/* Heapzero site. Paper identity, light and dark from the system setting. */

@font-face {
  font-family: "Newsreader";
  src: url("fonts/Newsreader-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Newsreader";
  src: url("fonts/Newsreader-Italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Newsreader";
  src: url("fonts/Newsreader-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Newsreader Display";
  src: url("fonts/NewsreaderDisplay-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light dark;
  --bg: #F4F3EF;
  --surface: #FBFAF7;
  --sunken: #E9E7E1;
  --ink: #1D1F1C;
  --ink-2: #33352F;
  --muted: #5F5E58;
  --line: #DFDCD3;
  --accent: #2F6B4F;
  --accent-ink: #2F6B4F;
  --on-accent: #FFFFFF;
  --accent-soft: rgba(47, 107, 79, .10);
  --fade: #8A5E22;
  --bezel: #1D1F1C;
  --shadow: 0 1px 2px rgba(29, 31, 28, .06), 0 24px 48px -24px rgba(29, 31, 28, .28);

  --f-ui: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --f-serif: "Newsreader", "New York", Georgia, serif;
  --f-display: "Newsreader Display", "Newsreader", "New York", Georgia, serif;

  --gutter: 16px;
  --max: 1080px;
  --read: 680px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161614;
    --surface: #201F1C;
    --sunken: #262521;
    --ink: #ECE9E1;
    --ink-2: #D6D3CA;
    --muted: #A9A69C;
    --line: #34322D;
    --accent: #3A7A5A;
    --accent-ink: #8BC7A6;
    --on-accent: #FFFFFF;
    --accent-soft: rgba(125, 190, 154, .14);
    --fade: #D3A462;
    --bezel: #0B0B0A;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 24px 48px -24px rgba(0, 0, 0, .7);
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--f-ui);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent-ink); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 3px solid var(--accent-ink);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  background: var(--surface);
  color: var(--ink);
  padding: 10px 14px;
  border-radius: 10px;
  z-index: 10;
}
.skip:focus { top: 12px; }

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
@media (min-width: 720px) { :root { --gutter: 32px; } }

/* ---------- header ---------- */
.site-head { border-bottom: 1px solid var(--line); }
.site-head .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { display: block; width: auto; height: 30px; }
.site-nav { display: flex; gap: 4px; }
.site-nav a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 15px;
  padding: 8px 10px;
  border-radius: 999px;
}
.site-nav a:hover { background: var(--sunken); }
.site-nav a[aria-current="page"] { color: var(--ink); background: var(--sunken); }

/* ---------- type ---------- */
.kicker {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}
h1, h2, h3 { font-family: var(--f-serif); font-weight: 500; color: var(--ink); }
.display {
  font-family: var(--f-display);
  font-size: clamp(44px, 6.4vw, 74px);
  line-height: .98;
  text-wrap: balance;
  letter-spacing: -.02em;
  margin: 0;
}
.lede {
  font-family: var(--f-serif);
  font-size: clamp(19px, 2.2vw, 22px);
  line-height: 1.45;
  color: var(--ink-2);
  max-width: 34ch;
  margin: 22px 0 0;
}

/* ---------- hero ---------- */
.hero { padding: 56px 0 40px; }
.hero .wrap {
  display: grid;
  gap: 48px;
  align-items: center;
}
@media (min-width: 860px) {
  .hero { padding: 88px 0 72px; }
  .hero .wrap { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 48px; }
}

.status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-top: 32px;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px 11px 14px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  font-size: 15px;
}
.pill svg { width: 16px; height: 16px; flex: none; }
.status .note { font-size: 15px; color: var(--muted); }

