/* site.css - styles for the blog, beta hub and app landing pages.
   Uses the CSS variables defined in style.css (so light/dark themes just work). */

/* Google Material Symbols & Icons defaults */
.material-symbols-outlined,
.material-symbols-rounded,
.material-icons {
  font-family: 'Material Symbols Rounded', sans-serif;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  font-style: normal;
  font-size: 1.25em;
  width: 1em;
  height: 1em;
  flex-shrink: 0;
  text-transform: none;
  letter-spacing: normal;
  word-wrap: normal;
  white-space: nowrap;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
}
.material-symbols-rounded.filled,
.material-symbols-outlined.filled {
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* Sizing utilities */
.material-symbols-rounded.icon-xs { font-size: 0.88em; width: 0.88em; height: 0.88em; }
.material-symbols-rounded.icon-sm { font-size: 1.05em; width: 1.05em; height: 1.05em; }
.material-symbols-rounded.icon-md { font-size: 1.35em; width: 1.35em; height: 1.35em; }
.material-symbols-rounded.icon-lg { font-size: 1.75em; width: 1.75em; height: 1.75em; }
.material-symbols-rounded.icon-xl { font-size: 2.25em; width: 2.25em; height: 2.25em; }

.text-accent { color: var(--accent-primary) !important; }

.skip-link { position: absolute; left: -999px; top: 0; background: var(--accent-primary); color: var(--accent-text); padding: .5rem 1rem; z-index: 2000; }
.skip-link:focus { left: 0; }

.nav-links a.active { color: var(--accent-primary); }
.nav-links { display: flex; align-items: center; gap: 1rem; }
.nav-links a { display: inline-flex; align-items: center; gap: .35rem; }
.lang-switch { font-size: .85rem; border: 1px solid var(--border-strong); border-radius: var(--radius-full); padding: .15rem .65rem; display: inline-flex; align-items: center; gap: .35rem; color: var(--text-secondary); text-decoration: none; transition: all .2s ease; }
.lang-switch:hover { border-color: var(--accent-primary); color: var(--accent-primary); text-decoration: none; }

.page { padding: 7rem 0 4rem; min-height: 70vh; }
.page-narrow { max-width: 760px; margin: 0 auto; }
.page-head h1 { font-weight: 800; letter-spacing: -.02em; font-size: clamp(1.9rem, 4vw, 2.8rem); }
.page-head p.lead { color: var(--text-secondary); max-width: 60ch; }
.section-block { padding: 3.5rem 0 0; }

/* Section more links (e.g. 查看全部 App ->, 所有文章 ->) */
.section-link {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  transition: color .2s ease, transform .2s ease;
}
.section-link:hover {
  color: var(--accent-primary-hover);
  text-decoration: none;
  transform: translateX(4px);
}
.section-link .material-symbols-rounded {
  transition: transform .2s ease;
}
.section-link:hover .material-symbols-rounded {
  transform: translateX(2px);
}

/* Cards */
.card-grid { display: grid; gap: 1.1rem; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.surface-card {
  background: var(--bg-surface); border: 1px solid var(--border-subtle); border-radius: var(--radius-md);
  padding: 1.25rem; box-shadow: var(--shadow-sm); transition: border-color .2s, box-shadow .2s, transform .2s;
  color: var(--text-primary); display: block; text-decoration: none;
}
a.surface-card {
  color: var(--text-primary);
  text-decoration: none;
}
a.surface-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  color: var(--text-primary);
  text-decoration: none;
}
.surface-card h3, .surface-card h2 { font-size: 1.1rem; font-weight: 700; margin: 0 0 .35rem; transition: color .2s ease; }
a.surface-card:hover h3, a.surface-card:hover h2 { color: var(--accent-primary); }
.surface-card p { color: var(--text-secondary); margin: 0; font-size: .95rem; }
.meta { color: var(--text-muted); font-size: .85rem; display: flex; flex-wrap: wrap; gap: .4rem .9rem; align-items: center; }
.meta > * { display: inline-flex; align-items: center; gap: .3rem; }

