/*
 * Storyline theme foundation
 * Original Like Girl visual system: cool glass, warm memories, native motion.
 */
:root {
  color-scheme: light dark;
  --story-accent: #e55773;
  --story-accent-strong: #c83c59;
  --story-accent-soft: #ffe7ed;
  --story-cobalt: #6078d8;
  --story-mint: #70b9ae;
  --story-ink: #20232b;
  --story-muted: #6e7380;
  --story-canvas: #f2f3f6;
  --story-surface: rgba(255, 255, 255, .74);
  --story-surface-strong: rgba(255, 255, 255, .9);
  --story-line: rgba(35, 40, 52, .1);
  --story-glint: rgba(255, 255, 255, .84);
  --story-shadow-sm: 0 8px 24px rgba(36, 40, 52, .08);
  --story-shadow-lg: 0 26px 80px rgba(36, 40, 52, .14);
  --story-radius-sm: 12px;
  --story-radius-md: 18px;
  --story-radius-lg: 28px;
  --story-radius-xl: 38px;
  --story-ease: cubic-bezier(.22, 1, .36, 1);
  --story-spring: cubic-bezier(.34, 1.56, .64, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --story-accent: #f0778e;
    --story-accent-strong: #ff9bae;
    --story-accent-soft: #412630;
    --story-cobalt: #91a4f2;
    --story-ink: #f4f3f7;
    --story-muted: #aaaeb9;
    --story-canvas: #14161b;
    --story-surface: rgba(31, 34, 42, .76);
    --story-surface-strong: rgba(38, 41, 50, .92);
    --story-line: rgba(255, 255, 255, .1);
    --story-glint: rgba(255, 255, 255, .14);
    --story-shadow-sm: 0 10px 26px rgba(0, 0, 0, .24);
    --story-shadow-lg: 0 30px 90px rgba(0, 0, 0, .38);
  }
}

html {
  background: var(--story-canvas);
  scroll-behavior: smooth;
}

body.home-modern-page,
body.inner-modern-page {
  background-color: var(--story-canvas);
  background-image:
    radial-gradient(circle at 8% 4%, color-mix(in srgb, var(--story-accent) 12%, transparent), transparent 28rem),
    radial-gradient(circle at 94% 20%, color-mix(in srgb, var(--story-cobalt) 11%, transparent), transparent 32rem),
    linear-gradient(180deg, color-mix(in srgb, var(--story-canvas) 94%, white), var(--story-canvas));
  color: var(--story-ink);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  text-rendering: optimizeLegibility;
}

body.home-modern-page::before,
body.inner-modern-page::before {
  background-image: radial-gradient(rgba(69, 74, 88, .1) .65px, transparent .65px);
  background-size: 8px 8px;
  content: "";
  inset: 0;
  opacity: .34;
  pointer-events: none;
  position: fixed;
  z-index: -1;
}

:where(.home-modern-page, .inner-modern-page) :where(a, button, input, textarea, select):focus-visible {
  outline: 3px solid color-mix(in srgb, var(--story-accent) 32%, transparent);
  outline-offset: 3px;
}

:where(.home-modern-page, .inner-modern-page) :where(button, a) {
  -webkit-tap-highlight-color: transparent;
}

:where(.home-modern-page, .inner-modern-page, .story-home-page) :where(a, button) {
  text-decoration: none;
}

/* A single, more tactile glass material shared by public pages. */
:where(.home-modern-page, .inner-modern-page) :where(
  .home-bento-card,
  .home-love-day,
  .home-plan-panel,
  .home-message-panel,
  .modern-note-card,
  .modern-article,
  .modern-photo,
  .modern-plan-item,
  .modern-message,
  .modern-message-form,
  .modern-about-frame,
  .album-card,
  .album-media-card,
  .moment-entry
) {
  background:
    linear-gradient(145deg, var(--story-glint), transparent 38%),
    var(--story-surface);
  border: 1px solid var(--story-line);
  box-shadow: var(--story-shadow-sm), inset 0 1px 0 var(--story-glint);
  -webkit-backdrop-filter: blur(22px) saturate(1.45);
  backdrop-filter: blur(22px) saturate(1.45);
}

