/*
  Go Offline By Design — shared site styles.

  Design system: a quiet, neutral "catalog" shell (paper + ink, one muted
  slate accent) for the business-level pages — home, privacy, support —
  plus per-app pages that borrow each app's own real palette (set as CSS
  custom properties from that app's data.json) so the catalog stays plain
  and each product still gets its own identity. Retheme the shell by
  editing the two :root blocks below; retheme an app page by editing that
  app's data.json, not this file.
*/

:root {
  --paper: #efeee7;
  --paper-alt: #ffffff;
  --ink: #20221e;
  --ink-muted: rgba(32, 34, 30, 0.62);
  --ink-faint: rgba(32, 34, 30, 0.4);
  --line: rgba(32, 34, 30, 0.15);
  --accent: #2e4756;
  --accent-ink: #ffffff;
  --focus-ring: #20221e;

  --font-display: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas,
    monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #17181b;
    --paper-alt: #1f2124;
    --ink: #edece6;
    --ink-muted: rgba(237, 236, 230, 0.64);
    --ink-faint: rgba(237, 236, 230, 0.42);
    --line: rgba(237, 236, 230, 0.16);
    --accent: #8fb3c4;
    --accent-ink: #12191d;
    --focus-ring: #edece6;
  }
}

/* ---------- reset ---------- */

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

ul,
ol {
  padding-left: 0;
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

.wrap {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.prose {
  max-width: 40em;
}

/* ---------- typography ---------- */

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink-muted);
  margin: 0 0 0.75rem;
}

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

.site-header {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-family: var(--font-mono);
}

.site-nav a {
  text-decoration: none;
  color: var(--ink-muted);
  font-size: 0.875rem;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
}

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

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0 3rem;
  margin-top: 2rem;
}

.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
}

.footer-links a {
  text-decoration: none;
  color: var(--ink-muted);
  font-size: 0.8125rem;
}

.footer-links a:hover {
  color: var(--ink);
}

.copyright {
  color: var(--ink-faint);
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  margin: 0;
}

/* ================= HOME ================= */

.intro {
  padding: 4.5rem 0 3.5rem;
}

.intro h1 {
  font-size: clamp(2.1rem, 3.2vw + 1.2rem, 3.375rem);
  line-height: 1.15;
  max-width: 16em;
  margin-bottom: 1.75rem;
}

.intro p {
  max-width: 34em;
  color: var(--ink-muted);
  font-size: 1.0625rem;
  margin: 0 0 1.1rem;
}

.intro p:last-child {
  margin-bottom: 0;
}

.intro p strong {
  color: var(--ink);
  font-weight: 600;
}

.intro-signature {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  margin-top: 2.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.intro-signature-name {
  color: var(--ink);
  font-weight: 500;
}

.intro-signature-links {
  display: flex;
  gap: 1.1rem;
}

.intro-signature-links a {
  color: var(--ink-muted);
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 3px;
}

.intro-signature-links a:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

/* ---------- app index (catalog list) ---------- */

.app-index {
  border-top: 1px solid var(--line);
  padding: 0.5rem 0 4rem;
}

.app-index-heading {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink-muted);
  margin: 2rem 0 0.5rem;
}

.app-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.75rem 1rem;
  margin: 0 -1rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  border-radius: 10px;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.app-row:hover,
.app-row:focus-visible {
  background: color-mix(in srgb, var(--row-primary, var(--accent)) 10%, var(--paper));
}

.app-row-icon {
  flex: none;
  width: 64px;
  height: 64px;
  border-radius: 15px;
  border: 1px solid var(--line);
}

.app-row-body {
  flex: 1 1 auto;
  min-width: 0;
}

.app-row-name {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
}

.app-row-tagline {
  color: var(--ink-muted);
  margin: 0 0 0.75rem;
  font-size: 0.96875rem;
}

.app-row-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.fact-chip {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
}

.app-row-go {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink-faint);
  align-self: center;
}

@media (max-width: 620px) {
  .app-row {
    flex-wrap: wrap;
  }
  .app-row-go {
    display: none;
  }
}

/* ================= APP PAGE ================= */

.app-page {
  --row-primary: var(--app-primary);
}

.app-hero {
  padding: 3.5rem 0 3rem;
  background: color-mix(in srgb, var(--app-primary) 7%, var(--paper));
  border-bottom: 1px solid var(--line);
}

.app-hero-top {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.app-hero-icon {
  flex: none;
  width: 84px;
  height: 84px;
  border-radius: 19px;
  border: 1px solid var(--line);
}

.app-hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink-muted);
  margin: 0 0 0.4rem;
}

.app-hero h1 {
  font-size: clamp(1.875rem, 2.6vw + 1.1rem, 2.75rem);
  line-height: 1.12;
}

.app-hero-desc {
  max-width: 40em;
  color: var(--ink-muted);
  font-size: 1.0625rem;
  margin: 1.5rem 0 0;
}

@media (max-width: 560px) {
  .app-hero-top {
    align-items: flex-start;
  }
}

.app-facts {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.app-facts li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink);
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.35rem 0.75rem 0.35rem 0.55rem;
}

