:root {
  --bg: #07111c;
  --bg-soft: #0d1827;
  --surface: rgba(13, 25, 39, 0.72);
  --surface-strong: rgba(10, 21, 34, 0.92);
  --line: rgba(118, 166, 204, 0.18);
  --line-strong: rgba(69, 226, 255, 0.2);
  --text: #edf4ff;
  --muted: #afbdd2;
  --cyan: #21e0ff;
  --cyan-soft: rgba(33, 224, 255, 0.12);
  --blue: #178dff;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.4);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  background:
    radial-gradient(circle at 10% 10%, rgba(33, 224, 255, 0.1), transparent 32%),
    radial-gradient(circle at 85% 18%, rgba(23, 141, 255, 0.12), transparent 24%),
    linear-gradient(180deg, #08121d 0%, #050c15 100%);
  color: var(--text);
  overflow-x: hidden;
}

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

.site-shell {
  position: relative;
  isolation: isolate;
}

.ambient {
  position: fixed;
  inset: auto;
  width: 36rem;
  height: 36rem;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.22;
  pointer-events: none;
  z-index: -2;
}

.ambient-one {
  top: -10rem;
  right: -8rem;
  background: rgba(33, 224, 255, 0.4);
}

.ambient-two {
  bottom: -14rem;
  left: -6rem;
  background: rgba(23, 141, 255, 0.28);
}

.grid-overlay {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(circle at center, black 48%, transparent 88%);
  opacity: 0.22;
  pointer-events: none;
  z-index: -1;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: rgba(6, 13, 21, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  gap: 0.9rem;
  align-items: center;
  text-decoration: none;
  color: var(--text);
}

.brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
}

.brand strong,
.hero h1,
.section-heading h2,
.closing h2,
.content-card h3,
.principle-card h3,
.manifesto-main h3,
.manifesto-side h3 {
  font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
}

.brand strong {
  display: block;
  letter-spacing: 0.08em;
  font-size: 0.98rem;
}

.brand span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.site-nav {
  display: flex;
  gap: 1.2rem;
  align-items: center;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.96rem;
  font-weight: 600;
  position: relative;
  transition: color 0.2s ease;
}

.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.45rem;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: center;
  background: linear-gradient(90deg, var(--cyan), transparent);
  transition: transform 0.25s ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--text);
}

.site-nav a:hover::after,
.site-nav a.active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  padding: 0;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.hero {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  align-items: center;
  gap: clamp(2rem, 4vw, 4rem);
  padding: 5.5rem 0 4rem;
}

.eyebrow,
.section-kicker,
.mini-label,
.timeline-step {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(33, 224, 255, 0.08);
  border: 1px solid rgba(33, 224, 255, 0.16);
  color: #9befff;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 1rem 0 0.8rem;
  font-size: clamp(3rem, 9vw, 5.6rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.hero-lead {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.14rem;
  line-height: 1.75;
}

.hero-cta,
.closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0.9rem 1.3rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.01em;
  transition: transform 0.2s ease, box-shadow 0.25s ease, border-color 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, var(--cyan), #0cb5ff);
  color: #041119;
  box-shadow: 0 12px 28px rgba(33, 224, 255, 0.22);
}

.button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.stat-card,
.glass-card,
.principle-card,
.content-card,
.timeline-item {
  background: linear-gradient(180deg, rgba(15, 30, 47, 0.88), rgba(10, 19, 30, 0.82));
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
}

.stat-card {
  padding: 1.1rem 1rem;
}

.stat-value {
  display: block;
  font-size: 1.8rem;
  font-weight: 900;
  color: #8df1ff;
}

.stat-label {
  display: block;
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.hero-visual {
  position: relative;
}

.hero-card {
  position: relative;
  padding: 1rem;
  border-radius: calc(var(--radius-lg) + 4px);
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-card::before,
.glass-card::before,
.content-card::before,
.principle-card::before,
.timeline-item::before,
.closing-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(130deg, rgba(33, 224, 255, 0.12), transparent 45%, rgba(255,255,255,0.04));
  pointer-events: none;
}

.hero-card img {
  border-radius: calc(var(--radius-lg) - 6px);
  width: 100%;
  object-fit: cover;
}

.floating-quote {
  position: absolute;
  left: -1rem;
  bottom: -1.6rem;
  width: min(80%, 330px);
  padding: 1rem 1.1rem;
  border-radius: 18px;
  background: rgba(8, 18, 30, 0.86);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.4);
}

.floating-quote span {
  color: #93dcf3;
  display: block;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.floating-quote strong {
  display: block;
  margin-top: 0.45rem;
  font-size: 1.02rem;
}

.intro-band {
  padding: 1.4rem 0 0.4rem;
}

.intro-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 2rem;
  align-items: end;
  padding: 2rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(11, 23, 36, 0.86), rgba(7, 14, 23, 0.82));
  border: 1px solid rgba(255,255,255,0.06);
}

.intro-grid h2,
.section-heading h2,
.closing h2 {
  margin: 0.7rem 0 0;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.intro-grid p,
.section-heading p,
.manifesto-main p,
.manifesto-side p,
.principle-card p,
.content-card p,
.timeline-item p,
.formula-quote p,
.closing-wrap p,
.site-footer p {
  color: var(--muted);
  line-height: 1.8;
}

.section {
  padding: 5.5rem 0 1rem;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 2rem;
}

