:root {
  --bg: #0c1117;
  --surface: rgba(18, 26, 35, 0.92);
  --surface-strong: #151d28;
  --surface-tint: #131e2a;
  --text: #e8ecf1;
  --muted: #8b95a5;
  --line: rgba(200, 215, 235, 0.12);
  --accent: #38bdf8;
  --accent-dark: #0ea5e9;
  --accent-soft: rgba(56, 189, 248, 0.1);
  --warm: #f59e0b;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.25);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 999px;
  --container: 1180px;
}

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

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.06), transparent 30%),
    radial-gradient(circle at bottom right, rgba(245, 158, 11, 0.04), transparent 30%),
    linear-gradient(180deg, #0c1117 0%, #0f1620 50%, #0c1117 100%);
  min-height: 100vh;
}

img {
  max-width: 100%;
}

.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;
}

a {
  color: inherit;
  text-decoration: none;
}

p {
  margin: 0;
  line-height: 1.65;
  color: var(--muted);
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--text);
  line-height: 1.1;
}

h1,
h2 {
  font-family: "DM Serif Display", serif;
  font-weight: 400;
  letter-spacing: -0.02em;
}

ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.site-shell {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
  padding: 1rem 0 2rem;
}

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

.site-header {
  position: sticky;
  top: 1rem;
  z-index: 40;
  padding: 1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(12, 17, 23, 0.82);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.brand-mark {
  display: block;
  width: 2.2rem;
  height: 2.2rem;
  flex-shrink: 0;
}

.site-nav,
.nav-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.92rem;
}

.site-nav a {
  color: var(--muted);
}

.site-nav a.button {
  color: #0c1117;
}

.site-nav a:not(.button).active,
.site-nav a:not(.button):hover,
.footer-links a:hover,
.text-link:hover {
  color: var(--text);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: transparent;
  padding: 0.7rem 1rem;
  font: inherit;
  color: var(--text);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #0c1117;
  padding: 0.95rem 1.4rem;
  font-weight: 600;
  box-shadow: 0 12px 26px rgba(56, 189, 248, 0.15);
}

.button:hover {
  background: var(--accent-dark);
}

.button-small {
  padding: 0.8rem 1.1rem;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border: 1px solid var(--line);
  box-shadow: none;
}

.button-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.hero,
.section,
.page-hero,
.timeline-layout,
.mission-layout,
.contact-grid {
  margin-top: 2.5rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
  min-height: calc(100vh - 9rem);
  padding: 2rem 0 1rem;
}

.eyebrow {
  margin-bottom: 1rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
}

.hero h1,
.page-hero h1 {
  font-size: clamp(3rem, 6vw, 5.2rem);
  max-width: 14ch;
}

.hero-text,
.page-hero p {
  font-size: 1.12rem;
  max-width: 56ch;
}

.markdown-content > * + * {
  margin-top: 1.25rem;
}

.markdown-content h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  margin-bottom: 0.75rem;
}

.markdown-content h3 {
  font-size: 1.15rem;
  margin-bottom: 0.55rem;
}

.markdown-content a {
  color: var(--accent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 1.8rem 0;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  padding: 0;
  list-style: none;
  font-size: 0.95rem;
}

.hero-points li::before {
  content: "\2022";
  margin-right: 0.45rem;
  color: var(--warm);
}

.card-panel,
.info-card,
.feature-card,
.contact-card,
.timeline-step,
.step-card {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero-visual {
  padding: 2rem;
  background:
    linear-gradient(135deg, rgba(56, 189, 248, 0.06), rgba(245, 158, 11, 0.04)),
    var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
}

.hero-visual .stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat-card {
  padding: 1.2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--surface-strong);
}

.stat-card .stat-value {
  display: block;
  font-size: 2rem;
  font-family: "DM Serif Display", serif;
  color: var(--accent);
  margin-bottom: 0.3rem;
}

.stat-card .stat-label {
  font-size: 0.85rem;
  color: var(--muted);
}

.flow-diagram {
  margin-top: 1.2rem;
  padding: 1.2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--surface-strong);
}

.flow-diagram .flow-steps {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.flow-step {
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--accent-soft);
  color: var(--accent);
}

.flow-arrow {
  color: var(--muted);
  font-size: 0.85rem;
}

.section {
  padding: 4rem 0;
}

.problem-list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  max-width: 48rem;
}

.problem-item {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.problem-item:first-child {
  border-top: 1px solid var(--line);
}

.problem-list dt {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
}

.problem-list dd {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 2rem;
  align-items: start;
}

.section-heading-sticky {
  position: sticky;
  top: 6.5rem;
}

.section-tinted {
  padding: 4rem 2rem;
  border-radius: calc(var(--radius-lg) + 8px);
  background: linear-gradient(180deg, rgba(56, 189, 248, 0.04), rgba(18, 26, 35, 0.6));
  border: 1px solid var(--line);
}

.section-heading {
  max-width: 48rem;
  margin-bottom: 2rem;
}

.section-heading h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  margin-bottom: 0.8rem;
}

.card-grid,
.steps,
.contact-grid,
.mission-layout {
  display: grid;
  gap: 1.2rem;
}

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

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

.info-card,
.feature-card,
.contact-card {
  padding: 1.6rem;
}

.feature-card {
  border-left: 3px solid var(--accent);
}

.info-card h3,
.feature-card h3,
.contact-card h2 {
  margin-bottom: 0.65rem;
  font-size: 1.15rem;
}

.steps {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.step-card {
  padding: 1.5rem;
}

.step-number {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.pillar-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.pillar-card {
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  text-align: center;
}

