/* arproxy — monochrome. one accent: none.
   Type: Bricolage Grotesque (display), Inter Tight (body), JetBrains Mono (terminal + code). */

:root {
  --ink: #0a0a0a;
  --paper: #fafaf9;
  --mute: #6b6b6b;
  --line: #d8d8d5;
  --sunk: #f0f0ee;

  --step--1: clamp(0.82rem, 0.78rem + 0.2vw, 0.94rem);
  --step-0:  clamp(1.05rem, 0.98rem + 0.36vw, 1.3rem);
  --step-1:  clamp(1.45rem, 1.24rem + 1.05vw, 2.15rem);
  --step-2:  clamp(2.1rem, 1.6rem + 2.5vw, 3.6rem);
  --step-3:  clamp(3.2rem, 1.6rem + 8vw, 9rem);

  --gut: clamp(1.15rem, 4vw, 5rem);
  --rhythm: clamp(4.5rem, 11vw, 10rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f2f2f0;
    --paper: #0a0a0a;
    --mute: #949490;
    --line: #2b2b2b;
    --sunk: #141414;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter Tight", system-ui, sans-serif;
  font-size: var(--step-0);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

code, pre, .mono { font-family: "JetBrains Mono", ui-monospace, monospace; }

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

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
  z-index: 10;
}
.skip:focus { left: 0; }

/* ---------------------------------------------------------------- bar */

.bar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.9rem var(--gut);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  font-size: var(--step--1);
}

.bar__mark {
  font-family: "Bricolage Grotesque", sans-serif;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: 1.15em;
}

.bar__nav { display: flex; gap: 1.4rem; margin-left: auto; }

.bar__nav a {
  color: var(--mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.15s, border-color 0.15s;
}
.bar__nav a:hover { color: var(--ink); border-bottom-color: var(--ink); }

.bar__state {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--mute);
  letter-spacing: 0.04em;
}
.bar__state i {
  width: 7px;
  height: 7px;
  background: var(--ink);
  border-radius: 50%;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }

@media (max-width: 640px) {
  .bar__nav { display: none; }
  .bar__state { margin-left: auto; }
}

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

.hero { padding: clamp(3.5rem, 9vw, 8rem) var(--gut) clamp(3.5rem, 8vw, 6.5rem); }

.eyebrow {
  margin: 0 0 clamp(1.5rem, 4vw, 3rem);
  font-family: "JetBrains Mono", monospace;
  font-size: var(--step--1);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
}

.hero__h {
  margin: 0;
  font-family: "Bricolage Grotesque", sans-serif;
  font-weight: 800;
  font-size: var(--step-3);
  line-height: 0.86;
  letter-spacing: -0.045em;
  font-variation-settings: "wdth" 85;
}

.hero__h span { display: block; }

.hero__h em {
  font-style: normal;
  font-weight: 600;
  font-variation-settings: "wdth" 100;
  letter-spacing: -0.02em;
  /* the one flourish: the word the whole proxy exists to protect */
  text-decoration: underline;
  text-decoration-thickness: 0.05em;
  text-underline-offset: 0.08em;
}

.hero__body {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  padding-top: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--line);
}

.lede {
  margin: 0;
  max-width: 34ch;
  font-size: var(--step-1);
  line-height: 1.32;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

/* download */

.btn {
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: clamp(0.86rem, 0.7rem + 0.4vw, 1.02rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
  padding: 0.85rem 1.5rem;
  text-decoration: none;
  transition: color 0.15s, background-color 0.15s;
}

.btn:hover { background: var(--paper); color: var(--ink); }
.btn--sm { padding: 0.5rem 1rem; font-size: var(--step--1); }

.cta { margin: clamp(1.8rem, 4vw, 2.6rem) 0 0; display: flex; flex-wrap: wrap; align-items: center; gap: 0.9rem 1.3rem; }

.cta__meta {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--step--1);
  color: var(--mute);
  letter-spacing: -0.01em;
}
.cta__meta code { color: var(--ink); }

/* step 00 — the files have to come from somewhere before the terminal helps */

.getfile {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem 1.1rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.2rem);
  padding-bottom: clamp(1.2rem, 3vw, 1.8rem);
  border-bottom: 1px solid var(--line);
}

.getfile__n {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--step--1);
  color: var(--mute);
  letter-spacing: 0.06em;
}

.getfile__t {
  font-family: "Bricolage Grotesque", sans-serif;
  font-weight: 800;
  font-size: var(--step-1);
  letter-spacing: -0.035em;
  font-variation-settings: "wdth" 85;
}

.getfile .btn { margin-left: auto; }

@media (max-width: 520px) {
  .getfile .btn { margin-left: 0; width: 100%; text-align: center; }
}

