/* Public site chrome: header, footer, page intro, shared panels. Depends on core.css. */

/* Page backdrop: blueprint grid under the first screen of inner pages */
#main { position: relative; display: block; }
#main:not(:has(.hero))::before {
  content: ''; position: absolute; inset: 0 0 auto; z-index: -1; height: 560px; pointer-events: none;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 56px 56px; background-position: center -1px;
  -webkit-mask-image: radial-gradient(ellipse 80% 100% at 50% 0%, #000 10%, transparent 70%);
  mask-image: radial-gradient(ellipse 80% 100% at 50% 0%, #000 10%, transparent 70%);
}
#main > .container:last-child { padding-bottom: clamp(64px, 8vw, 104px); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  border-bottom: 1px solid transparent; background: color-mix(in srgb, var(--bg) 72%, transparent);
  -webkit-backdrop-filter: saturate(1.6) blur(16px); backdrop-filter: saturate(1.6) blur(16px);
  transition: border-color .25s var(--ease), background-color .25s var(--ease);
}
html.is-scrolled .site-header { border-bottom-color: var(--line); background: color-mix(in srgb, var(--bg) 86%, transparent); }
.header-inner { display: flex; align-items: center; gap: 12px; height: 100%; }
.site-header .brand { margin-right: clamp(8px, 2vw, 28px); }
.main-nav { display: flex; align-items: center; gap: 2px; }
.main-nav > a, .nav-trigger, .header-login {
  display: inline-flex; align-items: center; gap: 8px; height: 36px; padding: 0 12px; border: 0; border-radius: 9px; background: none;
  color: var(--ink-2); font: 500 .9375rem/1 var(--font-sans); letter-spacing: -.006em; white-space: nowrap; cursor: pointer; transition: color .15s, background-color .15s;
}
.main-nav > a:hover, .nav-trigger:hover, .nav-trigger[aria-expanded="true"], .header-login:hover { color: var(--ink); background: color-mix(in srgb, var(--ink) 5%, transparent); }
.main-nav > a[aria-current="page"], .nav-trigger[data-current] { color: var(--ink); background: var(--surface); box-shadow: inset 0 0 0 1px var(--line), var(--shadow-sm); }
.main-nav .nav-account-link { display: none; }
.nav-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 3px color-mix(in srgb, var(--lime) 28%, transparent); }
.nav-chevron { transition: transform .2s var(--ease); }
.nav-trigger[aria-expanded="true"] .nav-chevron { transform: rotate(180deg); }
.header-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.header-cta { margin-left: 2px; }

