/* NODEZERO website. Same tokens as the app (src/styles/theme.css):
   dark surfaces, one lime accent line, figures in JetBrains Mono. */

@font-face {
  font-family: "Public Sans";
  src: url("assets/fonts/public-sans-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Public Sans";
  src: url("assets/fonts/public-sans-latin-ext-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("assets/fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 800;
  font-display: swap;
}

:root {
  --ground: #161618;
  --surface: #111113;
  --raised: #1f1f22;
  --border: #242427;
  --control: #3a3a3e;
  --text: #f4f4f5;
  --text-2: #c9cacd;
  --muted: #8b8d93;
  --accent: #b9f36d;
  --accent-ink: #0d1208;
  --accent-soft: #b9f36d1f;
  --negative: #ef6b7f;
  --amber: #e5b551;
  --ct: #7eb2e8;
  --dire: #ef6b7f;
  --font: "Public Sans", "Segoe UI", system-ui, sans-serif;
  --font-figures: "JetBrains Mono", Consolas, monospace;
  --wrap: 1120px;
  --gutter: 24px;
  color-scheme: dark;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--ground);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.125rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: var(--text); text-decoration-color: var(--control); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
code { font-family: var(--font-figures); font-size: 0.875em; background: var(--raised); border-radius: 4px; padding: 0.05em 0.35em; }
h1, h2, h3 { margin: 0; line-height: 1.15; }
h3 { font-size: 1.0625rem; font-weight: 650; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

.skip { position: absolute; left: -999px; top: 8px; }
.skip:focus { left: 8px; z-index: 10; background: var(--accent); color: var(--accent-ink); padding: 8px 12px; border-radius: 6px; }

/* Header: a plain bar, one tone above the page. */
.top { position: sticky; top: 0; z-index: 5; background: var(--surface); }
.top-row { display: flex; align-items: center; gap: 28px; height: 60px; }
.brand { flex-shrink: 0; display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 750; letter-spacing: 0.02em; }
.top nav { display: flex; gap: 22px; margin-left: auto; }
.top nav a { color: var(--text-2); text-decoration: none; font-size: 0.9375rem; white-space: nowrap; transition: color 0.15s; }
.top nav a:hover { color: var(--text); }

/* Buttons: flat lime, one radius. */
.button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 22px;
  background: var(--accent); color: var(--accent-ink);
  font-weight: 700; text-decoration: none; border-radius: 6px;
  transition: background-color 0.15s, transform 0.12s;
}
.button:hover { background: #c8f78a; }
.button:active { transform: scale(0.97); }
.button-small { min-height: 36px; padding: 0 14px; font-size: 0.9375rem; }
.button-large { min-height: 60px; padding: 0 34px; font-size: 1.1875rem; }
.link { color: var(--text-2); }
.button-ghost { background: var(--raised); color: var(--text); border: 0; font: inherit; font-weight: 650; cursor: pointer; }
.button-ghost:hover { background: var(--control); }

/* Phone visitors: the installer needs a Windows PC. */
.pc-note {
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px;
  margin-top: 24px; padding: 16px; background: var(--surface); border-radius: 6px;
}
.pc-note[hidden] { display: none; }
.pc-note p { margin: 0; flex: 1 1 100%; color: var(--text-2); font-size: 1rem; }
.pc-note-status { color: var(--accent); font-size: 0.9375rem; }

/* Hero: the title across the page, the app beside the words below it. */
.hero { padding-top: 72px; }
.hero h1 { font-size: clamp(2.125rem, 5.4vw, 4.75rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.02; max-width: 17ch; }
.hero-grid { display: grid; grid-template-columns: 4fr 8fr; gap: 48px; margin-top: 40px; align-items: start; }
.lede { margin: 0; color: var(--text-2); font-size: 1.1875rem; line-height: 1.55; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; margin-top: 28px; }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 24px; margin: 40px 0 0; }
.facts dt { color: var(--muted); font-size: 0.875rem; }
.facts dd { margin: 2px 0 0; font-size: 1.25rem; font-weight: 650; font-variant-numeric: tabular-nums; }