.facts { margin: 0; display: grid; gap: 1.4rem; }
.facts div { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; border-bottom: 1px solid var(--line); padding-bottom: 0.5rem; }
.facts dt { font-size: var(--step--1); color: var(--mute); font-family: "JetBrains Mono", monospace; letter-spacing: 0.04em; }
.facts dd { margin: 0; font-family: "Bricolage Grotesque", sans-serif; font-weight: 800; font-size: var(--step-1); letter-spacing: -0.03em; }

@media (max-width: 780px) {
  .hero__body { grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------------- headings */

.h2 {
  margin: 0;
  font-family: "Bricolage Grotesque", sans-serif;
  font-weight: 800;
  font-size: var(--step-2);
  line-height: 0.95;
  letter-spacing: -0.04em;
  font-variation-settings: "wdth" 85;
}

.sub {
  margin: 0;
  max-width: 40ch;
  color: var(--mute);
  font-size: var(--step-0);
  text-wrap: pretty;
}

/* ---------------------------------------------------------------- setup */

.setup {
  padding: var(--rhythm) var(--gut);
  border-top: 1px solid var(--line);
  background: var(--sunk);
}

.setup__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, auto);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: end;
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.setup__head .sub { margin-top: 1rem; }
.setup__head .sub code { color: var(--ink); font-size: 0.92em; }

@media (max-width: 780px) {
  .setup__head { grid-template-columns: 1fr; gap: 1.8rem; align-items: start; }
}

/* track switcher — two paths through the same worker, local first */

.track { display: flex; gap: 0; border: 1px solid var(--ink); }

.track__b {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  font: inherit;
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--mute);
  background: none;
  border: 0;
  border-right: 1px solid var(--ink);
  padding: 0.7rem 1.1rem;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s, background-color 0.15s;
}

.track__b:last-child { border-right: 0; }
.track__b b { font-family: "JetBrains Mono", monospace; font-weight: 400; font-size: 0.82em; letter-spacing: 0.06em; }
.track__b:hover { color: var(--ink); }
.track__b.is-on { background: var(--ink); color: var(--paper); }

@media (max-width: 420px) {
  .track { width: 100%; }
  .track__b { flex: 1; justify-content: center; padding: 0.7rem 0.6rem; }
}

.term {
  display: grid;
  grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
}

@media (max-width: 900px) {
  .term { grid-template-columns: 1fr; }
}

/* step rail — the steps are a real sequence, so they are numbered */

.rail { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.1rem; position: sticky; top: 5rem; }

.rail li {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--line);
  font-size: var(--step--1);
  color: var(--mute);
  transition: color 0.25s;
}

.rail li b {
  font-family: "JetBrains Mono", monospace;
  font-weight: 400;
  font-size: 0.85em;
  letter-spacing: 0.06em;
}

.rail li span { font-weight: 500; letter-spacing: -0.01em; }

.rail li[data-state="run"] { color: var(--ink); }
.rail li[data-state="run"] b::after { content: "·"; margin-left: 0.35em; }
.rail li[data-state="done"] { color: var(--ink); }
.rail li[data-state="done"] b { text-decoration: line-through; text-decoration-thickness: 1px; }

@media (max-width: 900px) {
  .rail { position: static; grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr)); }
}

/* terminal */

.term__box {
  border: 1px solid var(--ink);
  background: var(--paper);
  min-width: 0;
}

.term__chrome {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.55rem 0.9rem;
  border-bottom: 1px solid var(--ink);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.term__title { color: var(--mute); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.term__ctl { margin-left: auto; display: flex; gap: 0.4rem; flex: none; }

/* Below this the title has nothing useful left to say, so give the row to the
   controls instead of truncating it to a single letter. */
@media (max-width: 620px) {
  .term__title { display: none; }
  .term__ctl { margin-left: 0; width: 100%; }
  .ctl { flex: 1; text-align: center; padding: 0.3rem 0.3rem; }
}

.ctl {
  font: inherit;
  color: var(--mute);
  background: none;
  border: 1px solid var(--line);
  padding: 0.22rem 0.6rem;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.ctl:hover { color: var(--ink); border-color: var(--ink); }

.term__screen {
  padding: clamp(0.9rem, 2.5vw, 1.6rem);
  min-height: clamp(23rem, 46vh, 32rem);
  max-height: 32rem;
  overflow-y: auto;
  overscroll-behavior: contain;
  font-family: "JetBrains Mono", monospace;
  font-size: clamp(0.82rem, 0.5rem + 0.7vw, 1.02rem);
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;

  /* Firefox */
  scrollbar-width: thin;
  scrollbar-color: var(--ink) transparent;
}

