/* =========================================================================
   STARSHIP NEMURU — brand page styles

   Loaded only by layouts/nemuru.njk, together with nemuru/palette.css, which
   is the app's own palette (--nemuru-*). This brand has its own look, so it
   does not share site.css.

   Type follows the app: SF Mono for the instrument-panel voice (NEMURU,
   labels, coordinates, the log) and SF Pro for ordinary reading text. Both
   are the system's own faces, so they are not downloaded; elsewhere the
   stacks fall back to the platform's monospace and UI fonts.

   Colour rule, as in site.css: no raw rgba(). Everything derives from the
   palette, with the channel triplet below for partial alpha.
   ========================================================================= */

:root {
  --rgb-n-ink: 204 222 219; /* = --nemuru-ink, for alpha */
  --n-dim: color-mix(in srgb, var(--nemuru-ink) 68%, var(--nemuru-space));
  --n-faint: color-mix(in srgb, var(--nemuru-ink) 50%, var(--nemuru-space));
  --n-line: rgb(var(--rgb-n-ink) / 0.14);
  --n-panel: rgb(var(--rgb-n-ink) / 0.05);

  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --font-text: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui,
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans CJK JP",
    "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;

  --n-width: 1040px;
  --n-gutter: 24px;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background-color: var(--nemuru-space);
}

body.nemuru {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
  margin: 0;
  color: var(--nemuru-ink);
  font-family: var(--font-text);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Korean breaks between words, not inside them. Japanese has no spaces, so
   auto-phrase breaks it at phrase boundaries where the browser can. */
:lang(ko) {
  word-break: keep-all;
}

:lang(ja) {
  word-break: auto-phrase;
  line-break: strict;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

h1,
h2,
p,
dl,
dd,
figure,
ul {
  margin: 0;
  padding: 0;
}

ul {
  list-style: none;
}

:focus-visible {
  outline: 2px solid var(--nemuru-accent);
  outline-offset: 3px;
}

/* -------------------------------------------------------------------------
   Stars. Three fixed layers of dots in the app's star colours, drifting down
   at different speeds for a little parallax. Each layer moves by exactly one
   tile height, so the loop has no visible seam. Behind everything
   (z-index -1; <body> makes no stacking context).
   ------------------------------------------------------------------------- */

body.nemuru::before,
body.nemuru::after {
  content: "";
  position: fixed;
  left: 0;
  right: 0;
  top: -520px;
  bottom: 0;
  z-index: -1;
  pointer-events: none;
}

body.nemuru::before {
  background-image:
    radial-gradient(1.6px 1.6px at 334px 157px, color-mix(in srgb, var(--nemuru-star-pale-gold) 90%, transparent) 0, color-mix(in srgb, var(--nemuru-star-pale-gold) 90%, transparent) 50%, transparent 100%),
    radial-gradient(1.6px 1.6px at 52px 77px, color-mix(in srgb, var(--nemuru-star-ice-blue) 90%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 90%, transparent) 50%, transparent 100%),
    radial-gradient(1.6px 1.6px at 99px 377px, color-mix(in srgb, var(--nemuru-star-ice-blue) 90%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 90%, transparent) 50%, transparent 100%),
    radial-gradient(1.6px 1.6px at 62px 222px, color-mix(in srgb, var(--nemuru-star-warm-white) 90%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 90%, transparent) 50%, transparent 100%),
    radial-gradient(1.6px 1.6px at 91px 447px, color-mix(in srgb, var(--nemuru-star-pale-gold) 90%, transparent) 0, color-mix(in srgb, var(--nemuru-star-pale-gold) 90%, transparent) 50%, transparent 100%),
    radial-gradient(1.6px 1.6px at 74px 249px, color-mix(in srgb, var(--nemuru-star-warm-white) 90%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 90%, transparent) 50%, transparent 100%),
    radial-gradient(1.6px 1.6px at 437px 63px, color-mix(in srgb, var(--nemuru-star-ice-blue) 90%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 90%, transparent) 50%, transparent 100%);
  background-size: 520px 520px;
  animation: n-drift-near 150s linear infinite;
}