/* ---------- phone frame ---------- */
.phone {
  position: relative;
  width: min(300px, 78vw);
  margin: 0 auto;
  padding: 10px;
  border-radius: 48px;
  background: var(--bezel);
  box-shadow: var(--shadow);
}
.phone::before {
  content: "";
  position: absolute;
  top: 20px;
  left: 50%;
  width: 30%;
  height: 22px;
  transform: translateX(-50%);
  background: #000;
  border-radius: 999px;
  z-index: 1;
}
.phone img {
  width: 100%;
  border-radius: 38px;
  aspect-ratio: 640 / 1391;
  background: #F4F3EF;
}
.phone.small { width: min(260px, 70vw); }

/* ---------- sections ---------- */
.band { padding: 64px 0; border-top: 1px solid var(--line); }
@media (min-width: 860px) { .band { padding: 96px 0; } }

.band .num {
  font-family: var(--f-display);
  font-size: 56px;
  line-height: 1;
  color: var(--accent-ink);
  margin: 0 0 12px;
}
.band h2 {
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.08;
  letter-spacing: -.012em;
  margin: 0;
  max-width: 18ch;
  text-wrap: balance;
}
.band p.body {
  font-size: 18px;
  color: var(--ink-2);
  max-width: 44ch;
  margin: 18px 0 0;
}

.split { display: grid; gap: 40px; align-items: center; }
@media (min-width: 860px) {
  .split { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 64px; }
  .split.flip > :first-child { order: 2; }
}

/* share flow: a typographic diagram, no screenshot */
.flow {
  list-style: none;
  margin: 0;
  padding: 24px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  display: grid;
  gap: 4px;
}
.flow li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 14px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.flow li:last-child { border-bottom: 0; }
.flow .step {
  font-family: var(--f-display);
  font-size: 30px;
  line-height: 1;
  color: var(--muted);
}
.flow strong {
  display: block;
  font-family: var(--f-serif);
  font-weight: 500;
  font-size: 21px;
  line-height: 1.25;
}
.flow span.small { font-size: 15px; color: var(--muted); }
.sources { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.chip {
  font-size: 13px;
  font-weight: 600;
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--sunken);
  color: var(--ink-2);
}
.chip.soon { background: transparent; border: 1px dashed var(--line); color: var(--muted); font-weight: 500; }

/* "reads it for you" cards */
.cards {
  display: grid;
  gap: 20px;
  margin-top: 40px;
}
@media (min-width: 860px) {
  .cards { grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: start; }
}
.card {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  overflow: hidden;
}
.card figcaption { padding: 18px 20px 6px; }
.card figcaption b {
  display: block;
  font-family: var(--f-serif);
  font-weight: 500;
  font-size: 20px;
  color: var(--ink);
}
.card figcaption span { font-size: 15px; color: var(--muted); }
.card .shot { padding: 10px; }
.card .shot img { border-radius: 16px; background: #F4F3EF; }

.pair { display: flex; gap: 16px; justify-content: center; align-items: flex-start; }
.pair .phone.small { width: min(230px, 44vw); margin: 0; padding: 7px; border-radius: 36px; }
.pair .phone.small img { border-radius: 30px; }
.pair .phone.small::before { top: 14px; height: 16px; }
.pair .phone.small:nth-child(2) { margin-top: 48px; }

.calm-list { margin: 22px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; max-width: 44ch; }
.calm-list li { padding-left: 22px; position: relative; color: var(--ink-2); }
.calm-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-ink);
}

.promise {
  padding: 64px 0 80px;
  border-top: 1px solid var(--line);
  text-align: center;
}
.promise h2 { font-size: clamp(30px, 4vw, 42px); margin: 0 auto; max-width: 22ch; line-height: 1.1; }
.promise p { color: var(--ink-2); max-width: 52ch; margin: 18px auto 0; }

/* ---------- footer ---------- */
.site-foot {
  border-top: 1px solid var(--line);
  padding: 36px 0 48px;
  font-size: 15px;
  color: var(--muted);
}
.site-foot .wrap { display: grid; gap: 18px; }
@media (min-width: 720px) {
  .site-foot .wrap { grid-template-columns: 1fr auto; align-items: start; }
}
.site-foot nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.site-foot a { color: var(--ink-2); }
.site-foot p { margin: 0; }
.site-foot .mail { color: var(--ink-2); user-select: all; }

