/* Shared visual language for the five public website routes. App campaigns do
   not load this layer. Reader layout is deliberately isolated in reading-ui.css. */
:is(.home-page, .document-page) {
  --paper: #eaf2f1; --paper-deep: #d5e5e5; --ink: #233e45;
  --muted: #546e72; --accent: #315e65; --line: #315e652c;
  --rust: #416c72; --rust-strong: #2c5860; --surface: #ffffffb8;
  --sea-deep: #234a52; --sand: #f4efe4; --terracotta: #aa6248;
  --coastal-press: 110ms ease-out;
  --nav-wordmark-width: 168px;
}
/* One responsive wordmark size for every shared page header. */
.home-page .nav .brand-link { width: var(--nav-wordmark-width); }
.document-page .brand .coastal-wordmark { width: var(--nav-wordmark-width); height: auto; }
@media (max-width: 1000px) {
  :is(.home-page, .document-page) { --nav-wordmark-width: 144px; }
}
@media (max-width: 600px) {
  :is(.home-page, .document-page) { --nav-wordmark-width: 136px; }
}
:is(.home-page, .document-page) :is(a, button, summary):focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
/* Action labels and their icons form one centered group. */
:is(.home-page, .document-page) :is(.download-button, .support-action, .contact-link, .contact-actions a, .nav-download, .story-controls button, .reading-search-close, .guide-reader-mode, .guide-reader-close, .guide-reader-controls button) {
  display: inline-flex; align-items: center; justify-content: center; text-align: center; gap: 10px;
}
.home-page .download-button > span { margin-inline: 0; text-align: center; }
.home-page .download-button > svg { flex-shrink: 0; }
.home-page .mix-reset > span { padding-inline: 3.5cqw; }
.home-page .mix-reset svg { position: static; translate: none; flex-shrink: 0; }
.document-page .guide-reader-mode { padding-inline: 8px; }
:is(.home-page, .document-page) :is(.language-menu > summary, .site-menu-toggle) {
  min-height: 44px; padding-inline: 10px; border-radius: 10px;
  transition: background 160ms ease, scale var(--coastal-press);
}
:is(.home-page, .document-page) :is(.language-menu, .site-navigation)[open] > summary { background: var(--paper-deep); }
:is(.home-page, .document-page) .language-options { border-radius: 12px; box-shadow: 0 12px 30px -12px #233e4533; }
:is(.home-page, .document-page) :is(.home-menu-links, .site-menu-links) a { text-underline-offset: 7px; text-decoration-thickness: 1px; }
:is(.home-page, .document-page) :is(.language-menu > summary, .site-menu-toggle, .download-button, .story-controls button):active { scale: .97; }
.document-page { background: var(--paper); }
.document-page .site-header { background: var(--paper); backdrop-filter: none; border-bottom-color: var(--line); }
.document-page .brand .coastal-wordmark { border-radius: 0; object-fit: contain; filter: brightness(0) saturate(100%) opacity(.82); }
.document-page .site-footer { border-top: 1px solid var(--line); color: var(--muted); background: var(--paper); }
/* The native App already owns its title and back button. */
html.homadebar-app .document-page .site-header { display: none; }
html.homadebar-app .document-page { padding-top: 0; }
html.homadebar-app .document-page .site-footer { padding-bottom: max(24px, env(safe-area-inset-bottom)); }

/* Contact is an open studio wall: one illustration and three numbered routes. */
.contact-page .page { max-width: 1180px; width: calc(100% - 96px); padding-block: 60px 90px; }
.contact-page .content { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: 42px; }
.contact-page .contact-hero { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 44px; padding: 0 0 58px; }
.contact-page .contact-hero h1 { font-size: clamp(36px, 5vw, 64px); line-height: 1.2; letter-spacing: -.04em; margin: 0 0 24px; }
.contact-page .contact-hero .lede { margin: 0; max-width: 470px; font-size: 17px; line-height: 1.9; }
.contact-page .coastal-scene { display: block; width: 100%; max-width: 440px; height: auto; justify-self: center; }
.contact-page .contact-channel { position: relative; display: flex; flex-direction: column; align-items: flex-start; padding: 34px 0 38px; border-top: 1px solid var(--line); }
/* Stretch the columns equally, then anchor their actions to the same baseline. */
