styles.css

/* Plainword site. Values come from the Claude Design export; colors are the brand tokens. */

@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 100 700;
  font-display: swap;
  src: url("assets/fonts/ibm-plex-sans-latin.woff2") format("woff2");
}
/* Source Serif 4 is split in two so each file is served directly by the host (under 40 KB).
   The site uses it at 22-64 px in weights 400 and 600, which these files cover in full. */
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("assets/fonts/source-serif-4-core.woff2") format("woff2");
  unicode-range: U+0020-007E, U+00A0, U+00B7, U+2013-2014, U+2018-2019, U+201C-201D, U+2026;
}
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("assets/fonts/source-serif-4-ext.woff2") format("woff2");
  unicode-range: U+00A1-00B6, U+00B8-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+2002, U+2009, U+200B, U+201A, U+201E, U+2022, U+2032-2033, U+2039-203A, U+2044, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215;
}

:root {
  --navy: #15232D;
  --offwhite: #F7F5F0;
  --ink: #3D4A54;
  --muted: #5C6872;
  --card: #FDFCF9;
  --line: #D9DDD8;
  --blue: #1D5A85;
  --lightblue: #8EC3E6;
  --orange: #A84A12;

  /* Roles. Dark mode swaps these, not the tokens above. */
  --page: var(--offwhite);
  --text: var(--ink);
  --heading: var(--navy);
  --label: var(--blue);
  --link: var(--blue);
  --link-hover: var(--navy);
  --surface: var(--card);
  --surface-2: var(--offwhite);
  --rule: var(--line);
  --thead: #E3EDF5;
  --input: #FFFFFF;
  --input-line: var(--line);
  --accent: var(--orange);
  --btn-bg: var(--navy);
  --btn-text: var(--offwhite);
  --mark-ink: var(--navy);
  /* The navy bands: consent and the beta form. */
  --band: var(--navy);
  --band-text: var(--offwhite);
  --band-soft: #C9D3DA;
  --band-muted: #A9B6C0;
  --band-line: #2B3B47;

  --serif: "Source Serif 4", Georgia, serif;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #15232D;
    --text: #D5DDE3;
    --heading: #F7F5F0;
    --label: #8EC3E6;
    --link: #8EC3E6;
    --link-hover: #F7F5F0;
    --muted: #A9B6C0;
    --surface: #1B2C38;
    --surface-2: #15232D;
    --rule: #2F4150;
    --thead: #22384A;
    --input: #0F1A22;
    --input-line: #3A4D5B;
    --accent: #E8A06C;
    --btn-bg: #F7F5F0;
    --btn-text: #15232D;
    --mark-ink: #F7F5F0;
    --band: #0E1820;
    --band-line: #2B3B47;
  }
}

/* Base */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--link); }
a:hover { color: var(--link-hover); }
input, select, textarea, button { font-family: inherit; }
h1, h2, h3, p, blockquote, dl, dd, ol, ul { margin: 0; }
img { max-width: 100%; }

.wrap { max-width: 1200px; margin: 0 auto; padding-left: 16px; padding-right: 16px; }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--label); }
.head { display: flex; flex-direction: column; gap: 10px; }
.h2 { font-family: var(--serif); font-weight: 600; font-size: 40px; line-height: 1.15; color: var(--heading); }
.u { text-decoration: underline; text-underline-offset: 3px; }

/* Header */
.site-header {
  max-width: 1200px; margin: 0 auto; padding: 24px 16px 0;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--heading); }
.brand:hover { color: var(--heading); }
.brand-word { font-weight: 600; font-size: 22px; letter-spacing: -0.01em; }
.mark { color: var(--mark-ink); flex: 0 0 auto; }
.main-nav { display: flex; flex-wrap: wrap; gap: 8px 28px; font-size: 16px; font-weight: 500; }
.main-nav a { text-decoration: none; padding: 10px 0; }

/* 1 Hero */
.hero { padding-top: 72px; padding-bottom: 80px; display: flex; flex-wrap: wrap; align-items: center; gap: 48px; }
.hero-text { flex: 1 1 480px; min-width: 0; display: flex; flex-direction: column; gap: 24px; }
.hero h1 { font-family: var(--serif); font-weight: 600; font-size: 64px; line-height: 1.05; letter-spacing: -0.015em; color: var(--heading); }
.hero-sub { font-size: 20px; line-height: 1.5; max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; padding-top: 8px; }
.btn {
  display: inline-flex; align-items: center; min-height: 52px; padding: 0 28px;
  background: var(--btn-bg); color: var(--btn-text); border: 0; border-radius: 10px;
  text-decoration: none; font-weight: 600; font-size: 17px; cursor: pointer;
}
.btn:hover { color: var(--btn-text); opacity: 0.92; }
.link-strong { font-weight: 500; font-size: 17px; text-decoration: underline; text-underline-offset: 4px; }
.hero-media { flex: 1 1 320px; min-width: 0; }

