/* TrackMy Sign — sign.rahuldk.in
   Layout: a precise instrument sheet. Flat white paper, 1px rules for structure,
   sharp corners, one ink-blue accent. The hero is a working signing bench. */

:root {
  --paper: #ffffff;
  --ground: #f4f6f9;
  --ink: #0e1626;
  --ink-2: #3a4456;
  --muted: #677285;
  --rule: #dde2e9;
  --rule-strong: #c3cbd6;
  --accent: #1b3a8c;
  --accent-hover: #142c6b;
  --on-accent: #ffffff;
  --logo-bg: #1b3a8c;
  --logo-fg: #ffffff;
  --accent-text: #1b3a8c;
  --accent-tint: #e9eef8;
  --ok: #1f7a37;
  --ok-tint: #e6f2e9;
  --bad: #b42318;
  --bad-tint: #fbeae8;
  --term-bg: #0e1626;
  --term-fg: #cfd6e2;
  --term-dim: #6f7b8f;
  --term-key: #8fb0ff;
  --doc-bg: #ffffff;
  --doc-ink: #1b1f27;
  --doc-rule: #d9dde3;
  --hero-line: #1b3a8c;
  --hero-bg-opacity: 0.2;
  --hero-grid: rgb(27 58 140 / 0.055);
  --band-ink: #0f1d45;
  --band-ink-fg: #e9edf6;
  --band-ink-muted: #a3afcb;
  --band-ink-rule: #29396a;

  --f-display: "Archivo", "Arial Narrow", system-ui, sans-serif;
  --f-body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --gutter: max(20px, env(safe-area-inset-left, 0px));
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #000000;
    --ground: #000000;
    --ink: #f2f2f2;
    --ink-2: #c9c9c9;
    --muted: #8c8c8c;
    --rule: #262626;
    --rule-strong: #3d3d3d;
    --accent: #ffffff;
    --accent-hover: #d6d6d6;
    --on-accent: #000000;
    --accent-text: #ffffff;
    --accent-tint: #1a1a1a;
    --ok: #4fb36b;
    --ok-tint: #000000;
    --bad: #f0716a;
    --bad-tint: #000000;
    --term-bg: #000000;
    --term-fg: #d4d4d4;
    --term-dim: #7a7a7a;
    --term-key: #bdbdbd;
    --band-ink: #000000;
    --band-ink-fg: #f2f2f2;
    --band-ink-muted: #8c8c8c;
    --band-ink-rule: #262626;
    --logo-bg: #ffffff;
    --logo-fg: #000000;
    --hero-line: #ffffff;
    --hero-bg-opacity: 0.17;
    --hero-grid: rgb(255 255 255 / 0.045);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #000000;
  --ground: #000000;
  --ink: #f2f2f2;
  --ink-2: #c9c9c9;
  --muted: #8c8c8c;
  --rule: #262626;
  --rule-strong: #3d3d3d;
  --accent: #ffffff;
  --accent-hover: #d6d6d6;
  --on-accent: #000000;
  --accent-text: #ffffff;
  --accent-tint: #1a1a1a;
  --ok: #4fb36b;
  --ok-tint: #000000;
  --bad: #f0716a;
  --bad-tint: #000000;
  --term-bg: #000000;
  --term-fg: #d4d4d4;
  --term-dim: #7a7a7a;
  --term-key: #bdbdbd;
  --band-ink: #000000;
  --band-ink-fg: #f2f2f2;
  --band-ink-muted: #8c8c8c;
  --band-ink-rule: #262626;
  --logo-bg: #ffffff;
  --logo-fg: #000000;
  --hero-line: #ffffff;
  --hero-bg-opacity: 0.17;
  --hero-grid: rgb(255 255 255 / 0.045);
  color-scheme: dark;
}

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

*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  z-index: 30;
  background: var(--paper);
}
[hidden] {
  display: none !important;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: inherit;
}
h1,
h2,
h3 {
  margin: 0;
  text-wrap: balance;
}
p {
  margin: 0;
}
.mono,
code,
pre {
  font-family: var(--f-mono);
}
code {
  font-size: 0.9em;
  padding: 0 0.3em;
  background: var(--ground);
  border: 1px solid var(--rule);
}
.muted {
  color: var(--muted);
}
.wrap {
  width: 100%;
  max-width: 1760px;
  margin: 0 auto;
  padding-left: max(clamp(20px, 3.2vw, 56px), env(safe-area-inset-left, 0px));
  padding-right: max(clamp(20px, 3.2vw, 56px), env(safe-area-inset-right, 0px));
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 16px;
  top: 16px;
  z-index: 50;
  background: var(--paper);
  padding: 8px 12px;
  border: 1px solid var(--rule-strong);
}

