/* XcelVations header — transparent overlay menu that sits seamlessly on the hero
   and shares the site's unified "Midnight & Amber" palette (same --xv-* tokens
   as color-scheme-blue.css). Topbar + horizontal nav + navy dropdowns + mobile
   overlay. Behavior in /css/assets/js/navigation.js (source of truth: .is-open). */

:root {
  --xv-serif: "Noto Serif JP", Georgia, serif;
  --xv-bg-deep: #0a1526;
  --xv-bg: #0c1c33;
  --xv-panel: #13284a;
  --xv-panel-2: #1a3257;
  --xv-overlay-rgb: 9, 19, 37;
  --xv-text: #f3f1ea;
  --xv-body: #cdd6e1;
  --xv-muted: #9aa7b8;
  --xv-accent: #e3a743;
  --xv-accent-rgb: 227, 167, 67;
  --xv-accent-strong: #f3bf68;
  --xv-on-accent: #0a1526;
  --xv-border: rgba(227, 167, 67, .2);
  --xv-line: rgba(255, 255, 255, .12);
}

/* ---------- Transparent overlay wrapper (floats over the hero) ---------- */
.overlay-header {
  position: fixed; top: 0; left: 0; z-index: 200; width: 100%;
  padding-bottom: 28px; pointer-events: none;
  /* navy scrim matching the hero overlay tone */
  background: linear-gradient(180deg,
    rgba(var(--xv-overlay-rgb), .9) 0%, rgba(var(--xv-overlay-rgb), .5) 50%, rgba(var(--xv-overlay-rgb), 0) 100%);
  transition: background .25s ease, padding .25s ease, box-shadow .25s ease;
}
.overlay-header a, .overlay-header button { pointer-events: auto; }

/* Scrolled state: collapse to a compact solid bar so the menu stays readable over content */
.overlay-header.is-stuck {
  padding-bottom: 0;
  background: rgba(7, 10, 17, .94);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, .38);
}
.overlay-header.is-stuck .topbar { display: none; }
.overlay-header.is-stuck .site-header__inner { min-height: 60px; padding-top: 9px; padding-bottom: 9px; }

/* ---------- Topbar (transparent) ---------- */
.topbar {
  margin: 0; border-bottom: 1px solid var(--xv-line); background: transparent;
  color: var(--xv-body); font: 500 12.5px/1.4 var(--xv-serif); letter-spacing: .3px;
}
.topbar__inner { display: flex; align-items: center; justify-content: center; gap: 12px 28px; max-width: 1280px; margin: 0 auto; min-height: 38px; padding: 7px 24px; }
.topbar__promos { display: flex; flex-wrap: wrap; gap: 6px 26px; align-items: center; justify-content: center; }
.topbar__promos span { position: relative; }
.topbar__promos span + span::before {
  content: ""; position: absolute; left: -14px; top: 50%; width: 4px; height: 4px;
  transform: translateY(-50%) rotate(45deg); background: var(--xv-accent);
}

/* ---------- Header (transparent) ---------- */
.site-header { background: transparent; }
.site-header__inner {
  position: relative; display: grid; grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center; gap: clamp(18px, 3vw, 32px); max-width: 1280px; margin: 0 auto;
  min-height: 72px; padding: 12px 24px;
}
.brand { display: inline-flex; align-items: center; min-width: 0; text-decoration: none; }
.brand img { width: auto; height: 46px; max-width: min(220px, 42vw); filter: drop-shadow(0 2px 12px rgba(0, 0, 0, .5)); }

