/* KnowledgeSaved: Quote Notebook — landing site styles
   Palette derived from the app icon: ink black on warm paper,
   with a bronze "book ribbon" accent. Monochrome-literary brand. */

:root {
  --ink: #16161a;
  --ink-soft: #3d3d44;
  --ink-faint: #6b6b74;
  --paper: #faf7f1;
  --paper-raised: #ffffff;
  --paper-shade: #f0ebe1;
  --accent: #7a4f12;
  --accent-strong: #5f3d0d;
  --rule: #ddd6c8;
  --focus: #7a4f12;
  --serif: "Iowan Old Style", "Palatino", "Palatino Linotype", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f2efe8;
    --ink-soft: #cfccc3;
    --ink-faint: #9d9a92;
    --paper: #141416;
    --paper-raised: #1e1e22;
    --paper-shade: #232328;
    --accent: #d9a648;
    --accent-strong: #e8bd6d;
    --rule: #33333a;
    --focus: #d9a648;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--serif);
  line-height: 1.2;
  color: var(--ink);
  margin: 0 0 0.6em;
  font-weight: 600;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 5.5vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.05rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1em; }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { color: var(--accent-strong); }

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

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

.wrap {
  max-width: 68rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
  z-index: 100;
  border-radius: 0 0 6px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Header / nav ---------- */
.site-header {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 3.6rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
  text-decoration: none;
}
.brand img { border-radius: 8px; display: block; }

.nav-toggle {
  margin-left: auto;
  display: none;
  background: none;
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 0.45rem 0.7rem;
  font: inherit;
  color: var(--ink);
  cursor: pointer;
}
.site-nav { margin-left: auto; }
.site-nav ul {
  display: flex;
  gap: 1.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--accent); }

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    padding: 0.75rem 1.25rem 1rem;
  }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0.9rem; }
}

/* ---------- Hero ---------- */
.hero {
  padding: 4rem 0 3.5rem;
  border-bottom: 1px solid var(--rule);
}
.hero .wrap {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero { padding: 2.75rem 0; }
}
.kicker {
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.9rem;
}
.hero-lede {
  font-size: 1.2rem;
  color: var(--ink-soft);
  max-width: 34em;
}
.hero-meta {
  color: var(--ink-faint);
  font-size: 0.9rem;
  margin-top: 1rem;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-items: center;
  margin-top: 1.6rem;
}
.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  padding: 0.7rem 1.3rem;
  border-radius: 10px;
  line-height: 1.15;
  transition: transform 0.15s ease;
}
.store-badge:hover { transform: translateY(-2px); color: var(--paper); }
@media (prefers-color-scheme: dark) {
  .store-badge { background: var(--ink); color: var(--paper); }
}
.store-badge .apple-mark { flex: none; }
.store-badge small { display: block; font-size: 0.68rem; opacity: 0.85; }
.store-badge strong { font-size: 1.05rem; font-weight: 600; }
.btn-secondary {
  display: inline-block;
  border: 1.5px solid var(--rule);
  color: var(--ink-soft);
  text-decoration: none;
  padding: 0.75rem 1.2rem;
  border-radius: 10px;
  font-size: 0.95rem;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

/* Real App Store screenshots */
.hero-shot {
  max-width: 19rem;
  margin: 0 auto;
}
.hero-shot img {
  display: block;
  width: 100%;
  border: 1px solid var(--rule);
  border-radius: 18px;
  box-shadow: 0 12px 32px rgba(20, 20, 26, 0.18);
  background: #16161a;
}
.hero-shot figcaption {
  margin-top: 0.9rem;
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.88rem;
}

.shots {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(210px, 250px);
  gap: 1.25rem;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  padding-bottom: 0.9rem;
  margin-top: 1.75rem;
  -webkit-overflow-scrolling: touch;
}
.shots:focus-visible { outline-offset: 6px; }
.shot {
  margin: 0;
  scroll-snap-align: start;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 16px;
  padding: 0.9rem;
}
.shot img {
  display: block;
  width: 100%;
  border-radius: 12px;
  background: #16161a;
}
.shot figcaption { margin-top: 0.85rem; }
.shot figcaption strong {
  display: block;
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--accent);
  margin-bottom: 0.2rem;
}
.shot figcaption span {
  display: block;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
@media (min-width: 860px) {
  .shots {
    grid-auto-flow: row;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-columns: auto;
    overflow-x: visible;
    scroll-snap-type: none;
    padding-bottom: 0;
  }
}

/* ---------- Sections ---------- */
section { padding: 3.5rem 0; }
section + section { border-top: 1px solid var(--rule); }
.section-intro { color: var(--ink-soft); max-width: 42em; }