/* The app's screens: tabs above one picture. */
.screen-tabs { display: flex; flex-wrap: wrap; gap: 4px 6px; }
.screen-tabs button {
  appearance: none; border: 0; cursor: pointer; border-radius: 6px;
  padding: 8px 12px; background: transparent;
  color: var(--muted); font: inherit; font-size: 0.9375rem;
  transition: background-color 0.15s, color 0.15s;
}
.screen-tabs button:hover { color: var(--text); background: var(--surface); }
.screen-tabs button[aria-selected="true"] { color: var(--accent-ink); background: var(--accent); font-weight: 650; }
.monitor { margin: 12px 0 0; padding: 0; background: var(--surface); border-radius: 6px; overflow: hidden; }
.monitor img { transition: opacity 0.18s; }
.monitor img.swap { opacity: 0.35; }

/* Sections */
.section { padding-top: 168px; }
.section h2 { font-size: clamp(2rem, 4vw, 3.25rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.05; }
.section-lede { max-width: 56ch; margin: 20px 0 0; color: var(--text-2); font-size: 1.125rem; }
.note { margin: 20px 0 0; color: var(--muted); font-size: 1rem; max-width: 56ch; }

/* The buy call: a whole field of the surface tone. */
.buy { margin-top: 168px; padding: 112px 0; background: var(--surface); }
.buy-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 64px; align-items: center; }
.buy-form { margin-top: 36px; display: grid; gap: 24px; }
.buy-form fieldset { margin: 0; padding: 0; border: 0; }
.buy-form legend, .field label { display: block; margin-bottom: 10px; color: var(--text-2); font-size: 1rem; }
.choice { display: inline-flex; gap: 4px; padding: 4px; background: var(--ground); border-radius: 8px; }
.choice label { position: relative; cursor: pointer; }
.choice input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.choice span {
  display: block; min-width: 64px; padding: 10px 16px; border-radius: 6px; text-align: center;
  color: var(--text-2); font-weight: 650; transition: background-color 0.15s, color 0.15s;
}
.choice label:hover span { color: var(--text); }
.choice input:checked + span { background: var(--raised); color: var(--text); }
.choice input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.choice-wide span { min-width: 52px; }
.field { display: grid; grid-template-columns: 1fr auto; align-items: baseline; }
.field label { margin: 0; }
.field output { font-size: 1.25rem; font-weight: 650; font-variant-numeric: tabular-nums; }
.field input { grid-column: 1 / -1; margin-top: 12px; width: 100%; accent-color: var(--accent); height: 28px; cursor: pointer; }

.call { padding: 36px 40px 40px; background: var(--ground); border-radius: 8px; border-top: 3px solid var(--accent); min-height: 420px; display: flex; flex-direction: column; }
.call-label { margin: 0; color: var(--text-2); font-size: 1rem; }
.call-word {
  margin: auto 0; padding: 32px 0; font-size: clamp(3rem, 7vw, 6rem); font-weight: 850; letter-spacing: -0.03em; line-height: 1;
  color: var(--accent);
}
.call-word[data-tone="save"] { color: var(--amber); }
.call-word[data-tone="force"] { color: var(--negative); }
.call.changed .call-word { animation: settle 0.32s cubic-bezier(0.2, 0.8, 0.2, 1); }
@keyframes settle { from { opacity: 0.2; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.call-reason { margin: 0; font-size: 1.125rem; color: var(--text); max-width: 44ch; }
.call-money { display: flex; flex-wrap: wrap; gap: 16px 48px; margin: 24px 0 0; }
.call-money dt { color: var(--muted); font-size: 0.875rem; }
.call-money dd { margin: 4px 0 0; font-size: 1.375rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.bonus { display: inline-flex; gap: 4px; vertical-align: middle; }
.bonus i { width: 22px; height: 7px; border-radius: 2px; background: var(--raised); transition: background-color 0.2s; }
.bonus i.on { background: var(--amber); }

