:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --surface-2: #f2f0eb;
  --border: #e6e3dc;
  --text: #1c1b19;
  --muted: #66635d;
  --accent: #e11d48;
  --accent-hover: #be123c;
  --accent-soft: #ffe4e9;
  --accent-text: #ffffff;
  --ok: #15803d;
  --radius: 14px;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.05), 0 8px 24px rgb(0 0 0 / 0.06);
  --font: ui-sans-serif, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --display: 'Fraunces', Georgia, serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #12110f;
    --surface: #1b1a17;
    --surface-2: #24221e;
    --border: #34312b;
    --text: #efede8;
    --muted: #a19d95;
    --accent: #fb7185;
    --accent-hover: #fda4af;
    --accent-soft: #3b1720;
    --accent-text: #2a0710;
    --ok: #4ade80;
    --shadow: none;
    color-scheme: dark;
  }
}
:root[data-theme='dark'] {
  --bg: #12110f;
  --surface: #1b1a17;
  --surface-2: #24221e;
  --border: #34312b;
  --text: #efede8;
  --muted: #a19d95;
  --accent: #fb7185;
  --accent-hover: #fda4af;
  --accent-soft: #3b1720;
  --accent-text: #2a0710;
  --ok: #4ade80;
  --shadow: none;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}
html {
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 var(--font);
}
img {
  max-width: 100%;
}
a {
  color: var(--accent);
}
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 20px;
}
.narrow {
  max-width: 720px;
}

/* header / footer */
.site-header {
  padding: 18px 0;
}
.site-header .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 80px;
  padding: 28px 0 40px;
  font-size: 14px;
  color: var(--muted);
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
}
.site-footer nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.site-footer a {
  color: var(--muted);
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font: inherit;
  font-weight: 650;
  border: 0;
  border-radius: 999px;
  padding: 14px 26px;
  cursor: pointer;
  text-decoration: none;
  background: var(--accent);
  color: var(--accent-text);
  transition: background 0.15s, transform 0.15s;
}
.btn:hover {
  background: var(--accent-hover);
}
.btn:active {
  transform: translateY(1px);
}
.btn[disabled] {
  opacity: 0.6;
  cursor: progress;
}
.btn.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

/* hero */
.hero {
  padding: 56px 0 40px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 12px;
  border-radius: 999px;
}
h1,
h2 {
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
h1 {
  font-size: clamp(36px, 5.5vw, 58px);
  margin: 16px 0;
}
h2 {
  font-size: clamp(28px, 3.6vw, 38px);
  margin: 0 0 16px;
}
.lede {
  font-size: 20px;
  color: var(--muted);
  margin: 0 0 28px;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}
.price-note {
  color: var(--muted);
  font-size: 15px;
}
.price-note strong {
  color: var(--text);
  font-size: 18px;
}

/* product card */
.kit {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 28px;
  box-shadow: var(--shadow);
}
.kit h3 {
  margin: 0 0 4px;
  font-size: 18px;
}
.kit .price {
  font-family: var(--display);
  font-size: 44px;
  font-weight: 600;
  margin: 8px 0 16px;
}
.kit ul {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: grid;
  gap: 10px;
}
.kit li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.kit li::before {
  content: '✓';
  color: var(--ok);
  font-weight: 700;
}
.kit .btn {
  width: 100%;
}
.kit small {
  display: block;
  text-align: center;
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

/* sections */
section {
  padding: 56px 0;
}
.signals {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 28px;
}
.signal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.signal b {
  display: block;
  margin-bottom: 6px;
}
.signal p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}
.signal .num {
  font-family: var(--display);
  color: var(--accent);
  font-size: 22px;
  font-weight: 600;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.checklist {
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.checklist li {
  padding-left: 28px;
  position: relative;
}
.checklist li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}
.checklist.no li::before {
  content: '×';
  color: var(--muted);
}

.faq details {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.faq summary {
  cursor: pointer;
  font-weight: 650;
  list-style: none;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::after {
  content: '+';
  float: right;
  color: var(--muted);
}
.faq details[open] summary::after {
  content: '–';
}
.faq p {
  color: var(--muted);
  margin: 10px 0 0;
}

.final-cta {
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 48px 24px;
}
.disclaimer {
  font-size: 13px;
  color: var(--muted);
  margin-top: 28px;
}

.banner {
  border-radius: var(--radius);
  padding: 14px 18px;
  margin: 16px 0;
  background: var(--surface-2);
  border: 1px solid var(--border);
}
.banner.error {
  border-color: var(--accent);
  background: var(--accent-soft);
}

/* thank-you page */
.files {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 10px;
}
.files a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
}
.files a:hover {
  border-color: var(--accent);
}
.files a span {
  color: var(--accent);
  white-space: nowrap;
}
.spinner {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
  display: inline-block;
  vertical-align: middle;
  margin-right: 10px;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* legal */
.legal h1 {
  font-size: clamp(32px, 4vw, 44px);
}
.legal h2 {
  font-size: 22px;
  margin-top: 32px;
  font-family: var(--font);
  letter-spacing: 0;
}
.legal p,
.legal li {
  color: var(--text);
}
.legal .updated {
  color: var(--muted);
}

@media (max-width: 820px) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }
  .hero {
    padding-top: 24px;
    gap: 32px;
  }
  section {
    padding: 40px 0;
  }
}