.fact-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
}

.fact-dot.c0 {
  background: var(--app-primary);
}
.fact-dot.c1 {
  background: var(--app-secondary);
}
.fact-dot.c2 {
  background: var(--app-tertiary, var(--ink-faint));
}

.app-cta-row {
  margin-top: 1.75rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.9rem 1.1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 10px;
  padding: 0.8rem 1.4rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}

.btn-primary[aria-disabled="true"] {
  cursor: default;
  opacity: 0.55;
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.cta-note {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink-faint);
  margin: 0.6rem 0 0;
}

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

.app-section {
  padding: 3.25rem 0;
  border-bottom: 1px solid var(--line);
}

.app-section h2 {
  font-size: 1.5rem;
  margin: 0 0 1.75rem;
}

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem 2.5rem;
}

@media (max-width: 640px) {
  .feature-list {
    grid-template-columns: 1fr;
  }
}

.feature-list li {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
}

.feature-dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  margin-top: 0.5rem;
  flex: none;
  background: var(--app-primary);
}

.feature-list li:nth-child(3n + 2) .feature-dot {
  background: var(--app-secondary);
}
.feature-list li:nth-child(3n) .feature-dot {
  background: var(--app-tertiary, var(--app-primary));
}

.feature-list strong {
  display: block;
  font-family: var(--font-body);
  margin-bottom: 0.2rem;
}

.feature-list p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.96875rem;
}

/* ---------- screenshots ---------- */

.screenshot-strip {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.screenshot-track {
  display: flex;
  gap: 1.25rem;
  width: max-content;
  padding: 0.25rem 0.25rem 0.75rem;
}

.screenshot-card {
  flex: none;
  width: 210px;
  margin: 0;
}

.screenshot-card img {
  border-radius: 22px;
  border: 1px solid var(--line);
  background: var(--paper-alt);
}

.screenshot-card figcaption {
  margin-top: 0.85rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--ink-muted);
}

/* ---------- honesty note ---------- */

.honesty-note {
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-left: 3px solid var(--app-primary);
  border-radius: 4px;
  padding: 1.1rem 1.35rem;
  font-size: 0.9375rem;
  color: var(--ink-muted);
}

.honesty-note strong {
  color: var(--ink);
}

.honesty-note a {
  color: var(--accent);
}

.app-footer-nav {
  padding-top: 3.25rem;
}

.back-link {
  display: inline-block;
  text-decoration: none;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.back-link:hover {
  color: var(--ink);
}

/* ================= PAGE HEAD (privacy / support) ================= */

.page-head {
  padding: 3.5rem 0 1rem;
  border-bottom: 1px solid var(--line);
}

.page-head h1 {
  font-size: clamp(1.875rem, 2.4vw + 1.1rem, 2.5rem);
  margin-bottom: 0.6rem;
}

.page-head p {
  color: var(--ink-muted);
  max-width: 38em;
  margin: 0 0 1.75rem;
}

.page-body {
  padding: 2.5rem 0 4rem;
}

.page-body h2 {
  font-size: 1.375rem;
  margin: 0 0 1rem;
}

.page-body p,
.page-body li {
  color: var(--ink-muted);
}

.page-body ul {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
}

.page-body li + li {
  margin-top: 0.35rem;
}

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

.commitment-list {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.commitment-list h3 {
  font-family: var(--font-body);
  font-size: 1.03125rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 0.3rem;
}

.commitment-list p {
  margin: 0;
}

.app-addendum {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.75rem 1.75rem 1.5rem;
  margin: 0 0 1.5rem;
}

.app-addendum-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.1rem;
}

.app-addendum-head img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  border: 1px solid var(--line);
}

.app-addendum-head h3 {
  font-family: var(--font-display);
  font-size: 1.1875rem;
  font-weight: 600;
  margin: 0;
}

.app-addendum-head a {
  text-decoration: none;
  color: inherit;
}

.capability {
  padding: 0.9rem 0;
  border-top: 1px solid var(--line);
}

.capability:first-of-type {
  border-top: none;
  padding-top: 0;
}

.capability strong {
  display: block;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 0.2rem;
  font-size: 0.96875rem;
}

.capability p {
  margin: 0;
  font-size: 0.9375rem;
}

.effective-date {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink-faint);
}

/* ---------- support ---------- */

.faq-item {
  border-top: 1px solid var(--line);
  padding: 1.1rem 0;
}

.faq-item:last-child {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--ink);
  list-style: none;
  font-family: var(--font-body);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::before {
  content: "+";
  display: inline-block;
  width: 1.1em;
  color: var(--accent);
  font-weight: 700;
  font-family: var(--font-mono);
}

.faq-item[open] summary::before {
  content: "\2212";
}

.faq-item p {
  margin: 0.7rem 0 0 1.1em;
}

.app-faq-heading {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 2.5rem 0 0.25rem;
}

.app-faq-heading img {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: 1px solid var(--line);
}

.app-faq-heading h3 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0;
}

.contact-card {
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.75rem;
  margin: 2.5rem 0 0;
}

.contact-card p {
  margin: 0 0 0.9rem;
}

.contact-card a.email {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
}

.contact-card a.email:hover {
  color: var(--accent);
}

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

.error-page {
  padding: 5rem 0;
  text-align: left;
}

.error-page h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}