/* ui-v3.css
   Layer-on visual upgrade for the anniversary site.
   All textures and effects are CSS-only; no image assets are touched. */

:root {
  --v3-paper: #fffdf7;
  --v3-paper-warm: #fff8e9;
  --v3-ink: #27313a;
  --v3-ink-soft: rgba(39, 49, 58, .62);
  --v3-coral: #ff8e71;
  --v3-coral-deep: #ff6f5a;
  --v3-sky: #70c2de;
  --v3-sky-soft: #d9f0f6;
  --v3-yellow: #f2c64d;
  --v3-green: #587d35;
  --v3-line: rgba(39, 49, 58, .14);
  --v3-line-strong: rgba(39, 49, 58, .24);
  --v3-shadow: 8px 8px 0 rgba(39, 49, 58, .14);
  --v3-radius-sm: 10px;
  --v3-radius-md: 14px;
  --v3-radius-lg: 22px;
  --v3-radius-pill: 999px;
  --v3-scroll-progress: 0;
  --v3-page-in: 0;
}

html {
  scrollbar-color: var(--v3-coral) var(--v3-paper);
  scrollbar-width: thin;
}

body::-webkit-scrollbar {
  width: 12px;
}

body::-webkit-scrollbar-track {
  background: var(--v3-paper-warm);
}

body::-webkit-scrollbar-thumb {
  border: 3px solid var(--v3-paper-warm);
  border-radius: var(--v3-radius-pill);
  background: linear-gradient(var(--v3-coral), var(--v3-sky));
}

::selection {
  color: var(--v3-ink);
  background: var(--v3-yellow);
}

:focus-visible {
  outline: 3px solid var(--v3-coral);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Global scroll progress and back-to-top chrome. */
.ui3-scrollbar {
  position: fixed;
  z-index: 1200;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--v3-yellow), var(--v3-coral) 46%, var(--v3-sky));
  box-shadow: 0 1px 8px rgba(255, 142, 113, .38);
  pointer-events: none;
  transform: scaleX(var(--v3-scroll-progress));
  transform-origin: left center;
}

.ui3-backtop {
  position: fixed;
  z-index: 1100;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  display: grid;
  width: 52px;
  height: 52px;
  padding: 0;
  border: 2px solid var(--v3-ink);
  border-radius: 50%;
  color: var(--v3-ink);
  background: var(--v3-paper);
  box-shadow: 4px 4px 0 var(--v3-yellow), 0 14px 34px rgba(39, 49, 58, .16);
  place-items: center;
  opacity: 0;
  visibility: hidden;
  cursor: pointer;
  transform: translateY(14px) rotate(8deg) scale(.92);
  transition: opacity .3s ease, visibility .3s ease, transform .35s var(--ease, ease), box-shadow .3s ease, background .3s ease;
}

.ui3-backtop svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.2;
}

.ui3-backtop.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) rotate(0) scale(1);
}

.ui3-backtop:hover,
.ui3-backtop:focus-visible {
  color: #fff;
  background: var(--v3-coral);
  box-shadow: 6px 6px 0 var(--v3-ink), 0 20px 44px rgba(39, 49, 58, .2);
  transform: translateY(-3px) rotate(-4deg);
}

html.requires-entry .ui3-scrollbar,
html.requires-entry .ui3-backtop {
  opacity: 0;
  visibility: hidden;
}

/* Unified top navigation: frosted paper with a quiet grounding line. */
body.line-puppy-theme .memory-mark {
  height: 76px;
  background: linear-gradient(180deg, rgba(255, 253, 247, .86), rgba(255, 249, 238, .5));
  border-bottom: 1px solid rgba(39, 49, 58, .08);
  box-shadow: 0 10px 30px rgba(39, 49, 58, .04);
  backdrop-filter: blur(18px) saturate(1.35);
  -webkit-backdrop-filter: blur(18px) saturate(1.35);
  transition: background .3s ease, box-shadow .3s ease;
}

body.line-puppy-theme.is-scrolled .memory-mark {
  background: rgba(255, 253, 247, .92);
  box-shadow: 0 18px 46px rgba(39, 49, 58, .1);
}

.standalone-page .global-nav {
  background: rgba(255, 253, 247, .82);
  border-bottom: 1px solid rgba(39, 49, 58, .1);
  box-shadow: none;
  backdrop-filter: blur(18px) saturate(1.35);
  -webkit-backdrop-filter: blur(18px) saturate(1.35);
  transition: background .3s ease, box-shadow .3s ease;
}

.standalone-page.is-scrolled .global-nav {
  background: rgba(255, 253, 247, .94);
  box-shadow: 0 18px 46px rgba(39, 49, 58, .09);
}

