:root {
  --header: #0d1511;
  --bg: #141e18;

  --thanks-bg: #202c1d;
  --thanks-bg-deep: #111914;

  --season-grass: rgba(82, 132, 72, 0.5);
  --season-deep-grass: rgba(36, 78, 48, 0.34);
  --season-clay: rgba(176, 104, 58, 0.28);
  --season-dust: rgba(218, 182, 126, 0.18);
  --season-chalk: rgba(238, 226, 194, 0.13);
  --season-light: rgba(198, 218, 204, 0.12);
  --season-shadow: rgba(3, 7, 6, 0.34);

  --text: rgba(240, 232, 214, 0.87);
  --text-soft: rgba(222, 214, 193, 0.7);
  --text-bright: #f5eddd;

  --accent: rgba(198, 169, 105, 0.82);
  --accent-hover: rgba(231, 204, 145, 0.96);
  --thanks-accent: rgba(143, 138, 82, 0.86);
  --thanks-accent-hover: rgba(174, 166, 102, 0.96);
  --header-text: rgba(198, 169, 105, 0.5);
  --focus: rgba(226, 211, 177, 0.46);

  --header-height: 3.35rem;
  --content-x: clamp(1.45rem, 7vw, 5.5rem);
  --content-top: clamp(3rem, 9dvh, 5.75rem);
  --content-bottom: clamp(5.5rem, 14dvh, 9rem);

  --type-name: clamp(2.55rem, 10.8vw, 4.5rem);
  --type-feature: clamp(1.5rem, 6.35vw, 2.28rem);
  --type-body: clamp(1.24rem, 5vw, 1.74rem);
  --type-small: clamp(0.78rem, 2.25vw, 0.9rem);
  --type-contact: clamp(1.5rem, 6.35vw, 2.28rem);

  --reading-wrap: balance;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--header);
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100%;
  background: var(--header);
  color: var(--text);
  font-family: "Averia Serif Libre", serif;
  overflow-x: hidden;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.site-shell {
  position: relative;
  width: 100%;
  min-height: 100dvh;
  background: var(--header);
  overflow-x: clip;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 30;
  width: 100%;
  background: var(--header);
  padding-top: env(safe-area-inset-top);
}

.curiosity-tab {
  all: unset;
  box-sizing: border-box;
  position: relative;
  width: 100%;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 var(--content-x);
  background: var(--header);
  color: var(--header-text);
  font-family: "Geist Mono", monospace;
  font-size: var(--type-small);
  font-weight: 400;
  letter-spacing: 0.025em;
  word-spacing: 0.14em;
  cursor: pointer;
  user-select: none;
  box-shadow:
    0 -1px 0 rgba(235, 215, 171, 0.018) inset,
    0 2px 5px rgba(2, 6, 4, 0.08);
}

.curiosity-tab::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -5px;
  height: 5px;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(2, 6, 4, 0.055),
    rgba(2, 6, 4, 0)
  );
}

.curiosity-tab:focus-visible {
  outline: 1px solid var(--focus);
  outline-offset: -0.42rem;
}

.tab-mark {
  display: flex;
  align-items: center;
  gap: clamp(0.7rem, 2.5vw, 1.15rem);
  min-width: 0;
  opacity: 0.74;
}

.tab-barcode {
  display: block;
  width: clamp(7.4rem, 28vw, 12.5rem);
  height: 1.35rem;
  color: currentColor;
}

.tab-call-number {
  display: block;
  color: currentColor;
  font-family: "Geist Mono", monospace;
  font-size: var(--type-small);
  font-weight: 400;
  letter-spacing: 0.045em;
  word-spacing: 0.12em;
  white-space: nowrap;
}

.tab-caret {
  position: relative;
  flex: 0 0 auto;
  width: 0.9rem;
  height: 0.6rem;
  opacity: 0.62;
  transition:
    opacity 320ms ease,
    transform 520ms cubic-bezier(0.22, 1, 0.36, 1);
}

.tab-caret::before,
.tab-caret::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 0.55rem;
  height: 1px;
  background: currentColor;
}

.tab-caret::before {
  right: 50%;
  transform: rotate(28deg);
  transform-origin: right center;
}

.tab-caret::after {
  left: 50%;
  transform: rotate(-28deg);
  transform-origin: left center;
}

.site-shell.is-thanks-open .tab-caret {
  opacity: 0.78;
  transform: rotate(180deg);
}

.latest-page {
  position: relative;
  z-index: 1;
  width: 100%;
  min-height: 100dvh;
  overflow: hidden;
  background: var(--bg);
  padding:
    calc(var(--header-height) + env(safe-area-inset-top) + var(--content-top))
    var(--content-x)
    var(--content-bottom);
}