/* ---------- reading pages (legal, support) ---------- */
.doc { padding: 48px 0 72px; }
.doc .wrap { max-width: calc(var(--read) + 2 * var(--gutter)); }
.doc h1 {
  font-family: var(--f-display);
  font-size: clamp(38px, 6vw, 56px);
  line-height: 1.02;
  letter-spacing: -.015em;
  margin: 0;
}
.doc .meta { color: var(--muted); font-size: 15px; margin: 14px 0 0; }
.doc h2 {
  font-size: 27px;
  line-height: 1.2;
  margin: 52px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 16px;
}
.doc h3 { font-size: 21px; margin: 30px 0 0; line-height: 1.3; }
.doc p, .doc li { color: var(--ink-2); }
.doc p { margin: 14px 0 0; }
.doc ul, .doc ol { margin: 14px 0 0; padding-left: 22px; }
.doc li { margin: 6px 0; }
.doc li::marker { color: var(--muted); }
.doc strong { color: var(--ink); font-weight: 600; }

.summary {
  margin: 32px 0 0;
  padding: 22px 24px;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.summary h2 {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 22px;
}
.summary ul { margin-top: 10px; }

.toc {
  margin: 28px 0 0;
  padding: 18px 22px;
  border-radius: 16px;
  background: var(--sunken);
  font-size: 15px;
}
.toc p { margin: 0 0 6px; font-weight: 600; color: var(--ink); }
.toc ol { margin: 0; columns: 2 220px; column-gap: 28px; }
.toc li { margin: 4px 0; break-inside: avoid; }

.table-scroll { overflow-x: auto; margin: 18px 0 0; -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; font-size: 15px; min-width: 520px; }
th, td {
  text-align: left;
  vertical-align: top;
  padding: 10px 14px 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
  line-height: 1.45;
}
th {
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}
td:first-child { color: var(--ink); font-weight: 600; }

.callout {
  margin: 18px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--accent-ink);
  background: var(--accent-soft);
  border-radius: 0 12px 12px 0;
}
.callout p:first-child { margin-top: 0; }

/* FAQ */
.faq { margin-top: 28px; }
.faq details {
  border-bottom: 1px solid var(--line);
  padding: 4px 0;
}
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 32px 16px 0;
  font-family: var(--f-serif);
  font-size: 21px;
  font-weight: 500;
  color: var(--ink);
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 12px;
  font-family: var(--f-ui);
  font-size: 24px;
  font-weight: 300;
  color: var(--muted);
}
.faq details[open] summary::after { content: "\2212"; }
.faq details > *:not(summary) { margin-top: 0; }
.faq details > p:last-child, .faq details > ul:last-child, .faq details > ol:last-child { margin-bottom: 16px; }

.contact-box {
  margin: 40px 0 0;
  padding: 24px;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.contact-box h2 { margin: 0; padding: 0; border: 0; }

/* 404 */
.lost { padding: 96px 0; text-align: center; }
.lost .zero { margin: 0; }
.lost .zero img { display: block; margin: 0 auto; }
.lost h1 { font-size: 34px; margin: 12px 0 0; }
.lost p { color: var(--ink-2); }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
  .site-nav a, .faq summary::after { transition: background-color .15s ease, color .15s ease; }
}

@media print {
  .site-head nav, .skip, .site-foot nav { display: none; }
  body { background: #fff; color: #000; }
}

/* Tables stack into cards on narrow screens instead of scrolling sideways. */
@media (max-width: 560px) {
  table { min-width: 0; }
  thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  table, tbody, tr, td { display: block; }
  tr { padding: 12px 0; border-bottom: 1px solid var(--line); }
  td { border: 0; padding: 2px 0; }
  table.providers td:nth-child(3) { color: var(--muted); font-size: 14px; }
  table.providers td:nth-child(3)::before { content: "Data: "; font-weight: 600; }
}