/* --------------------------------------------------------------- buttons */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 2px;
  font: 500 14.5px/1 var(--f-body);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.12s, border-color 0.12s, color 0.12s;
}
.btn svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: square;
}
.btn-primary {
  background: var(--accent);
  color: var(--on-accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
}
.btn-quiet {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--rule-strong);
}
.btn-quiet:hover {
  border-color: var(--ink-2);
}
.btn-light {
  background: #fff;
  color: #0f1d45;
}
.btn-light:hover {
  background: #e9eef8;
}
.btn-lg {
  height: 46px;
  padding: 0 20px;
  font-size: 15.5px;
}
.btn:disabled {
  opacity: 0.5;
  cursor: default;
}

/* ---------------------------------------------------------------- header */

.top {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 20;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.top-row {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 60px;
}
.mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font: 700 17px/1 var(--f-display);
  font-stretch: 112%;
  letter-spacing: -0.01em;
}
.mark.small {
  font-size: 15px;
}
.nav {
  display: flex;
  gap: 26px;
  font-size: 14.5px;
}
.nav a {
  color: var(--ink-2);
  text-decoration: none;
}
.nav a:hover {
  color: var(--accent-text);
}
.top-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}
.icon-btn {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid transparent;
  border-radius: 2px;
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
}
.icon-btn:hover {
  border-color: var(--rule-strong);
}
.icon-btn svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
}
.icon-btn svg path {
  fill: currentColor;
}
.gh {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink);
}
.gh:hover {
  border-color: var(--ink-2);
}
.gh svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}
.gh-stars {
  padding-left: 8px;
  border-left: 1px solid var(--rule);
  font-size: 12.5px;
  color: var(--muted);
}

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

.hero {
  position: relative;
  overflow: hidden;
  background-image: linear-gradient(var(--hero-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--hero-grid) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: -1px -1px;
  padding-block: clamp(36px, 4.5vw, 64px) clamp(36px, 4vw, 56px);
  border-bottom: 1px solid var(--rule);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(32px, 4vw, 72px);
  align-items: start;
}
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--muted);
  letter-spacing: 0.02em;
}
.dot {
  width: 7px;
  height: 7px;
  background: var(--ok);
}
.hero h1 {
  margin-top: 20px;
  font: 800 clamp(40px, 5.4vw, 92px) / 0.96 var(--f-display);
  font-stretch: 118%;
  letter-spacing: -0.035em;
}
.lede {
  margin-top: 22px;
  max-width: 36em;
  font-size: clamp(16.5px, 1.25vw, 19.5px);
  line-height: 1.6;
  color: var(--ink-2);
}
.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}
.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, auto);
  justify-content: start;
  gap: 0;
  margin: 36px 0 0;
  border-top: 1px solid var(--rule);
}
.hero-facts > div {
  padding: 14px 24px 0 0;
  margin-right: 24px;
  border-right: 1px solid var(--rule);
}
.hero-facts > div:last-child {
  border-right: none;
}
.hero-facts dt {
  font: 500 11px/1.4 var(--f-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.hero-facts dd {
  margin: 4px 0 0;
  white-space: nowrap;
  font-size: 14.5px;
  font-weight: 500;
}

/* bench */
.bench {
  border: 1px solid var(--rule-strong);
  background: var(--ground);
  min-width: 0;
}
.bench-bar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 14px;
  border-bottom: 1px solid var(--rule-strong);
  background: var(--paper);
  font-size: 12px;
  color: var(--muted);
}
.bench-bar span:first-child {
  color: var(--ink);
}
.bench-hint {
  text-align: right;
}
.bench-body {
  padding: 18px;
  display: grid;
  gap: 14px;
}
.doc {
  position: relative;
  background: var(--doc-bg);
  color: var(--doc-ink);
  border: 1px solid var(--doc-rule);
  box-shadow: 0 1px 2px rgb(14 22 38 / 0.08);
}
.doc-page {
  position: relative;
  aspect-ratio: 1.414 / 1;
  padding: 7% 7% 0;
  font-family: Georgia, "Times New Roman", serif;
  overflow: hidden;
  user-select: none;
  touch-action: none;
}
.doc-co {
  font: 700 clamp(10px, 1.15vw, 13px) / 1.3 var(--f-body);
  letter-spacing: 0.06em;
  text-align: center;
}
.doc-cin {
  margin-top: 2px;
  font-size: clamp(7px, 0.75vw, 9px);
  text-align: center;
  color: #6b7280;
}
.doc-title {
  margin: 4% 0 3%;
  font-size: clamp(9px, 1vw, 12px);
  font-weight: 700;
  line-height: 1.35;
}
.doc-text {
  font-size: clamp(8.5px, 0.95vw, 11.5px);
  line-height: 1.5;
  margin-bottom: 2.5%;
}
.doc-line {
  height: 0.5em;
  margin-top: 2.5%;
  background: repeating-linear-gradient(90deg, #e4e7eb 0 70%, transparent 70% 72%);
  width: 92%;
}
.doc-line.short {
  width: 58%;
}