.memory-mark__links a,
.global-nav__links a {
  position: relative;
  padding: 9px 13px;
  border-radius: var(--v3-radius-pill);
  color: var(--v3-ink);
  font: 800 10px/1 var(--shared-font, var(--sans));
  text-decoration: none;
  white-space: nowrap;
  transition: color .25s ease, background .25s ease, transform .25s ease, box-shadow .25s ease;
}

.memory-mark__links a:hover,
.memory-mark__links a:focus-visible,
.global-nav__links a:hover,
.global-nav__links a:focus-visible {
  color: var(--v3-coral-deep);
  background: rgba(255, 142, 113, .13);
  transform: translateY(-1px);
}

.memory-mark__links a[aria-current="page"],
.global-nav__links a[aria-current="page"] {
  color: #fff;
  background: var(--v3-ink);
  box-shadow: 0 5px 16px rgba(39, 49, 58, .2);
}

.global-nav__brand-mark {
  background: linear-gradient(145deg, #fff, var(--v3-paper-warm));
  box-shadow: 3px 3px 0 var(--v3-yellow), 0 0 0 5px rgba(39, 49, 58, .05);
}

.global-nav__menu summary {
  border-radius: var(--v3-radius-md);
  background: var(--v3-paper);
  box-shadow: 3px 3px 0 var(--v3-sky);
  transition: transform .25s ease, box-shadow .25s ease;
}

.global-nav__menu summary:hover {
  box-shadow: 5px 5px 0 var(--v3-coral);
  transform: translate(-1px, -1px);
}

.global-nav__menu-panel {
  border-radius: var(--v3-radius-md);
  background: rgba(255, 253, 247, .96);
  box-shadow: 8px 8px 0 rgba(39, 49, 58, .12), 0 24px 60px rgba(39, 49, 58, .16);
  backdrop-filter: blur(14px);
}

.global-nav__menu-panel a {
  border-radius: var(--v3-radius-sm);
}

.global-nav__menu-panel a[aria-current="page"] {
  color: #fff;
  background: var(--v3-ink);
}

/* Countdown becomes a compact, tactile "ticket". */
.global-countdown {
  position: relative;
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-md);
  background: linear-gradient(180deg, rgba(255, 255, 255, .94), rgba(255, 249, 238, .88));
  box-shadow: 5px 5px 0 var(--v3-sky), 10px 10px 0 rgba(39, 49, 58, .06);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: width .35s ease, min-height .35s ease, padding .35s ease, box-shadow .35s ease, transform .35s var(--ease, ease), background-color .35s ease;
}

.global-countdown::after {
  position: absolute;
  top: -2px;
  right: 14px;
  left: 14px;
  height: 3px;
  border-radius: 0 0 4px 4px;
  content: '';
  background: linear-gradient(90deg, var(--v3-yellow), var(--v3-coral) 48%, var(--v3-sky));
  opacity: .9;
  pointer-events: none;
}

.global-countdown__event {
  color: var(--v3-green);
  font-weight: 900;
  letter-spacing: .02em;
}

.global-countdown__units b {
  color: var(--v3-ink);
}

.global-countdown__units i {
  color: var(--v3-green);
}

.global-countdown:not(.global-countdown--home):hover,
.global-countdown:not(.global-countdown--home):focus-visible {
  background: #fff;
  box-shadow: 6px 6px 0 var(--v3-coral);
  transform: translateY(-2px) rotate(-.4deg);
}

body.line-puppy-theme .global-countdown--home:hover,
body.line-puppy-theme .global-countdown--home:focus-visible {
  background: #fff;
  box-shadow: 8px 8px 0 var(--v3-coral), 14px 14px 0 rgba(39, 49, 58, .06);
  transform: translateX(-50%) rotate(-1deg);
}

.motion-toggle {
  border-radius: var(--v3-radius-pill);
  box-shadow: 3px 3px 0 var(--v3-sky);
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
}

.motion-toggle:hover {
  transform: translateY(-2px);
  box-shadow: 5px 5px 0 var(--v3-coral);
}

.motion-toggle[aria-pressed="true"] {
  color: #fff;
  background: var(--v3-ink);
}

.motion-toggle[aria-pressed="true"]:hover {
  color: #fff;
  background: var(--v3-coral-deep);
}

.memory-mark__seal {
  border-radius: 50%;
  background: linear-gradient(145deg, #fff, var(--v3-paper-warm));
  box-shadow: 3px 3px 0 var(--v3-yellow), 0 10px 24px rgba(39, 49, 58, .08);
  transition: transform .4s var(--ease, ease), box-shadow .3s ease, color .3s ease, border-color .3s ease;
}

.memory-mark__seal:hover {
  box-shadow: 5px 5px 0 var(--v3-coral), 0 14px 30px rgba(39, 49, 58, .1);
}

.photo-counter {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-pill);
  background: var(--v3-paper);
  box-shadow: 3px 3px 0 var(--v3-yellow);
}

