/* habitinterrupt.com — single stylesheet.
   Tokens verbatim from DESIGN.md §1.1, light mode only (warm white is the locked identity).
   The record-red token is deliberately absent: red never appears on this site.
   Radius 0 by absence — the corner-rounding property is never written here.
   No shadows. Rules do the structural work: 3px carbon section rules, 1px hairline dividers. */

@font-face {
  font-family: "Archivo Black";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/ArchivoBlack-Regular.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/IBMPlexMono-Regular.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("fonts/IBMPlexMono-Medium.woff2") format("woff2");
}
@font-face {
  font-family: "Newsreader";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/Newsreader-Italic.woff2") format("woff2");
}

:root {
  --carbon: #191919;
  --paper: #FCFCFA;
  --paper-raised: #F3F2EE;
  --gray: #6E6B66; /* 5.16:1 on paper — clears AA for body text (darkened from #7A7772 on 2026-08-21 to match the app token) */
  --hairline: #E3E1DC;
  --font-display: "Archivo Black", "Arial Black", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --pad: 20px;
}

@media (min-width: 900px) {
  :root { --pad: 40px; }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  color-scheme: light only;
}

body {
  background: var(--paper);
  color: var(--carbon);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

a {
  color: var(--carbon);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

/* ---- layout: sections are full-bleed; .content constrains and pads the prose.
        Flush left always — prose is never centered. ---- */

.content {
  padding-left: var(--pad);
  padding-right: var(--pad);
  max-width: calc(42rem + 2 * var(--pad));
}

.content-wide {
  padding-left: var(--pad);
  padding-right: var(--pad);
  max-width: calc(64rem + 2 * var(--pad));
}

/* ---- rules ---- */

.rule-3 {
  border: 0;
  border-top: 3px solid var(--carbon);
}

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

.site-header {
  padding-top: 20px;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: uppercase;
  line-height: 0.92;
  letter-spacing: -0.01em;
  font-size: clamp(1.5rem, 4.5vw, 2.75rem);
}

.wordmark span {
  display: block;
}

.wordmark a {
  text-decoration: none;
}

.site-header .rule-3 {
  margin-top: 12px;
}

.meta {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  padding-top: 10px;
}

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

.hero {
  padding-top: clamp(20px, 5vh, 72px);
  padding-bottom: 40px;
}

.display {
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: uppercase;
  line-height: 0.92;
  letter-spacing: -0.01em;
  font-size: clamp(2.6rem, 9vw, 6.5rem);
  overflow-wrap: break-word;
}

.subhead {
  margin-top: 20px;
  font-size: clamp(0.9375rem, 1.5vw, 1.125rem);
  max-width: 42rem;
}

.price {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  margin-top: 16px;
}

.price strong {
  font-weight: 500;
}

.cta {
  display: inline-block;
  margin-top: 18px;
  background: var(--carbon);
  color: var(--paper);
  text-decoration: none;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  padding: 14px 20px;
}

.privacy-line {
  margin-top: 14px;
  font-size: 0.875rem;
}

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

.section {
  border-top: 3px solid var(--carbon);
  padding-top: 26px;
  padding-bottom: 44px;
}

.section h2 {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}

.section p + p {
  margin-top: 1em;
}

.features {
  list-style: none;
  margin: 0 0 24px;
}

.features li {
  position: relative;
  padding-left: 1.6em;
  margin-bottom: 10px;
}

.features li::before {
  content: "\2014";
  position: absolute;
  left: 0;
}

/* Newsreader italic: the testimony quote, and nothing else on the site. */
blockquote {
  font-family: "Newsreader", Georgia, "Times New Roman", serif;
  font-style: italic;
  font-size: clamp(1.375rem, 2.4vw, 1.625rem);
  line-height: 1.35;
  margin: 24px 0;
  max-width: 34rem;
}

blockquote + p {
  margin-top: 24px;
}

/* ---- manifesto ledger (section 03 and the privacy page): lines between full-bleed rules ---- */

.manifesto {
  list-style: none;
  border-top: 3px solid var(--carbon);
  border-bottom: 3px solid var(--carbon);
  margin: 24px 0;
}

.manifesto li {
  padding: 13px var(--pad);
  border-bottom: 1px solid var(--hairline);
  font-weight: 600;
  font-size: 1.0625rem;
}

.manifesto li:last-child {
  border-bottom: 0;
}

/* ---- the deal: mono ledger lines ---- */

.ledger {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.0625rem;
}

.section p + .ledger,
.section .ledger + p {
  margin-top: 1.25em;
}

/* ---- footer ---- */

.site-footer {
  border-top: 3px solid var(--carbon);
  padding-top: 26px;
  padding-bottom: 56px;
}

.support {
  max-width: 42rem;
}

.footer-meta {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  margin-top: 32px;
}

.footer-nav {
  margin-top: 20px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.badge {
  display: inline-block;
  line-height: 0;
}

.badge img {
  display: block;
  height: 48px;
  width: auto;
  max-width: 100%;
}

/* ---- privacy page ---- */

.page {
  padding-top: 36px;
  padding-bottom: 56px;
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.page h2 {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  margin: 28px 0 10px;
}

.page p + p {
  margin-top: 1em;
}

.page .manifesto li {
  font-size: 1rem;
}

/* ---- 404 ---- */

.fof {
  padding-top: 36px;
  padding-bottom: 56px;
}

.fof .meta {
  padding-top: 24px;
}