/* Mowgli Connect project site.
   One typeface (Atkinson Hyperlegible Next, self-hosted, OFL), one accent (grass green),
   one motif (the mowing path: a thin line that turns back on itself and ends at the robot). */

@font-face {
  font-family: "Atkinson Hyperlegible Next";
  src: url("fonts/atkinson-hyperlegible-next-latin.woff2") format("woff2");
  font-weight: 300 800;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;
  --paper: #fbfcfa;
  --fog: #f1f5f0;
  --ink: #18211b;
  --muted: #5b675f;
  --line: #d9e0da;
  --line-strong: #b9c4bb;
  --grass: #2f7d4a;
  --grass-deep: #266640;
  --grass-wash: #e6f2e9;
  --grass-ink: #1f5a35;
  --on-grass: #ffffff;
  --amber: #b7791b;
  --code-bg: #1b2520;
  --code-ink: #e9efe9;
  --code-muted: #9db3a3;
  --focus: #1f5a35;
  --selection: #d6e9db;
  --radius: 12px;
  --gutter: 16px;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #111613;
  --fog: #181f1a;
  --ink: #e8ede8;
  --muted: #a3ada5;
  --line: #2b342d;
  --line-strong: #3f4b42;
  --grass: #6cc98a;
  --grass-deep: #5bb97a;
  --grass-wash: #1b2a1f;
  --grass-ink: #b2e3c0;
  --on-grass: #0f1a13;
  --amber: #e0a54a;
  --code-bg: #0c110e;
  --code-ink: #e3eae3;
  --code-muted: #8fa495;
  --focus: #b2e3c0;
  --selection: #2a4a34;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #111613;
    --fog: #181f1a;
    --ink: #e8ede8;
    --muted: #a3ada5;
    --line: #2b342d;
    --line-strong: #3f4b42;
    --grass: #6cc98a;
    --grass-deep: #5bb97a;
    --grass-wash: #1b2a1f;
    --grass-ink: #b2e3c0;
    --on-grass: #0f1a13;
    --amber: #e0a54a;
    --code-bg: #0c110e;
    --code-ink: #e3eae3;
    --code-muted: #8fa495;
    --focus: #b2e3c0;
    --selection: #2a4a34;
  }
}

@media (min-width: 48rem) {
  :root { --gutter: 32px; }
}
@media (min-width: 64rem) {
  :root { --gutter: 48px; }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Atkinson Hyperlegible Next", "Segoe UI", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  overflow-wrap: break-word;
}

img, svg { max-width: 100%; }
::selection { background: var(--selection); }

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }
button, input { font: inherit; }
button { cursor: pointer; }

a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.skip-link {
  position: fixed; top: -100px; left: 16px; z-index: 50;
  padding: 10px 14px; background: var(--ink); color: var(--paper);
  border-radius: 8px; text-decoration: none;
}
.skip-link:focus { top: 12px; }

.wrap {
  width: min(1120px, 100% - 2 * var(--gutter));
  margin-inline: auto;
}

p { margin: 0 0 1em; max-width: 64ch; }
h1, h2, h3 { margin: 0; line-height: 1.15; letter-spacing: -.02em; }
h2 { font-size: clamp(1.7rem, 1.3rem + 1.6vw, 2.3rem); font-weight: 700; margin-bottom: .6em; }
h3 { font-size: 1.15rem; font-weight: 650; letter-spacing: -.01em; margin-bottom: .3em; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }

code {
  font-family: ui-monospace, "Cascadia Code", SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .9em;
}
p code, li code, dd code {
  background: var(--fog);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: .08em .35em;
  overflow-wrap: anywhere;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px 24px;
  flex-wrap: wrap;
  padding-block: 14px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  min-height: 44px;
  font-weight: 700; font-size: 1.1rem; letter-spacing: -.02em;
  text-decoration: none; white-space: nowrap;
}
.brand svg { width: 26px; height: 26px; flex: none; }
.mark-tile { fill: var(--grass); }
.mark-path { fill: none; stroke: var(--on-grass); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.mark-robot { fill: var(--on-grass); }