.photo-counter b {
  color: var(--v3-coral-deep);
}

/* Entry gate: warmer paper, softer fields, clearer action. */
body.line-puppy-theme .entry-gate {
  background-color: #fff4c9;
  background-image:
    linear-gradient(180deg, rgba(255, 253, 247, .1), rgba(237, 247, 248, .16)),
    repeating-linear-gradient(0deg, transparent 0 27px, rgba(39, 49, 58, .035) 27px 28px),
    repeating-linear-gradient(90deg, transparent 0 27px, rgba(39, 49, 58, .035) 27px 28px);
}

body.line-puppy-theme .entry-gate__aurora {
  opacity: .66;
  background: linear-gradient(140deg, rgba(139, 218, 238, .64), rgba(255, 253, 247, .08) 38%, rgba(250, 210, 88, .58) 72%, rgba(255, 142, 113, .3));
  filter: none;
}

body.line-puppy-theme .entry-login {
  border-radius: var(--v3-radius-lg);
  background: linear-gradient(155deg, rgba(255, 255, 255, .96), rgba(255, 249, 232, .92));
  box-shadow: 10px 10px 0 var(--v3-yellow), 20px 20px 0 rgba(112, 194, 222, .2), 0 42px 110px rgba(39, 49, 58, .22);
}

body.line-puppy-theme .entry-login__seal {
  border-radius: 50%;
  background: linear-gradient(145deg, #fff, var(--v3-paper-warm));
  box-shadow: 4px 4px 0 var(--v3-coral), 0 14px 30px rgba(39, 49, 58, .12);
}

body.line-puppy-theme .entry-field > span:first-child {
  padding-left: 4px;
}

body.line-puppy-theme .entry-field input {
  border-radius: var(--v3-radius-sm);
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(39, 49, 58, .08), 0 8px 22px rgba(39, 49, 58, .04);
  transition: border-color .3s ease, box-shadow .3s ease, background .3s ease, transform .3s ease;
}

body.line-puppy-theme .entry-field input:focus {
  border-color: var(--v3-ink);
  background: #fff;
  box-shadow: 4px 4px 0 var(--v3-sky), inset 0 0 0 1px var(--v3-ink);
  transform: translateY(-2px);
}

body.line-puppy-theme .entry-login__submit {
  border-radius: var(--v3-radius-md);
  background: linear-gradient(135deg, var(--v3-yellow), var(--v3-coral));
  box-shadow: 5px 5px 0 var(--v3-ink), 0 18px 36px rgba(255, 142, 113, .24);
  transition: padding .4s var(--ease, ease), box-shadow .3s ease, transform .3s ease, background .3s ease, color .3s ease;
}

body.line-puppy-theme .entry-login__submit:hover,
body.line-puppy-theme .entry-login__submit:focus-visible {
  padding: 15px 22px;
  color: var(--v3-ink);
  border-color: var(--v3-ink);
  background: linear-gradient(135deg, #ffd98a, #ffbd9d);
  box-shadow: 7px 7px 0 var(--v3-ink), 0 22px 44px rgba(255, 142, 113, .3);
  transform: translateY(-3px);
}

body.line-puppy-theme .entry-login__status {
  color: var(--v3-coral-deep);
  font-weight: 800;
}

/* Home film: clean grid, better chapter and copy presence. */
body.line-puppy-theme .film__sticky {
  background-color: #fff9ee;
  background-image:
    radial-gradient(rgba(39, 49, 58, .12) 1px, transparent 1.4px),
    repeating-linear-gradient(90deg, transparent 0 31px, rgba(39, 49, 58, .03) 31px 32px);
  background-size: 19px 19px, auto;
}

body.line-puppy-theme .film__chapter-count {
  align-items: center;
  padding: 9px 12px 9px 14px;
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-pill);
  background: rgba(255, 253, 247, .82);
  box-shadow: 4px 4px 0 var(--v3-sky);
}

body.line-puppy-theme .film__progress {
  width: 4px;
  border-radius: var(--v3-radius-pill);
  background: rgba(39, 49, 58, .14);
}

body.line-puppy-theme .film__progress span {
  border-radius: inherit;
  background: linear-gradient(var(--v3-coral), var(--v3-yellow));
  box-shadow: 0 0 14px rgba(255, 142, 113, .5);
}

.line-puppy-theme .scene-copy__date,
.line-puppy-theme .scene-copy__index,
.line-puppy-theme .scene-copy__whisper {
  width: fit-content;
  padding: 7px 12px;
  border: 2px solid rgba(39, 49, 58, .16);
  border-radius: var(--v3-radius-pill);
  background: rgba(255, 253, 247, .74);
  box-shadow: 3px 3px 0 rgba(39, 49, 58, .08);
}