.post-card-link {
  color: inherit;
  text-decoration: none;
  display: block;
}
.post-card-link:hover {
  color: inherit;
  text-decoration: none;
}
.post-card-link h2 {
  transition: color .2s ease;
}
.surface-card:hover .post-card-link h2,
.post-card-link:hover h2 {
  color: var(--accent-primary);
}

.back-link {
  color: var(--text-secondary);
  font-weight: 500;
  transition: color .2s ease, transform .2s ease;
  text-decoration: none;
}
.back-link:hover {
  color: var(--accent-primary);
  transform: translateX(-3px);
}

/* Chips */
.chip { display: inline-flex; align-items: center; gap: .25rem; font-size: .78rem; padding: .18rem .6rem; border-radius: var(--radius-full); background: var(--accent-subtle); color: var(--accent-primary); border: 1px solid transparent; text-decoration: none; }
a.chip:hover { border-color: var(--border-hover); }
.chip-muted { background: var(--bg-surface-subtle); color: var(--text-secondary); border-color: var(--border-subtle); }
.chip-row { display: flex; flex-wrap: wrap; gap: .4rem; }
.status-badge { display: inline-flex; align-items: center; gap: .3rem; font-size: .78rem; font-weight: 600; padding: .2rem .65rem; border-radius: var(--radius-full); background: var(--accent-subtle); color: var(--accent-primary); }
.status-badge.s-released { background: rgba(34,197,94,.12); color: #16a34a; }
.status-badge.s-coming-soon, .status-badge.s-paused { background: var(--bg-surface-subtle); color: var(--text-muted); }

/* Buttons */
.btn-install {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem; min-height: 52px;
  padding: .8rem 1.6rem; font-weight: 700; font-size: 1.05rem; border-radius: var(--radius-md);
  background: var(--accent-primary); color: var(--accent-text); border: 0; text-decoration: none;
}
.btn-install:hover, .btn-install:focus { background: var(--accent-primary-hover); color: var(--accent-text); text-decoration: none; }
.btn-ghost {
  display: inline-flex; align-items: center; gap: .5rem; min-height: 44px; padding: .55rem 1.1rem; font-weight: 600;
  border: 1px solid var(--border-strong); border-radius: var(--radius-md); color: var(--text-primary); background: transparent;
  text-decoration: none;
}
.btn-ghost:hover, .btn-ghost:focus { border-color: var(--accent-primary); color: var(--accent-primary); text-decoration: none; }
.is-placeholder { opacity: .55; pointer-events: none; border-style: dashed !important; }
.placeholder-note { font-size: .8rem; color: var(--text-muted); margin-top: .35rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: .75rem; align-items: flex-start; }
@media (max-width: 576px) { .cta-row > * { width: 100%; } .btn-install, .btn-ghost { justify-content: center; } }

/* App hero */
.app-hero { display: flex; gap: 1.5rem; align-items: center; flex-wrap: wrap; }
.app-icon { width: 96px; height: 96px; border-radius: 22px; object-fit: cover; background: var(--bg-surface-subtle); border: 1px solid var(--border-subtle); flex: none; }
.app-icon-sm { width: 56px; height: 56px; border-radius: 14px; }
.app-icon-fallback { display: grid; place-items: center; font-weight: 800; font-size: 2rem; color: var(--accent-primary); }
.app-icon-sm.app-icon-fallback { font-size: 1.3rem; }

/* Steps */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: .9rem; counter-reset: step; }
.steps li { counter-increment: step; display: flex; gap: 1rem; background: var(--bg-surface); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 1.1rem 1.25rem; }
.steps li::before { content: counter(step); flex: none; width: 2.2rem; height: 2.2rem; display: grid; place-items: center; border-radius: 50%; background: var(--accent-primary); color: var(--accent-text); font-weight: 700; }
.steps li h3 { font-size: 1.05rem; margin: 0 0 .3rem; font-weight: 700; display: flex; align-items: center; gap: .45rem; flex-wrap: wrap; }
.steps li h3 .step-icon { color: var(--accent-primary); font-size: 1.25rem; }
.steps p { margin: 0 0 .5rem; color: var(--text-secondary); font-size: .93rem; }