/* Phone screenshots: 390 x 844 design boards, shown at a fixed width so the text stays legible. */
.phone-shot { display: block; width: 100%; height: auto; border-radius: 28px; border: 1px solid var(--rule); background: var(--surface); box-shadow: 0 12px 32px rgba(21, 35, 45, 0.12); }
.phone-figure { margin: 0; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.phone-figure .phone-shot { max-width: 300px; }
.phone-figure figcaption { font-size: 14px; color: var(--muted); }

/* 2 Who it is for */
.band-who { border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); background: var(--surface); }
.band-who .wrap { padding-top: 36px; padding-bottom: 36px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 12px 40px; }
.who-line { font-family: var(--serif); font-size: 22px; color: var(--heading); font-weight: 600; }
.who-list { font-size: 17px; color: var(--muted); }

/* 3 The difference */
.difference { padding-top: 88px; padding-bottom: 72px; display: flex; flex-direction: column; gap: 28px; }
.table-box { overflow-x: auto; border: 1px solid var(--rule); border-radius: 14px; background: var(--surface); }
.compare { width: 100%; min-width: 760px; border-collapse: collapse; font-size: 16px; line-height: 1.45; }
.compare thead tr { background: var(--thead); }
.compare th, .compare td { text-align: left; padding: 14px 18px; vertical-align: top; }
.compare thead th { font-weight: 600; color: var(--heading); }
.compare thead th:first-child { width: 24%; }
.compare thead th.pn { font-weight: 700; color: var(--label); }
.compare tbody tr { border-top: 1px solid var(--rule); }
.compare tbody th { font-weight: 500; color: var(--heading); }
.compare td.pn { font-weight: 500; color: var(--heading); }
.compare .col { display: none; }
.compare-today { padding-top: 0; }

/* Phones: one card per row, no sideways scroll (spec, change 1). */
@media (max-width: 719px) {
  .table-box { overflow: visible; border: 0; border-radius: 0; background: transparent; }
  .compare, .compare tbody, .compare tr, .compare th, .compare td { display: block; width: auto; }
  .compare { min-width: 0; }
  .compare thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .compare tbody tr { border: 1px solid var(--rule); border-radius: 14px; background: var(--surface); padding: 18px; margin-bottom: 12px; }
  .compare tbody th { padding: 0 0 8px; font-size: 18px; font-weight: 600; }
  .compare td { padding: 8px 0 0; }
  .compare .col { display: block; font-variant-caps: all-small-caps; letter-spacing: 0.06em; font-size: 15px; font-weight: 600; color: var(--muted); }
}

/* 4 How it works */
.how { background: var(--surface); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.how .wrap { padding-top: 88px; padding-bottom: 88px; display: flex; flex-direction: column; gap: 36px; }
.steps { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.step { background: var(--surface-2); border: 1px solid var(--rule); border-radius: 16px; padding: 28px; display: flex; flex-direction: column; gap: 14px; }
.step-head { display: flex; align-items: center; gap: 12px; }
.icon { color: var(--label); flex: 0 0 auto; }
.step p { font-size: 17px; }
/* The five session steps, each with its screen above the words. */
.steps-shots { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.steps-shots .phone-shot { max-width: 260px; align-self: center; border-radius: 24px; box-shadow: none; }
.offline-note { display: flex; align-items: center; gap: 12px; color: var(--heading); font-weight: 500; font-size: 17px; }

/* 5 Consent band */
.consent { background: var(--band); color: var(--band-text); }
.consent .wrap { padding-top: 96px; padding-bottom: 96px; display: flex; flex-direction: column; gap: 28px; }
.consent .eyebrow, .pilot .eyebrow { color: var(--lightblue); }
.consent blockquote { font-family: var(--serif); font-weight: 600; font-size: 44px; line-height: 1.2; letter-spacing: -0.01em; max-width: 1000px; color: var(--band-text); }
.consent-small { font-size: 16px; line-height: 1.5; color: var(--band-soft); max-width: 760px; }

.footnote { font-size: 15px; color: var(--muted); }

/* 6 Coming next: the Mac app */
.next { padding-top: 88px; padding-bottom: 8px; display: flex; flex-direction: column; gap: 16px; }
.next-line { font-family: var(--serif); font-size: 24px; line-height: 1.4; color: var(--heading); max-width: 900px; }