.stamp {
  position: absolute;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.15em;
  width: 33%;
  height: 17%;
  padding: 0 2.2%;
  font: 400 clamp(6.5px, 0.78vw, 9.5px) / 1.25 var(--f-body);
  color: #111;
  white-space: nowrap;
  overflow: hidden;
}
.stamp strong {
  font-size: 1.22em;
}
.stamp .mono {
  font-size: 0.92em;
}
.stamp-prev {
  left: 7%;
  bottom: 7%;
  border: 1px solid #1f2937;
}
.stamp-new {
  right: 7%;
  bottom: 7%;
  border: 1.5px dashed #1b3a8c;
  background: rgb(233 238 248 / 0.75);
  cursor: grab;
  outline-offset: 3px;
}
.stamp-new.dragging {
  cursor: grabbing;
  box-shadow: 0 6px 16px rgb(27 58 140 / 0.22);
}
.stamp-new.signed {
  border-style: solid;
  background: rgb(255 255 255 / 0.9);
  cursor: default;
}
.stamp-new.signed::after {
  content: "";
  position: absolute;
  right: 4%;
  top: 9%;
  width: 12%;
  aspect-ratio: 1;
  background: no-repeat center / contain
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='m4.5 10.5 3.5 3.5 7.5-8' fill='none' stroke='%231f7a37' stroke-width='2.2'/%3E%3C/svg%3E");
}

.console {
  display: grid;
  gap: 12px;
  min-width: 0;
}
.log {
  list-style: none;
  margin: 0;
  padding: 12px 14px;
  min-height: 9.6em;
  background: var(--term-bg);
  color: var(--term-fg);
  font-size: 12px;
  line-height: 1.6;
  overflow-x: auto;
}
.log li {
  white-space: pre;
}
.log .t {
  color: var(--term-dim);
}
.log .k {
  display: inline-block;
  width: 7ch;
  color: var(--term-key);
}
.log .ok {
  color: #5fd383;
}
.log-idle {
  color: var(--term-dim);
}

.bytes {
  display: grid;
  gap: 6px;
}
.bytes-track {
  display: flex;
  height: 12px;
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  overflow: hidden;
}
.seg {
  display: block;
  height: 100%;
  width: 0;
  transition: width 0.5s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.seg-orig {
  width: 100%;
  background: var(--ink-2);
}
.seg-head,
.seg-tail {
  background: var(--accent);
}
.seg-gap {
  background: repeating-linear-gradient(135deg, var(--accent) 0 3px, var(--accent-tint) 3px 6px);
}
.bytes-key {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 16px;
  font-size: 11.5px;
  color: var(--muted);
}
.bytes-key span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.bytes-key b {
  font-weight: 500;
  color: var(--ink);
}
.k {
  width: 10px;
  height: 10px;
  display: inline-block;
}
.k-orig {
  background: var(--ink-2);
}
.k-new {
  background: var(--accent);
}
.console-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.verdict {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 38px;
  padding: 0 12px;
  background: var(--ok-tint);
  color: var(--ok);
  font-size: 13px;
  font-weight: 500;
}
.verdict svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
}

/* -------------------------------------------------------------- sections */

.band {
  padding-block: clamp(56px, 6vw, 80px);
  border-bottom: 1px solid var(--rule);
}
.band-alt {
  background: var(--ground);
}
.sec-head {
  max-width: 720px;
}
.label {
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-text);
}
.band h2 {
  margin-top: 12px;
  font: 750 clamp(28px, 3.4vw, 42px) / 1.05 var(--f-display);
  font-stretch: 112%;
  letter-spacing: -0.025em;
}
.sec-lede {
  margin-top: 16px;
  max-width: 62ch;
  font-size: 17px;
  color: var(--ink-2);
}

/* compare */
.compare {
  margin-top: 44px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--rule);
}
.cmp {
  margin: 0;
  padding: 24px;
  display: grid;
  gap: 14px;
  align-content: start;
}
.cmp + .cmp {
  border-left: 1px solid var(--rule);
}
.cmp figcaption {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}
.tag {
  padding: 2px 8px;
  font-size: 11.5px;
  font-weight: 500;
}
.tag-ok {
  background: var(--ok-tint);
  color: var(--ok);
}
.tag-bad {
  background: var(--bad-tint);
  color: var(--bad);
}
.cmp-bar {
  display: flex;
  height: 14px;
  border: 1px solid var(--rule-strong);
}
.cmp-rewrite {
  flex: 1;
  background: repeating-linear-gradient(135deg, var(--bad) 0 4px, var(--bad-tint) 4px 8px);
}
.cmp-keep {
  flex: 69;
  background: var(--ink-2);
}
.cmp-add {
  flex: 31;
  background: var(--accent);
}
.cmp-note {
  color: var(--ink-2);
  font-size: 15px;
}
.cmp-note em {
  font-style: normal;
  font-family: var(--f-mono);
  font-size: 0.88em;
}