.head-right { display: flex; align-items: center; gap: 4px 6px; margin-left: auto; }
.site-nav { display: flex; flex-wrap: wrap; gap: 2px; }
.site-nav a {
  display: inline-flex; align-items: center; min-height: 40px;
  padding: 6px 11px; border-radius: 8px;
  font-size: .95rem; color: var(--muted); text-decoration: none;
}
.site-nav a:hover { color: var(--ink); background: var(--fog); }

.theme-toggle {
  display: grid; place-items: center; width: 40px; height: 40px; padding: 0;
  border: 0; border-radius: 8px; background: transparent; color: var(--ink);
}
.theme-toggle:hover { background: var(--fog); }
.theme-toggle svg {
  grid-area: 1 / 1; width: 20px; height: 20px;
  fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round;
}
.theme-toggle .sun { display: none; }
:root[data-theme="dark"] .theme-toggle .sun { display: block; }
:root[data-theme="dark"] .theme-toggle .moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .moon { display: none; }
}
.theme-toggle[hidden] { display: none; }

@media (max-width: 40rem) {
  .site-nav a:not(.nav-github) { display: none; }
}

/* Hero */
.hero {
  display: grid; gap: 40px;
  padding-block: 56px 48px;
}
@media (min-width: 56rem) {
  .hero { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 56px; align-items: center; padding-block: 88px 80px; }
}
.hero h1 {
  font-size: clamp(2.5rem, 1.5rem + 4.6vw, 4.4rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -.03em;
  max-width: 13ch;
}
.lead {
  margin: 24px 0 0;
  font-size: clamp(1.1rem, 1rem + .4vw, 1.3rem);
  line-height: 1.5;
  color: var(--muted);
  max-width: 36ch;
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 10px 22px;
  border: 1px solid transparent; border-radius: 10px;
  font-weight: 650; font-size: .98rem; text-decoration: none;
  color: var(--ink);
}
.button.primary { background: var(--grass); border-color: var(--grass); color: var(--on-grass); }
.button.primary:hover { background: var(--grass-deep); border-color: var(--grass-deep); }
.button.secondary { border-color: var(--line-strong); }
.button.secondary:hover { background: var(--fog); }
.hero-note { margin: 22px 0 0; color: var(--muted); font-size: .92rem; max-width: 44ch; }

.hero-art { margin: 0; min-width: 0; }
.hero-art svg { display: block; width: 100%; height: auto; font-family: inherit; }
.art-path { fill: none; stroke: var(--grass); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.art-path.draw { stroke-dasharray: 1600; stroke-dashoffset: 1600; animation: mow 2.6s cubic-bezier(.4, 0, .2, 1) .2s forwards; }
@keyframes mow { to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) {
  .art-path.draw { animation: none; stroke-dashoffset: 0; }
}
.art-stroke { fill: none; stroke: var(--ink); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.art-fill { fill: var(--paper); }
.art-fog { fill: var(--fog); }
.art-grass { fill: var(--grass); }
.art-label { fill: var(--muted); font-size: 15px; }
.art-strong { fill: var(--ink); font-size: 14px; font-weight: 650; }
.art-code { fill: var(--grass-ink); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 14px; font-weight: 600; }
.art-wash { fill: var(--grass-wash); }
.art-lawn { fill: var(--lawn); }
.art-url { font-size: 10px; letter-spacing: -.01em; }
.art-line { stroke: var(--line-strong); }

/* Sections */
.section { padding-block: 56px; }
@media (min-width: 56rem) { .section { padding-block: 80px; } }
.section-head { max-width: 60ch; margin-bottom: 36px; }
.section-head p { color: var(--muted); font-size: 1.05rem; }
.section + .section { border-top: 1px solid var(--line); }
section[id] { scroll-margin-top: 16px; }

