/* ==========================================================================
   MOSIKEN — mosiken.org
   Layout: a chart sheet. A narrow margin column carries labels and status;
   one wide column carries the content. A single variable family swings
   between ultra-condensed giants and expanded micro-labels.
   ========================================================================== */

/* ---------- Fonts (self-hosted, SIL OFL 1.1 — see assets/fonts) ---------- */

@font-face {
  font-family: "Archivo";
  src: url("../fonts/archivo-variable.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Chivo Mono";
  src: url("../fonts/chivo-mono-variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* ---------- Tokens ---------- */

:root {
  /* Day chart */
  --paper: #EFF3F2;      /* chart paper, deep water */
  --ink: #0A0F14;        /* blue-black printing ink */
  --ink-soft: #536069;   /* secondary text */
  --shoal: #D3E3E8;      /* shallow-water tint */
  --signal: #C4117C;     /* chart magenta: everything you can act on */
  --on-signal: #FFFFFF;
  --rule: color-mix(in srgb, var(--ink) 18%, transparent);

  --font-sans: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "Chivo Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --step--1: 0.8125rem;
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --step-1: clamp(1.25rem, 1.1rem + 0.75vw, 1.75rem);
  --step-2: clamp(1.75rem, 1.2rem + 2.4vw, 3.25rem);
  --step-3: clamp(2.5rem, 1.3rem + 5.4vw, 6rem);
  --step-4: clamp(3.25rem, 1rem + 8.6vw, 8.75rem);

  --gutter: clamp(1rem, 3.4vw, 3rem);
  --gap: clamp(1.25rem, 2.4vw, 2.5rem);
  --section: clamp(5rem, 11vw, 11rem);
  --header-h: 4.25rem;

  --ease: cubic-bezier(0.2, 0.7, 0.1, 1);
  --ease-tide: cubic-bezier(0.65, 0, 0.15, 1);

  color-scheme: light;
}

/* Night chart */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #06090C;
    --ink: #DDE6EA;
    --ink-soft: #8795A0;
    --shoal: #0E1C25;
    --signal: #FF54B4;
    --on-signal: #06090C;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --paper: #06090C;
  --ink: #DDE6EA;
  --ink-soft: #8795A0;
  --shoal: #0E1C25;
  --signal: #FF54B4;
  --on-signal: #06090C;
  color-scheme: dark;
}

/* ---------- Reset ---------- */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
  margin: 0;
  min-height: 100svh;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  font-weight: 400;
  font-stretch: 100%;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

h1,
h2,
h3,
p,
ul,
ol,
dl,
dd,
figure {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

img,
svg,
canvas {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

::selection {
  background: var(--signal);
  color: var(--on-signal);
}

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

[hidden] {
  display: none !important;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-200%);
}

.skip:focus {
  transform: none;
}

/* ---------- Type roles ---------- */

.label {
  font-size: 0.6875rem;
  font-weight: 600;
  font-stretch: 125%;
  line-height: 1.3;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
}

.display {
  font-size: var(--step-3);
  font-weight: 700;
  font-stretch: 72%;
  line-height: 0.94;
  letter-spacing: -0.012em;
  text-wrap: balance;
}

.lead {
  font-size: var(--step-1);
  line-height: 1.32;
  letter-spacing: -0.005em;
  max-width: 34em;
  text-wrap: pretty;
}

.prose {
  display: grid;
  gap: 1.1em;
  max-width: 38em;
  color: var(--ink-soft);
  text-wrap: pretty;
}

.prose strong {
  color: var(--ink);
  font-weight: 600;
}

.soft {
  color: var(--ink-soft);
}

/* ---------- Layout ---------- */

.wrap {
  padding-left: max(var(--gutter), env(safe-area-inset-left, 0px));
  padding-right: max(var(--gutter), env(safe-area-inset-right, 0px));
}

.section {
  padding-block: var(--section);
}

.section--tight {
  padding-block: calc(var(--section) * 0.6);
}

.sheet {
  display: grid;
  gap: var(--gap);
}

.sheet > * {
  min-width: 0;
}

.sheet__main {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.75rem);
  justify-items: start;
}

@media (min-width: 60rem) {
  .sheet {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
  }

  .sheet__margin {
    padding-top: 0.6em;
  }
}

.rule {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 0;
}

/* ---------- Icons (mask glyphs; the font subset has no arrows) ---------- */

.i {
  display: inline-block;
  flex: none;
  width: 1em;
  height: 1em;
  background: currentColor;
  -webkit-mask: var(--i) center / contain no-repeat;
  mask: var(--i) center / contain no-repeat;
}