/* steps: a real sequence */
.steps {
  list-style: none;
  counter-reset: s;
  margin: 56px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
}
.steps li {
  counter-increment: s;
  padding: 22px 28px 0 0;
}
.steps li + li {
  padding-left: 28px;
  border-left: 1px solid var(--rule);
}
.steps li::before {
  content: "Step " counter(s);
  display: block;
  margin-bottom: 10px;
  font: 500 11.5px/1 var(--f-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-text);
}
.steps h3 {
  font: 700 19px/1.2 var(--f-display);
  font-stretch: 108%;
}
.steps p {
  margin-top: 8px;
  color: var(--ink-2);
  font-size: 15px;
}

/* feature groups: a sticky group label beside a grid of cards */
.sec-more {
  margin-top: 14px;
}
.more {
  color: var(--accent-text);
  font-weight: 500;
  text-decoration: none;
}
.more:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.fgroup {
  margin-top: 56px;
  padding-top: 22px;
  border-top: 1px solid var(--ink);
  display: grid;
  grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
  gap: 24px 40px;
}
.fgroup-head {
  position: sticky;
  top: 84px;
  align-self: start;
  display: grid;
  gap: 8px;
  justify-items: start;
}
.fgroup-num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.fgroup-head h3 {
  font: 750 26px/1.1 var(--f-display);
  font-stretch: 112%;
  letter-spacing: -0.02em;
}
.fgroup-head p {
  color: var(--ink-2);
  font-size: 15px;
}
.fgroup-head .more {
  margin-top: 4px;
  font-size: 14.5px;
}
.feats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.feats > li {
  display: flex;
  flex-direction: column;
  padding: 22px 24px 20px;
  background: var(--paper);
}
.feat-ill {
  max-width: 200px;
  margin-bottom: 18px;
}
.feat-tag {
  margin-bottom: 10px;
  font: 500 11.5px/1 var(--f-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-text);
}
.feats h4 {
  margin: 0;
  font: 700 18px/1.25 var(--f-display);
  font-stretch: 108%;
  text-wrap: balance;
}
.feat-desc {
  margin: 8px 0 16px;
  color: var(--ink-2);
  font-size: 15px;
}
.feat-specs {
  list-style: none;
  margin: auto 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--ink-2);
}
.feat-specs li {
  position: relative;
  padding: 7px 0 7px 16px;
  border-bottom: 1px dashed var(--rule);
}
.feat-specs li:last-child {
  border-bottom: 0;
}
.feat-specs li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  background: var(--accent);
}
@media (max-width: 1200px) {
  .fgroup {
    grid-template-columns: minmax(0, 1fr);
  }
  .fgroup-head {
    position: static;
    max-width: 62ch;
  }
}
@media (max-width: 1000px) {
  .feats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 620px) {
  .fgroup {
    margin-top: 44px;
  }
  .feats {
    grid-template-columns: minmax(0, 1fr);
  }
  .feats > li {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 112px;
    column-gap: 16px;
    align-content: start;
    padding: 18px 16px 16px;
  }
  .feat-ill {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: start;
    margin: 0;
  }
  .feat-tag {
    grid-column: 1;
    grid-row: 1;
  }
  .feats h4 {
    grid-column: 1;
    grid-row: 2;
  }
  .feat-desc,
  .feat-specs {
    grid-column: 1 / -1;
  }
}

/* screenshot */
.shot {
  margin: 40px 0 0;
  border: 1px solid var(--rule-strong);
  background: var(--paper);
}
.shot-dark {
  display: none;
}
:root[data-theme="dark"] .shot-light {
  display: none;
}
:root[data-theme="dark"] .shot-dark {
  display: block;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .shot-light {
    display: none;
  }
  :root:not([data-theme="light"]) .shot-dark {
    display: block;
  }
}

/* spec sheet */
.spec-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 56px;
}
.spec {
  margin: 0;
  border-top: 1px solid var(--ink);
}
.spec > div {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--rule);
}
.spec dt {
  font: 500 12px/1.6 var(--f-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.spec dd {
  margin: 0;
  font-size: 15px;
}
.spec dd .mono {
  font-size: 0.88em;
  color: var(--accent-text);
}