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-top: 1.5rem;
}
@media (max-width: 720px) { .problem-grid { grid-template-columns: 1fr; } }
.problem-grid h3 { color: var(--accent); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 1.75rem;
}
@media (max-width: 900px) { .feature-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .feature-grid { grid-template-columns: 1fr; } }
.feature-card {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 1.4rem 1.3rem;
}
.feature-card h3 { margin-bottom: 0.4em; }
.feature-card p { color: var(--ink-soft); font-size: 0.97rem; margin: 0; }
.feature-icon {
  font-family: var(--serif);
  font-size: 1.5rem;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}

.steps { counter-reset: step; list-style: none; margin: 1.75rem 0 0; padding: 0; }
.steps li {
  counter-increment: step;
  position: relative;
  padding: 0 0 1.6rem 3.4rem;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 2.3rem;
  height: 2.3rem;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--serif);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.steps h3 { margin-bottom: 0.25em; }
.steps p { color: var(--ink-soft); margin: 0; max-width: 44em; }

/* ---------- FAQ accordion ---------- */
.faq-list { margin-top: 1.5rem; border-top: 1px solid var(--rule); }
.faq-item { border-bottom: 1px solid var(--rule); }
.faq-q {
  width: 100%;
  background: none;
  border: 0;
  text-align: left;
  font: inherit;
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ink);
  padding: 1.1rem 2.5rem 1.1rem 0.25rem;
  cursor: pointer;
  position: relative;
}
.faq-q::after {
  content: "+";
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  color: var(--accent);
  transition: transform 0.2s ease;
}
.faq-q[aria-expanded="true"]::after { transform: translateY(-50%) rotate(45deg); }
.faq-a { padding: 0 0.25rem 1.2rem; color: var(--ink-soft); max-width: 48em; }
.faq-a[hidden] { display: none; }
.no-js .faq-a[hidden] { display: block; }

/* ---------- Guides teaser ---------- */
.guide-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 1.75rem;
}
@media (max-width: 720px) { .guide-cards { grid-template-columns: 1fr; } }
.guide-card {
  display: block;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 1.3rem 1.3rem 1.1rem;
  text-decoration: none;
  color: var(--ink);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.guide-card:hover { border-color: var(--accent); transform: translateY(-2px); color: var(--ink); }
.guide-card h3 { color: var(--accent); margin-bottom: 0.35em; }
.guide-card p { color: var(--ink-soft); font-size: 0.95rem; margin: 0; }

/* ---------- Final CTA ---------- */
.final-cta { text-align: center; }
.final-cta .cta-row { justify-content: center; }
.final-cta .section-intro { margin-left: auto; margin-right: auto; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--rule);
  background: var(--paper-shade);
  padding: 2.5rem 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.footer-cols {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
}
@media (max-width: 720px) { .footer-cols { grid-template-columns: 1fr; } }
.site-footer h3 { font-size: 1rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 0.5rem; }
.site-footer a { color: var(--ink-soft); }
.site-footer a:hover { color: var(--accent); }
.footer-note {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-faint);
  font-size: 0.85rem;
}

/* ---------- Guide article pages ---------- */
.breadcrumb {
  font-size: 0.88rem;
  color: var(--ink-faint);
  padding: 1.25rem 0 0;
}
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0; padding: 0; }
.breadcrumb li + li::before { content: "/"; margin-right: 0.4rem; color: var(--rule); }
.breadcrumb a { color: var(--ink-faint); }

.article {
  max-width: 44rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 3.5rem;
}
.article header h1 { margin-bottom: 0.35em; }
.article .article-meta { color: var(--ink-faint); font-size: 0.9rem; margin-bottom: 2rem; }
.article h2 { margin-top: 2.2em; }
.article h3 { margin-top: 1.8em; }
.article ul, .article ol { padding-left: 1.4rem; color: var(--ink-soft); }
.article li { margin-bottom: 0.45rem; }
.article blockquote {
  margin: 1.75rem 0;
  padding: 0.4rem 0 0.4rem 1.4rem;
  border-left: 3px solid var(--accent);
  font-family: var(--serif);
  font-size: 1.15rem;
  color: var(--ink-soft);
}
.article p { color: var(--ink-soft); }
.article p strong, .article li strong { color: var(--ink); }

.app-callout {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-left: 4px solid var(--accent);
  border-radius: 10px;
  padding: 1.4rem 1.5rem;
  margin: 2.5rem 0;
}
.app-callout h2, .app-callout h3 { margin-top: 0; }

.related {
  border-top: 1px solid var(--rule);
  margin-top: 3rem;
  padding-top: 1.75rem;
}
.related h2 { font-size: 1.25rem; }
.related ul { list-style: none; padding: 0; }
.related li { margin-bottom: 0.6rem; }