/* Self-hosted fonts — latin subset via google-webfonts-helper */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../assets/fonts/inter-v20-latin-regular.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../assets/fonts/inter-v20-latin-500.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../assets/fonts/inter-v20-latin-600.woff2') format('woff2');
}

@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../assets/fonts/montserrat-v31-latin-600.woff2') format('woff2');
}

@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../assets/fonts/montserrat-v31-latin-700.woff2') format('woff2');
}

:root {
  /* Canvas & surfaces */
  --bg-canvas: #FAFAF5;
  --bg-card: #FFFFFF;
  --bg-input: #F3F4F6;

  /* Brand gradient */
  --brand-purple-start: #4A1D96;
  --brand-purple-end: #7C3AED;
  --brand-gradient: linear-gradient(135deg, var(--brand-purple-start), var(--brand-purple-end));

  /* Typography colors */
  --text-primary: #111827;
  --text-secondary: #4B5563;
  --text-error: #DC2626;
  --text-on-brand: #FFFFFF;

  /* Borders & shadows */
  --border-light: #E5E7EB;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.06);
  --shadow-mockup: 0 20px 40px rgba(74, 29, 150, 0.15);

  /* Watermark */
  --watermark-opacity: 0.04;

  /* Layout */
  --layout-max-width: 1200px;
  --radius-card: 12px;
  --radius-button: 8px;
  --radius-input: 6px;

  /* Overlays */
  --overlay-scrim: rgba(17, 24, 39, 0.5);

  /* Footer (dark theme) */
  --bg-footer: #130f22;
  --text-footer-primary: #FAFAF5;
  --text-footer-secondary: #9CA3AF;
  --border-footer: rgba(255, 255, 255, 0.08);

  /* Polish */
  --border-card-tint: rgba(74, 29, 150, 0.06);
  --border-header-tint: rgba(74, 29, 150, 0.04);
  --ambient-glow: rgba(124, 58, 237, 0.04);
  --bg-header-scrim: color-mix(in srgb, var(--bg-canvas) 90%, transparent);
  --icon-surface: rgba(124, 58, 237, 0.08);
  --shadow-cta: 0 4px 14px rgba(74, 29, 150, 0.18);

  /* Header scroll-compact threshold (IntersectionObserver sentinel offset) */
  --header-scroll-threshold: 24px;

  /* Logo lockup — adjust sizes here only (desktop defaults) */
  --logo-mark-size: 54px;
  --logo-mark-footer-size: 36px;
  --logo-text-size: 1.5rem;
  --logo-lockup-gap: 0.85rem;

}

*,
*::before,
*::after {
  box-sizing: border-box;
}

#hero,
#lead-capture {
  scroll-margin-top: 5.5rem; /* ~88px — sticky header clearance */
}

body,
h1,
h2,
h3,
h4,
p,
ul,
figure {
  margin: 0;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
  background:
    radial-gradient(circle at 50% 0px, var(--ambient-glow) 0%, rgba(250, 250, 245, 0) 50vw),
    var(--bg-canvas);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

body::before,
body::after {
  content: '';
  position: fixed;
  pointer-events: none;
  z-index: 0;
  opacity: var(--watermark-opacity);
  background-repeat: no-repeat;
  background-size: contain;
}

body::before {
  top: 0;
  right: 0;
  width: 280px;
  height: 280px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cpath fill='none' stroke='%234A1D96' stroke-width='1.5' d='M20 40h40v40H20zm60 0h40v40H80zm60 0h40v40h-40zM40 100h40v40H40zm60 0h40v40h-40z'/%3E%3Ccircle cx='160' cy='160' r='24' fill='none' stroke='%237C3AED' stroke-width='1.5'/%3E%3C/svg%3E");
}

body::after {
  bottom: 0;
  left: 0;
  width: 320px;
  height: 320px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 240 240'%3E%3Cpath fill='none' stroke='%234A1D96' stroke-width='1.5' d='M30 180c40-60 80-60 120 0M50 140c30-40 60-40 90 0M70 100c20-20 40-20 60 0'/%3E%3Cpath fill='none' stroke='%237C3AED' stroke-width='1' d='M180 40l20 20-20 20-20-20z'/%3E%3C/svg%3E");
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--brand-purple-end);
}

ul {
  padding-left: 0;
  list-style: none;
}

h1,
h2,
h3 {
  font-family: 'Montserrat', system-ui, sans-serif;
  color: var(--text-primary);
}

h1 {
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h2 {
  font-weight: 600;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  line-height: 1.3;
}

h3 {
  font-weight: 600;
  font-size: 1.125rem;
  line-height: 1.4;
}

.container {
  width: 100%;
  max-width: var(--layout-max-width);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg-header-scrim);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--border-header-tint);
  transition: padding-block 0.2s ease-in-out;
}