.section-heading.split-heading {
  max-width: none;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 2rem;
  align-items: end;
}

.center-heading {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.manifesto-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.2rem;
}

.manifesto-main {
  padding: 2rem;
  min-height: 100%;
}

.manifesto-side {
  padding: 1.6rem;
}

.manifesto-grid > :nth-child(2),
.manifesto-grid > :nth-child(3) {
  min-height: 100%;
}

.manifesto-grid > :nth-child(2) {
  grid-column: 2;
}

.manifesto-grid > :nth-child(3) {
  grid-column: 2;
}

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

.principle-card,
.content-card {
  position: relative;
  padding: 1.5rem;
  overflow: hidden;
}

.principle-card span {
  display: inline-block;
  margin-bottom: 0.9rem;
  color: #8fefff;
  font-size: 0.95rem;
  font-weight: 800;
}

.principle-card h3,
.content-card h3,
.timeline-item h3,
.manifesto-main h3,
.manifesto-side h3 {
  margin: 0 0 0.8rem;
  font-size: 1.35rem;
}

.formula-section {
  padding: 5.5rem 0;
}

.formula-wrap {
  padding: 3.2rem 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.formula-board {
  position: relative;
  display: grid;
  grid-template-columns: repeat(9, auto);
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem;
  margin-top: 2.4rem;
}

.formula-item,
.formula-result {
  display: grid;
  justify-items: center;
  gap: 0.75rem;
}

.formula-icon {
  width: 90px;
  height: 90px;
  display: grid;
  place-items: center;
  border-radius: 24px;
  background: radial-gradient(circle at 30% 20%, rgba(33, 224, 255, 0.2), rgba(11, 20, 32, 0.96));
  border: 1px solid rgba(255,255,255,0.08);
  color: #8ef4ff;
  font-size: 1.75rem;
  font-weight: 900;
}

.formula-item span,
.formula-result span {
  color: var(--text);
  font-weight: 700;
  text-align: center;
}

.formula-plus {
  font-size: 2rem;
  font-weight: 800;
  color: #89eaff;
}

.equals {
  color: #d0efff;
}

.formula-result img {
  width: 84px;
  height: 84px;
  object-fit: contain;
  filter: drop-shadow(0 12px 22px rgba(33, 224, 255, 0.16));
}

.formula-quote {
  text-align: center;
  margin-top: 1.8rem;
}

.formula-quote p {
  margin: 0;
  font-size: 1.08rem;
}

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

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 1.1rem;
  height: 1px;
  background: linear-gradient(90deg, rgba(33,224,255,0.26), rgba(255,255,255,0.06));
  z-index: 0;
}

.timeline-item {
  position: relative;
  padding: 1.5rem;
  z-index: 1;
}

.timeline-step {
  margin-bottom: 1rem;
}

.content-card h3,
.principle-card h3,
.timeline-item h3,
.manifesto-main h3,
.manifesto-side h3 {
  letter-spacing: -0.03em;
}

.closing {
  padding: 5rem 0;
}

.closing-wrap {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr auto;
  gap: 2rem;
  align-items: center;
  padding: 2rem;
  overflow: hidden;
}

.site-footer {
  padding: 1.6rem 0 2.8rem;
}

.footer-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem 2rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-wrap strong {
  display: block;
  margin-bottom: 0.35rem;
  letter-spacing: 0.08em;
}

.site-footer span {
  color: var(--muted);
  align-self: end;
}

.reveal,
.reveal-mini {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible,
.reveal-mini.visible {
  opacity: 1;
  transform: translateY(0);
}

.card-tilt {
  transform-style: preserve-3d;
  transition: transform 0.22s ease;
}

@media (max-width: 1100px) {
  .hero,
  .intro-grid,
  .section-heading.split-heading,
  .closing-wrap {
    grid-template-columns: 1fr;
  }

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

  .manifesto-grid > :nth-child(2),
  .manifesto-grid > :nth-child(3) {
    grid-column: auto;
  }

  .principles-grid,
  .content-grid,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .formula-board {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    justify-items: center;
  }

  .formula-plus {
    display: none;
  }

  .formula-result {
    grid-column: 2;
  }
}

@media (max-width: 760px) {
  .site-nav {
    position: absolute;
    top: calc(100% + 0.8rem);
    right: 1rem;
    left: 1rem;
    display: grid;
    gap: 0.25rem;
    padding: 0.8rem;
    border-radius: 18px;
    background: rgba(7, 14, 23, 0.96);
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

  .site-header.menu-open .site-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-toggle {
    display: inline-block;
  }

  .site-header.menu-open .nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .site-header.menu-open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .site-header.menu-open .nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero {
    padding-top: 4rem;
  }

  .hero-stats,
  .principles-grid,
  .content-grid,
  .timeline,
  .formula-board {
    grid-template-columns: 1fr;
  }

  .formula-result {
    grid-column: auto;
  }

  .floating-quote {
    position: static;
    width: 100%;
    margin-top: 1rem;
  }

  .intro-grid,
  .stat-card,
  .principle-card,
  .content-card,
  .timeline-item,
  .closing-wrap,
  .glass-card {
    padding-inline: 1.2rem;
  }

  .intro-grid,
  .closing-wrap {
    padding-block: 1.4rem;
  }

  .footer-wrap {
    flex-direction: column;
  }
}