/* Screenshots */
.shots { display: flex; gap: .9rem; overflow-x: auto; padding-bottom: .6rem; scroll-snap-type: x mandatory; }
.shots img { height: 420px; width: auto; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); scroll-snap-align: start; background: var(--bg-surface-subtle); }
.shot-empty { border: 1px dashed var(--border-strong); border-radius: var(--radius-md); padding: 2rem; text-align: center; color: var(--text-muted); }

/* Spec table / FAQ / changelog */
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table th, .spec-table td { text-align: left; padding: .65rem .25rem; border-bottom: 1px solid var(--border-subtle); font-size: .95rem; }
.spec-table th { color: var(--text-muted); font-weight: 500; width: 40%; }
.spec-table th .material-symbols-rounded { vertical-align: -0.15em; margin-right: 0.35rem; color: var(--accent-primary); font-size: 1.1em; }
details.faq { border: 1px solid var(--border-subtle); border-radius: var(--radius-md); background: var(--bg-surface); padding: .85rem 1.1rem; margin-bottom: .6rem; transition: border-color .2s ease; }
details.faq summary { cursor: pointer; font-weight: 600; display: flex; align-items: center; justify-content: space-between; list-style: none; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq .faq-arrow { color: var(--text-muted); transition: transform .25s ease, color .25s ease; font-size: 1.35rem; }
details.faq[open] { border-color: var(--border-hover); }
details.faq[open] .faq-arrow { transform: rotate(180deg); color: var(--accent-primary); }
details.faq p { margin: .6rem 0 0; color: var(--text-secondary); }
.changelog-entry { border-left: 2px solid var(--border-strong); padding: 0 0 1.2rem 1.1rem; margin-left: .3rem; position: relative; }
.changelog-entry::before { content: ''; position: absolute; left: -6px; top: .35rem; width: 10px; height: 10px; border-radius: 50%; background: var(--accent-primary); }
.changelog-entry h3 { font-size: 1.02rem; margin: 0; font-weight: 700; }
.changelog-entry ul { margin: .4rem 0 0; padding-left: 1.1rem; color: var(--text-secondary); }
h2.block-title { font-size: 1.4rem; font-weight: 800; margin: 0 0 1rem; letter-spacing: -.01em; display: flex; align-items: center; gap: .55rem; }
h2.block-title .material-symbols-rounded { font-size: 1.35rem; }

/* Blog search link */
.blog-search-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .35rem .85rem;
  border-radius: var(--radius-full);
  background: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: .88rem;
  font-weight: 500;
  text-decoration: none;
  transition: all .2s ease;
}
.blog-search-link:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: var(--accent-subtle);
}

/* Blog article */
.article-layout { display: grid; gap: 2.5rem; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 992px) { .article-layout.has-toc { grid-template-columns: minmax(0, 1fr) 240px; } }
.toc { position: sticky; top: 6rem; align-self: start; font-size: .88rem; }
.toc h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); }
.toc ul { list-style: none; padding: 0; margin: 0; border-left: 1px solid var(--border-subtle); }
.toc li a { display: block; padding: .25rem .8rem; color: var(--text-secondary); text-decoration: none; transition: color .2s ease; }
.toc li a:hover { color: var(--accent-primary); text-decoration: none; }
.toc li.depth-3 a { padding-left: 1.6rem; }
.prose { font-size: 1.05rem; line-height: 1.8; color: var(--text-primary); overflow-wrap: anywhere; }
.prose h2 { font-size: 1.5rem; font-weight: 800; margin: 2.4rem 0 .8rem; scroll-margin-top: 6rem; }
.prose h3 { font-size: 1.2rem; font-weight: 700; margin: 1.8rem 0 .6rem; scroll-margin-top: 6rem; }
.prose a { color: var(--accent-primary); text-decoration: none; font-weight: 600; transition: color .2s ease, opacity .2s ease; }
.prose a:hover { color: var(--accent-primary-hover); text-decoration: none; }
.prose img { max-width: 100%; height: auto; border-radius: var(--radius-md); }
.prose blockquote { border-left: 3px solid var(--accent-primary); margin: 1.2rem 0; padding: .2rem 1rem; color: var(--text-secondary); background: var(--accent-subtle); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.prose :not(pre) > code { background: var(--bg-surface-subtle); border: 1px solid var(--border-subtle); padding: .1rem .4rem; border-radius: 6px; font-size: .88em; }
.prose pre { padding: 1rem 1.1rem; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); overflow-x: auto; font-size: .88rem; line-height: 1.6; }
.prose table { width: 100%; border-collapse: collapse; margin: 1rem 0; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--border-subtle); padding: .5rem .75rem; }
/* Shiki dual-theme switching with the site's theme attribute */
[data-bs-theme='light'] .astro-code, [data-bs-theme='light'] .astro-code span { color: var(--shiki-light) !important; background-color: var(--shiki-light-bg) !important; }
[data-bs-theme='dark'] .astro-code, [data-bs-theme='dark'] .astro-code span { color: var(--shiki-dark) !important; background-color: var(--shiki-dark-bg) !important; }