/* How it works */
.steps {
  list-style: none; padding: 0; margin: 0;
  display: grid; gap: 28px;
  counter-reset: step;
}
@media (min-width: 48rem) { .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; } }
.steps li { counter-increment: step; padding-top: 18px; border-top: 1px solid var(--line-strong); position: relative; }
.steps li::before {
  content: counter(step);
  display: inline-grid; place-items: center;
  width: 28px; height: 28px; margin-bottom: 14px;
  border-radius: 50%;
  background: var(--grass-wash); color: var(--grass-ink);
  font-weight: 700; font-size: .9rem;
}
.steps h3 { margin-bottom: .3em; }
.steps p { margin: 0; color: var(--muted); }

/* Install band */
.band { background: var(--fog); border-block: 1px solid var(--line); }
.section + .band, .band + .section { border-top: 0; }
.band .section-head p { color: var(--muted); }
.install-grid { display: grid; gap: 40px; }
@media (min-width: 60rem) { .install-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: 64px; align-items: start; } }
.install-intro h2 { margin-bottom: .5em; }
.requirements { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; color: var(--muted); }
.requirements li { padding-left: 18px; position: relative; }
.requirements li::before {
  content: ""; position: absolute; left: 0; top: .7em; width: 8px; height: 2px; background: var(--grass); border-radius: 1px;
}

.install-steps { list-style: none; padding: 0; margin: 0; counter-reset: inst; display: grid; gap: 28px; }
.install-steps > li { counter-increment: inst; position: relative; padding-left: 44px; }
.install-steps > li::before {
  content: counter(inst);
  position: absolute; left: 0; top: 0;
  display: grid; place-items: center; width: 28px; height: 28px;
  border-radius: 50%; background: var(--paper); border: 1px solid var(--line-strong);
  font-weight: 700; font-size: .9rem; color: var(--ink);
}
.install-steps > li + li::after {
  content: ""; position: absolute; left: 13.5px; top: -24px; height: 20px; width: 1px; background: var(--line-strong);
}
.install-steps h3 { margin-bottom: .25em; }
.install-steps p { margin: 0 0 .7em; }
.install-steps p:last-child { margin-bottom: 0; }

.cmd {
  background: var(--code-bg); color: var(--code-ink);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 14px 0 10px;
  max-width: 100%;
}
.cmd pre {
  margin: 0;
  font-family: ui-monospace, "Cascadia Code", SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .9rem; line-height: 1.55;
  white-space: pre-wrap; overflow-wrap: anywhere;
}
.cmd code { background: none; border: 0; padding: 0; font-size: inherit; }
.cmd-bar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 12px; }
.copy {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 40px; padding: 6px 14px;
  border: 1px solid rgb(255 255 255 / 22%); border-radius: 8px;
  background: rgb(255 255 255 / 8%); color: var(--code-ink);
  font-weight: 600; font-size: .92rem;
}
.copy:hover { background: rgb(255 255 255 / 14%); }
.copy:focus-visible { outline-color: var(--code-ink); }
.copy svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.copy-status { font-size: .9rem; color: var(--code-muted); }

.install-more { margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--line); display: grid; gap: 10px; }
.install-more dl { margin: 0; display: grid; gap: 10px 20px; }
@media (min-width: 40rem) { .install-more dl { grid-template-columns: max-content minmax(0, 1fr); } }
.install-more dt { font-weight: 650; }
.install-more dd { margin: 0; color: var(--muted); }
.install-more dd code { background: var(--paper); }
.install-more p { margin: 8px 0 0; }