body.nemuru::after {
  background-image:
    radial-gradient(1.1px 1.1px at 234px 289px, color-mix(in srgb, var(--nemuru-star-mint-white) 70%, transparent) 0, color-mix(in srgb, var(--nemuru-star-mint-white) 70%, transparent) 50%, transparent 100%),
    radial-gradient(1.1px 1.1px at 234px 263px, color-mix(in srgb, var(--nemuru-star-ice-blue) 70%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 70%, transparent) 50%, transparent 100%),
    radial-gradient(1.1px 1.1px at 100px 97px, color-mix(in srgb, var(--nemuru-star-ice-blue) 70%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 70%, transparent) 50%, transparent 100%),
    radial-gradient(1.1px 1.1px at 246px 325px, color-mix(in srgb, var(--nemuru-star-ice-blue) 70%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 70%, transparent) 50%, transparent 100%),
    radial-gradient(1.1px 1.1px at 409px 98px, color-mix(in srgb, var(--nemuru-star-warm-white) 70%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 70%, transparent) 50%, transparent 100%),
    radial-gradient(1.1px 1.1px at 231px 158px, color-mix(in srgb, var(--nemuru-star-warm-white) 70%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 70%, transparent) 50%, transparent 100%),
    radial-gradient(1.1px 1.1px at 49px 278px, color-mix(in srgb, var(--nemuru-star-lavender) 70%, transparent) 0, color-mix(in srgb, var(--nemuru-star-lavender) 70%, transparent) 50%, transparent 100%),
    radial-gradient(1.1px 1.1px at 24px 307px, color-mix(in srgb, var(--nemuru-star-pale-gold) 70%, transparent) 0, color-mix(in srgb, var(--nemuru-star-pale-gold) 70%, transparent) 50%, transparent 100%),
    radial-gradient(1.1px 1.1px at 234px 337px, color-mix(in srgb, var(--nemuru-star-ice-blue) 70%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 70%, transparent) 50%, transparent 100%),
    radial-gradient(1.1px 1.1px at 335px 83px, color-mix(in srgb, var(--nemuru-star-ice-blue) 70%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 70%, transparent) 50%, transparent 100%),
    radial-gradient(1.1px 1.1px at 10px 428px, color-mix(in srgb, var(--nemuru-star-ice-blue) 70%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 70%, transparent) 50%, transparent 100%),
    radial-gradient(1.1px 1.1px at 35px 33px, color-mix(in srgb, var(--nemuru-star-warm-white) 70%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 70%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 100px 126px, color-mix(in srgb, var(--nemuru-star-ice-blue) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 18px 401px, color-mix(in srgb, var(--nemuru-star-mint-white) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-mint-white) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 170px 228px, color-mix(in srgb, var(--nemuru-star-ice-blue) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 434px 103px, color-mix(in srgb, var(--nemuru-star-ice-blue) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 122px 330px, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 258px 5px, color-mix(in srgb, var(--nemuru-star-lavender) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-lavender) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 46px 237px, color-mix(in srgb, var(--nemuru-star-lavender) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-lavender) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 145px 211px, color-mix(in srgb, var(--nemuru-star-ice-blue) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 433px 45px, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 164px 391px, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 265px 150px, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 38px 291px, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 208px 58px, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 200px 37px, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 436px 353px, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 112px 110px, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 243px 195px, color-mix(in srgb, var(--nemuru-star-pale-gold) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-pale-gold) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 217px 40px, color-mix(in srgb, var(--nemuru-star-ice-blue) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-ice-blue) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 325px 104px, color-mix(in srgb, var(--nemuru-star-lavender) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-lavender) 50%, transparent) 50%, transparent 100%),
    radial-gradient(0.9px 0.9px at 141px 175px, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 0, color-mix(in srgb, var(--nemuru-star-warm-white) 50%, transparent) 50%, transparent 100%);
  background-size: 440px 440px;
  animation: n-drift-far 240s linear infinite;
}

