:root {
  --ink: #07131f;
  --ink-2: #0f1c2c;
  --ink-3: #1a2d42;
  --paper: #eef3f7;
  --snow: #f7fafc;
  --signal: #0f9f8f;
  --signal-deep: #0a7368;
  --flare: #ff6b3d;
  --mute: #5d6e80;
  --line: #d0dae4;
  --glow: rgba(15, 159, 143, 0.35);
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --max: 1120px;
  --radius: 14px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--snow);
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font: inherit;
}

.wrap {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

/* Nav */
.top {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(7, 19, 31, 0.84);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.15rem;
}

.brand span {
  color: var(--signal);
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.nav a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  text-decoration: none;
}

.nav-cta {
  margin-left: 0.35rem;
}

.menu-btn {
  display: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: #fff;
  border-radius: 10px;
  padding: 0.45rem 0.7rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: 999px;
  padding: 0.8rem 1.25rem;
  font-weight: 700;
  font-size: 0.9375rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s, border-color 0.2s, color 0.2s;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-flare {
  background: var(--flare);
  color: #fff;
}

.btn-flare:hover {
  background: #ff814f;
}

.btn-signal {
  background: var(--signal);
  color: #fff;
}

.btn-signal:hover {
  background: var(--signal-deep);
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.28);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}

.btn-ink {
  background: var(--ink);
  color: #fff;
}

.btn-line {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(ellipse 80% 60% at 85% 20%, rgba(15, 159, 143, 0.28), transparent 55%),
    radial-gradient(ellipse 50% 45% at 10% 90%, rgba(255, 107, 61, 0.18), transparent 50%),
    linear-gradient(160deg, #07131f 0%, #0f2438 48%, #0a1a28 100%);
  min-height: min(92vh, 820px);
  display: flex;
  align-items: flex-end;
  padding: 5.5rem 0 4.5rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse at 70% 40%, #000 20%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  gap: 2.5rem;
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.hero-copy h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 750;
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
  max-width: 11ch;
}

.hero-copy p {
  margin: 0 0 1.75rem;
  max-width: 34rem;
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.78);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-visual {
  position: relative;
  min-height: 220px;
}

.orbit {
  width: min(100%, 420px);
  margin-left: auto;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: grid;
  place-items: center;
  position: relative;
  animation: spin-slow 28s linear infinite;
}

.orbit-core {
  width: 58%;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.18), transparent 45%),
    linear-gradient(145deg, var(--signal), #0b5f56);
  box-shadow: 0 0 60px var(--glow);
  animation: spin-slow 28s linear infinite reverse;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.04em;
}

.orbit-dot {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--flare);
  box-shadow: 0 0 18px rgba(255, 107, 61, 0.7);
}

.orbit-dot:nth-child(1) { top: 8%; left: 48%; }
.orbit-dot:nth-child(2) { top: 48%; right: 6%; background: #fff; }
.orbit-dot:nth-child(3) { bottom: 10%; left: 22%; background: var(--signal); }

@keyframes spin-slow {
  to { transform: rotate(360deg); }
}

/* Sections */
.section {
  padding: 5rem 0;
}

.section-ink {
  background: var(--ink);
  color: #fff;
}

.section-paper {
  background: var(--paper);
}

.section-head {
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

.section-head h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.section-head p {
  margin: 0;
  color: var(--mute);
  font-size: 1.05rem;
}

.section-ink .section-head p {
  color: rgba(255, 255, 255, 0.68);
}

/* Feature rail */
.rail {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.rail a,
.rail-item {
  display: grid;
  grid-template-columns: 7rem 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s var(--ease), padding 0.2s var(--ease);
}

.rail a:hover {
  background: rgba(15, 159, 143, 0.06);
  padding-left: 0.5rem;
  text-decoration: none;
}

.rail-kicker {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--signal);
  letter-spacing: -0.03em;
}

.rail strong {
  display: block;
  font-size: 1.125rem;
  margin-bottom: 0.2rem;
}

.rail span {
  color: var(--mute);
  font-size: 0.9375rem;
}

.rail-arrow {
  color: var(--signal);
  font-size: 1.25rem;
}

/* Split */
.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
}

.split-rev {
  grid-template-columns: 0.95fr 1.05fr;
}

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: 0 18px 40px rgba(7, 19, 31, 0.05);
}