/* ---------- Main nav (serif, white on hero, amber hover) ---------- */
.main-nav { display: flex; align-items: center; justify-content: center; gap: clamp(18px, 2.2vw, 32px); }
.site-header .main-nav a,
.site-header .main-nav__dropdown-toggle {
  color: var(--xv-text); font: 500 16px/1.2 var(--xv-serif); letter-spacing: .2px;
  text-decoration: none; text-shadow: 0 1px 10px rgba(0, 0, 0, .5); transition: color .15s ease;
}
.main-nav > a { display: inline-flex; align-items: center; }
.site-header .main-nav a:hover,
.site-header .main-nav__dropdown-toggle:hover,
.site-header .main-nav__item--has-dropdown.is-open > .main-nav__dropdown-toggle { color: var(--xv-accent); }
.main-nav__item--has-dropdown { display: inline-flex; align-items: center; position: relative; }
.main-nav__dropdown-toggle { display: inline-flex; align-items: center; gap: 7px; padding: 0; border: 0; background: transparent; cursor: pointer; }
.main-nav__dropdown-icon {
  display: inline-block; width: 8px; height: 8px;
  border-right: 2px solid currentColor; border-bottom: 2px solid currentColor;
  transform: translateY(-2px) rotate(45deg); transition: transform .15s ease;
}
.main-nav__item--has-dropdown.is-open > .main-nav__dropdown-toggle .main-nav__dropdown-icon { transform: translateY(2px) rotate(225deg); }

/* ---------- Mega dropdowns (raised navy panel = same as content cards) ---------- */
.practice-menu {
  position: absolute; top: calc(100% + 10px); left: 50%; z-index: 220;
  display: none; width: min(calc(100vw - 48px), 760px);
  opacity: 0; pointer-events: none; transform: translate(-50%, -8px); visibility: hidden;
}
.main-nav__item--has-dropdown.is-open > .practice-menu { display: block; opacity: 1; pointer-events: auto; transform: translate(-50%, 0); visibility: visible; }
.practice-menu--compact { width: max-content; min-width: 240px; max-width: calc(100vw - 48px); }
.practice-menu__inner {
  display: grid; gap: 16px; padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid rgba(255, 255, 255, .14); border-radius: 16px;
  /* Translucent + blurred: shows the SAME picture+overlay behind it, just
     darkened, so it matches the hero instead of being a solid blue block. */
  background: rgba(var(--xv-overlay-rgb), .6);
  -webkit-backdrop-filter: blur(26px) saturate(1.05); backdrop-filter: blur(26px) saturate(1.05);
  color: var(--xv-body);
  box-shadow: 0 26px 60px rgba(4, 10, 22, .6);
}
.main-nav .practice-menu__overview {
  display: grid; grid-template-columns: max-content minmax(0, 1fr); align-items: center; gap: 4px 16px;
  padding: 14px 16px; border: 1px solid rgba(255, 255, 255, .12); border-radius: 12px;
  background: rgba(255, 255, 255, .06); color: var(--xv-body);
}
.main-nav .practice-menu__overview:hover { border-color: var(--xv-border); text-decoration: none; }
.practice-menu__overview strong { color: var(--xv-text); font: 700 18px/1.25 var(--xv-serif); }
.practice-menu__overview .practice-menu__eyebrow { grid-row: 1 / span 2; align-self: center; }
.practice-menu__overview span:last-child { color: var(--xv-muted); font-size: 14px; }
.practice-menu__eyebrow,
.practice-menu__group-title { color: var(--xv-accent); font: 700 12px/1.2 var(--xv-serif); letter-spacing: 1.4px; text-transform: uppercase; }
.practice-menu__groups { display: grid; grid-template-columns: repeat(3, max-content); gap: 18px 56px; justify-content: start; }
.practice-menu--compact .practice-menu__groups { grid-template-columns: max-content; justify-content: start; }
.practice-menu__group { display: grid; align-content: start; gap: 9px; }
.site-header .practice-menu__group a {
  display: block; color: var(--xv-body); font: 500 14.5px/1.3 "Segoe UI", Arial, sans-serif;
  text-decoration: none; text-shadow: none; white-space: nowrap;
}
.site-header .practice-menu__group a:hover { color: var(--xv-accent); text-decoration: none; }
.site-header .practice-menu__overview { text-shadow: none; }