.line-puppy-theme .scene-copy h1 em,
.line-puppy-theme .scene-copy h2 em,
.line-puppy-theme .scene-copy h2 i {
  color: var(--v3-coral-deep);
}

body.line-puppy-theme .film__scroll-cue {
  padding: 9px 13px;
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-pill);
  background: rgba(255, 253, 247, .78);
  box-shadow: 3px 3px 0 var(--v3-yellow);
}

/* Photo slots: rounded frames with a stronger paper feel. */
.line-puppy-theme .photo-slot {
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-md);
  background: linear-gradient(150deg, var(--slot-a, #fffdf7), var(--slot-b, #fff1bd) 48%, var(--slot-c, #ccecf4));
  box-shadow: 8px 8px 0 rgba(39, 49, 58, .14), 0 26px 54px rgba(39, 49, 58, .1);
}

.line-puppy-theme .photo-slot::after {
  border: 2px solid rgba(39, 49, 58, .82);
  border-radius: calc(var(--v3-radius-md) - 4px);
}

.line-puppy-theme .photo-slot:hover {
  filter: saturate(1.08) brightness(1.02);
}

.line-puppy-theme .photo-slot__placeholder strong {
  letter-spacing: -.01em;
}

.line-puppy-theme .photo-slot__placeholder small {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.line-puppy-theme .photo-slot__placeholder small::before {
  width: 18px;
  height: 1px;
  content: '';
  background: var(--v3-coral);
}

.line-puppy-theme .photo-slot__view {
  border-radius: 50%;
  box-shadow: 2px 2px 0 var(--v3-yellow), 0 8px 18px rgba(39, 49, 58, .1);
  transition: transform .3s var(--ease, ease), box-shadow .3s ease, background .3s ease, color .3s ease, opacity .25s ease;
}

.line-puppy-theme .photo-slot__view:hover {
  color: #fff;
  background: var(--v3-coral);
  box-shadow: 4px 4px 0 var(--v3-ink);
  transform: translateY(-2px) rotate(-4deg);
}

/* Atlas: dot grid, sticker notes, softer hover depth. */
body.line-puppy-theme .atlas {
  background-color: #ddf3e5;
  background-image:
    radial-gradient(rgba(39, 49, 58, .12) 1px, transparent 1.4px),
    repeating-linear-gradient(90deg, transparent 0 31px, rgba(39, 49, 58, .035) 31px 32px);
  background-size: 19px 19px, auto;
}

body.line-puppy-theme .atlas__margin-note {
  padding: 14px 16px 16px 22px;
  border: 2px dashed rgba(39, 49, 58, .26);
  border-radius: var(--v3-radius-md);
  background: rgba(255, 253, 247, .54);
  box-shadow: 6px 6px 0 rgba(39, 49, 58, .08);
}

.line-puppy-theme .atlas__intro h2 em,
.line-puppy-theme .atlas__afterword span i {
  background: linear-gradient(100deg, var(--v3-coral-deep), var(--v3-yellow) 70%, var(--v3-green));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.line-puppy-theme .atlas__little-line {
  width: fit-content;
  padding: 10px 14px;
  border: 2px dashed rgba(39, 49, 58, .2);
  border-radius: var(--v3-radius-md);
  background: rgba(255, 253, 247, .6);
  box-shadow: 4px 4px 0 rgba(39, 49, 58, .06);
}

.line-puppy-theme .atlas__afterword {
  width: fit-content;
  max-width: min(600px, 76%);
  margin-right: 8%;
  padding: 24px 28px;
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-lg);
  background: rgba(255, 253, 247, .8);
  box-shadow: 10px 10px 0 var(--v3-yellow), 0 30px 70px rgba(39, 49, 58, .12);
}

.line-puppy-theme .atlas-photo:hover {
  filter: saturate(1.12) brightness(1.03);
}

.line-puppy-theme .atlas-photo.is-visible:hover {
  box-shadow: 14px 14px 0 rgba(39, 49, 58, .16), 0 42px 90px rgba(39, 49, 58, .18);
}

/* Reel: film-strip rhythm with a cleaner meter. */
body.line-puppy-theme .photo-reel__sticky {
  background-image: repeating-linear-gradient(0deg, transparent 0 38px, rgba(39, 49, 58, .05) 38px 40px);
}

body.line-puppy-theme .photo-reel__track::before,
body.line-puppy-theme .photo-reel__track::after {
  position: absolute;
  right: 0;
  left: 0;
  height: 14px;
  content: '';
  background-image: radial-gradient(circle, var(--v3-ink) 2.4px, transparent 3px);
  background-position: center;
  background-repeat: repeat-x;
  background-size: 20px 10px;
  opacity: .72;
  pointer-events: none;
}

body.line-puppy-theme .photo-reel__track::before {
  top: -26px;
}

body.line-puppy-theme .photo-reel__track::after {
  bottom: -26px;
}

.line-puppy-theme .reel-frame {
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-md);
  background: #fffdf7;
  box-shadow: 8px 8px 0 rgba(39, 49, 58, .16), 0 34px 76px rgba(39, 49, 58, .18);
}