/* Desktop header contracts after the photographic chapter leaves the viewport. */
.inner-modern-page .inner-nav,
.home-modern-page .home-nav {
  background: color-mix(in srgb, var(--story-surface-strong) 82%, transparent);
  border-bottom: 1px solid transparent;
  box-shadow: 0 1px 0 transparent;
  transition: height .45s var(--story-ease), background .3s ease, box-shadow .3s ease, border-color .3s ease;
}

.inner-modern-page .inner-nav.is-compact,
.home-modern-page .home-nav.is-compact {
  background: color-mix(in srgb, var(--story-surface-strong) 94%, transparent);
  border-bottom-color: var(--story-line);
  box-shadow: var(--story-shadow-sm);
  height: 58px;
}

.inner-modern-page .inner-nav-links,
.home-modern-page .home-island-wrapper .home-nav-links {
  background: color-mix(in srgb, var(--story-surface-strong) 74%, transparent);
  border: 1px solid var(--story-glint);
  box-shadow: var(--story-shadow-sm), inset 0 1px 0 var(--story-glint);
}

.inner-modern-page .inner-nav-links a.is-active,
.home-modern-page .home-nav-indicator {
  background: linear-gradient(135deg, color-mix(in srgb, var(--story-accent) 86%, #ff9caa), var(--story-accent-strong));
  box-shadow: 0 9px 24px color-mix(in srgb, var(--story-accent) 32%, transparent), inset 0 1px 0 rgba(255, 255, 255, .34);
}

.inner-modern-page .inner-hero {
  min-height: clamp(340px, 48vw, 500px);
  overflow: hidden;
  position: relative;
}

.inner-modern-page .inner-hero::before {
  background:
    radial-gradient(circle at 72% 35%, rgba(255, 255, 255, .19), transparent 24%),
    linear-gradient(110deg, rgba(12, 17, 25, .74), rgba(12, 17, 25, .18) 68%);
  content: "";
  inset: 0;
  pointer-events: none;
  position: absolute;
}

.inner-modern-page .inner-hero > * {
  position: relative;
  z-index: 1;
}

.inner-modern-page .inner-hero-copy > a {
  align-items: center;
  display: inline-flex;
  gap: 9px;
}

.inner-modern-page .inner-hero-copy > a::before {
  background: var(--story-accent);
  border-radius: 999px;
  box-shadow: 0 0 0 5px rgba(229, 87, 115, .17);
  content: "";
  height: 6px;
  width: 6px;
}

.inner-modern-page .inner-couple-card {
  background: linear-gradient(145deg, rgba(255, 255, 255, .24), rgba(255, 255, 255, .1));
  border: 1px solid rgba(255, 255, 255, .3);
  border-radius: var(--story-radius-lg);
  box-shadow: 0 26px 70px rgba(0, 0, 0, .18), inset 0 1px 0 rgba(255, 255, 255, .28);
}

.inner-modern-page .inner-main {
  max-width: 1140px;
  padding-top: clamp(42px, 6vw, 72px);
}

/* Mobile dock: four destinations plus an original, contextual More sheet. */
.lg-mobile-dock,
.lg-more-backdrop,
.lg-more-sheet {
  display: none;
}

.lg-more-backdrop {
  background: rgba(12, 15, 22, .34);
  inset: 0;
  opacity: 0;
  position: fixed;
  transition: opacity .28s ease;
  z-index: 2147480900;
}

.lg-more-backdrop[hidden],
.lg-more-sheet[hidden] {
  display: none !important;
}

.lg-more-sheet {
  background:
    linear-gradient(145deg, var(--story-glint), transparent 34%),
    var(--story-surface-strong);
  border: 1px solid var(--story-glint);
  border-radius: 30px 30px 0 0;
  bottom: 0;
  box-shadow: 0 -24px 80px rgba(19, 22, 31, .22), inset 0 1px 0 var(--story-glint);
  left: 0;
  padding: 10px 18px calc(24px + env(safe-area-inset-bottom));
  position: fixed;
  right: 0;
  transform: translateY(108%);
  transition: transform .5s var(--story-ease);
  z-index: 2147481000;
  -webkit-backdrop-filter: blur(28px) saturate(1.5);
  backdrop-filter: blur(28px) saturate(1.5);
}