/* Services menu */
.nav-item { position: relative; }
.nav-menu {
  position: absolute; top: calc(100% + 12px); left: -8px; z-index: 60; width: min(880px, calc(100vw - 2 * var(--gutter)));
  padding: 10px; border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--surface); box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(-6px); transition: opacity .18s var(--ease), transform .18s var(--ease), visibility 0s linear .18s;
}
.nav-menu::before { content: ''; position: absolute; inset: -14px 0 auto; height: 14px; }
.nav-trigger[aria-expanded="true"] + .nav-menu { opacity: 1; visibility: visible; transform: none; transition: opacity .18s var(--ease), transform .18s var(--ease); }
@media (hover: hover) and (min-width: 1121px) {
  .nav-item:hover .nav-menu { opacity: 1; visibility: visible; transform: none; transition: opacity .18s var(--ease) .06s, transform .18s var(--ease) .06s; }
  .nav-item:hover .nav-chevron { transform: rotate(180deg); }
}
.nav-menu-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 4px; }
.nav-menu-group { min-width: 0; padding: 6px; border-radius: 14px; }
.nav-group-seo { border: 1px solid var(--violet-line); background: linear-gradient(170deg, var(--violet-soft), color-mix(in srgb, var(--violet-soft) 15%, var(--surface)) 70%); }
.nav-menu-head { display: flex; align-items: flex-start; gap: 12px; padding: 8px; border-radius: 10px; transition: background-color .15s; }
.nav-menu-head:hover { background: color-mix(in srgb, var(--ink) 4%, transparent); }
.nav-menu-icon { display: grid; place-items: center; flex: none; width: 36px; height: 36px; border-radius: 10px; background: var(--violet-soft); color: var(--violet-text); }
.nav-group-seo .nav-menu-icon { background: var(--violet); color: #fff; }
.nav-menu-head strong { display: block; color: var(--ink); font-size: .9375rem; font-weight: 650; line-height: 1.3; }
.nav-menu-head small { display: block; margin-top: 2px; color: var(--muted); font-size: .875rem; line-height: 1.35; }
.nav-menu-group ul { display: grid; gap: 1px; margin-top: 4px; }
.nav-menu-group li a { display: flex; align-items: center; gap: 10px; padding: 5px 8px; border-radius: 9px; color: var(--ink-2); font-size: .9375rem; font-weight: 500; transition: color .15s, background-color .15s; }
.nav-menu-group li a:hover { color: var(--ink); background: color-mix(in srgb, var(--ink) 4%, transparent); }
.nav-menu-group .platform-mark { width: 28px; height: 28px; border-radius: 8px; }
.nav-menu-group .platform-mark svg { width: 15px; height: 15px; }
.nav-menu-note { margin: 2px 8px 6px 56px; color: var(--ink-2); font-size: .875rem; line-height: 1.45; }
.nav-menu-all { display: flex; align-items: center; justify-content: space-between; margin: 6px 0 0; padding: 12px 14px 6px; border-top: 1px solid var(--line-soft); color: var(--violet-text); font-size: .9375rem; font-weight: 600; }
.nav-menu-all .icon { transition: transform .2s var(--ease); }
.nav-menu-all:hover .icon { transform: translateX(3px); }
.menu-toggle { display: none; place-items: center; width: 40px; height: 40px; padding: 0; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); color: var(--ink); box-shadow: var(--shadow-sm); }
.menu-toggle .menu-close, .menu-toggle[aria-expanded="true"] .menu-open { display: none; }
.menu-toggle[aria-expanded="true"] .menu-close { display: inline-grid; }

/* Footer */
.site-footer { padding: 56px 0 28px; border-top: 1px solid var(--line); background: var(--surface-2); }
.footer-top { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: 32px; }
.footer-top > div:not(.footer-brand) { display: grid; align-content: start; gap: 10px; }
.footer-top strong { margin-bottom: 4px; color: var(--ink); font-size: .875rem; font-weight: 650; }
.footer-top > div:not(.footer-brand) a { width: fit-content; max-width: 100%; color: var(--muted); font-size: .9375rem; transition: color .15s; }
.footer-top a:hover { color: var(--ink); }
.footer-brand p { max-width: 30ch; margin: 14px 0 16px; color: var(--muted); font-size: .9375rem; }
.footer-mail { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-2); font-size: .9375rem; font-weight: 500; overflow-wrap: anywhere; }
.footer-address { display: flex; align-items: flex-start; gap: 8px; max-width: 34ch; margin-top: 10px; color: var(--muted); font-size: .9375rem; line-height: 1.5; }
.footer-address .icon, .footer-mail .icon { flex: none; margin-top: 2px; color: var(--violet-text); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: .875rem; }

/* Inner page intro */
.page-intro { padding-block: clamp(28px, 4.5vw, 56px) clamp(24px, 3.5vw, 40px); }
.page-intro h1 { max-width: 20ch; }
.page-intro > p:not(.eyebrow) { max-width: 60ch; margin-top: 18px; color: var(--muted); font-size: 1.125rem; }
.breadcrumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; margin-bottom: 28px; color: var(--muted); font-size: .875rem; }
.breadcrumbs a { transition: color .15s; }
.breadcrumbs a:hover { color: var(--ink); }
.breadcrumbs > span:not([aria-current]) { color: var(--faint); }
.breadcrumbs [aria-current] { color: var(--ink-2); font-weight: 550; }

