/* Keptrank static site, phase 1 (blog + waitlist). Draft 10/11/2026, not published. */
:root {
  --bg: #ffffff;
  --surface: #f6f7f9;
  --text: #111827;
  --muted: #4b5563;
  --line: #e5e7eb;
  --accent: #0f766e;
  --accent-text: #ffffff;
  --todo: #fde68a;
  --radius: 12px;
  --max: 720px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f14;
    --surface: #131a22;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --line: #1f2937;
    --accent: #2dd4bf;
    --accent-text: #04201c;
    --todo: #6b5b14;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
header.site, footer.site { border-bottom: 1px solid var(--line); }
footer.site { border-top: 1px solid var(--line); border-bottom: 0; margin-top: 64px; color: var(--muted); font-size: 14px; }
header.site .wrap, footer.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; }
.brand { font-weight: 700; color: var(--text); text-decoration: none; letter-spacing: -0.01em; }
nav a { color: var(--muted); text-decoration: none; margin-left: 16px; }
nav a:hover { color: var(--text); }
h1 { font-size: clamp(30px, 6vw, 44px); line-height: 1.15; letter-spacing: -0.02em; margin: 56px 0 16px; }
h2 { font-size: 22px; line-height: 1.3; margin: 40px 0 8px; }
.lead { color: var(--muted); font-size: 19px; margin: 0 0 24px; }
form.waitlist { display: grid; gap: 12px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
form.waitlist label { font-size: 14px; color: var(--muted); }
form.waitlist input, form.waitlist select { width: 100%; font: inherit; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--text); }
form.waitlist button { font: inherit; font-weight: 600; padding: 12px 16px; min-height: 44px; border: 0; border-radius: 8px; background: var(--accent); color: var(--accent-text); cursor: pointer; }
.small { font-size: 14px; color: var(--muted); margin: 0; }
.blocks { display: grid; gap: 16px; margin-top: 8px; }
.block { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.block h3 { margin: 0 0 6px; font-size: 18px; }
.block p { margin: 0; color: var(--muted); }
.limits { background: var(--surface); border-radius: var(--radius); padding: 18px 20px; }
.limits p { margin: 0 0 8px; }
.todo { background: var(--todo); padding: 0 4px; border-radius: 4px; }
article .meta { color: var(--muted); font-size: 14px; }
article table { width: 100%; border-collapse: collapse; font-size: 15px; display: block; overflow-x: auto; }
article th, article td { text-align: left; border-bottom: 1px solid var(--line); padding: 8px 10px; vertical-align: top; }
.post-list { list-style: none; padding: 0; }
.post-list li { border-bottom: 1px solid var(--line); padding: 14px 0; }

/* Design judge 10/11 (FIX 7.5): 44px tap targets on phones, visible focus, form feedback */
header.site nav a, footer.site nav a, .brand { display: inline-flex; align-items: center; min-height: 44px; }
header.site nav a, footer.site nav a { padding: 0 8px; margin-left: 8px; }
form.waitlist label.consent { display: flex; gap: 12px; align-items: flex-start; min-height: 44px; padding: 6px 0; }
form.waitlist input[type=checkbox] { width: 24px; height: 24px; flex: 0 0 24px; margin: 0; accent-color: var(--accent); }
.consent a { display: inline-block; padding: 12px 0; margin: -12px 0; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
form.waitlist input:focus-visible, form.waitlist select:focus-visible, form.waitlist button:focus-visible { outline-offset: 1px; }
#waitlist-msg:empty { display: none; }
#waitlist-msg { font-size: 15px; color: var(--text); }
#waitlist-msg.error { color: #b42318; font-weight: 600; }
form.waitlist input:user-invalid { border-color: #b42318; }
@media (prefers-color-scheme: dark) { #waitlist-msg.error { color: #fda29b; } form.waitlist input:user-invalid { border-color: #fda29b; } }
form.waitlist label:not(.consent) { display: block; padding-bottom: 2px; }
:root { color-scheme: light dark; }
form.waitlist select { min-height: 54px; appearance: none; -webkit-appearance: none; padding-right: 40px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; }
form.waitlist label .small { font-size: 13px; }