.line-puppy-theme .reel-frame:hover {
  filter: saturate(1.1) brightness(1.03);
  box-shadow: 12px 12px 0 rgba(39, 49, 58, .18), 0 48px 100px rgba(39, 49, 58, .2);
}

body.line-puppy-theme .photo-reel__meter {
  padding: 9px 13px;
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-pill);
  background: rgba(255, 253, 247, .78);
  box-shadow: 3px 3px 0 var(--v3-sky);
}

body.line-puppy-theme .photo-reel__meter span {
  height: 3px;
  border-radius: var(--v3-radius-pill);
  background: linear-gradient(90deg, var(--v3-coral) calc(var(--reel-progress, 0) * 100%), rgba(39, 49, 58, .16) 0);
}

/* Constellation: layered sketchbook orbit. */
body.line-puppy-theme .constellation__sticky {
  background-image:
    radial-gradient(rgba(39, 49, 58, .1) 1px, transparent 1.4px),
    repeating-linear-gradient(135deg, transparent 0 24px, rgba(39, 49, 58, .035) 24px 25px);
  background-size: 18px 18px, auto;
}

body.line-puppy-theme .constellation__core {
  border: 2px dashed rgba(39, 49, 58, .3);
  background: rgba(255, 253, 247, .3);
  box-shadow: inset 0 0 0 14px rgba(255, 253, 247, .44), 0 0 0 10px rgba(255, 142, 113, .1);
}

body.line-puppy-theme .constellation.is-gazing .constellation__core {
  box-shadow: inset 0 0 0 18px rgba(255, 253, 247, .5), 0 0 0 16px rgba(242, 198, 77, .22);
}

.line-puppy-theme .constellation__copy h2 em {
  background: linear-gradient(100deg, var(--v3-coral-deep), var(--v3-yellow));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

body.line-puppy-theme .constellation__seal {
  padding: 13px 16px;
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-md);
  box-shadow: 4px 4px 0 var(--v3-yellow);
}

body.line-puppy-theme .constellation__touch-note {
  width: fit-content;
  padding: 8px 13px;
  border: 2px dashed rgba(39, 49, 58, .22);
  border-radius: var(--v3-radius-pill);
  background: rgba(255, 253, 247, .56);
}

/* Letter: ruled paper card with a more grounded signature. */
body.line-puppy-theme .letter-section__inside {
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-lg);
  background: linear-gradient(180deg, #fffdf7, #fff8e7);
  background-image:
    linear-gradient(180deg, rgba(255, 253, 247, .35), rgba(255, 248, 231, .6)),
    repeating-linear-gradient(180deg, transparent 0 33px, rgba(112, 194, 222, .14) 33px 34px);
  box-shadow: 14px 14px 0 rgba(39, 49, 58, .14), 0 44px 100px rgba(39, 49, 58, .14);
}

body.line-puppy-theme .letter-section__inside::before {
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-sm);
  background: linear-gradient(120deg, var(--v3-yellow), var(--v3-coral));
  box-shadow: 3px 3px 0 rgba(39, 49, 58, .16);
}

body.line-puppy-theme .letter-button {
  border-radius: var(--v3-radius-pill);
  box-shadow: 4px 4px 0 var(--v3-ink), 0 14px 30px rgba(39, 49, 58, .1);
  transition: transform .3s var(--ease, ease), box-shadow .3s ease, background .3s ease;
}

body.line-puppy-theme .letter-button:hover {
  transform: translateY(-3px);
  box-shadow: 6px 6px 0 var(--v3-ink), 0 18px 36px rgba(39, 49, 58, .12);
}

body.line-puppy-theme .letter-section__sign {
  width: fit-content;
  padding: 16px 20px;
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-md);
  background: rgba(255, 253, 247, .66);
  box-shadow: 5px 5px 0 var(--v3-yellow);
}

/* Goodnight: one final sticker-like seal. */
body.line-puppy-theme .goodnight__ring {
  border: 2px dashed rgba(39, 49, 58, .32);
  border-radius: 50%;
  background: rgba(255, 253, 247, .32);
  box-shadow: 12px 12px 0 rgba(39, 49, 58, .12);
}

body.line-puppy-theme .goodnight__button {
  border-radius: var(--v3-radius-pill);
  background: linear-gradient(135deg, var(--v3-yellow), var(--v3-coral));
  box-shadow: 5px 5px 0 var(--v3-ink), 0 18px 40px rgba(39, 49, 58, .16);
  transition: transform .3s var(--ease, ease), box-shadow .3s ease, background .3s ease;
}

body.line-puppy-theme .goodnight__button:hover {
  transform: translateY(-3px);
  box-shadow: 7px 7px 0 var(--v3-ink), 0 24px 48px rgba(39, 49, 58, .2);
}