/* download (ink band) */
.band-ink {
  background: var(--band-ink);
  color: var(--band-ink-fg);
  border-bottom-color: var(--band-ink-rule);
}
.band-ink .label {
  color: var(--band-ink-muted);
}
.dl {
  margin-top: 36px;
  border: 1px solid var(--band-ink-rule);
}
.dl-tabs {
  display: flex;
  border-bottom: 1px solid var(--band-ink-rule);
  overflow-x: auto;
}
.dl-tabs button {
  padding: 14px 22px;
  border: none;
  border-right: 1px solid var(--band-ink-rule);
  background: transparent;
  color: var(--band-ink-muted);
  font: 500 14.5px/1 var(--f-body);
  cursor: pointer;
  white-space: nowrap;
}
.dl-tabs button[aria-selected="true"] {
  color: var(--band-ink-fg);
  background: rgb(255 255 255 / 0.06);
  box-shadow: inset 0 -2px 0 var(--band-ink-fg);
}
.dl-pane {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
  padding: 28px;
}
.dl-pane[hidden] {
  display: none;
}
.dl-file {
  display: grid;
  gap: 10px;
  align-content: start;
  justify-items: start;
}
.dl-meta {
  font-size: 12.5px;
  color: var(--band-ink-muted);
}
.dl-sum {
  max-width: 100%;
  font-size: 11.5px;
  color: var(--band-ink-muted);
  overflow-wrap: anywhere;
}
.dl-sum button {
  margin-left: 6px;
  padding: 1px 6px;
  border: 1px solid var(--band-ink-rule);
  background: transparent;
  color: var(--band-ink-fg);
  font: inherit;
  cursor: pointer;
}
.dl-steps {
  margin: 0;
  padding-left: 1.3em;
  display: grid;
  gap: 10px;
  font-size: 15px;
  color: var(--band-ink-fg);
}
.dl-steps li::marker {
  font-family: var(--f-mono);
  color: var(--band-ink-muted);
}
.dl-foot {
  margin-top: 20px;
  display: grid;
  grid-template-columns: minmax(0, 0.6fr) minmax(0, 1.4fr);
  gap: 24px;
  align-items: center;
}
.dl-foot h3 {
  font: 700 17px/1.2 var(--f-display);
}
.dl-foot p {
  margin-top: 4px;
  font-size: 14px;
  color: var(--band-ink-muted);
}
.term {
  margin: 0;
  padding: 16px 18px;
  background: var(--term-bg);
  color: var(--term-fg);
  font-size: 13px;
  line-height: 1.65;
  overflow-x: auto;
  border: 1px solid var(--band-ink-rule);
}
.term code {
  padding: 0;
  border: 0;
  background: none;
  font-size: inherit;
}
.term .pr {
  color: var(--term-dim);
  user-select: none;
}
.term .ok {
  color: #5fd383;
}

/* faq */
.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 56px;
}
.faq {
  border-top: 1px solid var(--ink);
}
details {
  border-bottom: 1px solid var(--rule);
}
summary {
  position: relative;
  padding: 18px 40px 18px 0;
  list-style: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 16.5px;
}
summary::-webkit-details-marker {
  display: none;
}
summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font: 400 22px/1 var(--f-mono);
  color: var(--muted);
}
details[open] summary::after {
  content: "−";
}
summary:hover {
  color: var(--accent-text);
}
details p {
  padding: 0 40px 20px 0;
  max-width: 62ch;
  color: var(--ink-2);
}

/* footer */
.foot {
  padding-block: 28px calc(28px + env(safe-area-inset-bottom, 0px));
  font-size: 14px;
}
.foot-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 28px;
}
.foot-row a {
  text-decoration: none;
}
.foot-row a:hover {
  color: var(--accent-text);
}
.foot-note {
  margin: 14px 0 0;
  max-width: 80ch;
  font-size: 12.5px;
  line-height: 1.55;
}
.foot-links {
  margin-left: auto;
  display: flex;
  gap: 22px;
}

/* ------------------------------------------------------------ responsive */

@media (max-width: 1000px) {
  .nav {
    display: none;
  }
  .hero-grid,
  .spec-grid,
  .faq-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }
}
@media (max-width: 720px) {
  .top-row {
    gap: 12px;
  }
  .top-actions {
    gap: 6px;
  }
  .gh-stars {
    display: none;
  }
  .hero-facts dd {
    white-space: normal;
  }
  .hero {
    padding-block: 40px 48px;
  }
  .band {
    padding-block: 64px;
  }
  .gh span:not(.gh-stars) {
    display: none;
  }
  .gh-stars {
    border-left: 0;
    padding-left: 0;
  }
  .compare,
  .steps,
  .dl-pane,
  .dl-foot {
    grid-template-columns: minmax(0, 1fr);
  }
  .cmp + .cmp {
    border-left: none;
    border-top: 1px solid var(--rule);
  }
  .steps li,
  .steps li + li {
    padding: 20px 0;
    border-left: none;
    border-bottom: 1px solid var(--rule);
  }
  .hero-facts {
    grid-template-columns: 1fr;
  }
  .hero-facts > div {
    border-right: none;
    margin-right: 0;
    padding-right: 0;
  }
  .spec > div {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }
  .bench-hint {
    display: none;
  }
  .bench-body {
    padding: 12px;
  }
  .dl-pane {
    padding: 20px;
  }
  .foot-links {
    margin-left: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .seg {
    transition: none;
  }
}

