:root {
  color-scheme: light dark;
  --brand: #0084f8;
  --brand-strong: #0967b8;
  --brand-deep: #064a87;
  --brand-wash: rgba(0, 132, 248, 0.1);
  --page: #f2f7fb;
  --surface: #ffffff;
  --surface-solid: #ffffff;
  --surface-soft: #eaf3fa;
  --text: #17212b;
  --text-muted: #5b6875;
  --border: rgba(27, 66, 96, 0.14);
  --shadow: none;
  --max-width: 70rem;
  --reading-width: 45rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --brand: #64b5f6;
    --brand-strong: #8bc8f8;
    --brand-deep: #b8ddfa;
    --brand-wash: rgba(100, 181, 246, 0.13);
    --page: #0d141a;
    --surface: #172028;
    --surface-solid: #172028;
    --surface-soft: #111c24;
    --text: #f2f6f9;
    --text-muted: #a9b6c1;
    --border: rgba(179, 211, 235, 0.16);
    --shadow: none;
  }
}

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

html {
  min-width: 20rem;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-family:
    Inter,
    ui-sans-serif,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--brand-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--brand-deep);
}

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.65rem 0.9rem;
  border-radius: 0.6rem;
  background: var(--surface-solid);
  color: var(--text);
  font-weight: 700;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  padding-top: env(safe-area-inset-top);
  border-bottom: 1px solid var(--border);
  background: var(--page);
}

.topbar__inner {
  width: min(calc(100% - 2rem), var(--max-width));
  min-height: 4.5rem;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  border-radius: 0.5rem;
  text-decoration: none;
}

.brand img {
  display: block;
  width: 9.4rem;
  height: auto;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.topnav a {
  min-height: 2.75rem;
  padding: 0.55rem 0.8rem;
  display: inline-flex;
  align-items: center;
  border-radius: 0.7rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.topnav a:hover,
.topnav a[aria-current="page"] {
  background: var(--brand-wash);
  color: var(--brand-deep);
}

.topnav .topnav__play {
  margin-left: 0.35rem;
  background: var(--brand-strong);
  color: #ffffff;
}

.topnav .topnav__play:hover {
  background: var(--brand-deep);
  color: #ffffff;
}

@media (prefers-color-scheme: dark) {
  .topnav .topnav__play,
  .topnav .topnav__play:hover {
    color: #08131c;
  }
}

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.hero__inner {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: clamp(4rem, 9vw, 7.5rem) 0 clamp(3.5rem, 8vw, 6rem);
}

.hero--illustrated .hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(19rem, 0.85fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
}

.hero__copy {
  min-width: 0;
}

.hero__art {
  width: 100%;
  max-width: 32rem;
  height: auto;
  display: block;
  justify-self: end;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--brand-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 48rem;
  margin: 0;
  font-size: clamp(2.7rem, 7vw, 5.4rem);
  font-weight: 780;
  letter-spacing: -0.055em;
  line-height: 0.98;
  text-wrap: balance;
}

.hero__lede {
  max-width: 41rem;
  margin: 1.5rem 0 0;
  color: var(--text-muted);
  font-size: clamp(1.08rem, 2.2vw, 1.3rem);
  line-height: 1.55;
  text-wrap: pretty;
}

.hero__actions,
.panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.button {
  min-height: 3rem;
  padding: 0.7rem 1.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  background: var(--surface-solid);
  color: var(--text);
  font-weight: 750;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  box-shadow: 0 1px 2px rgba(15, 39, 57, 0.06);
  transition:
    transform 140ms ease,
    border-color 140ms ease,
    background-color 140ms ease;
}

.button:hover {
  border-color: var(--brand);
  background: var(--surface-soft);
  color: var(--text);
  transform: translateY(-1px);
}

.button--primary {
  border-color: var(--brand-strong);
  background: var(--brand-strong);
  color: #ffffff;
}

.button--primary:hover {
  border-color: var(--brand-deep);
  background: var(--brand-deep);
  color: #ffffff;
}

@media (prefers-color-scheme: dark) {
  .button--primary,
  .button--primary:hover {
    color: #08131c;
  }
}

.page-content {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 4rem) 0 clamp(4rem, 8vw, 7rem);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1.25rem;
}

.panel {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel--story {
  grid-column: span 7;
}

.panel--impact {
  grid-column: span 5;
  background: var(--surface-soft);
}

.panel--signup {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(14rem, 0.72fr) minmax(20rem, 1.28fr);
  align-items: center;
  gap: 2rem;
  background: var(--surface-soft);
}

.signup-form {
  position: relative;
  min-width: 0;
}

.signup-form > label {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 0.9rem;
  font-weight: 750;
}