.site-header.is-scrolled {
  padding-block: 0.625rem;
  --logo-mark-size: 40px;
  --logo-text-size: 1.2rem;
  --logo-lockup-gap: 0.5rem;
}

.site-header.is-scrolled .header-cta {
  min-height: 40px;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.scroll-sentinel {
  position: absolute;
  top: var(--header-scroll-threshold);
  left: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
  visibility: hidden;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo-lockup {
  display: inline-flex;
  align-items: center;
  gap: var(--logo-lockup-gap);
  text-decoration: none;
}

.logo-mark {
  width: var(--logo-mark-size);
  height: var(--logo-mark-size);
  flex-shrink: 0;
  transition: width 0.2s ease-in-out, height 0.2s ease-in-out;
}

.logo-text {
  font-family: 'Montserrat', system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  font-size: var(--logo-text-size);
  transition: font-size 0.2s ease-in-out;
}

.logo-text-dot {
  color: var(--brand-purple-end);
}

.logo-mark-bw {
  width: var(--logo-mark-footer-size);
  height: var(--logo-mark-footer-size);
  filter: invert(1);
  opacity: 0.9;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.625rem 1.25rem;
  background: var(--brand-gradient);
  color: var(--text-on-brand);
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-cta);
  transition: filter 0.2s ease-in-out, min-height 0.2s ease-in-out, padding 0.2s ease-in-out, font-size 0.2s ease-in-out;
}

.header-cta:hover {
  filter: brightness(1.1);
}

/* Hero */
.hero {
  padding-block: 2.5rem 4.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 1.625rem;
}

.hero-copy h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.875rem);
}

.hero-subheadline {
  font-size: 1.0625rem;
  max-width: 36rem;
}

.hero-signup-col {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  align-items: stretch;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.45;
  text-align: left;
  background: var(--bg-card);
  border: 1px solid var(--border-card-tint);
  border-radius: var(--radius-card);
  padding: 0.625rem 0.875rem;
}

.hero-trust__text {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.hero-trust__line {
  display: block;
}

.inline-icon {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  color: var(--brand-purple-end);
}

.hero-briefing {
  margin-top: 1.5rem;
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.375rem 1.5rem;
  border-radius: var(--radius-card);
  background: var(--bg-card);
  border: 1px solid var(--border-card-tint);
  box-shadow: var(--shadow-mockup);
  position: relative;
  overflow: hidden;
}

.hero-briefing::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--brand-gradient);
}

.hero-briefing__tag {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.hero-briefing__status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-purple-end);
  flex-shrink: 0;
  animation: hero-briefing-pulse 2s ease-in-out infinite;
}

@keyframes hero-briefing-pulse {
  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }
}

.hero-briefing__headline {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--text-primary);
  font-weight: 400;
}

.hero-briefing__headline::before {
  content: '>';
  color: var(--brand-purple-end);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  margin-right: 0.5rem;
}

.hero-briefing__headline em {
  font-style: italic;
  color: var(--brand-purple-start);
}

.hero-briefing__attribution {
  margin: 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-light);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.hero .signup-card {
  padding: 2.5rem;
  box-shadow:
    0 10px 25px -5px rgba(0, 0, 0, 0.05),
    0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

.hero .form-row {
  flex-wrap: nowrap;
  gap: 0;
  align-items: stretch;
}

.hero .form-row .form-group {
  margin-bottom: 0;
  flex: 1 1 auto;
  min-width: 0;
}

.hero .form-row .form-group .form-input {
  height: 100%;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  border-right: none;
  border-top-left-radius: 999px;
  border-bottom-left-radius: 999px;
}

.hero .form-row .btn-primary {
  flex-shrink: 0;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  border-top-right-radius: 999px;
  border-bottom-right-radius: 999px;
}

.signup-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card-tint);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 2rem;
}

.signup-card h2 {
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
}

/* Forms */
.signup-card form {
  position: relative;
}

.cf-turnstile {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
  contain: paint;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.form-row .form-input {
  flex: 1 1 12rem;
}