/* ---------- CTAs (amber primary, outline secondary) ---------- */
.header-actions { display: inline-flex; align-items: center; gap: 10px; justify-content: flex-end; }
/* ==================================================================
   XV CANONICAL CTA SYSTEM — 3 sets (token-based; loads on every page
   because navigation.css is global). Primary = solid gold pill,
   Secondary = gold-outline pill, Tertiary = underlined gold text + arrow.
   Legacy tt-btn and hw-btn rules are left inert (no element uses them
   after the HTML re-class). See the token home in :root above.
   ================================================================== */
:root {
  --xv-btn-font: "Segoe UI", Arial, sans-serif;
  --xv-btn-font-size: 15px;
  --xv-btn-weight: 700;
  --xv-btn-pad-y: 13px;
  --xv-btn-pad-x: 26px;
  --xv-btn-radius: 999px;
  --xv-btn-transition: 160ms ease;
  --xv-btn-outline: rgba(var(--xv-accent-rgb), .55);
  --xv-btn-secondary-hover: rgba(var(--xv-accent-rgb), .12);
  --xv-btn-secondary-active: rgba(var(--xv-accent-rgb), .18);
  --xv-focus: var(--xv-accent-strong);
}
.xv-btn, .xv-btn--tertiary {
  font-family: var(--xv-btn-font); font-size: var(--xv-btn-font-size);
  font-weight: var(--xv-btn-weight); line-height: 1; letter-spacing: .01em; cursor: pointer;
}
.xv-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em; vertical-align: middle;
  padding: var(--xv-btn-pad-y) var(--xv-btn-pad-x);
  border: 1px solid transparent; border-radius: var(--xv-btn-radius);
  background: transparent; color: inherit; text-decoration: none; white-space: nowrap;
  -webkit-appearance: none; appearance: none;
  transition: background-color var(--xv-btn-transition), border-color var(--xv-btn-transition),
    color var(--xv-btn-transition), box-shadow var(--xv-btn-transition), transform var(--xv-btn-transition);
}
.xv-btn--primary {
  background: var(--xv-accent); border-color: var(--xv-accent);
  color: var(--xv-on-accent); -webkit-text-fill-color: var(--xv-on-accent);
}
.xv-btn--primary:hover { background: var(--xv-accent-strong); border-color: var(--xv-accent-strong); transform: translateY(-1px); }
.xv-btn--primary:active { background: var(--xv-accent); transform: translateY(1px); }
.xv-btn--secondary {
  background: transparent; border: 1.5px solid var(--xv-btn-outline);
  color: var(--xv-text); -webkit-text-fill-color: var(--xv-text);
}
.xv-btn--secondary:hover { background: var(--xv-btn-secondary-hover); border-color: var(--xv-accent); transform: translateY(-1px); }
.xv-btn--secondary:active { background: var(--xv-btn-secondary-active); transform: translateY(1px); }
.xv-btn--tertiary {
  display: inline-flex; align-items: center; gap: .35em; padding: 4px 2px; border: 0; background: none;
  color: var(--xv-accent); -webkit-text-fill-color: var(--xv-accent);
  text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1.5px;
  border-radius: 4px; transition: color var(--xv-btn-transition), transform var(--xv-btn-transition);
}
.xv-btn--tertiary::after { content: "\2192"; text-decoration: none; transition: transform var(--xv-btn-transition); }
.xv-btn--tertiary.is-plain::after { content: none; }
.xv-btn--tertiary:hover { color: var(--xv-accent-strong); -webkit-text-fill-color: var(--xv-accent-strong); text-decoration-color: var(--xv-accent-strong); }
.xv-btn--tertiary:hover::after { transform: translateX(3px); }
.xv-btn--tertiary:active { transform: translateY(1px); }
.xv-btn:focus-visible, .xv-btn--tertiary:focus-visible {
  outline: 2px solid transparent; outline-offset: 2px;
  box-shadow: 0 0 0 2px var(--xv-bg-deep), 0 0 0 4px var(--xv-focus);
}
.xv-btn:disabled, .xv-btn[aria-disabled="true"],
.xv-btn--tertiary:disabled, .xv-btn--tertiary[aria-disabled="true"] {
  opacity: .45; cursor: not-allowed; pointer-events: none; transform: none; box-shadow: none;
}
@media (max-width: 600px) {
  :root { --xv-btn-font-size: 14px; --xv-btn-pad-y: 11px; --xv-btn-pad-x: 20px; }
  .xv-btn { width: 100%; }
  .xv-btn--tertiary { width: auto; }
}
@media (prefers-reduced-motion: reduce) {
  .xv-btn, .xv-btn--tertiary, .xv-btn--tertiary::after { transition: none; }
  .xv-btn:hover, .xv-btn:active, .xv-btn--tertiary:hover::after { transform: none; }
}
@media (forced-colors: active) {
  .xv-btn { border-color: currentColor; }
  .xv-btn:focus-visible, .xv-btn--tertiary:focus-visible { outline-color: Highlight; }
}

