/* cbsoybas.com: graph-paper notebook look shared by every app page. */
:root {
  --paper: #e9eef3;
  --surface: #fbfcfd;
  --ink: #18212c;
  --pencil: #2a5bb5;
  --line: #c6cfda;
  --muted: #5b6878;
  --marker: #f0c53e;
  --marker-ink: #2a2206;
  --font: "Bricolage Grotesque", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #10151c; --surface: #18202a; --ink: #e5eaf0; --pencil: #8fb5ff;
    --line: #2b3643; --muted: #8d9aa9; --marker: #e3b934; --marker-ink: #221b04;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--ink);
  font: 17px/1.6 var(--font);
  padding-inline: 16px;
}
.wrap { max-width: 760px; margin-inline: auto; padding-block: 32px 64px; }
a { color: var(--pencil); text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid var(--pencil); outline-offset: 2px; border-radius: 4px; }

.top { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 40px; }
.brand { font-weight: 800; font-size: 1.15rem; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.brand span { background: linear-gradient(transparent 55%, var(--marker) 55%, var(--marker) 90%, transparent 90%); }
.top nav { display: flex; gap: 16px; font-size: 0.95rem; }

h1 { font-size: clamp(2.2rem, 7vw, 3.4rem); line-height: 1; letter-spacing: -0.03em; margin: 0 0 12px; text-wrap: balance; }
h2 { font-size: 1.35rem; letter-spacing: -0.01em; margin: 36px 0 8px; text-wrap: balance; }
h3 { font-size: 1.05rem; margin: 22px 0 4px; }
p, li { max-width: 65ch; }
.lead { font-size: 1.15rem; color: var(--muted); margin: 0 0 24px; }
.muted { color: var(--muted); font-size: 0.92rem; }
.mark { background: linear-gradient(transparent 58%, var(--marker) 58%, var(--marker) 88%, transparent 88%); padding-inline: 2px; }

.sheet { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 24px; }

.apps { display: grid; gap: 12px; }
.app-card {
  display: flex; gap: 18px; align-items: center; text-decoration: none; color: inherit;
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px;
}
.app-card:hover { border-color: var(--muted); }
.app-card img { width: 80px; height: 80px; border-radius: 18px; flex: none; box-shadow: 0 6px 18px -8px rgba(10, 20, 40, 0.45); }
.app-card div { min-width: 0; }
.app-card h3 { margin: 0 0 2px; font-size: 1.2rem; }
.app-card p { margin: 0; color: var(--muted); font-size: 0.98rem; }
.app-card .go { margin-left: auto; color: var(--pencil); font-weight: 600; white-space: nowrap; }
@media (max-width: 520px) { .app-card .go { display: none; } .app-card img { width: 64px; height: 64px; border-radius: 15px; } }

.hero { display: flex; gap: 22px; align-items: center; margin-bottom: 20px; flex-wrap: wrap; }
.hero img { width: 112px; height: 112px; border-radius: 26px; box-shadow: 0 10px 26px -10px rgba(10, 20, 40, 0.5); }
.hero h1 { margin: 0; }

.button {
  display: inline-block; background: var(--marker); color: var(--marker-ink); font-weight: 700;
  padding: 12px 22px; border-radius: 999px; text-decoration: none;
}
.button.ghost { background: none; border: 1px solid var(--line); color: var(--ink); font-weight: 600; }
.buttons { display: flex; gap: 10px; flex-wrap: wrap; margin: 8px 0 28px; }

.shots { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin: 24px 0; }
.shots img { width: 100%; max-width: 100%; height: auto; border-radius: 18px; border: 1px solid var(--line); }
@media (max-width: 560px) { .shots { grid-template-columns: repeat(2, minmax(0, 1fr)); } .shots img:last-child { display: none; } }

ul.features { padding-left: 1.1em; }
ul.features li { margin: 4px 0; }

.faq dt { font-weight: 700; margin-top: 18px; }
.faq dd { margin: 4px 0 0; }

.lang { border-top: 1px dashed var(--line); margin-top: 40px; padding-top: 8px; }

footer { margin-top: 48px; font-size: 0.88rem; color: var(--muted); }