/* Features: words above, the app's own crop below, alternating sides. */
.feature { margin-top: 96px; }
.feature:first-of-type { margin-top: 56px; }
.feature-head { display: grid; grid-template-columns: 5fr 7fr; gap: 48px; align-items: start; }
.feature-head h3 { font-size: clamp(1.5rem, 2.6vw, 2.125rem); font-weight: 780; letter-spacing: -0.02em; line-height: 1.1; }
.feature-head ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.feature-head li { color: var(--text-2); font-size: 1.0625rem; }
.feature-head li strong { color: var(--text); font-weight: 650; }
.crop { margin: 32px 0 0; border-radius: 6px; overflow: hidden; background: var(--surface); }
.crop img { width: 100%; }
.crop-tall { width: 78%; }

/* Fair play and FAQ: heading on the left, the content on the right. */
.split { display: grid; grid-template-columns: 5fr 7fr; gap: 64px; align-items: start; }
.ledger { display: grid; gap: 8px; }
.ledger-col { padding: 28px 32px; border-radius: 8px; }
.ledger-yes { background: #18200f; }
.ledger-no { background: #22161a; }
.ledger h3 { font-size: 1.125rem; }
.marks { list-style: none; margin: 14px 0 0; padding: 0; }
.marks li { position: relative; padding: 7px 0 7px 30px; color: var(--text); }
.marks li::before {
  position: absolute; left: 0; top: 10px; width: 18px; height: 18px; border-radius: 4px;
  display: grid; place-items: center; font-size: 0.75rem; font-weight: 800; line-height: 1;
}
.marks-yes li::before { content: "+"; background: #2b3b17; color: #c6f58a; }
.marks-no li::before { content: "×"; background: #3d2229; color: #f08c9b; }

.steps { list-style: none; counter-reset: step; margin: 48px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.steps li { counter-increment: step; }
.steps li::before { content: counter(step); display: block; font-size: 3rem; font-weight: 800; letter-spacing: -0.03em; line-height: 1; color: var(--accent); margin-bottom: 16px; }
.steps h3 { font-size: 1.125rem; }
.steps p { margin: 10px 0 0; color: var(--text-2); font-size: 1rem; }
.steps .scan { font-size: 0.9375rem; }
.steps .scan-clean [data-scan-text]::before { content: "✓ "; color: var(--accent); font-weight: 700; }
.steps .scan-note { font-size: 0.875rem; color: var(--muted); }
.steps .hash { margin-top: 10px; font-size: 0.875rem; color: var(--text-2); }
.steps .hash summary { cursor: pointer; width: fit-content; }
.steps .hash p { font-size: inherit; margin-top: 6px; }
.sha { word-break: break-all; }
.flag { white-space: nowrap; }
.copy { font: inherit; font-size: 0.8125rem; font-weight: 650; color: var(--accent); background: transparent; border: 1px solid var(--control); border-radius: 4px; padding: 0.1em 0.5em; margin-left: 2px; cursor: pointer; vertical-align: baseline; }
.copy:hover { background: var(--raised); }
.copy:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.faq { display: grid; gap: 8px; }
.faq details { background: var(--surface); border-radius: 6px; transition: background-color 0.15s; }
.faq details:hover { background: var(--raised); }
.faq summary { cursor: pointer; padding: 20px 24px; font-weight: 650; font-size: 1.0625rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-weight: 700; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0; padding: 0 24px 22px; color: var(--text-2); max-width: 65ch; }

.closing { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 28px; padding-top: 200px; padding-bottom: 160px; }
.closing h2 { font-size: clamp(2.25rem, 5.4vw, 4.75rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.02; }

.foot { background: var(--surface); padding: 48px 0 56px; color: var(--muted); font-size: 0.9375rem; }
.foot a { color: var(--text-2); }
.foot p { margin: 0 0 8px; max-width: 70ch; }
.foot .small { font-size: 0.8125rem; }
.foot-name { font-size: clamp(3rem, 12vw, 10rem); font-weight: 850; letter-spacing: -0.045em; line-height: 0.9; color: var(--raised); margin-bottom: 32px !important; max-width: none !important; }