.latest-page::before {
  content: "";
  position: absolute;
  inset: -10%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 78% 84%, var(--season-clay), transparent 54%),
    radial-gradient(circle at 62% 72%, var(--season-dust), transparent 58%),
    radial-gradient(circle at 44% 56%, var(--season-chalk), transparent 56%),
    radial-gradient(circle at 18% 22%, var(--season-grass), transparent 60%),
    radial-gradient(circle at 42% 38%, var(--season-deep-grass), transparent 66%),
    radial-gradient(circle at 72% 18%, var(--season-light), transparent 52%),
    radial-gradient(circle at center, transparent 52%, var(--season-shadow) 100%),
    linear-gradient(
      180deg,
      #12261d 0%,
      #243d27 34%,
      #3d4228 62%,
      #50301f 100%
    );
  animation: season-glow-drift 26s ease-in-out infinite alternate;
}

.latest-page::after {
  content: "";
  position: absolute;
  inset: -10%;
  z-index: 2;
  pointer-events: none;
  background:
    radial-gradient(
      circle at 70% 78%,
      rgba(204, 132, 72, 0.08),
      transparent 52%
    ),
    radial-gradient(
      circle at 26% 18%,
      rgba(122, 178, 108, 0.055),
      transparent 48%
    ),
    radial-gradient(
      circle at 76% 20%,
      rgba(202, 222, 214, 0.055),
      transparent 46%
    ),
    linear-gradient(
      180deg,
      rgba(3, 8, 7, 0.12) 0%,
      rgba(3, 8, 7, 0.025) 20%,
      transparent 46%,
      transparent 78%,
      rgba(3, 8, 7, 0.24) 100%
    );
  animation: season-haze-breathe 18s ease-in-out infinite alternate;
}

.film-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
  mix-blend-mode: soft-light;
  pointer-events: none;
  filter:
    saturate(0.82)
    contrast(0.96)
    brightness(1.05)
    hue-rotate(-2deg);
}

.latest-content {
  position: relative;
  z-index: 3;
  width: min(100%, 36rem);
}

h1,
h2,
p {
  margin: 0;
}

h1,
.status,
.update-label,
.update-text,
.thanks-name,
.thanks-lede,
.thanks-label,
.thanks-copy,
.contact {
  text-wrap: var(--reading-wrap);
}

h1,
.thanks-name {
  max-width: 12em;
  color: var(--text-bright);
  font-family: "Averia Serif Libre", serif;
  font-size: var(--type-name);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.032em;
  text-shadow:
    0 1px 1px rgba(31, 20, 10, 0.15),
    0 0 12px rgba(235, 215, 171, 0.045);
}

.status,
.thanks-lede {
  max-width: 11.4em;
  min-height: 1.16em;
  margin-top: clamp(1.15rem, 3.8vw, 1.55rem);
  color: var(--text-bright);
  font-family: "Averia Serif Libre", serif;
  font-size: var(--type-feature);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.026em;
}

.updates,
.thanks-updates {
  display: grid;
  gap: clamp(1.15rem, 4vw, 1.6rem);
  max-width: 34rem;
  margin-top: clamp(1.8rem, 6.2vw, 2.8rem);
}

.update-block,
.thanks-block {
  max-width: 28rem;
}

.update-label,
.thanks-label {
  margin-bottom: 0.72rem;
  font-family: "Geist Mono", monospace;
  font-size: var(--type-small);
  font-weight: 500;
  letter-spacing: 0.025em;
  word-spacing: 0.14em;
}

.update-label {
  color: var(--accent);
}

.thanks-label {
  color: var(--thanks-accent);
}

.update-text,
.thanks-copy {
  max-width: 28rem;
  color: var(--text);
  font-family: "Averia Serif Libre", serif;
  font-size: var(--type-body);
  font-weight: 400;
  line-height: 1.22;
  letter-spacing: -0.014em;
}