/* Memory viewer: softer modal chrome. */
body.line-puppy-theme .memory-viewer__backdrop {
  background: rgba(39, 49, 58, .48);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

body.line-puppy-theme .memory-viewer__panel {
  border-radius: var(--v3-radius-lg);
  box-shadow: 16px 16px 0 var(--v3-yellow), 0 50px 130px rgba(39, 49, 58, .3);
}

body.line-puppy-theme .memory-viewer__close,
body.line-puppy-theme .memory-viewer__step {
  border-radius: 50%;
  box-shadow: 3px 3px 0 var(--v3-yellow), 0 10px 24px rgba(39, 49, 58, .14);
}

body.line-puppy-theme .memory-viewer__caption button {
  padding: 10px 14px;
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-pill);
  background: var(--v3-paper);
  box-shadow: 3px 3px 0 var(--v3-yellow);
}

body.line-puppy-theme .memory-viewer__caption button:hover {
  color: var(--v3-ink);
  background: var(--v3-sky-soft);
}

/* Standalone pages: notebook paper, refined shared controls. */
.standalone-page {
  background-color: #fdfaf2;
  background-image:
    radial-gradient(rgba(39, 49, 58, .08) 1px, transparent 1.4px),
    linear-gradient(180deg, rgba(255, 253, 247, .92), rgba(237, 247, 248, .72));
  background-size: 22px 22px, auto;
}

.standalone-page.ui3-ready {
  animation: ui3PageIn .45s var(--ease, ease) both;
}

@keyframes ui3PageIn {
  from {
    opacity: 0;
    transform: translateY(7px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.calendar-hero h1,
.gallery-hero h1 {
  position: relative;
  z-index: 0;
  letter-spacing: 0;
}

.calendar-hero h1::after {
  position: absolute;
  z-index: -1;
  right: -6px;
  bottom: .05em;
  left: -6px;
  height: .26em;
  border-radius: var(--v3-radius-pill);
  content: '';
  background: linear-gradient(90deg, var(--v3-yellow), var(--v3-coral) 60%, var(--v3-sky));
  opacity: .4;
}

.calendar-hero__clock {
  display: inline-flex;
  align-items: center;
  padding: 13px 18px;
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-md);
  background: var(--v3-paper);
  box-shadow: 5px 5px 0 var(--v3-yellow), 0 18px 40px rgba(39, 49, 58, .1);
}

.calendar-hero__weekday,
.gallery-hero__meta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  border: 2px dashed rgba(39, 49, 58, .22);
  border-radius: var(--v3-radius-pill);
  background: rgba(255, 253, 247, .6);
}

.calendar-hero__weekday::before,
.gallery-hero__meta::before {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  content: '';
  background: var(--v3-coral);
  box-shadow: 0 0 0 4px rgba(255, 142, 113, .16);
}

.calendar-workspace {
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-lg);
  overflow: hidden;
  background: var(--v3-paper);
  box-shadow: 10px 10px 0 rgba(39, 49, 58, .12), 0 40px 90px rgba(39, 49, 58, .1);
}

.calendar-main {
  padding: 30px 34px 38px;
}

.calendar-rail {
  padding: 30px 28px 34px;
  border-left: 2px solid var(--v3-ink);
  background: linear-gradient(180deg, #edf7f8, #fff8ec);
}

.calendar-toolbar h2 {
  position: relative;
  width: fit-content;
  padding-bottom: 10px;
}

.calendar-toolbar h2::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 4px;
  border-radius: var(--v3-radius-pill);
  content: '';
  background: linear-gradient(90deg, var(--v3-coral), var(--v3-yellow));
}

.calendar-day {
  border-radius: var(--v3-radius-sm);
  transition: background .25s ease, box-shadow .25s ease, transform .25s ease;
}

.calendar-day:hover {
  background: #eef9fb;
  box-shadow: inset 0 -3px 0 var(--v3-sky);
  transform: translateY(-2px);
}

.calendar-day[aria-pressed="true"] {
  background: #fff1e9;
  box-shadow: inset 0 0 0 2px var(--v3-ink), 0 8px 22px rgba(39, 49, 58, .08);
  transform: translateY(-2px);
}

.calendar-day.is-today .calendar-day__number {
  box-shadow: 3px 3px 0 rgba(39, 49, 58, .16);
}

.calendar-day__markers {
  gap: 5px;
}

.calendar-day__marker {
  width: 9px;
  height: 9px;
  box-shadow: 1px 1px 0 rgba(39, 49, 58, .18);
}