@keyframes n-drift-near {
  to {
    transform: translateY(520px);
  }
}

@keyframes n-drift-far {
  to {
    transform: translateY(440px);
  }
}

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

/* -------------------------------------------------------------------------
   Header
   ------------------------------------------------------------------------- */

.n-header,
.n-hero,
.n-footer {
  width: min(var(--n-width), calc(100% - 2 * var(--n-gutter)));
  margin-inline: auto;
}

.n-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 0;
  font-family: var(--font-mono);
}

.n-wordmark {
  font-size: 1.125rem;
  letter-spacing: 0.42em;
  color: var(--n-dim);
}

.n-langs {
  display: flex;
  gap: 4px;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
}

.n-langs a {
  display: grid;
  place-items: center;
  min-width: 40px;
  height: 40px;
  padding: 0 8px;
  border-radius: 999px;
  color: var(--n-faint);
}

.n-langs a[aria-current="page"] {
  background: var(--n-panel);
  color: var(--nemuru-ink);
}

@media (hover: hover) and (pointer: fine) {
  .n-wordmark:hover,
  .n-langs a:hover {
    color: var(--nemuru-ink);
  }
}

/* -------------------------------------------------------------------------
   Hero
   ------------------------------------------------------------------------- */

body.nemuru > main {
  display: flex;
  flex: 1 0 auto;
  flex-direction: column;
  justify-content: center;
}

.n-hero {
  display: grid;
  justify-items: center;
  gap: 18px;
  padding: 24px 0 clamp(40px, 8vh, 88px);
  text-align: center;
}

.n-icon {
  width: clamp(112px, 22vw, 168px);
  height: auto;
  margin-top: 12px;
  border-radius: 22.5%;
  box-shadow: 0 0 0 1px var(--n-line), 0 24px 64px rgb(var(--rgb-n-ink) / 0.05);
}

.n-title {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 5.2vw, 2.75rem);
  font-weight: 400;
  letter-spacing: 0.32em;
  /* Balances the trailing letter-space so the word centres optically. */
  padding-left: 0.32em;
  line-height: 1.2;
}

.n-copyline {
  max-width: 30em;
  font-size: clamp(1.0625rem, 2.6vw, 1.3125rem);
  color: var(--n-dim);
  text-wrap: balance;
}

.n-soon {
  margin-top: 10px;
}

.n-soon span {
  display: inline-block;
  padding: 10px 22px;
  border: 1px solid var(--n-line);
  border-radius: 999px;
  background: var(--n-panel);
  color: var(--nemuru-accent);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.3em;
  padding-left: calc(22px + 0.3em);
}

.n-facts {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px 40px;
  margin-top: 20px;
  font-family: var(--font-mono);
}

.n-facts div {
  display: grid;
  gap: 2px;
  min-width: 72px;
}

.n-facts dt {
  font-size: 0.6875rem;
  letter-spacing: 0.24em;
  color: var(--n-faint);
}

.n-facts dd {
  font-size: 0.9375rem;
  color: var(--nemuru-ink);
}

/* -------------------------------------------------------------------------
   Footer
   ------------------------------------------------------------------------- */

.n-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: center;
  gap: 8px 12px;
  padding: 32px 0 48px;
  border-top: 1px solid var(--n-line);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--n-faint);
}

.n-footer a {
  color: var(--n-dim);
}

@media (hover: hover) and (pointer: fine) {
  .n-footer a:hover {
    color: var(--nemuru-ink);
  }
}

/* -------------------------------------------------------------------------
   Phones
   ------------------------------------------------------------------------- */

@media (max-width: 720px) {
  :root {
    --n-gutter: 20px;
  }

  .n-wordmark {
    letter-spacing: 0.34em;
  }
}