.form-input,
.form-select {
  width: 100%;
  min-height: 44px;
  padding: 0.75rem 1rem;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-input);
  transition: border-color 0.15s ease;
}

.form-input:focus-visible,
.form-select:focus-visible,
.form-textarea:focus-visible {
  border-color: var(--brand-purple-end);
}

.form-select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-secondary) 50%),
    linear-gradient(135deg, var(--text-secondary) 50%, transparent 50%);
  background-position: calc(100% - 20px) calc(50% + 2px), calc(100% - 15px) calc(50% + 2px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 2.5rem;
}

.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  margin-top: 0.75rem;
  min-height: 44px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.form-consent input[type="checkbox"] {
  margin-top: 0.15rem;
  flex-shrink: 0;
}

.hero .form-consent {
  margin-top: 0.625rem;
}

.form-subtext {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
  font-size: 0.875rem;
}

.form-privacy {
  margin-top: 1rem;
  font-size: 0.875rem;
}

.form-success {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--brand-purple-end);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.75rem 1.5rem;
  background: var(--brand-gradient);
  color: var(--text-on-brand);
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius-button);
  cursor: pointer;
  box-shadow: var(--shadow-cta);
  transition: filter 0.2s ease-in-out;
}

.btn-primary:hover {
  filter: brightness(1.1);
}

.btn-primary--full {
  width: 100%;
}

/* Personas */
.personas {
  padding-block: 4rem;
}

.personas-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.persona-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card-tint);
  border-radius: var(--radius-card);
  padding: 2rem;
  box-shadow: var(--shadow-card);
}

.persona-card h2 {
  margin-bottom: 0.25rem;
}

.persona-card__subhead {
  color: var(--text-secondary);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  margin-top: 0;
  margin-bottom: 1.5rem;
  text-wrap: balance;
}

.persona-punchline {
  margin-top: 1.125rem;
  margin-bottom: 0;
  color: var(--text-secondary);
  font-style: normal;
  font-weight: 500;
  font-size: 0.9375rem;
}

.persona-points {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.persona-point h3 {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-family: 'Inter', system-ui, sans-serif;
  text-wrap: balance;
}

.persona-point > p:not(.persona-punchline) {
  color: var(--text-primary);
  font-size: 1rem;
  line-height: 1.65;
  text-wrap: pretty;
}

.persona-point h3::before {
  content: '';
  width: 6px;
  height: 6px;
  margin-top: 0.5em;
  border-radius: 50%;
  background: var(--brand-purple-end);
  flex-shrink: 0;
}

/* Features */
.features {
  padding-block: 4rem;
  border-top: 1px solid var(--border-header-tint);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card-tint);
  border-radius: var(--radius-card);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  background: var(--icon-surface);
  border-radius: 10px;
  color: var(--brand-purple-end);
}

.feature-card h3 {
  margin-bottom: 0.5rem;
}

/* Lead capture */
.lead-capture {
  padding-block: 5rem 2rem;
  border-top: 1px solid var(--border-header-tint);
}

.lead-capture .signup-card {
  position: relative;
  overflow: hidden;
  max-width: 720px;
  margin-inline: auto;
}

.lead-capture .signup-card::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: var(--brand-gradient);
}

.lead-capture h2 {
  margin-bottom: 1.5rem;
}

/* Footer */
.site-footer {
  padding-block: 3rem 2rem;
  margin-top: 2rem;
  background: var(--bg-footer);
  border-top: 1px solid var(--border-footer);
  color: var(--text-footer-secondary);
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}

.site-footer .logo-text {
  color: var(--text-footer-primary);
}

.footer-tagline {
  color: var(--text-footer-primary);
  font-weight: 500;
}

.footer-copyright {
  font-size: 0.875rem;
}

.site-footer a {
  color: var(--text-footer-secondary);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--text-footer-primary);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
}

.footer-legal a {
  font-weight: 500;
}

/* Legal pages */
.legal-page {
  max-width: min(var(--layout-max-width), 42rem);
  margin-inline: auto;
  padding-block: 2rem 4rem;
}

.legal-page h1 {
  margin-bottom: 0.5rem;
}

.legal-page .legal-meta {
  margin-bottom: 2.5rem;
  color: var(--text-secondary);
}