.contact-page .contact-channel > :is(.contact-actions, .contact-link) { margin-top: auto; }
.contact-page .contact-channel > .contact-actions { padding-top: 20px; }
.contact-page .channel-number { display: block; margin-bottom: 22px; color: var(--terracotta); font: 12px var(--font-ui); letter-spacing: .12em; }
.contact-page .contact-channel h2 { margin: 0 0 18px; font-size: 25px; line-height: 1.4; }
.contact-page .contact-channel p { font-size: 15px; line-height: 1.85; margin-bottom: 22px; }
.contact-page .contact-channel .channel-pending { color: var(--muted); font-size: 13px; border-left: 2px solid var(--line); padding-left: 12px; }
.contact-page .contact-help { grid-column: 1 / -1; border-top: 1px solid var(--line); padding: 38px 0 0; margin-top: 24px; display: grid; grid-template-columns: 1fr 1fr; column-gap: 44px; }
.contact-page .contact-help h2 { margin: 0; font-size: 23px; }
.contact-page .contact-help p { grid-column: 1; font-size: 15px; }
.contact-page .contact-help .contact-actions { grid-column: 2; grid-row: 1 / 3; align-self: center; justify-content: flex-end; }
.contact-page :is(.contact-link, .contact-actions a, .support-action) { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 44px; padding: 9px 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink); font: 500 14px/1.5 var(--font-ui); text-decoration: none; cursor: pointer; transition: background 160ms ease, border-color 160ms ease, scale var(--coastal-press); }
:root:lang(zh) .contact-page .contact-channel :is(.support-action, .contact-link) { width: 144px; max-width: 100%; height: 44px; }
.contact-page .contact-link span { transition: translate 160ms ease; }
.contact-page .support-email { display: inline-block; min-height: 44px; overflow-wrap: anywhere; font-size: 16px; }
.contact-page :is(.contact-link, .contact-actions a, .support-action):active { scale: .97; }
@media (hover: hover) {
  :is(.home-page, .document-page) :is(.language-menu > summary, .site-menu-toggle):hover { background: var(--paper-deep); }
  :is(.home-page, .document-page) :is(.home-menu-links, .site-menu-links) a:hover { text-decoration: underline; }
  .contact-page :is(.contact-link, .contact-actions a, .support-action):hover { background: var(--paper-deep); border-color: var(--accent); }
  .contact-page .contact-link:hover span { translate: 2px -2px; }
}
@media (hover: none) { .home-page .download-button:hover { transform: none; } }
@media (max-width: 900px) {
  .document-page .site-header { position: relative; }
  .contact-page .page { width: calc(100% - 48px); padding-top: 36px; }
  .contact-page .content { column-gap: 24px; }
  .contact-page .contact-hero { gap: 20px; }
}
@media (max-width: 600px) {
  .contact-page .content { display: block; }
  .contact-page .contact-hero { grid-template-columns: 1fr; gap: 8px; padding-bottom: 24px; }
  .contact-page .contact-hero h1 { font-size: 40px; margin-bottom: 20px; }
  .contact-page .contact-hero .lede { font-size: 16px; }
  .contact-page .coastal-scene { width: min(88vw, 360px); }
  .contact-page .contact-channel { padding: 28px 0 28px 38px; }
  .contact-page .channel-number { position: absolute; top: 34px; left: 0; }
  .contact-page .contact-help { display: block; margin-top: 0; padding-top: 30px; }
  .contact-page .contact-help .contact-actions { justify-content: flex-start; }
}
@media (prefers-color-scheme: dark) {
  :is(.home-page, .document-page) { --paper: #152c32; --paper-deep: #28464d; --ink: #e5eeea; --muted: #a5bec0; --accent: #b4d1d3; --line: #8eb4b633; --rust: #c5deda; --rust-strong: #b4d1d3; --surface: #244047; --sea-deep: #18363e; --sand: #2c3432; --terracotta: #d99f80; }
  .document-page .brand .coastal-wordmark { filter: brightness(0) invert(1) opacity(.88); }
}
@media (prefers-reduced-motion: reduce) {
  :is(.home-page, .document-page) *, :is(.home-page, .document-page) *::before, :is(.home-page, .document-page) *::after { transition: none !important; animation: none !important; }
  :is(.home-page, .document-page) :is(a, button, summary):active { scale: 1; }
}
@media (forced-colors: active) {
}
@media print { .home-page .closing, .home-page > footer { background: white; color: black; } }