/* signing attribution + policy page */
.dl-sign {
  margin-top: 16px;
  font-size: 13.5px;
  color: var(--band-ink-muted);
}
.dl-sign a,
.policy a {
  color: inherit;
  text-underline-offset: 3px;
}
.band-ink .dl-sign a:hover {
  color: #fff;
}
.policy {
  border-bottom: 0;
}
.policy .sec-lede a {
  color: var(--accent-text);
}
.policy-list {
  margin-top: 40px;
  max-width: 860px;
}
.policy-list dd a {
  color: var(--accent-text);
}

.logo-mark {
  display: block;
  flex-shrink: 0;
}
.logo-mark .lb {
  fill: var(--logo-bg);
}
.logo-mark .lf {
  stroke: var(--logo-fg);
}

/* ------------------------------------------------- wide section headers */
.sec-head.wide {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px 48px;
  align-items: end;
}
.sec-head.wide .sec-lede {
  margin-top: 0;
  max-width: 60ch;
}

/* ------------------------------------------------------- illustrations */
.ill {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}
.ill .s {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.6;
}
.ill .f {
  fill: var(--paper);
}
.ill .pg {
  fill: var(--paper);
}
.ill .m {
  fill: none;
  stroke: var(--rule-strong);
  stroke-width: 3;
}
.ill .a {
  fill: var(--accent);
}
.ill .a-o {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.6;
}
.ill .a-s {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2.2;
  stroke-linecap: square;
}
.ill .d {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.6;
  stroke-dasharray: 5 4;
}
.ill .led {
  fill: var(--ok);
}
.ill .ok-f {
  fill: var(--ok);
}
.ill .ok-s {
  fill: none;
  stroke: #fff;
  stroke-width: 2.4;
}
.ill .t {
  font-size: 13px;
  font-weight: 500;
  fill: var(--ink);
}
.ill .t2 {
  font-size: 10.5px;
  fill: var(--muted);
}
.ill .t3 {
  font: 600 24px var(--f-body);
  fill: var(--ink);
}
.ill .ta {
  font-size: 10.5px;
  font-weight: 500;
  fill: var(--on-accent);
}
.ill .tok {
  fill: var(--ok);
}
.ill .bad-f {
  fill: var(--bad);
}

/* hero chain */
.chain {
  margin-top: clamp(36px, 4vw, 56px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  border: 1px solid var(--rule);
}
.node {
  margin: 0;
  padding: 20px 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  align-content: start;
}
.node .ill {
  max-width: 260px;
}
.node figcaption {
  display: grid;
  gap: 4px;
  font-size: 14px;
  color: var(--ink-2);
}
.node figcaption b {
  font: 700 16px/1.2 var(--f-display);
  font-stretch: 108%;
  color: var(--ink);
}
.link {
  position: relative;
  align-self: stretch;
  display: grid;
  place-items: center;
  width: clamp(120px, 10vw, 170px);
}
.link::before {
  content: "";
  position: absolute;
  left: 0;
  right: 10px;
  top: 50%;
  border-top: 1.5px dashed var(--accent);
}
.link::after {
  content: "";
  position: absolute;
  right: 2px;
  top: calc(50% - 5px);
  border: 5px solid transparent;
  border-left: 8px solid var(--accent);
}
.link span {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(50% + 8px);
  padding: 2px 8px;
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  font-size: 11px;
  color: var(--ink-2);
  white-space: nowrap;
}