/* Square, monochrome scrollbar — the default rounded one is the only rounded
   thing on the page. WebKit/Blink. */
.term__screen::-webkit-scrollbar { width: 13px; }

.term__screen::-webkit-scrollbar-track {
  background: transparent;
  border-left: 1px solid var(--line);
}

.term__screen::-webkit-scrollbar-thumb {
  background: var(--ink);
  /* border acts as inset padding, so the thumb reads as a narrow bar */
  border: 4px solid transparent;
  background-clip: content-box;
  min-height: 2.5rem;
}

.term__screen::-webkit-scrollbar-thumb:hover { background: var(--mute); background-clip: content-box; }
.term__screen::-webkit-scrollbar-corner { background: transparent; }

.term__screen .cmd { color: var(--ink); font-weight: 700; }
.term__screen .cmd::before { content: "$ "; color: var(--mute); font-weight: 400; }
.term__screen .con { color: var(--ink); font-weight: 700; padding-left: 1.2ch; }
.term__screen .out { color: var(--mute); }
.term__screen .ok { color: var(--ink); }
.term__screen .cm { color: var(--mute); opacity: 0.75; }
.term__screen .gap { height: 0.85em; }

.caret {
  display: inline-block;
  width: 0.58em;
  height: 1.05em;
  background: var(--ink);
  vertical-align: -0.18em;
  animation: blink 1.05s steps(1) infinite;
}
@keyframes blink { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0; } }

/* base url */

.urlrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.2rem;
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
}

.urlrow__k {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
}

.urlrow code {
  font-size: clamp(0.9rem, 0.6rem + 0.8vw, 1.2rem);
  font-weight: 500;
  word-break: break-all;
}

.copy {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--step--1);
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
  padding: 0.35rem 0.9rem;
  cursor: pointer;
  margin-left: auto;
  flex: none;
}
.copy:hover { opacity: 0.82; }
.copy[data-done] { background: none; color: var(--ink); }

/* ---------------------------------------------------------------- handles */

.handles { padding: var(--rhythm) var(--gut); border-top: 1px solid var(--line); }

.grid {
  margin: clamp(2.5rem, 6vw, 4rem) 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.cell { background: var(--paper); padding: clamp(1.4rem, 3vw, 2.4rem); }

.cell dt {
  font-family: "Bricolage Grotesque", sans-serif;
  font-weight: 800;
  font-size: var(--step-1);
  line-height: 1.05;
  letter-spacing: -0.035em;
  font-variation-settings: "wdth" 85;
  margin-bottom: 0.7rem;
  text-wrap: balance;
}

.cell dd { margin: 0; color: var(--mute); font-size: var(--step--1); line-height: 1.6; text-wrap: pretty; }
.cell dd code { color: var(--ink); font-size: 0.94em; }

/* ---------------------------------------------------------------- api */

.api { padding: var(--rhythm) var(--gut); border-top: 1px solid var(--line); background: var(--sunk); }

.tbl {
  width: 100%;
  border-collapse: collapse;
  margin-top: clamp(2rem, 5vw, 3rem);
  text-align: left;
}

.cap {
  font-family: "JetBrains Mono", monospace;
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--ink);
}

.tbl th, .tbl td {
  padding: 0.85rem 1rem 0.85rem 0;
  border-bottom: 1px solid var(--line);
  vertical-align: baseline;
  font-weight: 400;
}

.tbl th { width: 1%; white-space: nowrap; }
.tbl code { font-size: clamp(0.85rem, 0.6rem + 0.5vw, 1.05rem); font-weight: 500; }

.verb {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  border: 1px solid var(--line);
  padding: 0.2rem 0.5rem;
  color: var(--mute);
}

.tbl__d { color: var(--mute); font-size: var(--step--1); width: 100%; }

.note { margin: 2rem 0 0; max-width: 56ch; color: var(--mute); font-size: var(--step--1); text-wrap: pretty; }
.note code { color: var(--ink); }

@media (max-width: 560px) {
  .tbl th, .tbl td { display: block; padding: 0.25rem 0 0.25rem; border: 0; }
  .tbl tr { display: block; padding: 0.9rem 0; border-bottom: 1px solid var(--line); }
  .tbl th { width: auto; }
}

/* ---------------------------------------------------------------- foot */

.foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  justify-content: space-between;
  padding: 2.2rem var(--gut);
  border-top: 1px solid var(--ink);
  font-family: "JetBrains Mono", monospace;
  font-size: var(--step--1);
  color: var(--mute);
}
.foot span:first-child { color: var(--ink); font-weight: 700; letter-spacing: 0.02em; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .caret { animation: none; opacity: 1; }
}