.calendar-rail h2 {
  position: relative;
  width: fit-content;
}

.calendar-rail h2::after {
  display: block;
  width: 100%;
  height: 4px;
  margin-top: 8px;
  border-radius: var(--v3-radius-pill);
  content: '';
  background: linear-gradient(90deg, var(--v3-coral), var(--v3-sky));
}

.calendar-selected,
.calendar-upcoming {
  display: grid;
  gap: 10px;
}

.calendar-event,
.upcoming-event {
  margin: 0;
  padding: 13px 14px;
  border: 1px solid rgba(39, 49, 58, .12);
  border-top: 0;
  border-radius: var(--v3-radius-sm);
  background: rgba(255, 253, 247, .78);
  box-shadow: 3px 3px 0 rgba(39, 49, 58, .08);
}

.calendar-legend {
  align-items: center;
}

.calendar-legend span {
  padding: 7px 11px;
  border: 1px solid rgba(39, 49, 58, .14);
  border-radius: var(--v3-radius-pill);
  background: rgba(255, 255, 255, .64);
}

.gallery-hero h1 span.gallery-hero__accent {
  background: linear-gradient(100deg, var(--v3-coral-deep), var(--v3-yellow) 62%, var(--v3-sky));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.gallery-dropzone {
  border-radius: var(--v3-radius-lg);
  background: linear-gradient(180deg, var(--v3-paper), #edf7f8);
  box-shadow: inset 0 0 0 6px rgba(255, 255, 255, .62), 0 12px 30px rgba(39, 49, 58, .05);
}

.gallery-dropzone.is-dragover {
  border-color: var(--v3-coral);
  background: #fff1eb;
  box-shadow: inset 0 0 0 8px rgba(255, 142, 113, .14), 0 18px 44px rgba(255, 142, 113, .16);
}

.gallery-toolbar {
  padding-bottom: 18px;
  border-bottom: 2px solid var(--v3-ink);
}

.gallery-wall {
  padding: 24px 0 34px;
}

.gallery-photo {
  border-radius: var(--v3-radius-md);
  box-shadow: 5px 5px 0 rgba(39, 49, 58, .12), 0 14px 30px rgba(39, 49, 58, .06);
  transition: transform .3s var(--ease, ease), box-shadow .3s ease, filter .3s ease;
}

.gallery-photo:hover {
  z-index: 2;
  filter: saturate(1.08);
  box-shadow: 10px 10px 0 rgba(39, 49, 58, .14), 0 28px 54px rgba(39, 49, 58, .16);
  transform: translateY(-5px) rotate(-.3deg) scale(1.02);
}

.gallery-photo__open img {
  transition: transform .45s var(--ease, ease);
}

.gallery-photo:hover .gallery-photo__open img {
  transform: scale(1.045);
}

.gallery-photo figcaption {
  padding-bottom: 14px;
  background: linear-gradient(transparent, rgba(39, 49, 58, .9));
}

.gallery-photo__favorite {
  border-radius: 50%;
  box-shadow: 2px 2px 0 rgba(39, 49, 58, .16);
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}

.gallery-photo__favorite:hover {
  box-shadow: 4px 4px 0 var(--v3-ink);
  transform: translateY(-2px);
}

.gallery-empty {
  padding: 24px 28px;
  border: 2px solid var(--v3-ink);
  border-bottom: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-lg);
  background: rgba(255, 253, 247, .78);
  box-shadow: 10px 10px 0 var(--v3-yellow), 0 30px 70px rgba(39, 49, 58, .1);
}

.gallery-empty img {
  border-radius: var(--v3-radius-md);
  box-shadow: 6px 6px 0 rgba(39, 49, 58, .14);
}

/* Buttons and controls across standalone pages. */
.command-button,
.icon-button,
.gallery-sort select,
.gallery-dialog input,
.gallery-dialog textarea {
  border-radius: var(--v3-radius-sm);
}

.command-button,
.icon-button {
  box-shadow: 3px 3px 0 var(--v3-sky), 0 10px 24px rgba(39, 49, 58, .06);
  transition: transform .2s var(--ease, ease), box-shadow .2s ease, background .2s ease;
}

.command-button:hover,
.command-button:focus-visible,
.icon-button:hover,
.icon-button:focus-visible {
  box-shadow: 6px 6px 0 var(--v3-coral), 0 16px 32px rgba(39, 49, 58, .1);
  transform: translate(-2px, -2px);
}

.command-button:active,
.icon-button:active {
  box-shadow: 1px 1px 0 var(--v3-sky);
  transform: translate(1px, 1px);
}

.command-button--accent {
  border-radius: var(--v3-radius-md);
  background: linear-gradient(135deg, var(--v3-coral), var(--v3-yellow));
}