/* ------------------------------------------------------------ file map */
.fmap {
  margin-top: 36px;
  border: 1px solid var(--rule-strong);
  padding: 20px;
  display: grid;
  gap: 10px;
  background: var(--ground);
}
.fmap-top {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px 16px;
  font-size: 12.5px;
  color: var(--muted);
}
.fmap-top span:first-child {
  color: var(--ink);
}
.fmap-row,
.fmap-brk {
  display: grid;
  grid-template-columns: 4.6fr 1.5fr 2.4fr 1.6fr;
}
.fmap-row {
  border: 1px solid var(--ink-2);
  background: var(--paper);
}
.fseg {
  position: relative;
  min-width: 0;
  min-height: 118px;
  padding: 14px 14px 16px;
  display: grid;
  align-content: start;
  gap: 4px;
  font-size: 13.5px;
  color: var(--ink-2);
}
.fseg + .fseg {
  border-left: 1px solid var(--ink-2);
}
.fseg b {
  font-size: 14.5px;
  color: var(--ink);
}
.fseg .mono {
  font-size: 12px;
}
.f-orig {
  box-shadow: inset 0 5px 0 var(--ink-2);
}
.f-dict,
.f-tail {
  box-shadow: inset 0 5px 0 var(--accent);
}
.f-gap {
  background: repeating-linear-gradient(135deg, transparent 0 7px, var(--accent-tint) 7px 14px);
  box-shadow: inset 0 5px 0 var(--accent);
}
.tagm {
  display: none;
  font-style: normal;
}
.fmap-brk {
  font-size: 11.5px;
  color: var(--muted);
}
.brk {
  position: relative;
  padding: 12px 6px 0;
  text-align: center;
}
.brk::before {
  content: "";
  position: absolute;
  left: 6px;
  right: 6px;
  top: 0;
  height: 8px;
  border: 1.5px solid var(--ok);
  border-top: 0;
}
.b-hash:first-child {
  grid-column: span 2;
}
.b-excl::before {
  border-color: var(--bad);
  border-style: dashed;
}
.fmap-vs {
  margin-top: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  font-size: 13.5px;
  color: var(--ink-2);
}
.vs-bar {
  height: 12px;
  border: 1px solid var(--rule-strong);
  background: repeating-linear-gradient(135deg, var(--bad) 0 4px, var(--bad-tint) 4px 8px);
}

/* step drawings */
.step-ill {
  max-width: 260px;
  margin-bottom: 14px;
}

/* spec as two columns of rows */
.spec {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 48px;
}
.spec > div {
  grid-template-columns: 10rem minmax(0, 1fr);
}

/* faq in two columns */
.faq {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 48px;
  align-items: start;
}

/* ---------------------------------------------------- responsive (new) */
@media (max-width: 1100px) {
  .chain {
    grid-template-columns: minmax(0, 1fr);
  }
  .link {
    width: auto;
    height: 52px;
  }
  .link span {
    bottom: auto;
    left: calc(50% + 12px);
    transform: none;
    top: 14px;
  }
  .link::before {
    left: 50%;
    right: auto;
    top: 0;
    bottom: 10px;
    border-top: 0;
    border-left: 1.5px dashed var(--accent);
  }
  .link::after {
    right: auto;
    left: calc(50% - 4px);
    top: auto;
    bottom: 2px;
    border: 5px solid transparent;
    border-top: 8px solid var(--accent);
  }
  .node {
    grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
    align-items: center;
  }
}
@media (max-width: 900px) {
  .sec-head.wide,
  .spec,
  .faq {
    grid-template-columns: minmax(0, 1fr);
  }
  .fmap-row {
    grid-template-columns: minmax(0, 1fr);
  }
  .fseg {
    min-height: 0;
  }
  .fseg + .fseg {
    border-left: 0;
    border-top: 1px solid var(--ink-2);
  }
  .tagm {
    display: inline-block;
    position: absolute;
    right: 12px;
    top: 14px;
    font-size: 11px;
    padding: 1px 6px;
    border: 1px solid var(--ok);
    color: var(--ok);
  }
  .f-gap .tagm {
    border-color: var(--bad);
    color: var(--bad);
  }
  .fmap-brk {
    display: none;
  }
  .fmap-vs {
    grid-template-columns: minmax(0, 1fr);
  }
}
@media (max-width: 560px) {
  .node {
    grid-template-columns: minmax(0, 1fr);
    padding: 18px;
  }
  .node .ill {
    max-width: 220px;
  }
  .fmap {
    padding: 12px;
  }
  .spec > div {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* hero background drawing (canvas, drawn in main.js) */
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: var(--hero-bg-opacity);
  pointer-events: none;
}
.hero > .wrap {
  position: relative;
  z-index: 1;
}
.hero-copy {
  position: relative;
}