.pillar-card .pillar-icon {
  display: block;
  font-size: 2rem;
  margin-bottom: 0.8rem;
}

.pillar-card h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.pillar-card p {
  font-size: 0.9rem;
}

.proof-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.proof-badge {
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(56, 189, 248, 0.15);
}

.accordion {
  display: grid;
  gap: 0.9rem;
}

.accordion details {
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.accordion summary {
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text);
}

.accordion summary::after {
  content: "+";
  flex-shrink: 0;
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--muted);
  transition: transform 0.2s ease;
}

.accordion details[open] summary::after {
  content: "\2212";
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion p {
  margin-top: 0.75rem;
}

.text-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--accent);
  font-weight: 600;
}

.cta-section {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  padding: 2.5rem;
  border-radius: calc(var(--radius-lg) + 8px);
  background:
    radial-gradient(circle at top right, rgba(56, 189, 248, 0.1), transparent 30%),
    radial-gradient(circle at bottom left, rgba(245, 158, 11, 0.06), transparent 28%),
    var(--surface);
  border: 1px solid var(--line);
  overflow: hidden;
  position: relative;
}

.cta-copy {
  position: relative;
  z-index: 1;
}

.cta-copy h2 {
  margin-bottom: 0.9rem;
}

.cta-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.4rem;
}

.cta-points span {
  padding: 0.5rem 0.8rem;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid var(--line);
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 600;
}

.contact-form {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
  border: 1px solid var(--line);
}

.contact-form.is-submitted {
  border-color: rgba(56, 189, 248, 0.28);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.08);
}

.contact-form.has-error {
  border-color: rgba(239, 68, 68, 0.3);
}

.contact-form label {
  display: grid;
  gap: 0.45rem;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg);
  font: inherit;
  color: var(--text);
}

.contact-form textarea {
  min-height: 6rem;
  resize: vertical;
}

.form-success {
  display: none;
  padding: 0.95rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(56, 189, 248, 0.2);
  background: rgba(56, 189, 248, 0.06);
  color: var(--accent);
  font-weight: 600;
  line-height: 1.5;
}

.contact-form.is-submitted .form-success,
.contact-form.has-error .form-success {
  display: block;
}

.contact-form.has-error .form-success {
  border-color: rgba(239, 68, 68, 0.22);
  background: rgba(239, 68, 68, 0.06);
  color: #f87171;
}

.contact-form.is-submitted label,
.contact-form.is-submitted textarea,
.contact-form.is-submitted select {
  display: none;
}

.contact-form.is-submitted .button {
  background: var(--accent);
  box-shadow: none;
  cursor: default;
  opacity: 1;
}

.contact-grid {
  grid-template-columns: minmax(0, 44rem);
}

.contact-card {
  padding: 2rem;
  background: var(--surface);
}

.contact-card p {
  max-width: 32rem;
}

.contact-card a {
  color: var(--accent);
  font-weight: 700;
}

.contact-card a.button {
  color: #0c1117;
}

.inner-page {
  padding: 2rem 0 3rem;
}

.page-hero {
  max-width: 50rem;
  padding: 3rem 0 1rem;
}

.timeline-layout {
  display: grid;
  gap: 1rem;
}

.timeline-step {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 1rem;
  padding: 1.4rem;
}

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

.mission-copy {
  padding: 1.75rem;
  background: var(--surface);
}

.mission-copy h2 {
  margin-bottom: 0.9rem;
}

.mission-copy p + p {
  margin-top: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 1rem;
  font-size: 0.92rem;
}

.footer-links a {
  color: var(--muted);
}

.site-footer {
  margin-top: 2rem;
  padding: 2rem 0;
  border-top: 1px solid var(--line);
  align-items: flex-start;
}

.footer-brand {
  margin-bottom: 0.7rem;
}

.footer-note {
  margin-top: 0.5rem;
  font-size: 0.85rem;
}

.segment-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.segment-card {
  padding: 1.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.segment-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
  color: var(--accent);
}

.segment-card p {
  margin-bottom: 0.8rem;
}

.segment-card ul {
  font-size: 0.92rem;
}

@media (max-width: 960px) {
  .hero,
  .cta-section,
  .split-section,
  .three-up,
  .feature-grid,
  .steps,
  .mission-layout,
  .segment-cards,
  .pillar-cards {
    grid-template-columns: 1fr;
  }

  .two-up {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 1rem;
  }

  .section-heading-sticky {
    position: static;
  }

  .hero-visual .stat-grid {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .problem-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

@media (max-width: 760px) {
  .site-shell {
    width: min(calc(100% - 1.1rem), var(--container));
  }

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

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav {
    width: 100%;
    border-top: 1px solid var(--line);
    display: grid;
    grid-template-rows: 0fr;
    overflow: hidden;
    visibility: hidden;
    pointer-events: none;
    transition:
      grid-template-rows 0.25s ease,
      visibility 0s linear 0.25s;
  }

  .nav-inner {
    min-height: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0;
    overflow: hidden;
  }

  .nav-inner > * {
    opacity: 0;
    transition: opacity 0.15s ease;
  }

  .site-nav.is-open {
    grid-template-rows: 1fr;
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
  }

  .site-nav.is-open .nav-inner {
    padding: 0.75rem 0;
  }

  .site-nav.is-open .nav-inner > * {
    opacity: 1;
    transition: opacity 0.2s 0.1s ease;
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .section,
  .section-tinted {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .section {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }

  .timeline-step {
    grid-template-columns: 1fr;
  }

  .hero-visual .stat-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
  }
}