.i--right {
  --i: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M3 12h17M13 5l7 7-7 7'/%3E%3C/svg%3E");
}

.i--out {
  --i: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M6 18L18 6M8 6h10v10'/%3E%3C/svg%3E");
}

.i--down {
  --i: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M12 3v17M5 13l7 7 7-7'/%3E%3C/svg%3E");
}

/* ---------- Buttons and links ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-size: 0.6875rem;
  font-weight: 600;
  font-stretch: 125%;
  line-height: 1;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.25s, border-color 0.25s, color 0.25s;
}

.btn .i {
  font-size: 1rem;
  transition: transform 0.35s var(--ease);
}

.btn:hover {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--on-signal);
}

.btn:hover .i--right {
  transform: translateX(0.25rem);
}

.btn:hover .i--out {
  transform: translate(0.15rem, -0.15rem);
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
}

.btn--ghost:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: var(--rule);
  transition: color 0.2s, text-decoration-color 0.2s;
}

.link:hover {
  color: var(--signal);
  text-decoration-color: currentColor;
}

.link .i {
  font-size: 0.95em;
  transition: transform 0.35s var(--ease);
}

.link:hover .i--right {
  transform: translateX(0.2rem);
}

.link:hover .i--out {
  transform: translate(0.12rem, -0.12rem);
}

/* ---------- Status ---------- */

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.status::before {
  content: "";
  flex: none;
  width: 0.625rem;
  height: 0.625rem;
  border: 1.5px solid currentColor;
  border-radius: 50%;
}

.status--live::before {
  background: var(--signal);
  border-color: var(--signal);
  animation: beacon 2.4s ease-out infinite;
}

.status--dev::before {
  background: linear-gradient(90deg, currentColor 50%, transparent 50%);
}

.status--research::before {
  border-style: dotted;
  border-width: 2px;
}

@keyframes beacon {
  0% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--signal) 55%, transparent);
  }
  70%,
  100% {
    box-shadow: 0 0 0 0.6rem transparent;
  }
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  padding-top: env(safe-area-inset-top, 0px);
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s, border-color 0.3s;
}

.site-header.is-stuck {
  background: color-mix(in srgb, var(--paper) 84%, transparent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--rule);
}

.site-header__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.9375rem;
  font-weight: 800;
  font-stretch: 125%;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  text-decoration: none;
}

.brand__mark {
  width: 1.375rem;
  height: 1.375rem;
  transition: transform 0.9s var(--ease-tide);
}

.brand:hover .brand__mark {
  transform: rotate(-270deg);
}

.brand__mark .eye {
  fill: var(--signal);
  stroke: none;
}

.site-header__tools {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 2rem);
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.4vw, 2.25rem);
}

.nav a {
  position: relative;
  padding-block: 0.6rem;
  font-size: 0.6875rem;
  font-weight: 600;
  font-stretch: 125%;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  text-decoration: none;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.25rem;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease);
}

.nav a:hover::after,
.nav a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav a[aria-current="page"] {
  color: var(--signal);
}

.nav__home {
  display: none;
}

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--rule);
  border-radius: 50%;
  transition: border-color 0.2s, background-color 0.2s, color 0.2s;
}

.icon-btn:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.theme-toggle svg {
  width: 1rem;
  height: 1rem;
  transition: transform 0.6s var(--ease-tide);
}

:root[data-theme="dark"] .theme-toggle svg {
  transform: rotate(180deg);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle svg {
    transform: rotate(180deg);
  }
}

.menu-toggle {
  display: none;
  align-items: center;
  height: 2.5rem;
  padding-inline: 1rem;
  border: 1px solid var(--rule);
  border-radius: 2rem;
  font-size: 0.6875rem;
  font-weight: 600;
  font-stretch: 125%;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

@media (max-width: 47.99rem) {
  .menu-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    inset: 0;
    z-index: -1;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
    gap: 0;
    padding: calc(var(--header-h) + 2rem) max(var(--gutter), env(safe-area-inset-right, 0px))
      calc(2.5rem + env(safe-area-inset-bottom, 0px)) max(var(--gutter), env(safe-area-inset-left, 0px));
    background: var(--paper);
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s, visibility 0s 0.3s;
  }