.pagination-nav { display: flex; justify-content: space-between; gap: 1rem; margin-top: 2rem; }
.pagination-nav a { text-decoration: none; }
.search-box { width: 100%; }

/* Pagefind search UI overrides */
.pagefind-ui a,
.pagefind-ui a:hover,
.pagefind-ui .pagefind-ui__result-link,
.pagefind-ui .pagefind-ui__result-link:hover,
.pagefind-ui .pagefind-ui__search-clear {
  text-decoration: none !important;
}
.site-footer .footer-links { display: flex; gap: 1.2rem; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

svg.material-symbols-rounded { width: 1em; height: 1em; flex-shrink: 0; fill: currentColor; }

/* ==========================================================================
   Navigation Bar & Google Photos Style Mobile Navigation Drawer
   ========================================================================== */
.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-hamburger-btn,
.nav-icon-btn {
  background: transparent;
  border: none;
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.15s ease, color 0.2s ease;
}
.nav-hamburger-btn:hover,
.nav-icon-btn:hover {
  background: var(--bg-surface-subtle);
  color: var(--accent-primary);
  text-decoration: none;
}
.nav-hamburger-btn:active,
.nav-icon-btn:active {
  transform: scale(0.92);
}
.nav-hamburger-btn .material-symbols-rounded,
.nav-icon-btn .material-symbols-rounded {
  font-size: 1.5rem;
}

/* Material 3 / Google Photos Drawer Backdrop */
.nav-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1040;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.2, 0, 0, 1);
}
.nav-drawer-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

/* Material 3 Navigation Drawer */
.nav-drawer {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  width: min(320px, 82vw);
  background: var(--bg-surface);
  border-radius: 0 28px 28px 0;
  box-shadow: 6px 0 36px rgba(0, 0, 0, 0.5);
  z-index: 1050;
  transform: translateX(-100%);
  transition: transform 0.3s cubic-bezier(0.2, 0, 0, 1);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  border-right: 1px solid var(--border-subtle);
}
.nav-drawer.is-open {
  transform: translateX(0);
}

.nav-drawer-header {
  padding: 1.25rem 1.25rem 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-drawer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.nav-drawer-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.nav-drawer-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s ease, color 0.2s ease;
}
.nav-drawer-close:hover {
  background: var(--bg-surface-subtle);
  color: var(--text-primary);
}

.nav-drawer-body {
  padding: 0.5rem 0.75rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.nav-drawer-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

/* Google Photos rounded pill active item */
.nav-drawer-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  height: 50px;
  padding: 0 1.25rem;
  border-radius: var(--radius-full);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: background 0.2s ease, color 0.2s ease;
}
.nav-drawer-item .material-symbols-rounded,
.nav-drawer-item i {
  font-size: 1.35rem;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}
.nav-drawer-item:hover {
  background: var(--bg-surface-subtle);
  color: var(--text-primary);
  text-decoration: none;
}
.nav-drawer-item.active {
  background: var(--accent-subtle);
  color: var(--accent-primary);
  font-weight: 700;
}
.nav-drawer-item.active .material-symbols-rounded,
.nav-drawer-item.active i {
  color: var(--accent-primary);
}

.nav-drawer-divider {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: 1rem 0.5rem;
}

.nav-drawer-secondary {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}