:root {
  --primary: #E91E63;
  --primary-dark: #ad1457;
  --fg: #1a1a1a;
  --fg-muted: #555;
  --bg: #ffffff;
  --bg-banner: #fff3e0;
  --bg-banner-fg: #5d4037;
  --bg-banner-border: #ffb74d;
  --bg-soft: #f7f7f7;
  --border: #e0e0e0;
  --link: #c2185b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #f1f1f1;
    --fg-muted: #b0b0b0;
    --bg: #121212;
    --bg-banner: #3e2723;
    --bg-banner-fg: #ffcc80;
    --bg-banner-border: #8d6e63;
    --bg-soft: #1e1e1e;
    --border: #333;
    --link: #f48fb1;
  }
}

* { box-sizing: border-box; }

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui,
               Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  color: var(--fg);
  background: var(--bg);
  margin: 0;
  padding: 0;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 24px 96px;
}

/* App-style header: the script wordmark, dead-centered on a black bar
   (matches the Android BrandStrip: BrandBarColor #000, wordmark 36dp). The
   white-fill logo needs the dark bar to stay legible on the light theme. */
header.brand {
  background: #000;
  padding: 10px 24px;
  text-align: center;
}
header.brand a {
  display: inline-block;
  line-height: 0;
  text-decoration: none;
}
header.brand img.wordmark {
  height: 38px;
  width: auto;
  max-width: 100%;
}

.draft-banner {
  background: var(--bg-banner);
  color: var(--bg-banner-fg);
  border: 1px solid var(--bg-banner-border);
  border-radius: 8px;
  padding: 12px 16px;
  margin: 0 0 28px;
  font-size: 14px;
  line-height: 1.5;
}
.draft-banner strong { color: var(--bg-banner-fg); }

h1 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 8px 0 4px;
}
.subtitle {
  color: var(--fg-muted);
  font-size: 15px;
  margin: 0 0 32px;
}

h2 {
  font-size: 22px;
  font-weight: 600;
  margin: 40px 0 12px;
  letter-spacing: -0.01em;
}
h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 24px 0 8px;
}

p, li { margin: 0 0 12px; }

ul, ol { padding-left: 22px; }

a { color: var(--link); }
a:hover { color: var(--primary); }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 20px;
  font-size: 15px;
}
th, td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th {
  font-weight: 600;
  background: var(--bg-soft);
}

code {
  background: var(--bg-soft);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.9em;
  font-family: "SF Mono", Menlo, Consolas, monospace;
}

footer {
  border-top: 1px solid var(--border);
  padding: 20px 24px;
  font-size: 14px;
  color: var(--fg-muted);
  text-align: center;
}
footer a { color: var(--link); margin: 0 8px; }

.contact-block {
  background: var(--bg-soft);
  border-radius: 8px;
  padding: 14px 18px;
  margin: 16px 0;
  font-size: 15px;
}
.contact-block p { margin: 4px 0; }

.toc {
  background: var(--bg-soft);
  border-radius: 8px;
  padding: 14px 18px 14px 36px;
  margin: 0 0 28px;
}
.toc strong { display: block; margin: 0 0 4px -16px; }
.toc ul { margin: 0; padding-left: 0; list-style: none; }
.toc li { margin: 4px 0; }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; }

/* Buttons + forms (signup / login) */
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 8px;
  font-weight: 600; text-decoration: none; cursor: pointer; font-size: 16px;
  border: 1px solid var(--primary); background: var(--primary); color: #fff;
}
.btn:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; }
.btn.ghost { background: transparent; color: var(--primary); }
.btn.ghost:hover { color: var(--primary-dark); }

form.auth { max-width: 440px; margin: 8px 0 0; }
.field { margin: 16px 0; }
.field label { display: block; font-size: 14px; color: var(--fg-muted); margin: 0 0 6px; }
.field input {
  width: 100%; padding: 12px; font-size: 16px; color: var(--fg);
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
}
.field input:focus { outline: 2px solid var(--primary); outline-offset: 1px; }
.field .note { font-size: 13px; color: var(--fg-muted); margin: 6px 0 0; }
.check { display: flex; gap: 10px; align-items: flex-start; margin: 14px 0; font-size: 15px; }
.check input { margin-top: 5px; }
button.submit {
  width: 100%; margin-top: 20px; padding: 13px; font-size: 16px; font-weight: 700;
  color: #fff; background: var(--primary); border: 0; border-radius: 8px; cursor: pointer;
}
button.submit:hover { background: var(--primary-dark); }
button.submit[disabled] { opacity: 0.6; cursor: not-allowed; }
.btn:focus-visible, button.submit:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.formmsg { display: none; margin-top: 16px; padding: 12px 14px; border-radius: 8px; font-size: 15px; }
.formmsg.show { display: block; }
.formmsg.ok { background: var(--bg-soft); border: 1px solid var(--border); color: var(--fg); }
.formmsg.err { background: var(--bg-banner); border: 1px solid var(--bg-banner-border); color: var(--bg-banner-fg); }