/* changelog page (release notes rendered by changelog/releases.js) */
.releases {
  margin-top: 40px;
  max-width: 1080px;
  border-top: 1px solid var(--ink);
}
.releases-status {
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
}
.releases a {
  color: var(--accent-text);
  text-underline-offset: 3px;
}
.release {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 16px;
  padding: 28px 0;
  border-bottom: 1px solid var(--rule);
}
.release-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.releases .release-tag {
  font-size: 15px;
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  text-decoration: none;
}
.release h2 {
  margin: 0;
  font: 700 22px/1.2 var(--f-display);
  font-stretch: 112%;
  letter-spacing: -0.015em;
}
.notes {
  margin-top: 12px;
  max-width: 72ch;
  color: var(--ink-2);
  overflow-wrap: anywhere;
}
.notes > * + * {
  margin-top: 10px;
}
.notes > :first-child {
  margin-top: 0;
}
.notes h3,
.notes h4 {
  margin: 20px 0 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}
.notes h4 {
  font-size: 14px;
}
.notes ul,
.notes ol {
  margin-bottom: 0;
  padding-left: 1.3em;
}
.notes li + li {
  margin-top: 4px;
}
.notes pre {
  margin-bottom: 0;
  padding: 12px 14px;
  overflow-x: auto;
  background: var(--ground);
  border: 1px solid var(--rule);
  font-size: 13.5px;
}
.notes pre code {
  padding: 0;
  border: 0;
  background: none;
}
.release-link {
  margin-top: 16px;
  font-size: 14px;
}
@media (max-width: 720px) {
  .release {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }
  .release-meta {
    flex-direction: row;
    align-items: baseline;
    gap: 12px;
  }
  .foot-links {
    flex-wrap: wrap;
    gap: 8px 22px;
  }
}

/* page titles on sub-pages (one h1 per page) */
.band h1 {
  margin-top: 12px;
  font: 750 clamp(30px, 3.8vw, 48px) / 1.05 var(--f-display);
  font-stretch: 112%;
  letter-spacing: -0.025em;
}
.page-hero h1 {
  font: 800 clamp(36px, 4.6vw, 72px) / 1 var(--f-display);
  font-stretch: 118%;
  letter-spacing: -0.035em;
}
.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
  font-size: 12.5px;
  color: var(--muted);
}
.crumbs a {
  color: var(--ink-2);
  text-decoration: none;
}
.crumbs a:hover {
  color: var(--accent-text);
}

/* features page */
.jump {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border: 1px solid var(--rule-strong);
}
.jump a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
}
.jump a + a {
  border-left: 1px solid var(--rule-strong);
}
.jump a:hover {
  background: var(--ground);
  color: var(--accent-text);
}
.jump .mono {
  font-size: 12px;
  font-weight: 500;
  color: var(--accent-text);
}
.jump .jump-n {
  margin-left: auto;
  color: var(--muted);
}
.fds {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.fd {
  display: flex;
  flex-direction: column;
  padding: 28px 28px 24px;
  background: var(--paper);
  scroll-margin-top: 72px;
}
.fd-ill {
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  padding: 22px;
  background: var(--ground);
  border: 1px solid var(--rule);
}
.fd-ill .ill {
  max-width: 260px;
}
.fd h3 {
  font: 700 22px/1.2 var(--f-display);
  font-stretch: 110%;
  letter-spacing: -0.01em;
}
.fd p {
  max-width: 68ch;
}
.fd .fd-lede {
  margin-top: 8px;
  font-size: 16.5px;
  font-weight: 500;
}
.fd p + p:not(.fd-lede) {
  margin-top: 12px;
  color: var(--ink-2);
  font-size: 15.5px;
}
.fd .feat-specs {
  margin-top: auto;
  padding-top: 0;
}
.fd .fd-lede + p {
  margin-top: 14px;
}
.fd p:last-of-type {
  margin-bottom: 20px;
}
.cta-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 24px 48px;
}
.cta-band .cta {
  margin-top: 0;
}
.cta-note {
  margin-top: 12px;
  color: var(--band-ink-muted);
}
.btn-ghost {
  background: transparent;
  color: var(--band-ink-fg);
  border-color: var(--band-ink-rule);
}
.btn-ghost:hover {
  border-color: var(--band-ink-fg);
}
@media (max-width: 1100px) {
  .jump {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .jump a {
    border-top: 1px solid var(--rule-strong);
  }
  .jump a:nth-child(-n + 2) {
    border-top: 0;
  }
  .jump a + a {
    border-left: 0;
  }
  .jump a:nth-child(even) {
    border-left: 1px solid var(--rule-strong);
  }
}
@media (max-width: 900px) {
  .fds,
  .cta-band {
    grid-template-columns: minmax(0, 1fr);
  }
}
@media (max-width: 560px) {
  .jump {
    grid-template-columns: minmax(0, 1fr);
  }
  .jump a:nth-child(2) {
    border-top: 1px solid var(--rule-strong);
  }
  .jump a:nth-child(even) {
    border-left: 0;
  }
  .fd {
    padding: 20px 16px;
  }
  .fd-ill {
    padding: 16px;
  }
}

/* 404 */
.nf-links {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.policy .nf-links .btn-primary {
  color: var(--on-accent);
}
.policy-list dd {
  overflow-wrap: anywhere;
}