/* Postcard Video: the app's G2 look (HISTORY.md 2026-09-25). Soft cream by
   day, midnight blue at night, the icon's red, cream and navy stripe along the
   very top. System faces, like the app; the serif is Apple's New York where
   there is one. */

:root {
  --ground: #F7F0E2; --paper: #FFFDF8; --ink: #1C2433; --soft: #4F5A6B; --faint: #7D8594;
  --rule: #E6DCC8; --navy: #3D5673; --red: #E5392C; --red-text: #C0271B; --cream: #F0E6D0;
  --take: #DDE8F4; --mine: #3D5673; --mine-text: #FFFFFF;
  --shadow: 0 1px 2px rgba(28,36,51,.06), 0 8px 24px rgba(28,36,51,.08);
  --serif: ui-serif, "New York", "Iowan Old Style", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, "Segoe UI", Roboto, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #18233A; --paper: #243149; --ink: #F0E6D0; --soft: #C9C1B0; --faint: #9AA3B5;
    --rule: #2E3C57; --red-text: #FF6961; --take: #33587F; --mine-text: #F0E6D0;
    --shadow: 0 1px 2px rgba(0,0,0,.2), 0 8px 24px rgba(0,0,0,.25);
  }
}
:root[data-theme="dark"] {
  --ground: #18233A; --paper: #243149; --ink: #F0E6D0; --soft: #C9C1B0; --faint: #9AA3B5;
  --rule: #2E3C57; --red-text: #FF6961; --take: #33587F; --mine-text: #F0E6D0;
  --shadow: 0 1px 2px rgba(0,0,0,.2), 0 8px 24px rgba(0,0,0,.25);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--ground); color: var(--ink);
  font-family: var(--sans); font-size: 18px; line-height: 1.6;
  padding: 0 16px; overflow-x: hidden;
}
body::before {
  content: ""; position: fixed; inset: 0 0 auto 0; height: 12px; z-index: 10;
  background: repeating-linear-gradient(-45deg,
    var(--red) 0 12px, var(--cream) 12px 24px, var(--navy) 24px 36px, var(--cream) 36px 48px);
}
a { color: inherit; text-decoration-color: color-mix(in srgb, currentColor 35%, transparent); text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }
img { max-width: 100%; height: auto; }

.wrap { max-width: 680px; margin: 0 auto; }
header.top { max-width: 680px; margin: 0 auto; padding: 32px 0 0; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
header.top a.home { white-space: nowrap; display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; font-size: 16px; }
header.top a.home img { width: 32px; height: 32px; border-radius: 8px; box-shadow: var(--shadow); }
header.top nav { display: flex; gap: 18px; font-size: 15px; color: var(--soft); }
header.top nav a { text-decoration: none; white-space: nowrap; }
header.top nav a:hover { color: var(--ink); }

main { max-width: 680px; margin: 0 auto; padding: 40px 0 56px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.15; letter-spacing: -.01em; }
h1 { font-size: clamp(38px, 8vw, 56px); margin: 0 0 10px; }
h2 { font-size: clamp(26px, 5vw, 32px); margin: 56px 0 14px; }
h3 { font-size: 21px; margin: 28px 0 6px; }
p { margin: 0 0 16px; }
.tag { font-size: 14px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--red-text); margin: 0 0 18px; }
.lede { font-size: 21px; line-height: 1.5; color: var(--ink); margin: 0 0 28px; }
.soft { color: var(--soft); }
.small { font-size: 15px; color: var(--faint); }

.hero-icon { width: 96px; height: 96px; border-radius: 22px; box-shadow: var(--shadow); margin: 0 0 26px; display: block; }

.btn {
  display: inline-flex; align-items: center; gap: 10px; font-family: var(--sans); font-weight: 600; font-size: 17px;
  padding: 14px 24px; border-radius: 999px; background: var(--red); color: #fff; text-decoration: none;
  box-shadow: 0 6px 16px rgba(229,57,44,.28); border: 0; cursor: pointer;
}
.btn:hover { filter: brightness(1.05); }
.btn .dot { width: 12px; height: 12px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 3px rgba(255,255,255,.35); }
.btn.quiet { background: transparent; color: var(--ink); box-shadow: none; border: 1.5px solid var(--rule); }
.btn[disabled] { opacity: .5; cursor: default; }
.cta { margin: 0 0 10px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.cta-note { font-size: 15px; color: var(--faint); margin: 0 0 8px; }