/* ---------- Mobile toggle ---------- */
.menu-toggle {
  display: none; align-items: center; justify-content: center; gap: 10px; min-height: 42px; padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, .5); border-radius: 10px; background: rgba(255, 255, 255, .06);
  color: #fff; font: 500 15px/1 var(--xv-serif); cursor: pointer;
}
.menu-toggle__bars { position: relative; width: 18px; height: 2px; background: currentColor; }
.menu-toggle__bars::before, .menu-toggle__bars::after {
  content: ""; position: absolute; left: 0; width: 18px; height: 2px; background: currentColor;
  transition: transform .15s ease, top .15s ease;
}
.menu-toggle__bars::before { top: -6px; }
.menu-toggle__bars::after { top: 6px; }
body.nav-open .menu-toggle__bars { background: transparent; }
body.nav-open .menu-toggle__bars::before { top: 0; transform: rotate(45deg); }
body.nav-open .menu-toggle__bars::after { top: 0; transform: rotate(-45deg); }

/* ---------- Desktop -> Mobile (solid navy overlay) ---------- */
@media (max-width: 1024px) {
  .site-header__inner { grid-template-columns: minmax(0, 1fr) auto; min-height: 64px; }
  .menu-toggle { display: inline-flex; }
  .main-nav, .header-actions { display: none; grid-column: 1 / -1; width: 100%; }

  body.nav-open { overflow: hidden; }
  body.nav-open .overlay-header { position: fixed; inset: 0; z-index: 950; height: 100dvh; background: var(--xv-bg); overflow: hidden; }
  body.nav-open .topbar { display: none; }
  body.nav-open .site-header { height: 100dvh; }
  body.nav-open .site-header__inner { height: 100dvh; grid-template-rows: auto minmax(0, 1fr) auto; align-items: start; gap: 12px 14px; padding: 16px 22px; }
  body.nav-open .main-nav, body.nav-open .header-actions { display: flex; }
  body.nav-open .main-nav { flex-direction: column; align-items: stretch; gap: 0; min-height: 0; overflow-y: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; }
  body.nav-open .header-actions { flex-direction: column; align-items: stretch; gap: 10px; padding-top: 14px; border-top: 1px solid var(--xv-line); }
  body.nav-open .header-actions .xv-btn { width: 100%; }
  body.nav-open .site-header .main-nav > a,
  body.nav-open .site-header .main-nav__dropdown-toggle {
    display: flex; width: 100%; justify-content: space-between; min-height: 52px; padding: 12px 0;
    border-bottom: 1px solid var(--xv-line); text-shadow: none;
  }
  .main-nav__item--has-dropdown { display: block; width: 100%; }

  .practice-menu { position: static; display: none; width: 100%; min-width: 0; max-width: none; opacity: 1; pointer-events: auto; transform: none; visibility: visible; }
  .main-nav__item--has-dropdown.is-open > .practice-menu { display: block; }
  .practice-menu__inner { box-shadow: none; border-radius: 12px; padding: 16px; background: var(--xv-panel); }
  .practice-menu__groups { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .main-nav .practice-menu__overview { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .practice-menu__overview .practice-menu__eyebrow { grid-row: auto; }
  .site-header .practice-menu__group a { white-space: normal; }
}

@media (max-width: 767px) {
  .topbar__inner { gap: 6px; padding: 6px 16px; min-height: 0; }
  .topbar__promos { flex-direction: column; gap: 3px; }
  .topbar__promos span + span::before { display: none; }
  .brand img { height: 40px; }
}