/* Data route */
.route {
  list-style: none; padding: 0; margin: 36px 0 28px;
  display: grid; gap: 28px;
  position: relative;
}
@media (min-width: 48rem) { .route { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; } }
.route li { position: relative; padding-top: 26px; }
.route li::before {
  content: ""; position: absolute; left: 0; top: 0;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--paper); border: 2px solid var(--grass);
}
.route li.robot::before { background: var(--grass); }
.route li::after {
  content: ""; position: absolute; left: 6px; top: 14px; bottom: -28px; width: 2px; background: var(--grass);
}
.route li:last-child::after { display: none; }
@media (min-width: 48rem) {
  .route li::after { left: 14px; right: -40px; top: 6px; bottom: auto; height: 2px; width: auto; }
}
.route strong { display: block; font-size: 1.1rem; font-weight: 650; }
.route span { color: var(--muted); }
.route-aside {
  border-left: 2px solid var(--line-strong);
  padding: 4px 0 4px 18px;
  margin-top: 28px;
}
.route-aside strong { font-weight: 650; }

/* Safety */
.points {
  list-style: none; padding: 0; margin: 0;
  display: grid; gap: 24px 48px;
}
@media (min-width: 48rem) { .points { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.points li { padding-top: 14px; border-top: 1px solid var(--line); }
.points strong { display: block; font-weight: 650; margin-bottom: 4px; }
.points span { color: var(--muted); }

/* Letter */
.letter { display: grid; gap: 24px; }
@media (min-width: 56rem) { .letter { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 48px; } }
.letter h2 { font-size: clamp(1.5rem, 1.2rem + 1vw, 1.9rem); }
.letter-body p { max-width: 58ch; }
.signature { margin-top: 20px; }
.signature strong { font-weight: 650; }

/* Status */
.status {
  display: grid; gap: 20px 48px;
}
@media (min-width: 56rem) { .status { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); } }
.status-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 14px; max-width: 60ch; }
.status-list li { padding-left: 22px; position: relative; }
.status-list li::before {
  content: ""; position: absolute; left: 0; top: .55em;
  width: 10px; height: 10px; border-radius: 50%; background: var(--grass);
}
.status-list li.todo::before { background: transparent; border: 2px solid var(--amber); width: 6px; height: 6px; }
.status-list span { color: var(--muted); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 32px 48px;
  color: var(--muted); font-size: .92rem;
}
.foot { display: flex; flex-wrap: wrap; gap: 12px 28px; align-items: center; }
.foot-links { display: flex; flex-wrap: wrap; gap: 6px 22px; margin: 0; padding: 0; list-style: none; }
.foot-links a { color: var(--muted); }
.foot-links a:hover { color: var(--ink); }
.foot-note { margin: 16px 0 0; max-width: none; }

/* Install: two ways, as tabs when JavaScript runs */
.tablist {
  display: inline-flex; flex-wrap: wrap; gap: 4px;
  padding: 4px; margin-bottom: 28px;
  background: var(--paper); border: 1px solid var(--line); border-radius: 12px;
}
.tablist[hidden] { display: none; }
.tablist [role=tab] {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 42px; padding: 8px 16px;
  border: 0; border-radius: 9px; background: transparent; color: var(--muted);
  font-weight: 650; font-size: .95rem;
  transition: background-color .2s, color .2s;
}
.tablist [role=tab]:hover { color: var(--ink); }
.tablist [role=tab][aria-selected=true] { background: var(--grass); color: var(--on-grass); }
.tablist svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.way + .way { margin-top: 40px; }
.has-tabs .way + .way { margin-top: 0; }
.way-title { font-size: 1.25rem; margin-bottom: 16px; }
.has-tabs .way-title {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap;
}
.has-tabs .way:not([hidden]) { animation: way-in .3s ease-out; }
@keyframes way-in { from { opacity: 0; transform: translateY(6px); } }
.ph { color: #ffd88a; border-bottom: 1px dashed currentColor; }
.agent-rules { margin: 16px 0 12px; padding: 0; list-style: none; display: grid; gap: 6px; }
.agent-rules li { position: relative; padding-left: 26px; }
.agent-rules li::before {
  content: ""; position: absolute; left: 2px; top: .45em;
  width: 12px; height: 7px; border: solid var(--grass); border-width: 0 0 2px 2px;
  transform: rotate(-45deg);
}