.card { background: var(--paper); border-radius: 18px; padding: 22px 22px 6px; box-shadow: var(--shadow); margin: 0 0 20px; }

/* The picture of the app: the real screen's layout (simulator, 1.2 on
   2026-09-26), drawn at the phone's own 402 x 874 points and scaled to fit.
   Not a screenshot: the simulator has no camera. */
.phone-wrap { width: 318px; max-width: 100%; margin: 36px auto 10px; padding: 9px; box-sizing: border-box; }
.phone {
  --s: .7463; margin: 0; width: 300px; height: calc(874px * .7463); position: relative; overflow: hidden;
  border-radius: 44px; box-shadow: 0 0 0 9px #0E1522, var(--shadow), 0 20px 50px rgba(28,36,51,.18);
  background: var(--ground);
}
.phone .scr {
  position: absolute; top: 0; left: 0; width: 402px; height: 874px; transform: scale(var(--s)); transform-origin: 0 0;
  font-family: var(--sans); font-size: 17px; line-height: 1.3; color: var(--ink);
}
.scr .stripe { position: absolute; inset: 0 0 auto 0; height: 12px; background: repeating-linear-gradient(-45deg,
  var(--red) 0 10px, var(--cream) 10px 20px, var(--navy) 20px 30px, var(--cream) 30px 40px); }
.scr .time { position: absolute; top: 22px; left: 58px; font-weight: 600; font-size: 17px; }
.scr .pill {
  position: absolute; top: 60px; left: 14px; height: 50px; padding: 0 8px; display: flex; gap: 6px; align-items: center;
  border-radius: 25px; background: color-mix(in srgb, var(--paper) 70%, transparent);
  box-shadow: 0 1px 3px rgba(28,36,51,.12); z-index: 3;
}
.scr .pill span { width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; color: var(--ink); }
.scr .pill span.on { background: var(--ink); color: var(--ground); }
.scr .pill svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.scr .stamp {
  position: absolute; top: 56px; right: 10px; width: 104px; height: 170px; background: #fff; padding: 10px; z-index: 4;
  filter: drop-shadow(0 3px 6px rgba(28,36,51,.18));
  -webkit-mask: radial-gradient(circle at 5px 5px, #0000 3.6px, #000 4.1px) -5px -5px / 10px 10px, linear-gradient(#000 0 0) content-box;
          mask: radial-gradient(circle at 5px 5px, #0000 3.6px, #000 4.1px) -5px -5px / 10px 10px, linear-gradient(#000 0 0) content-box;
}
.scr .stamp .pic { display: block; width: 100%; height: 100%; }
.scr .rec { position: absolute; top: 236px; right: 34px; width: 56px; height: 56px; border-radius: 50%; background: #fff; display: grid; place-items: center; z-index: 4; box-shadow: 0 2px 8px rgba(28,36,51,.2); }
.scr .rec i { width: 44px; height: 44px; border-radius: 50%; background: var(--red); }
.scr .board {
  position: absolute; top: 118px; left: 14px; right: 14px; height: 300px; z-index: 2; border-radius: 26px; padding: 18px 18px 0;
  background: color-mix(in srgb, var(--paper) 80%, transparent); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: 0 8px 28px rgba(28,36,51,.16); overflow: hidden;
}
.scr .board h4 { margin: 0 0 8px; font-size: 19px; font-weight: 700; font-family: var(--sans); }
.scr .board p { margin: 0; padding: 9px 118px 9px 0; border-top: 1px solid var(--rule); font-size: 18px; }
.scr .board p:nth-of-type(n+3) { padding-right: 0; }
.scr .board h4 + p { border-top: 0; }
.scr .board p.said { color: var(--faint); text-decoration: line-through; }
.scr .board::after { content: ""; position: absolute; bottom: 8px; left: 50%; width: 52px; height: 5px; margin-left: -26px; border-radius: 3px; background: var(--faint); opacity: .5; }
.scr .chat { position: absolute; top: 436px; left: 14px; right: 14px; display: flex; flex-direction: column; gap: 10px; }
.scr .b { max-width: 78%; padding: 11px 15px; border-radius: 20px; }
.scr .b.claude { background: var(--paper); align-self: flex-start; }
.scr .b.mine { background: var(--mine); color: var(--mine-text); align-self: flex-end; }
.scr .b.take { background: var(--take); align-self: flex-end; color: var(--ink); }
.scr .b.take b { display: flex; gap: 6px; align-items: center; font-weight: 600; }
.scr .b.take b svg { width: 20px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.scr .b.take q { display: block; color: var(--soft); margin-top: 2px; }
.scr .chip { display: inline-flex; gap: 6px; align-items: center; margin-top: 10px; padding: 6px 12px; border-radius: 999px; background: var(--ground); font-weight: 600; font-size: 16px; }
.scr .compose { position: absolute; left: 14px; right: 14px; bottom: 34px; display: flex; gap: 10px; align-items: center; }
.scr .compose .plus { width: 44px; height: 44px; border-radius: 50%; background: var(--paper); display: grid; place-items: center; font-size: 28px; font-weight: 300; box-shadow: 0 1px 3px rgba(28,36,51,.12); }
.scr .compose .field { flex: 1; height: 44px; border-radius: 22px; background: var(--paper); color: var(--faint); display: flex; align-items: center; padding: 0 16px; box-shadow: 0 1px 3px rgba(28,36,51,.12); }
.phone-caption { text-align: center; font-size: 14px; color: var(--faint); margin: 0 0 8px; }

