/* Plain CSS, served as-is: no build step, no preprocessor, no framework. */

/* ---------- Font ---------------------------------------------------- */

@font-face {
  font-family: "Mona Sans";
  src: url("../fonts/Mona-Sans.var.woff2") format("woff2");
  font-weight: 200 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+2010-2014, U+2018, U+2019, U+201C, U+201D,
    U+2022, U+2026, U+2039, U+203A, U+2192, U+20AC;
}

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

:root {
  --paper: #fbf7f2;
  --paper-2: #f3ece3;
  --ink: #17130f;
  --ink-2: #4f463c;
  --rule: #e0d5c8;
  --accent: #b03a06;
  --accent-2: #8a2d05;
  --focus: #0b5cab;

  --font: "Mona Sans", ui-sans-serif, system-ui, -apple-system,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono",
    monospace;

  --shell: 70rem;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --gap: clamp(2.5rem, 6vw, 5rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #131110;
    --paper-2: #1c1917;
    --ink: #f6f1ea;
    --ink-2: #b3a89b;
    --rule: #322c26;
    --accent: #ff9152;
    --accent-2: #ffb083;
    --focus: #8ec4ff;
  }
}

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

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  line-height: 1.6;
  font-weight: 400;
  font-synthesis-weight: none;
  overflow-wrap: break-word;
}

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

h1,
h2,
h3 {
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.022em;
  line-height: 1.1;
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

a {
  color: inherit;
}

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

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

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 20;
  background: var(--ink);
  color: var(--paper);
  padding: 0.75rem 1.25rem;
  font-weight: 600;
  text-decoration: none;
}

.skip:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.vh {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

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

.masthead {
  border-bottom: 1px solid var(--rule);
}

.masthead__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
  padding-block: 1.1rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: -0.015em;
  text-decoration: none;
  margin-right: auto;
}

.wordmark__mark {
  flex: none;
  width: 1.4rem;
  height: 1.4rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 1.35rem;
  font-size: 0.95rem;
}

.nav a {
  text-decoration: none;
  padding-block: 0.15rem;
  border-bottom: 2px solid transparent;
  color: var(--ink-2);
}

.nav a:hover {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.nav a[aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
  border-bottom-color: var(--accent);
}

.lang {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* why: the separator only works while the switch shares a line with the nav. */
@media (min-width: 46rem) {
  .lang {
    padding-left: 1.35rem;
    border-left: 1px solid var(--rule);
  }
}

.lang__here {
  font-weight: 700;
  color: var(--ink);
}

.lang a {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.lang a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---------- Sections ------------------------------------------------ */

main {
  display: block;
}

.band {
  padding-block: var(--gap);
  border-top: 1px solid var(--rule);
}

.band--flush {
  border-top: 0;
}

.band--tint {
  background: var(--paper-2);
}

.eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin: 0 0 1rem;
}

@media (prefers-color-scheme: dark) {
  .eyebrow {
    color: var(--accent);
  }
}

.hero {
  padding-block: clamp(3rem, 9vw, 6.5rem) var(--gap);
}

.hero h1 {
  font-size: clamp(2.1rem, 1.1rem + 4.6vw, 4.25rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.03;
  max-width: 20ch;
}

.hero__lede {
  margin-top: 1.6rem;
  max-width: 58ch;
  font-size: clamp(1.1rem, 1rem + 0.55vw, 1.375rem);
  line-height: 1.5;
  color: var(--ink-2);
}

.hero__meta {
  margin-top: 1.1rem;
  font-size: 0.95rem;
  color: var(--ink-2);
}

h2 {
  font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.4rem);
  max-width: 22ch;
}

h3 {
  font-size: clamp(1.2rem, 1.1rem + 0.5vw, 1.45rem);
  letter-spacing: -0.015em;
}

.lede {
  margin-top: 1.1rem;
  max-width: 62ch;
  font-size: clamp(1.02rem, 0.98rem + 0.25vw, 1.15rem);
  color: var(--ink-2);
}

.prose > * + * {
  margin-top: 1rem;
}

.prose {
  max-width: 62ch;
  margin-top: 1.6rem;
}

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

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1rem;
  margin-top: 2.25rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.4rem;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: 2px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  transition: background-color 0.15s ease, color 0.15s ease,
    border-color 0.15s ease;
}

.btn:hover {
  background: var(--accent-2);
  border-color: var(--accent-2);
  color: #fff;
}

