-nav__item--mega.is-open .amm-nav__link { color: var(--color-primary-indigo); }
.amm-nav__item--mega.is-open .amm-nav__chevron { transform: rotate(180deg); }
.amm-nav__item--mega.is-open .amm-nav__link::after { transform: scaleX(1); }

/* ── Header actions ── */
.amm-header__actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.amm-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  font-family: var(--font-sans);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-primary-orange) 0%, var(--color-primary-orange-dark) 100%);
  white-space: nowrap;
  transition: transform 160ms var(--amm-ease);
}
.amm-cta:hover { transform: translateY(-2px); }
.amm-cta i, .amm-cta svg { width: 15px; height: 15px; }

.amm-hamburger {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.amm-hamburger__bars { position: relative; width: 18px; height: 13px; display: block; }
.amm-hamburger__bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--color-neutral-black);
  transition: transform 200ms var(--amm-ease), opacity 160ms var(--amm-ease), top 200ms var(--amm-ease);
}
.amm-hamburger__bars span:nth-child(1) { top: 0; }
.amm-hamburger__bars span:nth-child(2) { top: 5.5px; }
.amm-hamburger__bars span:nth-child(3) { top: 11px; }
.amm-hamburger[aria-expanded="true"] .amm-hamburger__bars span:nth-child(1) { top: 5.5px; transform: rotate(45deg); }
.amm-hamburger[aria-expanded="true"] .amm-hamburger__bars span:nth-child(2) { opacity: 0; }
.amm-hamburger[aria-expanded="true"] .amm-hamburger__bars span:nth-child(3) { top: 5.5px; transform: rotate(-45deg); }

@media (max-width: 1023px) {
  .amm-nav { display: none; }
  .amm-hamburger { display: flex; }
  .amm-header__actions .amm-cta { display: none; } /* drawer has its own CTA */
}


/* Mobile menu + Services mega menu are styled inline in header.php
   (<style id="amm-mob-css"> and <style id="amm-mx-css">). */

@media (prefers-reduced-motion: reduce) {
  .amm-nav__dropdown-panel, .amm-nav__link::after, .amm-nav__dropdown-panel li > a, .amm-nav__dropdown-panel li > a::after { transition: none !important; }
}