/* Shared info panel */
.info-panel {
  margin-top: 48px; padding: clamp(24px, 3.4vw, 40px); border: 1px solid var(--violet-line); border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--violet-soft), color-mix(in srgb, var(--violet-soft) 25%, var(--surface)));
}
.info-panel h2 { font-size: clamp(1.375rem, 1.2rem + .6vw, 1.75rem); }
.info-panel p { max-width: 75ch; margin: 12px 0 20px; color: var(--ink-2); }
.info-panel > a:not(.button) { display: inline-flex; align-items: center; gap: 6px; color: var(--violet-text); font-weight: 600; }
.info-panel > a:not(.button):hover { color: var(--ink); }

/* Errors */
.error-page { display: grid; justify-items: start; gap: 16px; padding-block: clamp(64px, 10vw, 144px); }
.error-page .eyebrow { margin: 0; font-variant-numeric: tabular-nums; }
.error-page h1 { max-width: 16ch; font-size: clamp(2.5rem, 1.6rem + 3.4vw, 4.5rem); }
.error-page p:not(.eyebrow) { max-width: 52ch; color: var(--muted); font-size: 1.125rem; }
.error-page .button { margin-top: 12px; }
#main > .container > .notice { margin-top: 20px; }


@media (max-width: 1120px) {
  .main-nav {
    position: absolute; top: 100%; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 2px; margin: 0;
    max-height: calc(100dvh - var(--header-h)); overflow-y: auto; overscroll-behavior: contain;
    padding: 10px var(--gutter) 20px; border-bottom: 1px solid var(--line); background: var(--surface); box-shadow: 0 28px 40px -28px rgba(12, 12, 20, .35);
  }
  .main-nav.open { display: flex; animation: menu-in .22s var(--ease); }
  .main-nav > a { height: 50px; padding: 0 12px; font-size: 1.0625rem; }
  .main-nav > a[aria-current="page"] { box-shadow: inset 0 0 0 1px var(--line); }
  .nav-trigger, .main-nav > .nav-seo-link, .header-login { display: none; }
  .nav-item { position: static; }
  .nav-menu { position: static; width: auto; padding: 0 0 6px; border: 0; border-bottom: 1px solid var(--line-soft); border-radius: 0; background: none; box-shadow: none; opacity: 1; visibility: visible; transform: none; transition: none; }
  .nav-menu::before { display: none; }
  .nav-menu-grid { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .nav-menu-group { padding: 0; }
  .nav-group-seo { border: 0; background: none; }
  .nav-menu-group ul, .nav-menu-note { display: none; }
  .nav-menu-head { align-items: center; padding: 8px 12px; }
  .nav-menu-all { margin: 0; padding: 12px; border: 0; }
  .main-nav .nav-account-link { display: flex; justify-content: space-between; margin-top: 10px; background: var(--invert-bg); color: var(--invert-ink); font-weight: 600; }
  .main-nav .nav-account-link:hover { background: var(--invert-bg); color: var(--invert-ink); }
  .menu-toggle { display: inline-grid; }
  .header-actions { margin-left: auto; }
  .footer-top { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}
@keyframes menu-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
@media (max-width: 560px) {
  .header-cta { display: none; }
  .header-inner { gap: 12px; }
  .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 400px) {
  .footer-top { grid-template-columns: minmax(0, 1fr); gap: 28px; }
}
@media (max-width: 380px) {
  .header-inner { gap: 8px; }
  .header-actions { gap: 6px; }
  .site-header .brand { gap: 8px; font-size: 1rem; }
  .language-switch a { min-width: 30px; }
  .site-header .theme-toggle, .menu-toggle { width: 36px; height: 36px; }
}
@media (max-width: 340px) {
  .site-header .brand > span:last-child { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
}