/* Zen Novel Reader website. Layout: one quiet column on paper, like the icon: a single ink line drawing, lots of white space, round line caps everywhere. */
:root {
  --paper: #FBFAF6;
  --ink: #1B1B1B;
  --ink-soft: #5E5C57;
  --line: #E6E3DB;
  --wash: #F3F1EA;
  --display: "Zen Maru Gothic", "Hiragino Maru Gothic ProN", ui-rounded, system-ui, sans-serif;
  --body: "Zen Kaku Gothic New", "Hiragino Sans", system-ui, -apple-system, sans-serif;
  --measure: 38rem;
  --stroke: 2.2;
  color-scheme: light;
}

* { box-sizing: border-box; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
.wrap {
  max-width: 64rem;
  margin-inline: auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--display); font-weight: 700; line-height: 1.25; text-wrap: balance; margin: 0; }
p { margin: 0; }
svg.doodle { fill: none; stroke: var(--ink); stroke-linecap: round; stroke-linejoin: round; }

/* Header */
.top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 1.5rem; }
.brand { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; font-family: var(--display); font-weight: 700; font-size: 1.05rem; }
.brand svg { width: 2.25rem; height: 2.25rem; }
.top nav { display: flex; gap: 1.5rem; font-size: 0.95rem; }
.top nav a { text-decoration: none; color: var(--ink-soft); }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--ink); }

/* Hero */
.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: center; gap: 3rem; padding-block: 3.5rem 5rem; }
.hero h1 { font-size: clamp(2.4rem, 6vw, 3.6rem); letter-spacing: -0.01em; }
.hero .lede { font-size: 1.2rem; color: var(--ink-soft); margin-top: 1rem; max-width: 26rem; }
.hero .art { width: 100%; max-width: 26rem; justify-self: center; }
.hero .art .zz { animation: drift 4.5s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
.hero .art .zz.two { animation-delay: 0.8s; }
@keyframes drift { 0%, 100% { transform: translateY(0); opacity: 1; } 50% { transform: translateY(-10px); opacity: 0.45; } }
@media (prefers-reduced-motion: reduce) { .hero .art .zz { animation: none; } }

.store { display: inline-flex; align-items: center; gap: 0.6rem; margin-top: 2rem; padding: 0.8rem 1.3rem; border: 2px solid var(--ink); border-radius: 999px; font-family: var(--display); font-weight: 700; text-decoration: none; }
.store svg { width: 1.2rem; height: 1.2rem; }
.store small { font-family: var(--body); font-weight: 400; color: var(--ink-soft); }
.quiet-list { display: flex; flex-wrap: wrap; gap: 0.4rem 1.2rem; margin-top: 1.25rem; padding: 0; list-style: none; color: var(--ink-soft); font-size: 0.95rem; }
.quiet-list li::before { content: "·"; margin-right: 0.5rem; }
.quiet-list li:first-child::before { content: none; }

/* Sections */
section { padding-block: 4rem; border-top: 1px solid var(--line); }
.section-head { max-width: var(--measure); }
.section-head h2 { font-size: clamp(1.7rem, 3.5vw, 2.2rem); }
.section-head p { margin-top: 0.75rem; color: var(--ink-soft); }

.features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 3rem 4rem; margin-top: 3rem; }
.feature { display: grid; grid-template-columns: 3.25rem minmax(0, 1fr); gap: 1.1rem; align-items: start; }
.feature svg { width: 3.25rem; height: 3.25rem; }
.feature h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.feature p + p { margin-top: 0.6rem; }
.feature ul { margin: 0.5rem 0 0; padding-left: 1.1rem; }
.feature li { margin-top: 0.15rem; }

/* Help */
.help { display: grid; gap: 0; margin-top: 2.5rem; max-width: 46rem; }
.help details { border-bottom: 1px solid var(--line); }
.help details:first-child { border-top: 1px solid var(--line); }
.help summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding-block: 1.25rem; font-family: var(--display); font-weight: 700; font-size: 1.2rem; }
.help summary::-webkit-details-marker { display: none; }
.help summary svg { width: 1.25rem; height: 1.25rem; flex: none; transition: transform 0.2s ease; }
.help details[open] summary svg { transform: rotate(45deg); }
.help .answer { display: grid; gap: 0.8rem; padding-bottom: 1.5rem; max-width: var(--measure); }
.help .answer ol { margin: 0; padding-left: 1.2rem; display: grid; gap: 0.35rem; }
.path { font-family: var(--display); font-weight: 500; white-space: nowrap; }

.contact { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 2rem; margin-top: 3rem; padding: 2rem; background: var(--wash); border-radius: 28px; }
.contact h2 { font-size: 1.35rem; }
.contact p { margin-top: 0.4rem; color: var(--ink-soft); }
.email { display: inline-flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.email a { font-family: var(--display); font-size: 1.05rem; }

/* Privacy page */
.policy { max-width: var(--measure); padding-block: 3rem 5rem; }
.policy h1 { font-size: clamp(2rem, 5vw, 2.8rem); }
.policy .summary { margin-top: 1.5rem; padding: 1.5rem 1.75rem; background: var(--wash); border-radius: 24px; font-size: 1.15rem; }
.policy .updated { margin-top: 1rem; color: var(--ink-soft); font-size: 0.95rem; }
.policy h2 { font-size: 1.3rem; margin-top: 2.5rem; margin-bottom: 0.6rem; }
.policy p + p { margin-top: 0.75rem; }

footer { border-top: 1px solid var(--line); padding-block: 2rem 3rem; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; color: var(--ink-soft); font-size: 0.9rem; }
footer nav { display: flex; gap: 1.25rem; }