.thanks-panel {
  position: fixed;
  left: 0;
  right: 0;
  top: calc(var(--header-height) + env(safe-area-inset-top));
  z-index: 20;
  height: calc(100dvh - var(--header-height) - env(safe-area-inset-top));
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding:
    var(--content-top)
    var(--content-x)
    calc(clamp(4rem, 12dvh, 7rem) + env(safe-area-inset-bottom));
  background:
    radial-gradient(
      circle at 80% 84%,
      rgba(174, 112, 52, 0.19),
      transparent 54%
    ),
    radial-gradient(
      circle at 18% 18%,
      rgba(76, 124, 68, 0.22),
      transparent 54%
    ),
    radial-gradient(
      circle at 54% 40%,
      rgba(174, 157, 91, 0.09),
      transparent 58%
    ),
    radial-gradient(
      circle at center,
      transparent 46%,
      rgba(3, 7, 5, 0.26) 100%
    ),
    linear-gradient(
      180deg,
      var(--thanks-bg) 0%,
      #1a2419 46%,
      var(--thanks-bg-deep) 100%
    );
  color: var(--text);
  transform: translateY(calc(-100% - var(--header-height)));
  visibility: hidden;
  transition:
    transform 820ms cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0ms linear 820ms;
  box-shadow:
    0 1px 0 rgba(235, 215, 171, 0.025) inset,
    0 10px 30px rgba(2, 6, 4, 0.1);
}

.site-shell.is-thanks-open .thanks-panel {
  transform: translateY(0);
  visibility: visible;
  transition:
    transform 820ms cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0ms linear 0ms;
}

.thanks-content {
  width: min(100%, 36rem);
}

.contact {
  margin-top: clamp(1.9rem, 6.6vw, 3rem);
  color: var(--thanks-accent);
  font-family: "Averia Serif Libre", serif;
  font-size: var(--type-contact);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.024em;
}

.contact a {
  color: inherit;
  text-decoration: none;
  text-underline-offset: 0.18em;
}

.contact a:hover {
  color: var(--thanks-accent-hover);
}

.contact a:focus-visible {
  outline: 1px solid var(--focus);
  outline-offset: 0.18em;
}

@keyframes season-glow-drift {
  0% {
    transform: translate3d(-1%, -0.5%, 0) scale(1);
    filter: brightness(0.98) saturate(0.98);
  }

  50% {
    transform: translate3d(0.75%, 1%, 0) scale(1.018);
    filter: brightness(1.04) saturate(1.04);
  }

  100% {
    transform: translate3d(1.5%, -0.5%, 0) scale(1.012);
    filter: brightness(1.01) saturate(1.02);
  }
}

@keyframes season-haze-breathe {
  0% {
    opacity: 0.78;
    transform: translate3d(-0.5%, 0.5%, 0) scale(1);
  }

  100% {
    opacity: 0.96;
    transform: translate3d(0.75%, -0.5%, 0) scale(1.015);
  }
}

@media (max-width: 759px) {
  :root {
    --content-top: clamp(
      4.25rem,
      calc(9dvh + 1.25rem),
      7rem
    );
  }

  .tab-mark {
    gap: 0.65rem;
  }

  .tab-barcode {
    width: clamp(6.25rem, 34vw, 8.5rem);
    height: 1.2rem;
  }

  .tab-call-number {
    font-size: clamp(0.68rem, 2.1vw, 0.78rem);
    letter-spacing: 0.025em;
  }
}

@media (min-width: 760px) {
  :root {
    --header-height: 3.5rem;
    --content-x: 14vw;
    --content-top: clamp(4.1rem, 11dvh, 7.4rem);
    --content-bottom: clamp(6rem, 15dvh, 10rem);

    --type-name: clamp(3.2rem, 6.5vw, 4.9rem);
    --type-feature: clamp(1.85rem, 3.8vw, 2.5rem);
    --type-body: clamp(1.28rem, 2.75vw, 1.78rem);
    --type-contact: clamp(1.85rem, 3.8vw, 2.5rem);
  }

  .latest-content,
  .thanks-content {
    width: min(100%, 40rem);
  }
}

@media (max-height: 620px) and (orientation: landscape) {
  :root {
    --header-height: 3rem;
    --content-x: 1.45rem;
    --content-top: 1.45rem;
    --content-bottom: 4rem;

    --type-name: clamp(2.15rem, 7.4vw, 3.2rem);
    --type-feature: clamp(1.25rem, 5vw, 1.9rem);
    --type-body: clamp(1rem, 3.6vw, 1.28rem);
    --type-contact: clamp(1.25rem, 4.8vw, 1.8rem);
  }

  .status,
  .thanks-lede {
    margin-top: 0.85rem;
  }

  .updates,
  .thanks-updates {
    gap: 0.9rem;
    margin-top: 1.2rem;
  }

  .update-label,
  .thanks-label {
    margin-bottom: 0.5rem;
  }

  .thanks-panel {
    padding-top: var(--content-top);
    padding-bottom: calc(2rem + env(safe-area-inset-bottom));
  }

  .contact {
    margin-top: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .latest-page::before,
  .latest-page::after {
    animation: none;
  }

  .film-overlay {
    display: none;
  }

  .tab-caret,
  .thanks-panel {
    transition: none;
  }
}