.signup-form__fields {
  display: flex;
  gap: 0.75rem;
}

.signup-form__fields input {
  width: 100%;
  min-width: 0;
  min-height: 3rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  background: var(--surface-solid);
  color: var(--text);
  font: inherit;
  line-height: 1.2;
}

.signup-form__fields input::placeholder {
  color: var(--text-muted);
  opacity: 0.8;
}

.signup-form__fields input:hover {
  border-color: var(--brand);
}

.signup-form__bot-field {
  position: absolute;
  left: -5000px;
}

.panel .signup-form__note {
  margin-top: 0.55rem;
  font-size: 0.8rem;
}

.panel--contact {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(14rem, 0.72fr) minmax(20rem, 1.28fr);
  align-items: start;
  gap: 2rem;
}

.panel--contact:target {
  scroll-margin-top: 5.5rem;
}

.panel__intro {
  position: sticky;
  top: 5.5rem;
}

.feedback-privacy {
  font-size: 0.85rem;
}

.feedback-form {
  min-width: 0;
}

.feedback-form iframe {
  display: block;
  width: 100%;
  height: min(48rem, 80vh);
  min-height: 38rem;
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  background: #ffffff;
}

.feedback-form__fallback {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.85rem;
}

.panel h2,
.policy-article h2,
.summary-card h2 {
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 2rem);
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.panel p {
  margin: 0.9rem 0 0;
  color: var(--text-muted);
}

.panel__actions {
  margin-top: 1.5rem;
}

.impact-list,
.summary-list {
  margin: 1.35rem 0 0;
  padding: 0;
  list-style: none;
}

.impact-list {
  display: grid;
  gap: 0.75rem;
}

.impact-list a {
  min-height: 3.35rem;
  padding: 0.8rem 0.95rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--border);
  border-radius: 0.85rem;
  background: color-mix(in srgb, var(--surface-solid) 70%, transparent);
  color: var(--text);
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
}

.impact-list a::after {
  color: var(--brand-strong);
  content: "\2197";
  font-size: 1.1rem;
}

.impact-list a:hover {
  border-color: var(--brand);
  background: var(--surface-solid);
}

.privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, var(--reading-width)) minmax(15rem, 1fr);
  align-items: start;
  gap: 1.5rem;
}

.policy-article,
.summary-card {
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.policy-article {
  padding: clamp(1.6rem, 5vw, 3.25rem);
}

.policy-section + .policy-section {
  margin-top: 2.4rem;
  padding-top: 2.4rem;
  border-top: 1px solid var(--border);
}

.policy-article p {
  margin: 0.85rem 0 0;
  color: var(--text-muted);
}

.policy-article h2 {
  font-size: clamp(1.3rem, 2.5vw, 1.65rem);
}

.summary-card {
  position: sticky;
  top: 6rem;
  padding: 1.5rem;
}

.summary-card h2 {
  font-size: 1.05rem;
}

.summary-list {
  display: grid;
  gap: 1rem;
}

.summary-list li {
  position: relative;
  padding-left: 1.7rem;
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.5;
}

.summary-list li::before {
  position: absolute;
  top: 0.34rem;
  left: 0;
  width: 0.85rem;
  height: 0.85rem;
  border: 3px solid var(--surface-solid);
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 1px var(--brand);
  content: "";
}

.updated {
  margin: 0 0 1.25rem;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-footer {
  border-top: 1px solid var(--border);
}

.site-footer__inner {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 1.5rem 0 max(1.5rem, env(safe-area-inset-bottom));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.site-footer p {
  margin: 0;
}

.site-footer nav {
  display: flex;
  gap: 1rem;
}

@media (max-width: 48rem) {
  .hero--illustrated .hero__inner {
    grid-template-columns: 1fr;
  }

  .hero__art {
    width: min(24rem, 82%);
    margin-top: 1rem;
    justify-self: center;
  }

  .panel--story,
  .panel--impact {
    grid-column: 1 / -1;
  }

  .panel--contact,
  .panel--signup,
  .privacy-layout {
    grid-template-columns: 1fr;
  }

  .panel--contact .panel__actions {
    margin-top: 0;
  }

  .panel__intro {
    position: static;
  }

  .feedback-form iframe {
    height: 46rem;
    min-height: 0;
  }

  .summary-card {
    position: static;
    grid-row: 1;
  }
}

@media (max-width: 35rem) {
  .topbar__inner {
    min-height: 4rem;
  }

  .brand img {
    width: 7.8rem;
  }

  .topnav a {
    padding-inline: 0.55rem;
    font-size: 0.82rem;
  }

  .topnav a:not([aria-current="page"]):not(.topnav__play) {
    display: none;
  }

  .hero__actions,
  .panel__actions,
  .button {
    width: 100%;
  }

  .hero--illustrated .hero__art {
    display: none;
  }

  .signup-form__fields {
    align-items: stretch;
    flex-direction: column;
  }

  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}