  .nav a {
    width: 100%;
    padding-block: 0.1em;
    border-top: 1px solid var(--rule);
    font-size: clamp(3.25rem, 19vw, 6rem);
    font-weight: 800;
    font-stretch: 62%;
    line-height: 1;
    letter-spacing: 0;
  }

  .nav a::after {
    display: none;
  }

  .nav__home {
    display: block;
  }

  .menu-open .nav {
    visibility: visible;
    opacity: 1;
    transition-delay: 0s;
  }

  .menu-open .site-header {
    background: var(--paper);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    border-bottom-color: transparent;
  }

  .menu-open {
    overflow: hidden;
  }
}

/* ---------- Home hero ---------- */

.hero {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-rows: 1fr auto;
  min-height: min(100svh, 64rem);
  padding-top: calc(var(--header-h) + env(safe-area-inset-top, 0px));
  overflow: clip;
}

.field {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero__body {
  display: grid;
  align-content: end;
  gap: clamp(1.25rem, 2.6vw, 2.25rem);
  padding-block: clamp(1.5rem, 4vw, 3rem);
}

.hero__title {
  --size: min(23.4vw, 21svh);
  font-size: var(--size);
  font-weight: 800;
  font-stretch: 62%;
  line-height: 0.8;
  letter-spacing: -0.005em;
  text-transform: uppercase;
}

.hero__title .w {
  display: block;
  overflow: clip;
  padding-block: 0.06em;
  margin-block: -0.06em;
}

.hero__title .w > span {
  display: inline-block;
  animation: rise 1s var(--ease) both;
  animation-delay: calc(var(--n) * 90ms + 120ms);
}

.hero__title .w--wide > span {
  color: var(--signal);
  font-stretch: 125%;
  animation: rise 1s var(--ease) both, tide 1.3s var(--ease-tide) both;
  animation-delay: calc(var(--n) * 90ms + 120ms), 700ms;
}

@media (min-width: 48rem) {
  .hero__title {
    --size: min(18.4vw, 23svh);
  }

  .hero__title .w {
    display: inline-block;
    vertical-align: top;
  }

  .hero__title .br {
    display: block;
  }
}

@keyframes rise {
  from {
    transform: translateY(108%);
  }
}

@keyframes tide {
  from {
    font-stretch: 62%;
  }
}

@media (max-width: 30rem) {
  .hero__body > .label {
    font-stretch: 104%;
    letter-spacing: 0.07em;
  }
}

.hero__foot {
  display: grid;
  gap: var(--gap);
  align-items: end;
}

.hero__foot .lead {
  max-width: 31em;
  font-size: clamp(1.0625rem, 0.95rem + 0.6vw, 1.4375rem);
  line-height: 1.38;
}

@media (min-width: 60rem) {
  .hero__foot {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

.strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-soft);
}

.strip > * {
  white-space: nowrap;
}

.strip a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink);
  text-decoration: none;
}

.strip a .i {
  animation: bob 2.4s var(--ease-tide) infinite;
}

@keyframes bob {
  50% {
    transform: translateY(0.2rem);
  }
}

.strip__readout {
  display: none;
}

@media (hover: hover) and (pointer: fine) and (min-width: 60rem) {
  .strip__readout {
    display: block;
  }
}

/* ---------- Page head (inner pages) ---------- */

.page-head {
  padding-top: calc(var(--header-h) + env(safe-area-inset-top, 0px) + clamp(3rem, 9vw, 8rem));
  padding-bottom: clamp(3rem, 7vw, 6rem);
}

.page-head__title {
  font-size: var(--step-4);
  font-weight: 800;
  font-stretch: 62%;
  line-height: 0.84;
  letter-spacing: -0.005em;
  text-transform: uppercase;
  text-wrap: balance;
}

.page-head__title em {
  font-style: normal;
  font-stretch: 125%;
  color: var(--signal);
}

.page-head .sheet__main {
  gap: clamp(1.75rem, 4vw, 3.5rem);
}

/* ---------- Statement ("inking" headline) ---------- */

.js [data-ink] .word {
  opacity: calc(0.14 + 0.86 * var(--o, 1));
  transition: opacity 0.25s linear;
}

/* ---------- Product index (home) ---------- */

.index {
  margin-top: clamp(3rem, 7vw, 6rem);
  border-bottom: 1px solid var(--rule);
}