.lg-more-sheet__handle {
  background: color-mix(in srgb, var(--story-muted) 24%, transparent);
  border-radius: 999px;
  height: 4px;
  margin: 0 auto 16px;
  width: 42px;
}

.lg-more-sheet > header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin: 0 auto 16px;
  max-width: 520px;
}

.lg-more-sheet header small {
  color: var(--story-accent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .18em;
}

.lg-more-sheet header h2 {
  color: var(--story-ink);
  font: 700 24px/1.2 "Noto Serif SC", serif;
  margin: 4px 0 0;
}

.lg-more-sheet header button {
  align-items: center;
  background: color-mix(in srgb, var(--story-muted) 9%, transparent);
  border: 1px solid var(--story-line);
  border-radius: 50%;
  color: var(--story-ink);
  display: flex;
  height: 42px;
  justify-content: center;
  padding: 0;
  width: 42px;
}

.lg-more-sheet nav {
  display: grid;
  gap: 10px;
  margin: 0 auto;
  max-width: 520px;
}

.lg-more-sheet nav a {
  align-items: center;
  background: color-mix(in srgb, var(--story-surface-strong) 78%, transparent);
  border: 1px solid var(--story-line);
  border-radius: var(--story-radius-md);
  color: var(--story-ink);
  display: grid;
  gap: 13px;
  grid-template-columns: 46px 1fr auto;
  min-height: 72px;
  padding: 10px 14px 10px 10px;
}

.lg-more-sheet nav a > i {
  align-items: center;
  background: color-mix(in srgb, var(--story-accent) 12%, transparent);
  border-radius: 14px;
  color: var(--story-accent);
  display: flex;
  font-size: 21px;
  height: 46px;
  justify-content: center;
}

.lg-more-sheet nav a span {
  display: grid;
  gap: 3px;
}

.lg-more-sheet nav a strong {
  font-size: 15px;
}

.lg-more-sheet nav a small {
  color: var(--story-muted);
  font-size: 12px;
}

.lg-more-sheet nav a > b {
  color: var(--story-muted);
  font-size: 15px;
}

.lg-more-sheet nav a.is-active {
  border-color: color-mix(in srgb, var(--story-accent) 32%, transparent);
}

html.is-lg-more-open,
html.is-lg-more-open body {
  overflow: hidden;
}

html.is-lg-more-open .lg-more-backdrop {
  opacity: 1;
}

html.is-lg-more-open .lg-more-sheet {
  transform: translateY(0);
}

@media (max-width: 640px) {
  .home-modern-page,
  .inner-modern-page {
    padding-bottom: calc(92px + env(safe-area-inset-bottom));
  }

  .home-modern-page .home-mobile-nav {
    display: none !important;
  }

  .home-modern-page .lg-mobile-dock,
  .inner-modern-page .lg-mobile-dock {
    align-items: center;
    background: color-mix(in srgb, var(--story-surface-strong) 82%, transparent);
    border: 1px solid var(--story-glint);
    border-radius: 26px;
    bottom: calc(10px + env(safe-area-inset-bottom));
    box-shadow: var(--story-shadow-lg), inset 0 1px 0 var(--story-glint);
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    left: 12px;
    padding: 6px;
    position: fixed;
    right: 12px;
    z-index: 2147480800;
    -webkit-backdrop-filter: blur(25px) saturate(1.6);
    backdrop-filter: blur(25px) saturate(1.6);
  }

  .home-modern-page .lg-mobile-dock :where(a, button),
  .inner-modern-page .lg-mobile-dock :where(a, button) {
    align-items: center;
    appearance: none;
    background: transparent;
    border: 0;
    border-radius: 19px;
    color: var(--story-muted);
    display: flex;
    flex-direction: column;
    font: 650 10px/1 system-ui, sans-serif;
    gap: 5px;
    height: 52px;
    justify-content: center;
    margin: 0;
    min-width: 0;
    padding: 0;
  }