ol.steps { list-style: none; padding: 0; margin: 0; counter-reset: s; }
ol.steps li { counter-increment: s; position: relative; padding: 0 0 18px 48px; }
ol.steps li::before {
  content: counter(s); position: absolute; left: 0; top: 0; width: 32px; height: 32px; border-radius: 50%;
  background: var(--navy); color: #fff; font-weight: 700; font-size: 15px; display: grid; place-items: center;
}
ol.steps li b { display: block; }

ul.plain { padding-left: 20px; margin: 0 0 16px; }
ul.plain li { margin: 0 0 8px; }

.faq details { border-top: 1px solid var(--rule); padding: 14px 0; }
.faq details:last-child { border-bottom: 1px solid var(--rule); }
.faq summary { cursor: pointer; font-weight: 600; font-size: 18px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--faint); font-weight: 400; font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { margin: 10px 0 0; color: var(--soft); }

.maker { display: flex; gap: 16px; align-items: flex-start; }
.maker p { margin: 0 0 12px; }

footer.bottom { max-width: 680px; margin: 0 auto; border-top: 1px solid var(--rule); padding: 20px 0 48px; font-size: 15px; color: var(--faint); display: flex; flex-wrap: wrap; gap: 8px 20px; }
footer.bottom a { text-decoration: none; color: var(--soft); }
footer.bottom a:hover { color: var(--ink); }

/* Forms (the feedback page). */
label.field { display: block; font-weight: 600; font-size: 15px; color: var(--soft); margin: 0 0 8px; }
label.field em { font-weight: 400; font-style: normal; color: var(--faint); }
.kinds { display: flex; gap: 8px; margin: 0 0 20px; flex-wrap: wrap; }
.kinds input { position: absolute; opacity: 0; pointer-events: none; }
.kinds span { display: inline-block; font-weight: 600; font-size: 15px; padding: 9px 20px; border-radius: 999px; border: 1.5px solid var(--rule); color: var(--soft); cursor: pointer; }
.kinds input:checked + span { border-color: var(--navy); background: var(--navy); color: #fff; }
.kinds input:focus-visible + span { outline: 2px solid var(--ink); outline-offset: 2px; }
textarea, input[type=text], input[type=email] {
  width: 100%; font: inherit; font-size: 17px; color: var(--ink); background: var(--ground);
  border: 1.5px solid var(--rule); border-radius: 12px; padding: 12px 14px; margin: 0 0 20px;
}
textarea { min-height: 150px; resize: vertical; }
textarea:focus, input:focus { outline: none; border-color: var(--navy); }
input[type=file] { font-size: 14px; color: var(--soft); margin: 0 0 8px; max-width: 100%; }
.hint { font-size: 14px; color: var(--faint); margin: 0 0 20px; }
.honey { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.status { font-size: 15px; color: var(--soft); margin: 14px 0 16px; min-height: 20px; }
.status.bad { color: var(--red-text); }

/* Long reading (privacy, the guide). */
.prose h2 { margin-top: 44px; }
.prose ul { padding-left: 20px; }
.prose li { margin: 0 0 8px; }
.callout { background: var(--paper); border-left: 4px solid var(--red); border-radius: 0 12px 12px 0; padding: 14px 18px; margin: 0 0 20px; box-shadow: var(--shadow); }
.callout p:last-child { margin: 0; }

@media (max-width: 480px) {
  body { font-size: 17px; }
  .lede { font-size: 19px; }
  header.top nav { gap: 14px; }
  .wide { display: none; }
}