:root {
  --bg:           oklch(28.9% 0.062 263.9);   /* #1B2A4A */
  --bg-deep:      oklch(23.8% 0.047 265.2);   /* #141e35 */
  --surface:      oklch(32.1% 0.071 262.5);   /* #1f3257 */
  --fg:           oklch(100% 0 0);            /* #FFFFFF */
  --muted:        oklch(100% 0 0 / 0.58);     /* rgba(255,255,255,0.58) */
  --border:       oklch(100% 0 0 / 0.12);     /* rgba(255,255,255,0.12) */
  --accent:       oklch(74.3% 0.117 89.5);    /* #C9A84C */
  --accent-hover: oklch(67.2% 0.109 86.7);    /* #b3913e */

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', -apple-system, system-ui, sans-serif;

  --pad:          clamp(20px, 5vw, 48px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 17px; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: inherit; }

/* ── SITE LOGO BAR ── */
.top-bar {
  padding: 20px var(--pad);
  background: oklch(100% 0 0);
  border-bottom: 1px solid oklch(28.9% 0.062 263.9 / 0.12);
  display: flex;
  justify-content: center;
}
.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.logo img { display: block; height: 104px; width: auto; }

/* ── MAIN ── */
main {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: clamp(64px, 9vw, 108px) var(--pad);
}
.opt-in {
  max-width: 640px;
  width: 100%;
}
.eyebrow {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.headline {
  font-family: var(--font-display);
  font-size: clamp(34px, 5.5vw, 60px);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: 28px;
}
.subheadline {
  font-size: 18px;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 20px;
}
.subheadline:last-of-type {
  margin-bottom: 40px;
}

/* Kit contents */
.kit-contents {
  margin-bottom: 48px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.kit-contents-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}
.kit-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.kit-item:first-of-type { border-top: 1px solid var(--border); }
.kit-item-name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg);
  margin-bottom: 8px;
}
.kit-item-desc {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
}

/* Form */
.form-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.form-input {
  font-family: var(--font-body);
  font-size: 16px;
  background: oklch(100% 0 0 / 0.06);
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 16px 20px;
  outline: none;
  transition: border-color 0.18s;
  appearance: none;
  -webkit-appearance: none;
}
.form-input::placeholder { color: oklch(100% 0 0 / 0.35); }
.form-input:focus { border-color: oklch(100% 0 0 / 0.35); }
.form-label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 4px 0;
  font-size: 13px;
  letter-spacing: 0.01em;
  color: var(--muted);
  line-height: 1.5;
  cursor: pointer;
}
.form-consent input[type="checkbox"] {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 1px;
  accent-color: var(--accent);
  cursor: pointer;
}
.form-consent input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 3px;
}
.btn-submit {
  margin-top: 6px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--accent);
  color: var(--bg);
  border: 2px solid var(--accent);
  padding: 16px 32px;
  cursor: pointer;
  transition: background 0.18s, border-color 0.18s, opacity 0.18s;
  white-space: nowrap;
}
.btn-submit:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}
.btn-submit:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 3px;
}
.btn-submit:disabled {
  cursor: default;
  opacity: 0.7;
}
.form-note {
  font-size: 13px;
  letter-spacing: 0.01em;
  color: var(--muted);
  opacity: 0.8;
}

/* ── FOOTER ── */
.footer {
  background: oklch(95.5% 0.009 264.5);
  border-top: 1px solid oklch(28.9% 0.062 263.9 / 0.12);
  padding: 32px var(--pad);
  text-align: center;
}
.footer-copy {
  font-size: 12px;
  letter-spacing: 0.01em;
  color: oklch(28.9% 0.062 263.9 / 0.72);
}
.footer-back {
  font-size: 13px;
  letter-spacing: 0.01em;
  color: var(--bg);
  text-decoration: none;
  margin-bottom: 8px;
  display: block;
  transition: color 0.18s;
}
.footer-back:hover,
.footer-back:focus-visible {
  color: var(--bg-deep);
  text-decoration: underline;
}
a:focus-visible {
  outline: 2px solid var(--bg);
  outline-offset: 3px;
}

/* ── MOTION: entrance reveal ── */
@keyframes reveal-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.eyebrow, .headline, .subheadline, .kit-contents, .form-block {
  animation: reveal-up 600ms cubic-bezier(0.2,0,0,1) both;
}
.eyebrow       { animation-delay: 0ms; }
.headline      { animation-delay: 70ms; }
.subheadline   { animation-delay: 140ms; }
.kit-contents  { animation-delay: 220ms; }
.form-block    { animation-delay: 280ms; }

@media (prefers-reduced-motion: reduce) {
  .eyebrow, .headline, .subheadline, .kit-contents, .form-block {
    animation: none;
  }
}