.row {
  display: grid;
  align-items: center;
  gap: 0.9rem var(--gap);
  padding-block: clamp(1.25rem, 2.4vw, 2rem);
  border-top: 1px solid var(--rule);
  text-decoration: none;
}

.row > * {
  min-width: 0;
}

.row__status {
  color: var(--ink-soft);
}

.row__main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "name go"
    "cat cat";
  align-items: center;
  gap: 0.75rem var(--gap);
}

.row__name {
  grid-area: name;
  font-size: clamp(3.5rem, 1.6rem + 6.6vw, 7.5rem);
  font-weight: 800;
  font-stretch: 62%;
  line-height: 0.82;
  text-transform: uppercase;
  white-space: nowrap;
  transition: font-stretch 0.7s var(--ease-tide), color 0.3s;
}

.row__cat {
  grid-area: cat;
  color: var(--ink-soft);
  transition: opacity 0.3s;
}

.row__go {
  grid-area: go;
  font-size: 1.5rem;
  transition: transform 0.5s var(--ease), color 0.3s;
}

@media (min-width: 60rem) {
  .row {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
  }

  .row__main {
    grid-template-columns: minmax(0, 1fr) minmax(0, 13rem) auto;
    grid-template-areas: "name cat go";
  }

  .row__cat {
    text-align: right;
  }
}

/* The widening name needs the room the category occupies. */
@media (hover: hover) and (min-width: 60rem) {
  .row:hover .row__cat,
  .row:focus-visible .row__cat {
    opacity: 0;
  }
}

@media (hover: hover) {
  .row:hover .row__name,
  .row:focus-visible .row__name {
    font-stretch: 84%;
    color: var(--signal);
  }

  .row:hover .row__go,
  .row:focus-visible .row__go {
    transform: translateX(0.4rem);
    color: var(--signal);
  }
}

/* Floating plate that follows the pointer over the index */

.peek {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 40;
  width: clamp(15rem, 22vw, 21rem);
  pointer-events: none;
  opacity: 0;
  transform: translate3d(var(--x, 0), var(--y, 0), 0) scale(0.9);
  transition: opacity 0.3s, scale 0.3s;
  will-change: transform;
}

.peek.is-on {
  opacity: 1;
}

.peek .plate {
  display: none;
  border: 1px solid var(--ink);
}

.peek .plate.is-on {
  display: block;
}

/* ---------- Plates (generated diagrams) ---------- */

.plate {
  aspect-ratio: 4 / 3;
  max-width: 100%;
  background: var(--shoal);
  color: var(--ink);
  overflow: hidden;
}

.plate svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.25;
  stroke-linecap: square;
}

.plate .faint {
  opacity: 0.35;
}

.plate .solid {
  fill: currentColor;
  stroke: none;
}

.plate .paper {
  fill: var(--paper);
}

.plate .sig {
  stroke: var(--signal);
}

.plate .sig-fill {
  fill: var(--signal);
  stroke: none;
}

.plate .dash {
  stroke-dasharray: 3 5;
}

.plate .draw {
  stroke-dasharray: 1;
  stroke-dashoffset: 0;
}

.plate.is-live .draw {
  animation: draw 2.2s var(--ease-tide) both;
  animation-delay: calc(var(--d, 0) * 60ms);
}

@keyframes draw {
  from {
    stroke-dashoffset: 1;
  }
}

.plate .playhead {
  animation: sweep 6s linear infinite;
  animation-play-state: paused;
}

.plate.is-live .playhead {
  animation-play-state: running;
}

@keyframes sweep {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(248px);
  }
}

.plate .ping {
  transform-box: fill-box;
  transform-origin: center;
  animation: ping 2.6s ease-out infinite;
  animation-play-state: paused;
}

.plate.is-live .ping {
  animation-play-state: running;
}

@keyframes ping {
  from {
    transform: scale(0.4);
    opacity: 1;
  }
  to {
    transform: scale(2.4);
    opacity: 0;
  }
}

/* ---------- Band (tinted statement) ---------- */

.band {
  background: var(--shoal);
}

.band .display {
  font-size: var(--step-2);
  font-stretch: 86%;
  font-weight: 600;
  line-height: 1.04;
  max-width: 22em;
  text-wrap: pretty;
}

.pair {
  display: grid;
  gap: clamp(2.5rem, 6vw, 5rem) var(--gap);
}

.pair > * {
  display: grid;
  align-content: start;
  gap: 1.25rem;
  min-width: 0;
}