.command-button--accent:hover,
.command-button--accent:focus-visible {
  background: linear-gradient(135deg, #ffbd9d, #ffd98a);
}

.segmented-control {
  gap: 4px;
  padding: 4px;
  border: 2px solid var(--v3-ink);
  border-radius: var(--v3-radius-pill);
  background: var(--v3-paper);
  box-shadow: 3px 3px 0 rgba(39, 49, 58, .1);
}

.segmented-control button {
  border-radius: var(--v3-radius-pill);
  transition: color .25s ease, background .25s ease, box-shadow .25s ease;
}

.segmented-control button[aria-pressed="true"] {
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .45);
}

.gallery-sort select {
  min-height: 34px;
  padding: 0 12px;
  border-radius: var(--v3-radius-pill);
  background: var(--v3-paper);
  box-shadow: 2px 2px 0 rgba(39, 49, 58, .1);
}

.page-status {
  width: fit-content;
  max-width: 100%;
  padding: 8px 12px;
  border-radius: var(--v3-radius-pill);
  background: rgba(39, 49, 58, .05);
}

/* Dialogs get a polished, blurrier backdrop. */
dialog {
  border-radius: var(--v3-radius-lg);
  box-shadow: 16px 16px 0 rgba(39, 49, 58, .2), 0 48px 110px rgba(39, 49, 58, .3);
}

dialog::backdrop {
  background: rgba(39, 49, 58, .5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.gallery-viewer__panel {
  overflow: hidden;
  border-radius: var(--v3-radius-lg);
}

.gallery-viewer__side {
  border-radius: 0 var(--v3-radius-lg) var(--v3-radius-lg) 0;
}

.gallery-viewer__actions button,
.gallery-dialog__actions button {
  border-radius: var(--v3-radius-sm);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.gallery-viewer__actions button:hover,
.gallery-dialog__actions button:hover {
  box-shadow: 4px 4px 0 var(--v3-sky);
  transform: translate(-1px, -1px);
}

.gallery-viewer__close,
.gallery-viewer__step {
  border-radius: 50%;
  box-shadow: 3px 3px 0 rgba(39, 49, 58, .16), 0 10px 24px rgba(39, 49, 58, .14);
}

/* Quiet mode stops the added ambient motion too. */
body.is-quiet .ui3-scrollbar,
body.is-quiet .ui3-backtop {
  animation-play-state: paused;
  transition: none;
}

body.is-quiet .global-countdown,
body.is-quiet .memory-mark__seal,
body.is-quiet .global-nav__brand-mark {
  animation-play-state: paused;
}

@media (max-width: 760px) {
  .calendar-workspace {
    border-radius: var(--v3-radius-md);
  }

  .calendar-main {
    padding: 24px 20px 28px;
  }

  .calendar-rail {
    padding: 26px 20px 30px;
    border-top: 2px solid var(--v3-ink);
    border-left: 0;
  }

  .gallery-empty {
    padding: 20px;
  }

  .line-puppy-theme .atlas__afterword {
    width: 92%;
    max-width: none;
    margin-right: 0;
  }

  .line-puppy-theme .atlas__little-line {
    width: auto;
  }

  body.line-puppy-theme .entry-login {
    box-shadow: 7px 7px 0 var(--v3-yellow), 0 30px 80px rgba(39, 49, 58, .18);
  }
}

@media (max-width: 620px) {
  body.line-puppy-theme .memory-mark {
    height: 66px;
    padding: 0 18px;
  }

  .memory-mark__seal {
    width: 40px;
    height: 40px;
  }

  .motion-toggle {
    min-width: 44px;
    min-height: 44px;
  }

  .global-countdown {
    border-radius: var(--v3-radius-sm);
    box-shadow: 4px 4px 0 var(--v3-sky), 7px 7px 0 rgba(39, 49, 58, .05);
  }

  .global-countdown::after {
    right: 8px;
    left: 8px;
    height: 2px;
  }

  .calendar-hero__clock {
    font-size: 30px;
    padding: 11px 14px;
  }

  .calendar-hero h1,
  .gallery-hero h1 {
    font-size: 42px;
  }

  .calendar-day:hover,
  .calendar-day[aria-pressed="true"] {
    transform: none;
  }

  .gallery-photo:hover {
    transform: none;
  }

  .ui3-backtop {
    width: 48px;
    height: 48px;
    right: max(12px, env(safe-area-inset-right));
    bottom: max(12px, env(safe-area-inset-bottom));
  }
}

@media (prefers-reduced-motion: reduce) {
  .ui3-backtop,
  .global-countdown,
  .command-button,
  .icon-button,
  .gallery-photo,
  .calendar-day,
  .memory-mark__seal,
  .motion-toggle {
    transition: none;
    animation: none;
  }

  .standalone-page.ui3-ready {
    animation: none;
  }
}