.legal-page section {
  margin-bottom: 2rem;
}

.legal-page section h2 {
  margin-bottom: 0.75rem;
}

.legal-page section p + p {
  margin-top: 1rem;
}

.legal-page ul {
  list-style: disc;
  padding-left: 1.25rem;
  margin-top: 0.75rem;
}

.header-back {
  font-weight: 500;
  text-decoration: none;
}

.header-back:hover {
  text-decoration: underline;
}

/* Data Collection List */
.data-collection-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.data-group-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card-tint);
  border-radius: var(--radius-card);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

.data-group-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.125rem;
  color: var(--brand-purple-end);
  margin-top: 0;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.data-group-card h3::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-gradient);
  display: inline-block;
}

.data-item-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.data-item {
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 0.75rem;
}

.data-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.data-label {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.9375rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
}

.data-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.data-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.data-badge--required {
  background: rgba(220, 38, 38, 0.08);
  color: var(--text-error);
}

.data-badge--optional {
  background: rgba(75, 85, 99, 0.08);
  color: var(--text-secondary);
}

.data-badge--automatic {
  background: rgba(124, 58, 237, 0.08);
  color: var(--brand-purple-end);
}

.data-scope {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-input);
  padding: 0.125rem 0.5rem;
  border-radius: 4px;
  white-space: nowrap;
}

.data-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.375rem;
  line-height: 1.5;
}

.options-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding: 0;
  border: none;
}

.options-group legend {
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.options-group[hidden],
.radio-card-group[hidden],
.participation-group[hidden] {
  display: none;
}

.js-conditional-field.is-hidden {
  display: none;
}

.checkbox-option {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  min-height: 44px;
  padding: 0.75rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-input);
  background: var(--bg-input);
  color: var(--text-primary);
  cursor: pointer;
}

.checkbox-option:has(input:checked) {
  border-color: var(--brand-purple-end);
  background: var(--bg-card);
}

.checkbox-option input {
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.participation-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding: 0;
  border: none;
}

.participation-group legend {
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.radio-card-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  padding: 0;
  border: none;
}

.radio-card-group legend {
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.radio-card {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  min-height: 44px;
  padding: 0.75rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-input);
  background: var(--bg-input);
  color: var(--text-primary);
  cursor: pointer;
}

.radio-card:has(input:checked) {
  border-color: var(--brand-purple-end);
  background: var(--bg-card);
}

.radio-card input {
  flex-shrink: 0;
}

.form-field-error {
  min-height: 1.25rem;
  margin-top: 0.25rem;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-error);
}

.form-field-error[hidden] {
  display: block;
  visibility: hidden;
}

.waitlist-sticky {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 100;
  min-height: 44px;
  min-width: 44px;
  padding: 0.75rem 1.25rem;
  border: none;
  border-radius: var(--radius-button);
  background: var(--brand-gradient);
  color: var(--text-on-brand);
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-cta);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.waitlist-sticky[hidden] {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  .waitlist-sticky {
    transition: none;
  }
}

.form-textarea {
  width: 100%;
  min-height: 44px;
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-input);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  color: var(--text-primary);
  resize: vertical;
  transition: border-color 0.15s ease;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--brand-purple-end);
  outline-offset: 2px;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-briefing {
    max-width: 100%;
  }

  .personas-grid {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    flex-direction: column;
  }

  .hero .form-row {
    gap: 0.75rem;
  }

  .hero .form-row .form-group .form-input {
    border-radius: var(--radius-input);
    border-right: 1px solid var(--border-light);
  }

  .hero .form-row .btn-primary {
    border-radius: var(--radius-button);
  }

  .form-row .form-input {
    flex-basis: 100%;
  }

  :root {
    --logo-mark-size: 44px;
    --logo-mark-footer-size: 28px;
    --logo-text-size: 1.25rem;
    --logo-lockup-gap: 0.6rem;
  }

  .site-header .logo-lockup {
    min-height: 44px;
  }

  .site-header.is-scrolled {
    padding-block: 0.5rem;
    --logo-mark-size: 28px;
    --logo-text-size: 0.9375rem;
  }

  .site-header.is-scrolled .header-cta {
    min-height: 36px;
    padding: 0.4375rem 0.875rem;
    font-size: 0.8125rem;
  }

}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .site-header,
  .logo-mark,
  .logo-text,
  .header-cta,
  .btn-primary {
    transition: none;
  }

  .hero-briefing__status {
    animation: none;
  }
}