:root {
  --background: #f6f8f2;
  --surface: #fffefc;
  --surface-secondary: #e6f0e7;
  --surface-alt: #f1f5ed;
  --text-primary: #1f2623;
  --text-secondary: #5e6a66;
  --border: #d3ddd7;
  --action-primary: #2f7d6d;
  --source: #4f8a7d;
  --link-accent: #356d9a;
  --link-accent-soft: #dceaf6;
  --media-accent: #cb5a63;
  --media-accent-soft: #f6d9db;
  --reminder-accent: #c8922e;
  --reminder-accent-soft: #f6e5be;
  --radius-sm: 8px;
  --radius-lg: 18px;
  --shadow-soft: 0 18px 44px rgba(31, 38, 35, 0.06);
  color-scheme: light;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #121816;
    --surface: #202825;
    --surface-secondary: #2b352f;
    --surface-alt: #19211e;
    --text-primary: #f1f7f3;
    --text-secondary: #a8b7b1;
    --border: #37433d;
    --action-primary: #63c0a8;
    --source: #84c9b9;
    --link-accent: #7fb6e1;
    --link-accent-soft: #203443;
    --media-accent: #ff9a8d;
    --media-accent-soft: #4a2d2b;
    --reminder-accent: #e3bc69;
    --reminder-accent-soft: #4a3c1d;
    --shadow-soft: 0 22px 52px rgba(0, 0, 0, 0.24);
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(79, 138, 125, 0.08), transparent 22%),
    linear-gradient(180deg, var(--surface-alt) 0%, var(--background) 220px);
  color: var(--text-primary);
  letter-spacing: 0;
}

a {
  color: inherit;
}

p,
h1,
h2,
h3,
ul,
dl {
  margin: 0;
}

.page-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 0 28px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--action-primary);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
}

.brand-name {
  margin-bottom: 2px;
  color: var(--text-primary);
  font-size: clamp(1.2rem, 2.2vw, 1.8rem);
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.brand-copy {
  color: var(--text-secondary);
  font-size: 14px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.site-nav a {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  text-decoration: none;
  font-size: 14px;
  background: rgba(255, 255, 255, 0.45);
}

.hero,
.approach-layout,
.closing-card {
  display: grid;
  gap: 24px;
}

.hero {
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.8fr);
  align-items: start;
  padding: 24px 0 28px;
}

.hero h1 {
  max-width: 12ch;
  font-size: clamp(2.8rem, 6vw, 5rem);
  line-height: 0.98;
  font-weight: 760;
}

.eyebrow {
  margin-bottom: 10px;
  color: var(--source);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-text,
.section-heading h2 + p,
.info-card p,
.feature-list,
.panel-card p,
.closing-card p,
.approach-summary p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.hero-text {
  max-width: 62ch;
  margin-top: 16px;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  text-decoration: none;
  font-weight: 600;
}

.button-primary {
  background: var(--action-primary);
  border-color: var(--action-primary);
  color: #fff;
}

.button-secondary {
  background: var(--surface);
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin-top: 18px;
  list-style: none;
}

.hero-points li,
.chip {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-secondary);
  font-size: 14px;
}

.chip-source {
  background: rgba(79, 138, 125, 0.14);
  color: var(--source);
}

.chip-reminder {
  background: rgba(200, 146, 46, 0.14);
  color: var(--reminder-accent);
}

.hero-panel,
.info-card,
.feature-card,
.roadmap-card,
.closing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.panel-card {
  padding: 22px;
}

.panel-topline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.panel-card h2,
.section-heading h2,
.closing-card h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  line-height: 1.08;
}

.panel-card p {
  margin-top: 12px;
}

.metric-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.metric-list div {
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.metric-list dt {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.metric-list dd {
  margin: 6px 0 0;
  color: var(--text-secondary);
  line-height: 1.45;
}

.content-section {
  padding: 42px 0 0;
}

.alt-section {
  padding: 54px 0 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 20px;
}

.section-heading h2 {
  margin-bottom: 10px;
}

.card-grid {
  display: grid;
  gap: 16px;
}

.card-grid-two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card-grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.approach-layout {
  grid-template-columns: 320px minmax(0, 1fr);
  align-items: start;
}

.approach-summary {
  position: sticky;
  top: 24px;
  padding: 18px;
  border-left: 3px solid var(--action-primary);
}

.info-card,
.feature-card,
.roadmap-card {
  padding: 20px;
}

.info-card h3,
.feature-card h3,
.roadmap-card h3 {
  margin: 14px 0 10px;
  font-size: 1.1rem;
}

.icon-badge {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  font-weight: 700;
}

.icon-source {
  background: rgba(79, 138, 125, 0.14);
  color: var(--source);
}

.icon-link {
  background: var(--link-accent-soft);
  color: var(--link-accent);
}

.icon-media {
  background: var(--media-accent-soft);
  color: var(--media-accent);
}

.icon-reminder {
  background: var(--reminder-accent-soft);
  color: var(--reminder-accent);
}

.feature-list {
  padding-left: 18px;
}

.feature-list li + li {
  margin-top: 10px;
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.roadmap-label {
  color: var(--source);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.closing-card {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  padding: 22px;
}

.site-footer {
  padding: 36px 0 10px;
}

.site-footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 22px 18px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.site-footer-label {
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.site-footer-brand {
  color: var(--source);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.site-footer-brand:hover,
.site-footer-brand:focus-visible {
  text-decoration: underline;
}

@media (max-width: 960px) {
  .hero,
  .approach-layout,
  .closing-card,
  .card-grid-two,
  .card-grid-three,
  .roadmap-grid {
    grid-template-columns: 1fr;
  }

  .approach-summary {
    position: static;
  }

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

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 20px, 1180px);
    padding-top: 18px;
  }

  .hero {
    padding-top: 8px;
  }

  .panel-card,
  .info-card,
  .feature-card,
  .roadmap-card,
  .closing-card {
    padding: 18px;
  }

  .site-nav {
    width: 100%;
  }

  .site-nav a {
    flex: 1 1 auto;
    text-align: center;
  }
}