@media (prefers-color-scheme: dark) {
  .btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #17130f;
  }
}

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

.btn--ghost:hover {
  background: transparent;
  border-color: var(--accent);
  color: var(--accent);
}

.tlink {
  color: var(--accent-2);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
  font-weight: 600;
}

@media (prefers-color-scheme: dark) {
  .tlink {
    color: var(--accent);
  }
}

.tlink:hover {
  text-decoration-thickness: 2px;
}

/* ---------- Cards / grids ------------------------------------------- */

.grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
  margin-top: 2.5rem;
}

@media (min-width: 46rem) {
  .grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 46rem) {
  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 64rem) {
  .grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.card {
  border-top: 3px solid var(--ink);
  padding-top: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.card h3 {
  margin: 0;
}

.card p {
  color: var(--ink-2);
}

.card__url {
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: -0.01em;
}

.stage {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.35;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  color: var(--ink);
}

.band--tint .stage {
  background: var(--paper);
}

/* Definition-style spec list: label above value */

.spec {
  margin-top: 2.25rem;
  display: grid;
  gap: 0.75rem 2rem;
  font-size: 0.95rem;
}

@media (min-width: 40rem) {
  .spec {
    grid-template-columns: 9.5rem minmax(0, 1fr);
  }
}

.spec dt {
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  padding-top: 0.2rem;
}

.spec dd {
  margin: 0;
}

/* ---------- Lists --------------------------------------------------- */

.ticks {
  list-style: none;
  margin-top: 2.25rem;
  display: grid;
  gap: 1.5rem 2.5rem;
}

@media (min-width: 46rem) {
  .ticks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.ticks > li {
  border-top: 1px solid var(--rule);
  padding-top: 1rem;
}

.ticks strong {
  display: block;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.ticks span {
  color: var(--ink-2);
  font-size: 0.98rem;
}

.steps {
  list-style: none;
  counter-reset: step;
  margin-top: 2.25rem;
  display: grid;
  gap: 1.75rem;
}

@media (min-width: 46rem) {
  .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.steps > li {
  counter-increment: step;
  border-top: 1px solid var(--rule);
  padding-top: 1rem;
}

.steps > li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent-2);
  margin-bottom: 0.5rem;
}

@media (prefers-color-scheme: dark) {
  .steps > li::before {
    color: var(--accent);
  }
}

.steps strong {
  display: block;
  margin-bottom: 0.3rem;
}

.steps span {
  color: var(--ink-2);
  font-size: 0.98rem;
}

.bullets {
  list-style: none;
  margin-top: 1.25rem;
  display: grid;
  gap: 0.7rem;
  max-width: 62ch;
}

.bullets > li {
  padding-left: 1.4rem;
  position: relative;
  color: var(--ink-2);
}

.bullets > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.55rem;
  height: 2px;
  background: var(--accent);
}

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

.contact-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  margin-top: 2.5rem;
}

@media (min-width: 52rem) {
  .contact-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }
}

.contact-grid .eyebrow {
  margin-top: 2.25rem;
}

.contact-grid > div > :first-child {
  margin-top: 0;
}

.contact-grid .prose {
  margin-top: 0;
}

.contact-grid .bullets {
  margin-top: 0;
}

.mailto {
  font-size: clamp(1.15rem, 0.9rem + 1.2vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--accent-2);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  word-break: break-word;
}

@media (prefers-color-scheme: dark) {
  .mailto {
    color: var(--accent);
  }
}

[data-copy-email] {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem 1.1rem;
}

.copy-btn {
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--rule);
  cursor: pointer;
}

.copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent-2);
}

@media (prefers-color-scheme: dark) {
  .copy-btn:hover {
    color: var(--accent);
  }
}

address {
  font-style: normal;
  color: var(--ink-2);
}

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

.foot {
  border-top: 1px solid var(--rule);
  padding-block: 3rem 3.5rem;
  font-size: 0.92rem;
}

.foot__grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 46rem) {
  .foot__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr);
  }
}

.foot h2 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 0.8rem;
  max-width: none;
}

.foot ul {
  list-style: none;
  display: grid;
  gap: 0.45rem;
}

.foot a {
  color: var(--ink-2);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.foot a:hover {
  color: var(--accent-2);
}

@media (prefers-color-scheme: dark) {
  .foot a:hover {
    color: var(--accent);
  }
}

.foot__legal {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-2);
  font-size: 0.85rem;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}