/* Lawn stripes: the install band is mown in wide, barely visible lanes. */
.band {
  background-image: repeating-linear-gradient(-32deg, transparent 0 110px, var(--stripe) 110px 220px);
}
:root { --stripe: rgb(47 125 74 / 2.6%); --lawn: #d7eadc; }
:root[data-theme="dark"] { --stripe: rgb(108 201 138 / 3%); --lawn: #1d3424; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --stripe: rgb(108 201 138 / 3%); --lawn: #1d3424; } }

/* Hero motion: once the connection line is drawn, the map in the phone goes live and the mower
   works its way across the lawn, stripe by stripe. */
.art-stripes {
  fill: none; stroke: var(--grass-wash); stroke-opacity: 1; stroke-width: 12; stroke-linecap: butt; stroke-linejoin: round;
}
.art-mower { display: none; }
@supports (offset-path: path("M0 0")) {
  .art-mower {
    display: block;
    offset-path: path("M322 242h76v14h-76v14h76v14h-76v14h40");
    offset-rotate: 0deg;
    offset-distance: 100%;
  }
  .art-stripes, .art-live { stroke-dasharray: 400; }
  @media (prefers-reduced-motion: no-preference) {
    .art-stripes, .art-live { animation: lawn 9s linear 2.4s infinite both; }
    .art-mower { animation: mower 9s linear 2.4s infinite both; }
  }
}
@keyframes lawn {
  0% { stroke-dashoffset: 400; opacity: 1; }
  80% { stroke-dashoffset: 0; opacity: 1; }
  94% { stroke-dashoffset: 0; opacity: 1; }
  100% { stroke-dashoffset: 0; opacity: 0; }
}
@keyframes mower {
  0% { offset-distance: 0%; }
  80%, 100% { offset-distance: 100%; }
}

/* The mark in the header redraws its path when you point at it. */
.brand .mark-path { stroke-dasharray: 60; stroke-dashoffset: 0; }
@media (prefers-reduced-motion: no-preference) {
  .brand:hover .mark-path { animation: mark-draw .8s ease-in-out; }
}
@keyframes mark-draw { from { stroke-dashoffset: 60; } }
@media (max-width: 40rem) {
  .tablist { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); width: 100%; }
  .tablist [role=tab] { justify-content: center; padding: 8px 10px; font-size: .9rem; line-height: 1.25; text-align: left; }
}

/* Copying: the icon turns into a tick, the button fills with grass, and a mower makes one pass
   over the copied text. */
.cmd { position: relative; overflow: hidden; isolation: isolate; }
.cmd::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(90deg, transparent, rgb(108 201 138 / 16%) 70%, rgb(108 201 138 / 45%) 99%, transparent);
  transform: translateX(-101%);
}
.cmd.mown::after { animation: mow-pass .75s cubic-bezier(.45, 0, .2, 1); }
@keyframes mow-pass {
  0% { transform: translateX(-101%); opacity: 1; }
  75% { transform: translateX(0); opacity: 1; }
  100% { transform: translateX(0); opacity: 0; }
}
.copy { transition: background-color .25s, border-color .25s, color .25s, transform .15s; }
.copy:active { transform: scale(.96); }
.copy.done, .copy.done:hover { background: var(--grass); border-color: var(--grass); color: var(--on-grass); }
.copy-icons { display: grid; width: 16px; height: 16px; }
.copy-icons svg { grid-area: 1 / 1; transition: opacity .2s, transform .25s; }
.copy .i-check { opacity: 0; transform: scale(.6); stroke-width: 2.4; stroke-dasharray: 22; stroke-dashoffset: 22; }
.copy.done .i-copy { opacity: 0; transform: scale(.6) rotate(-12deg); }
.copy.done .i-check { opacity: 1; transform: none; animation: tick .35s ease-out .08s forwards; }
@keyframes tick { to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) {
  .cmd.mown::after, .copy.done .i-check { animation: none; }
  .copy.done .i-check { stroke-dashoffset: 0; }
  .copy, .copy-icons svg { transition: none; }
}