/* Mobile-first, system fonts, no framework. One accent, two gap colors. */
:root {
  --ink: #1a2233; --muted: #5b6478; --bg: #f6f7fb; --card: #ffffff;
  --accent: #2554e0; --accent-dark: #1c41ad;
  --owe-bg: #fdecec; --owe-ink: #a02020;
  --over-bg: #e8f6ee; --over-ink: #1c6b40;
  --line: #e3e7f0;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink); background: var(--bg); line-height: 1.55; }
main, .hero, footer { max-width: 760px; margin: 0 auto; padding: 0 16px; }

.hero { padding: 40px 16px 8px; text-align: center; }
.eyebrow { color: var(--accent); font-weight: 600; font-size: 0.85rem; letter-spacing: 0.02em; }
h1 { font-size: 1.7rem; line-height: 1.25; margin: 8px 0 12px; }
h1 em { font-style: normal; color: var(--accent); }
.sub { color: var(--muted); font-size: 1.02rem; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 20px; margin: 20px 0; box-shadow: 0 1px 3px rgba(20,30,60,0.06); }

.grid { display: grid; gap: 14px; grid-template-columns: 1fr; }
label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: 0.92rem; }
label.checkbox { flex-direction: row; align-items: center; font-weight: 500; }
input, select { padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px;
  font-size: 1rem; width: 100%; background: #fff; color: var(--ink); }
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.btn-primary { margin-top: 16px; width: 100%; padding: 13px; border: 0; border-radius: 10px;
  background: var(--accent); color: #fff; font-size: 1.05rem; font-weight: 700; cursor: pointer; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-secondary { display: inline-block; padding: 12px 18px; border-radius: 10px; font-weight: 700;
  border: 2px solid var(--accent); color: var(--accent); text-decoration: none; }
.btn-secondary:hover { background: var(--accent); color: #fff; }

.assumptions, .fine { color: var(--muted); font-size: 0.8rem; margin-top: 10px; }
.errors { background: var(--owe-bg); color: var(--owe-ink); border-radius: 8px;
  padding: 10px 10px 10px 28px; margin: 12px 0 0; font-size: 0.92rem; }

#results { margin-top: 24px; border-top: 1px solid var(--line); padding-top: 18px; }
.headline-numbers { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; text-align: center; }
.headline-numbers .big { display: block; font-size: 1.35rem; font-weight: 800; }
.headline-numbers .label { display: block; color: var(--muted); font-size: 0.75rem; }

.breakdown { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 0.95rem; }
.breakdown caption { text-align: left; font-weight: 700; padding-bottom: 8px; }
.breakdown td { padding: 7px 4px; border-bottom: 1px solid var(--line); }
.breakdown td:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.breakdown .total td { font-weight: 800; border-bottom: 0; }

h3 { margin: 18px 0 10px; font-size: 1.05rem; }
.gap { border-radius: 10px; padding: 12px 14px; margin: 10px 0; font-size: 0.95rem; }
.gap-owe { background: var(--owe-bg); color: var(--owe-ink); }
.gap-over { background: var(--over-bg); color: var(--over-ink); }
.gap-even { background: var(--bg); color: var(--muted); }
.gap-action { font-weight: 400; font-size: 0.86rem; display: block; margin-top: 6px; }
.state-note, .proxy-note { color: var(--muted); font-size: 0.85rem; }

.disclaimer { margin-top: 16px; padding: 12px 14px; border-left: 4px solid var(--accent);
  background: var(--bg); font-size: 0.88rem; color: var(--muted); border-radius: 0 8px 8px 0; }

.cta h2 { margin-top: 0; }
.waitlist-row { display: flex; flex-direction: column; gap: 10px; }
.waitlist-row .btn-primary { margin-top: 0; }
.how-label { margin-top: 12px; font-weight: 500; color: var(--muted); }
.preorder { margin-top: 18px; padding-top: 14px; border-top: 1px dashed var(--line); }
#waitlist-msg, #preorder-msg { font-size: 0.9rem; color: var(--accent-dark); min-height: 1.2em; }

.quotes { margin: 28px 0; }
.quotes h2, .faq h2 { font-size: 1.25rem; }
blockquote { background: var(--card); border-left: 4px solid var(--accent); border-radius: 0 10px 10px 0;
  margin: 12px 0; padding: 12px 16px; font-size: 0.95rem; }
blockquote cite { display: block; color: var(--muted); font-size: 0.82rem; margin-top: 6px; font-style: normal; }

.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  margin: 8px 0; padding: 12px 16px; }
.faq summary { font-weight: 700; cursor: pointer; }
.faq p { color: var(--muted); font-size: 0.93rem; }

footer { padding: 28px 16px 40px; color: var(--muted); font-size: 0.82rem; }
footer a { color: var(--accent); }

@media (min-width: 640px) {
  h1 { font-size: 2.1rem; }
  .grid { grid-template-columns: 1fr 1fr; }
  .grid label:nth-child(5) { grid-column: 1; }
  .waitlist-row { flex-direction: row; }
  .waitlist-row input { flex: 1; }
  .waitlist-row .btn-primary { width: auto; }
}