@media (min-width: 60rem) {
  .pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- Principles ---------- */

.principles {
  display: grid;
  gap: 0 var(--gap);
  width: 100%;
}

.principles > li {
  display: grid;
  align-content: start;
  gap: 0.9rem;
  padding-block: clamp(1.5rem, 3vw, 2.5rem);
  border-top: 1px solid var(--rule);
}

.principles h3 {
  font-size: var(--step-2);
  font-weight: 700;
  font-stretch: 72%;
  line-height: 0.98;
  letter-spacing: -0.01em;
}

.principles p {
  max-width: 30em;
  color: var(--ink-soft);
}

@media (min-width: 48rem) {
  .principles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- Facts ---------- */

.facts {
  width: 100%;
  border-bottom: 1px solid var(--rule);
}

.facts > div {
  display: grid;
  gap: 0.35rem var(--gap);
  padding-block: 1.1rem;
  border-top: 1px solid var(--rule);
}

.facts dt {
  color: var(--ink-soft);
  padding-top: 0.3em;
}

.facts dd {
  font-size: var(--step-1);
  font-stretch: 86%;
  font-weight: 500;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

@media (min-width: 40rem) {
  .facts > div {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }
}

/* ---------- Products page ---------- */

.jump {
  display: grid;
  width: 100%;
  border-bottom: 1px solid var(--rule);
}

.jump a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.25rem var(--gap);
  padding-block: 1rem;
  border-top: 1px solid var(--rule);
  text-decoration: none;
  transition: color 0.2s;
}

.jump a:hover {
  color: var(--signal);
}

.jump__name {
  font-size: var(--step-1);
  font-weight: 700;
  font-stretch: 86%;
  line-height: 1.1;
}

.jump .status {
  color: var(--ink-soft);
}

@media (min-width: 60rem) {
  .jump {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 var(--gap);
  }

  .jump a {
    grid-template-columns: minmax(0, 1fr);
    align-content: start;
    gap: 0.6rem;
    padding-block: 1.25rem 1.75rem;
  }
}

.product {
  padding-block: clamp(3.5rem, 8vw, 7.5rem);
  border-top: 1px solid var(--rule);
}

.product__head {
  display: grid;
  gap: 1rem;
}

.product__name {
  font-size: min(18.6vw, 17rem);
  font-weight: 800;
  font-stretch: 62%;
  line-height: 0.78;
  text-transform: uppercase;
  margin-left: -0.03em;
}

.product__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 2rem;
}

.product__grid {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem) var(--gap);
  margin-top: clamp(2rem, 5vw, 4.5rem);
}

.product__grid > * {
  min-width: 0;
}

.product__body {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: clamp(1.25rem, 2.4vw, 2rem);
}

.product__body .lead {
  font-weight: 500;
  font-stretch: 86%;
}

@media (min-width: 60rem) {
  .product__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 1fr) minmax(0, 6fr);
  }

  .product__plate {
    grid-column: 1;
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    align-self: start;
  }

  .product__body {
    grid-column: 3;
  }

  .product:nth-of-type(even) .product__plate {
    grid-column: 3;
    grid-row: 1;
  }

  .product:nth-of-type(even) .product__body {
    grid-column: 1;
    grid-row: 1;
  }

  .product:nth-of-type(even) .product__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 1fr) minmax(0, 5fr);
  }
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tags li {
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  line-height: 1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.75rem;
}

/* ---------- Contact ---------- */

.mail {
  display: grid;
  justify-items: start;
  gap: 1.25rem;
  width: 100%;
}

.mail__address {
  max-width: 100%;
  font-size: clamp(2rem, 0.6rem + 7vw, 7.5rem);
  font-weight: 800;
  font-stretch: 62%;
  line-height: 0.9;
  letter-spacing: -0.005em;
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: font-stretch 0.7s var(--ease-tide), color 0.3s;
}

@media (hover: hover) {
  .mail__address:hover {
    color: var(--signal);
    font-stretch: 78%;
  }
}

.topics {
  display: grid;
  width: 100%;
  border-bottom: 1px solid var(--rule);
}

.topics a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.1rem;
  border-top: 1px solid var(--rule);
  font-size: var(--step-1);
  font-weight: 600;
  font-stretch: 86%;
  line-height: 1.1;
  text-decoration: none;
  transition: color 0.2s, padding-left 0.4s var(--ease);
}