/* Entrances: only on a page whose script runs (main.js adds "js"). */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1); transition-delay: calc(var(--d, 0) * 80ms); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .call.changed .call-word { animation: none; }
  .monitor img, .button { transition: none; }
}

/* What's new */
.tag { font-size: 0.75rem; font-weight: 650; padding: 3px 7px; border-radius: 4px; background: var(--raised); }
.top nav a[aria-current="page"] { color: var(--text); }
.changes-page { padding-top: 72px; padding-bottom: 96px; }
.changes-page h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); font-weight: 800; letter-spacing: -0.03em; }
.since-note p { flex: 1 1 auto; }
.since-note strong { color: var(--text); font-family: var(--font-figures); font-weight: 500; }
.changes { margin-top: 48px; max-width: 760px; border-top: 1px solid var(--border); }
.changes-status { color: var(--muted); padding: 24px 0; margin: 0; }
.change { padding: 32px 0; border-bottom: 1px solid var(--border); scroll-margin-top: 80px; }
.change.is-target { border-left: 2px solid var(--accent); margin-left: -18px; padding-left: 16px; }
.change-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 12px; }
.change-head h2 { font-family: var(--font-figures); font-size: 1.5rem; font-weight: 600; letter-spacing: 0; }
.change-head h2 a { text-decoration: none; }
.change-head h2 a:hover { color: var(--accent); }
.change-head time { margin-left: auto; color: var(--muted); font-size: 0.9375rem; }
.tag-latest { color: var(--accent); }
.tag-new { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
.change-body { color: var(--text-2); }
.change-body h3 { margin: 24px 0 0; color: var(--text); }
.change-body p { margin: 16px 0 0; }
.change-body > p:first-child { color: var(--text); font-size: 1.125rem; }
.change-body ul { margin: 12px 0 0; padding-left: 20px; }
.change-body li { margin: 8px 0; }
.change-body li::marker { color: var(--muted); }
.change-body strong { color: var(--text); font-weight: 600; }
.change-links { margin: 20px 0 0; font-size: 0.9375rem; color: var(--muted); }
.change-links a { color: var(--text-2); }

/* 404 page */
.lost { min-height: 100svh; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: 0; padding-top: 48px; padding-bottom: 48px; }
.lost-code { margin: 32px 0 8px; font-family: var(--font-figures); color: var(--accent); font-size: 1rem; }
.lost h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); font-weight: 800; letter-spacing: -0.03em; }

/* Narrow screens */
@media (max-width: 960px) {
  /* The menu gets tight; the footer keeps the "How it was built" link. */
  .top nav { gap: 16px; }
  .top nav .nav-extra { display: none; }
  .hero-grid, .buy-grid, .split { grid-template-columns: 1fr; gap: 40px; }
  .feature-head { grid-template-columns: 1fr; gap: 20px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .facts { grid-template-columns: repeat(4, auto); justify-content: start; }
}
@media (max-width: 800px) {
  .top nav .nav-wide { display: none; }
}
@media (max-width: 640px) {
  :root { --gutter: 16px; }
  .top nav { display: none; }
  .top-row { justify-content: space-between; }
  .hero { padding-top: 40px; }
  .hero-grid { margin-top: 24px; }
  .facts { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; }
  .section { padding-top: 112px; }
  .buy { margin-top: 112px; padding: 72px 0; }
  .call { padding: 28px 24px; min-height: 0; }
  .choice { display: flex; }
  .choice label { flex: 1; }
  .choice span { min-width: 0; padding: 12px 8px; }
  .feature { margin-top: 72px; }
  .screen-tabs { flex-wrap: wrap; }
  .actions .button { width: 100%; }
  .closing { padding-top: 136px; padding-bottom: 112px; }
  /* Wide crops would be too small to read: show their left part, larger. */
  .crop img { width: 170%; max-width: none; }
  .crop-tall { width: 100%; }
  .crop-tall img { width: 130%; }
  .change.is-target { margin-left: -12px; padding-left: 10px; }
}