@import url('palette.css');
/* ============================================================
   SHARED SITE HEADER styles  —  single source of truth
   Edit THIS file only. Link it on every page (after palette.css)
   alongside the shared header partial (partials/header.html).
   Depends on the theme variables defined in palette.css.
   ============================================================ */

/* ---------- Header shell ---------- */
#site-header{display:contents}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--border-light);transition:box-shadow .3s}
.site-header.scrolled{box-shadow:0 6px 22px rgba(var(--color-accent-rgb),.10)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:78px;gap:20px}

/* ---------- Logo ---------- */
.logo{display:flex;align-items:center}
.logo img{max-height:50px;width:auto}
.logo-fallback{display:none;font-weight:800;font-size:20px;letter-spacing:.5px;color:var(--color-secondary)}

/* ---------- Main nav ---------- */
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav>a,.nav-item>a{font-size:17px;font-weight:600;color:var(--text-heading);padding:10px 12px;border-radius:9px;position:relative;transition:.2s;display:inline-flex;align-items:center;gap:6px}
.main-nav>a::after,.nav-item>a::after{content:"";position:absolute;left:13px;right:13px;bottom:5px;height:2px;background:var(--color-primary);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.main-nav>a:hover,.main-nav>a.active,.nav-item:hover>a{color:var(--color-primary)}
.main-nav>a:hover::after,.main-nav>a.active::after,.nav-item:hover>a::after{transform:scaleX(1)}

/* ---------- Dropdown ---------- */
.nav-item{position:relative;display:flex;align-items:center}
.nav-item>a{display:inline-flex;align-items:center;gap:6px}
.nav-item>a .caret{font-size:11px;transition:transform .25s}
.nav-item:hover>a .caret{transform:rotate(180deg)}
.dropdown{position:absolute;top:calc(100% + 10px);left:0;min-width:250px;background:#fff;border:1px solid var(--border-light);
  border-radius:14px;padding:8px;box-shadow:0 22px 44px rgba(var(--color-accent-rgb),.16);opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s;z-index:60}
.dropdown::before{content:"";position:absolute;top:-6px;left:24px;width:12px;height:12px;background:#fff;border-left:1px solid var(--border-light);border-top:1px solid var(--border-light);transform:rotate(45deg)}
.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:block;padding:11px 14px;border-radius:10px;font-size:14px;font-weight:600;color:var(--text-heading);transition:.2s}
.dropdown a:hover{background:var(--bg-page);color:var(--color-primary);padding-left:20px}

/* ---------- Mobile nav toggle ---------- */
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:26px;height:3px;background:var(--text-heading);border-radius:3px;transition:.3s}

/* ---------- Responsive ---------- */
/* switch to the hamburger before the nav links overflow the bar */
@media (max-width:1024px){
  /* give the header content side breathing room so it never touches edges */
  .site-header .container{max-width:100%;padding:0 24px}
  .header-inner{min-height:62px;gap:12px}
  .logo img{max-height:42px}

  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;top:62px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:#fff;
    border-bottom:1px solid var(--border-light);padding:10px 18px 18px;box-shadow:0 18px 30px rgba(var(--color-accent-rgb),.14);
    max-height:calc(100vh - 62px);overflow-y:auto;
    transform:translateY(-130%);transition:transform .35s ease;
  }
  .main-nav.open{transform:none}
  .main-nav>a,.nav-item{width:100%}
  .main-nav>a,.nav-item>a{font-size:16px;padding:14px 6px;border-bottom:1px solid var(--border-light);border-radius:0;width:100%}
  .main-nav>a::after,.nav-item>a::after{display:none}      /* drop the underline animation on mobile */
  .nav-item{display:block}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;padding:0 0 6px 12px;background:transparent;min-width:0}
  .dropdown::before{display:none}                          /* hide the little tooltip arrow */
  .dropdown a{font-size:14.5px;padding:11px 8px}
}