.panel-dark {
  background: var(--ink-2);
  border-color: rgba(255, 255, 255, 0.08);
  color: #fff;
  box-shadow: none;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.metric {
  padding: 1rem;
  border-radius: 12px;
  background: rgba(15, 159, 143, 0.1);
}

.metric b {
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: -0.04em;
}

.metric small {
  color: var(--mute);
}

.panel-dark .metric {
  background: rgba(255, 255, 255, 0.05);
}

.panel-dark .metric small {
  color: rgba(255, 255, 255, 0.55);
}

/* Checklist */
.check {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.check li {
  display: grid;
  grid-template-columns: 1.1rem 1fr;
  gap: 0.7rem;
  align-items: start;
}

.check li::before {
  content: "";
  width: 0.7rem;
  height: 0.7rem;
  margin-top: 0.4rem;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(15, 159, 143, 0.15);
}

/* Page hero (inner) */
.page-hero {
  padding: 4.5rem 0 3rem;
  background:
    linear-gradient(180deg, #0b1a28 0%, #102536 100%);
  color: #fff;
}

.page-hero h1 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  letter-spacing: -0.04em;
  line-height: 1.02;
  max-width: 14ch;
}

.page-hero p {
  margin: 0;
  max-width: 36rem;
  color: rgba(255, 255, 255, 0.74);
  font-size: 1.0625rem;
}

/* Mosaic */
.mosaic {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
}

.tile {
  grid-column: span 4;
  padding: 1.4rem;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  min-height: 170px;
}

.tile-wide {
  grid-column: span 8;
}

.tile-tall {
  min-height: 220px;
}

.tile h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

.tile p {
  margin: 0;
  color: var(--mute);
  font-size: 0.95rem;
}

.tile-signal {
  background: linear-gradient(145deg, #0f9f8f, #0a7368);
  color: #fff;
  border: none;
}

.tile-signal p {
  color: rgba(255, 255, 255, 0.82);
}

.tile-ink {
  background: var(--ink);
  color: #fff;
  border: none;
}

.tile-ink p {
  color: rgba(255, 255, 255, 0.72);
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  counter-reset: step;
}

.step {
  position: relative;
  padding: 1.5rem 1.25rem 1.25rem;
  border-top: 2px solid var(--signal);
}

.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--signal);
  margin-bottom: 0.75rem;
  letter-spacing: -0.03em;
}

.step h3 {
  margin: 0 0 0.45rem;
  font-size: 1.125rem;
}

.step p {
  margin: 0;
  color: var(--mute);
  font-size: 0.95rem;
}

/* CTA band */
.cta-band {
  padding: 4.5rem 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(255, 107, 61, 0.22), transparent 45%),
    radial-gradient(ellipse at 90% 100%, rgba(15, 159, 143, 0.25), transparent 40%),
    var(--ink);
  color: #fff;
  text-align: center;
}

.cta-band h2 {
  margin: 0 auto 0.85rem;
  max-width: 16ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.cta-band p {
  margin: 0 auto 1.5rem;
  max-width: 34rem;
  color: rgba(255, 255, 255, 0.72);
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Footer */
.foot {
  background: #050d16;
  color: rgba(255, 255, 255, 0.65);
  padding: 2.5rem 0;
  font-size: 0.875rem;
}

.foot-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}

.foot a {
  color: #fff;
}

.foot nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .orbit,
  .orbit-core {
    animation: none;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Responsive */
@media (max-width: 920px) {
  .hero-grid,
  .split,
  .split-rev {
    grid-template-columns: 1fr;
  }
  .orbit {
    margin: 0 auto;
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .tile,
  .tile-wide {
    grid-column: span 12;
  }
  .rail a,
  .rail-item {
    grid-template-columns: 4.5rem 1fr;
  }
  .rail-arrow {
    display: none;
  }
}

@media (max-width: 780px) {
  .menu-btn {
    display: inline-flex;
  }
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem;
    background: rgba(7, 19, 31, 0.97);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .nav.open {
    display: flex;
  }
  .nav-cta {
    margin: 0.35rem 0 0;
  }
  .metric-row {
    grid-template-columns: 1fr;
  }
}