@media (max-width: 760px) {
  .hero { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; padding-block: 1.5rem 3.5rem; }
  .hero .art { order: -1; max-width: 17rem; }
  .features { grid-template-columns: minmax(0, 1fr); gap: 2.25rem; }
  .contact { grid-template-columns: minmax(0, 1fr); padding: 1.5rem; }
  .top nav { gap: 1rem; }
  section { padding-block: 3rem; }
}

/* The help page opens with its section, so it needs no rule above it. */
section.first { border-top: 0; padding-top: 2rem; }
section.first h1 { font-size: clamp(2rem, 5vw, 2.8rem); }

/* A long link to copy: wraps anywhere instead of widening the page. */
.link-copy { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem; margin-top: 0.4rem; padding: 0.6rem 0.8rem; background: var(--wash); border-radius: 12px; overflow-wrap: anywhere; }
.link-copy code { flex: 1 1 16rem; min-width: 0; font-size: 0.85rem; user-select: all; }

/* Copy buttons appear only once script.js can make them work. */
.copy { display: inline-flex; flex-shrink: 0; align-items: center; gap: 0.35rem; padding: 0.35rem 0.75rem; border: 1.5px solid var(--ink); border-radius: 999px; background: var(--paper); color: var(--ink); font: 600 0.85rem var(--body); cursor: pointer; }
.copy[hidden] { display: none; }
.copy svg { width: 1rem; height: 1rem; }
.copy:hover { background: var(--wash); }
.copy:focus-visible, .help-links a:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
.copy.done { background: var(--ink); color: var(--paper); }

/* Home: the help topics as cards that open the matching section. */
.help-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-top: 1.5rem; padding: 0; list-style: none; }
.help-links a { display: block; height: 100%; padding: 1.25rem 1.4rem; border: 1.5px solid var(--line); border-radius: 20px; color: inherit; text-decoration: none; }
.help-links a:hover { border-color: var(--ink); }
.help-links strong { display: block; font-family: var(--display); font-size: 1.05rem; }
.help-links span { display: block; margin-top: 0.3rem; color: var(--ink-soft); font-size: 0.95rem; }
p.store { cursor: default; }
@media (max-width: 760px) { .help-links { grid-template-columns: minmax(0, 1fr); } }

/* Help search: answers appear under the box as you type. */
.help-search { display: grid; gap: 0.6rem; margin-top: 2rem; max-width: 46rem; }
.help-search[hidden] { display: none; }
.help-search label { font-family: var(--display); font-weight: 700; }
.help-search input { width: 100%; padding: 0.85rem 1.1rem; border: 1.5px solid var(--ink); border-radius: 999px; background: var(--paper); color: var(--ink); font: inherit; font-size: 1.05rem; }
.help-search input:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
.help-results:empty { display: none; }
.help-results { display: grid; gap: 0.6rem; padding: 1rem 1.25rem; background: var(--wash); border-radius: 20px; }
.help-results ul { display: grid; gap: 0.4rem; margin: 0; padding: 0; list-style: none; }
.help-results ul a { font-family: var(--display); font-weight: 700; font-size: 1.05rem; }
.help-results p { color: var(--ink-soft); }
.help-results .ask { color: var(--ink); font-weight: 600; }
.help-search + .help { margin-top: 1.5rem; }

/* Guide: the parts down the side on wide screens, as a row of links on narrow ones. */
.guide { display: grid; grid-template-columns: 13rem minmax(0, 1fr); gap: 3rem; margin-top: 2.5rem; }
.toc { position: sticky; top: 1.5rem; align-self: start; }
.toc ol { display: grid; gap: 0.6rem; margin: 0; padding: 0; list-style: none; }
.toc a { color: var(--ink-soft); text-decoration: none; }
.toc a:hover { color: var(--ink); }
.guide-body { display: grid; gap: 3rem; max-width: var(--measure); }
.part { display: grid; gap: 2rem; scroll-margin-top: 1.5rem; }
.part h2 { font-size: clamp(1.5rem, 3vw, 1.9rem); padding-bottom: 0.75rem; border-bottom: 1px solid var(--line); }
.guide article { display: grid; gap: 0.8rem; scroll-margin-top: 1.5rem; }
.guide article h3 { font-family: var(--display); font-size: 1.2rem; }
.guide article ol, .guide article ul { margin: 0; padding-left: 1.2rem; display: grid; gap: 0.35rem; }
.guide figure { margin: 0.25rem 0; }
.guide figure img { display: block; width: auto; max-width: 100%; max-height: 32rem; height: auto; border: 1px solid var(--line); border-radius: 16px; }
.tip { padding: 0.8rem 1rem; background: var(--wash); border-radius: 14px; }
.tip strong { margin-right: 0.35rem; font-family: var(--display); }
.help-results li span { margin-left: 0.5rem; color: var(--ink-soft); font-size: 0.9rem; }
@media (max-width: 760px) {
  .guide { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .toc { position: static; }
  .toc ol { display: flex; flex-wrap: wrap; gap: 0.5rem; }
  .toc a { display: inline-block; padding: 0.35rem 0.8rem; border: 1.5px solid var(--line); border-radius: 999px; font-size: 0.9rem; }
  .top { flex-wrap: wrap; }
}