.topics a:hover {
  color: var(--signal);
  padding-left: 0.5rem;
}

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

.site-footer {
  border-top: 1px solid var(--rule);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  overflow: clip;
}

.site-footer__top {
  display: grid;
  gap: 2.5rem var(--gap);
  padding-block: clamp(2.5rem, 6vw, 5rem);
}

.site-footer__top > * {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: 0.55rem;
  min-width: 0;
}

.site-footer__top a {
  text-decoration: none;
}

.site-footer__top a:hover {
  color: var(--signal);
}

.site-footer h2 {
  color: var(--ink-soft);
  margin-bottom: 0.5rem;
}

@media (min-width: 48rem) {
  .site-footer__top {
    grid-template-columns: minmax(0, 6fr) minmax(0, 3fr) minmax(0, 3fr);
  }
}

.wordmark {
  display: flex;
  justify-content: space-between;
  font-size: 21.5vw;
  font-weight: 800;
  font-stretch: 92%;
  line-height: 0.76;
  text-transform: uppercase;
  white-space: nowrap;
  user-select: none;
  -webkit-user-select: none;
  touch-action: pan-y;
}

.wordmark span {
  display: block;
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  padding-block: 1.25rem;
  color: var(--ink-soft);
}

.site-footer__base a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink);
  text-decoration: none;
}

.site-footer__base .i {
  transform: rotate(180deg);
}

/* ---------- Copy feedback ---------- */

.copy {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--rule);
  transition: border-color 0.2s, background-color 0.2s, color 0.2s;
}

.copy:hover {
  border-color: var(--ink);
}

.copy.is-done {
  border-color: var(--signal);
  background: var(--signal);
  color: var(--on-signal);
}

/* ---------- Reveal on scroll (only when JS has opted in) ---------- */

.js-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: calc(var(--i, 0) * 80ms);
}

.js-reveal [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- Page transitions ---------- */

@media (prefers-reduced-motion: no-preference) {
  @view-transition {
    navigation: auto;
  }
}

::view-transition-old(root) {
  animation: vt-out 0.22s ease both;
}

::view-transition-new(root) {
  animation: vt-in 0.5s var(--ease) both;
}

@keyframes vt-out {
  to {
    opacity: 0;
  }
}

@keyframes vt-in {
  from {
    opacity: 0;
    transform: translateY(0.75rem);
  }
}

/* ---------- 404 ---------- */

.lost {
  position: relative;
  isolation: isolate;
  display: grid;
  align-content: end;
  min-height: min(100svh, 56rem);
  padding-top: calc(var(--header-h) + 3rem);
  padding-bottom: clamp(2rem, 5vw, 4rem);
  overflow: clip;
}

.lost .sheet__main {
  gap: 1.75rem;
}

/* ---------- Motion preferences ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

/* ---------- Print ---------- */

@media print {
  .site-header,
  .field,
  .peek,
  .wordmark,
  .strip {
    display: none !important;
  }

  .hero {
    min-height: 0;
  }
}

/* ---------- Field furniture ---------- */

.boat {
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
  width: 1.625rem;
  height: auto;
  overflow: visible;
  fill: var(--paper);
  stroke: var(--ink);
  stroke-width: 1.5;
  stroke-linejoin: round;
  pointer-events: none;
  will-change: transform;
}

.eye-mark {
  display: none;
  position: absolute;
  left: var(--eye-x, 80%);
  top: var(--eye-y, 42%);
  z-index: -1;
  padding: 0.6rem 0 0 0.8rem;
  color: var(--ink-soft);
  white-space: nowrap;
  pointer-events: none;
}

.has-field > .eye-mark {
  display: block;
}

.has-field[data-eye="tall"] > .eye-mark {
  width: min-content;
  white-space: normal;
}

/* ---------- Wordmark: the letter that folds away ---------- */

.wordmark-wrap {
  position: relative;
}

.wordmark [data-fold] {
  max-width: 0.7em;
  overflow-x: clip;
  transition: max-width 0.9s var(--ease-tide), opacity 0.5s;
}

.wordmark.is-folded [data-fold] {
  max-width: 0;
  opacity: 0;
}

.clue {
  position: absolute;
  right: 0;
  bottom: 100%;
  padding-bottom: 0.75rem;
  color: var(--signal);
  opacity: 0;
  transition: opacity 0.6s;
  pointer-events: none;
}

.wordmark.is-folded + .clue {
  opacity: 1;
  transition-delay: 0.5s;
}