  .home-modern-page .lg-mobile-dock :where(a, button) i,
  .inner-modern-page .lg-mobile-dock :where(a, button) i {
    font-size: 19px;
    font-style: normal;
  }

  .home-modern-page .lg-mobile-dock :where(a, button).is-active,
  .inner-modern-page .lg-mobile-dock :where(a, button).is-active {
    background: var(--story-ink);
    box-shadow: 0 10px 24px color-mix(in srgb, var(--story-ink) 25%, transparent);
    color: var(--story-canvas);
    transform: translateY(-5px);
  }

  .lg-more-backdrop,
  .lg-more-sheet {
    display: block;
  }

  .inner-modern-page .inner-hero {
    min-height: 310px;
    padding: 88px 18px 42px;
  }

  .inner-modern-page .inner-hero h1 {
    font-size: clamp(31px, 10vw, 42px);
  }

  .inner-modern-page .inner-hero p {
    font-size: 14px;
  }

  .inner-modern-page .inner-main {
    padding: 38px 16px 70px;
  }

  .home-modern-page .home-gallery:has(> .home-photo:only-child) {
    display: block;
    min-height: 0;
  }

  .home-modern-page .home-gallery > .home-photo:only-child {
    aspect-ratio: 4 / 3;
    display: block;
    min-height: 0;
  }
}

/* Progressive page transitions. Existing fetch navigation remains the fallback. */
::view-transition-old(root) {
  animation: story-fade-out .2s ease both;
}

::view-transition-new(root) {
  animation: story-rise-in .5s var(--story-ease) both;
}

@keyframes story-fade-out {
  to { filter: blur(5px); opacity: 0; transform: scale(.995); }
}

@keyframes story-rise-in {
  from { filter: blur(7px); opacity: 0; transform: translateY(12px); }
}

@media (prefers-reduced-transparency: reduce) {
  :where(.home-modern-page, .inner-modern-page) :where(
    .home-nav,
    .inner-nav,
    .lg-mobile-dock,
    .lg-more-sheet,
    .home-bento-card,
    .modern-note-card,
    .modern-message,
    .moment-entry
  ) {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    background: var(--story-surface-strong) !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .inner-nav,
  .home-nav,
  .lg-more-backdrop,
  .lg-more-sheet {
    transition-duration: 1ms !important;
  }
  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation-duration: 1ms;
  }
}

@supports not (backdrop-filter: blur(1px)) {
  .lg-mobile-dock,
  .lg-more-sheet,
  .inner-nav,
  .home-nav {
    background: var(--story-surface-strong) !important;
  }
}

.lg-toast-region {
  display: grid;
  gap: 10px;
  max-width: min(380px, calc(100vw - 28px));
  pointer-events: none;
  position: fixed;
  right: 18px;
  top: 18px;
  z-index: 2147483000;
}

.lg-toast {
  align-items: center;
  background: var(--story-surface-strong);
  border: 1px solid var(--story-glint);
  border-radius: 16px;
  box-shadow: var(--story-shadow-lg), inset 0 1px 0 var(--story-glint);
  color: var(--story-ink);
  display: grid;
  font-size: 13px;
  gap: 10px;
  grid-template-columns: 22px 1fr;
  opacity: 0;
  padding: 13px 15px;
  transform: translateY(-8px) scale(.98);
  transition: opacity .22s ease, transform .34s var(--story-ease);
  -webkit-backdrop-filter: blur(22px) saturate(1.45);
  backdrop-filter: blur(22px) saturate(1.45);
}

.lg-toast.is-visible { opacity: 1; transform: none; }
.lg-toast > i { color: var(--story-cobalt); font-size: 20px; }
.lg-toast.is-success > i { color: var(--story-mint); }
.lg-toast.is-error > i { color: var(--story-accent); }

@media (max-width: 640px) {
  .lg-toast-region { left: 14px; right: 14px; top: 12px; }
}