/* 8 Who is building it */
.who { padding-top: 88px; padding-bottom: 88px; display: flex; flex-wrap: wrap; gap: 40px 64px; align-items: flex-start; }
.who-head { flex: 0 1 320px; min-width: 0; display: flex; flex-direction: column; gap: 20px; }
/* Round profile photo. */
.avatar { display: block; width: 128px; height: 128px; border-radius: 50%; object-fit: cover; border: 1px solid var(--rule); background: var(--surface); }
.who-body { flex: 1 1 520px; min-width: 0; display: flex; flex-direction: column; gap: 20px; font-size: 18px; line-height: 1.6; }
.evidence { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; padding: 18px 22px; border: 1px solid var(--rule); border-left: 4px solid var(--label); border-radius: 12px; background: var(--surface); }
.ev-title { font-weight: 600; font-size: 17px; color: var(--heading); }
a.ev-title { color: var(--link); text-decoration: underline; text-underline-offset: 4px; }
.ev-line { color: var(--muted); font-size: 16px; }

/* 9 Pilot form */
.pilot { background: var(--band); color: var(--band-text); }
.pilot .wrap { padding-top: 96px; padding-bottom: 96px; display: flex; flex-wrap: wrap; gap: 48px 64px; align-items: flex-start; }
.pilot-text { flex: 1 1 380px; min-width: 0; display: flex; flex-direction: column; gap: 18px; }
.pilot h2 { font-family: var(--serif); font-weight: 600; font-size: 44px; line-height: 1.1; letter-spacing: -0.01em; color: var(--band-text); }
.pilot-text p { font-size: 19px; line-height: 1.55; color: var(--band-soft); max-width: 480px; }
.form-card { flex: 1 1 460px; min-width: 0; background: var(--surface); color: var(--text); border-radius: 16px; padding: 32px; }
.form-card form { display: flex; flex-direction: column; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 15px; font-weight: 600; color: var(--heading); }
.field .optional { font-weight: 400; color: var(--muted); }
.field input, .field select, .field textarea {
  min-height: 46px; padding: 0 14px; border: 1px solid var(--input-line); border-radius: 8px;
  background: var(--input); font-size: 16px; color: var(--heading); width: 100%;
}
.field select { padding: 0 10px; }
.field textarea { padding: 12px 14px; resize: vertical; }
.field-pair { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 18px; }
.check { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 600; color: var(--heading); }
.check input { width: 20px; height: 20px; margin: 0; flex: 0 0 auto; accent-color: var(--blue); }
.form-card .btn { align-self: flex-start; }
.form-card .btn:disabled { opacity: 0.6; cursor: default; }
.form-note { font-size: 14px; line-height: 1.5; color: var(--muted); }
.form-status { font-size: 15px; color: var(--heading); }
.form-status:empty { display: none; }
.form-done { font-family: var(--serif); font-size: 24px; line-height: 1.35; color: var(--heading); font-weight: 600; }
/* Text for screen readers only. */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
/* Formspree honeypot: off screen, out of the tab order. */
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

/* 10 FAQ */
.faq { padding-top: 88px; padding-bottom: 88px; display: flex; flex-direction: column; gap: 36px; }
.faq dl { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 28px 48px; }
.qa { display: flex; flex-direction: column; gap: 8px; padding-top: 18px; border-top: 1px solid var(--rule); }
.qa dt { font-weight: 600; font-size: 18px; color: var(--heading); }
.qa dd { font-size: 17px; }

/* 11 Footer */
.site-footer { border-top: 1px solid var(--rule); background: var(--surface); }
.site-footer .wrap { padding-top: 36px; padding-bottom: 44px; display: flex; flex-direction: column; gap: 14px; font-size: 15px; color: var(--muted); }
.footer-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; }
.footer-name { color: var(--heading); font-weight: 500; }
.site-footer a { text-decoration: underline; text-underline-offset: 3px; }

/* privacy.html */
.page-privacy { line-height: 1.6; min-height: 100vh; display: flex; flex-direction: column; }
.page-privacy .site-header { width: 100%; }
.privacy-main { max-width: 760px; width: 100%; margin: 0 auto; padding: 72px 16px 88px; display: flex; flex-direction: column; gap: 28px; flex: 1 0 auto; }
.privacy-main h1 { font-family: var(--serif); font-weight: 600; font-size: 48px; line-height: 1.1; letter-spacing: -0.01em; color: var(--heading); }
.privacy-sections { display: flex; flex-direction: column; gap: 22px; font-size: 18px; }
.privacy-sections section { display: flex; flex-direction: column; gap: 6px; padding-top: 22px; border-top: 1px solid var(--rule); }
.privacy-sections h2 { font-size: 18px; font-weight: 600; color: var(--heading); }