:root {
  --bg: #07070d;
  --bg-elevated: #0f0f18;
  --text: #f4f4f8;
  --muted: #9ca3b8;
  --blue: #2563eb;
  --purple: #9333ea;
  --coral: #f97316;
  --gradient: linear-gradient(120deg, var(--blue) 0%, var(--purple) 48%, var(--coral) 100%);
  --gradient-soft: linear-gradient(135deg, rgba(37, 99, 235, 0.35), rgba(147, 51, 234, 0.25), rgba(249, 115, 22, 0.2));
  --radius: 16px;
  --header-h: 72px;
  --font: "Instrument Sans", system-ui, sans-serif;
  --display: "Syne", var(--font);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

#aurora {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

body.logo-intro-active {
  overflow: hidden;
}

body.logo-intro-active .site-header,
body.logo-intro-active main,
body.logo-intro-active .site-footer {
  visibility: hidden;
}

.logo-intro {
  position: fixed;
  inset: 0;
  z-index: 100;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: #07070d;
}

.logo-intro__video {
  position: fixed;
  inset: 0;
  display: block;
  width: 100vw;
  height: 100vh;
  max-width: none;
  object-fit: cover;
  z-index: 0;
}

.logo-intro canvas {
  position: fixed;
  inset: 0;
  display: block;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
}

.logo-intro--out {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.65s ease;
}

.logo-intro__skip,
.logo-intro__sound {
  position: absolute;
  bottom: 1.5rem;
  z-index: 2;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(7, 7, 13, 0.65);
  color: var(--text);
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  backdrop-filter: blur(8px);
}

.logo-intro__skip {
  right: 1.25rem;
}

.logo-intro__sound {
  left: 50%;
  transform: translateX(-50%);
}

.hero__visual--logo {
  flex-direction: column;
  gap: 0.75rem;
}

#hero-logo-canvas {
  width: min(420px, 92vw);
  height: min(140px, 28vw);
  display: block;
}

.hero__visual-tag {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #a78bfa;
  text-align: center;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 2;
}

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

.site-header {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem clamp(1.25rem, 4vw, 3rem);
  height: var(--header-h);
  backdrop-filter: blur(14px);
  background: rgba(7, 7, 13, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.brand__pc {
  display: grid;
  place-items: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 0.35rem;
  border-radius: 8px;
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #fff;
  background: var(--gradient);
  box-shadow: 0 0 20px rgba(147, 51, 234, 0.45);
}

.brand__logo {
  display: block;
  height: 42px;
  width: auto;
  filter: drop-shadow(0 0 24px rgba(147, 51, 234, 0.35));
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-size: 0.95rem;
  color: var(--muted);
}

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

.nav__cta {
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: var(--gradient);
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 8px 32px rgba(37, 99, 235, 0.35);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  min-height: calc(100vh - var(--header-h));
  padding: clamp(2rem, 6vw, 5rem) clamp(1.25rem, 4vw, 3rem);
  max-width: 1200px;
  margin: 0 auto;
}

.eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--purple);
  font-weight: 600;
  margin: 0 0 1rem;
}

.eyebrow--light {
  color: rgba(255, 255, 255, 0.75);
}

.hero__title {
  font-family: var(--display);
  font-size: clamp(2.4rem, 5.5vw, 4.25rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 1.25rem;
}

.hero__line {
  display: block;
}

.hero__line--gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  max-width: 34rem;
  color: var(--muted);
  margin: 0 0 2rem;
  font-size: 1.15rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.35rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.btn--primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 12px 40px rgba(147, 51, 234, 0.4);
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.btn--lg {
  padding: 0.9rem 1.6rem;
}

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

.hero__stats dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.hero__stats dd {
  margin: 0.25rem 0 0;
  font-weight: 600;
  font-size: 0.95rem;
}

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.orbit {
  position: relative;
  width: min(380px, 80vw);
  aspect-ratio: 1;
}

.orbit__ring {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  animation: spin 28s linear infinite;
}

.orbit__ring::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent, var(--blue), var(--purple), var(--coral), transparent);
  mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1px));
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1px));
  opacity: 0.85;
}

.orbit__core {
  position: absolute;
  inset: 32%;
  border-radius: 50%;
  background: var(--gradient-soft);
  box-shadow:
    0 0 60px rgba(37, 99, 235, 0.45),
    inset 0 0 40px rgba(255, 255, 255, 0.08);
  animation: pulse 4s ease-in-out infinite;
}

.orbit__tags {
  list-style: none;
  margin: 0;
  padding: 0;
  position: absolute;
  inset: 0;
}

.orbit__tags li {
  position: absolute;
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 999px;
  background: rgba(15, 15, 24, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  white-space: nowrap;
}

.orbit__tags li:nth-child(1) { top: 6%; left: 50%; transform: translateX(-50%); }
.orbit__tags li:nth-child(2) { top: 28%; right: 0; }
.orbit__tags li:nth-child(3) { bottom: 28%; right: 4%; }
.orbit__tags li:nth-child(4) { bottom: 8%; left: 50%; transform: translateX(-50%); }
.orbit__tags li:nth-child(5) { top: 32%; left: 0; }

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

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.06); opacity: 0.92; }
}

.section {
  padding: clamp(3.5rem, 8vw, 6rem) clamp(1.25rem, 4vw, 3rem);
  max-width: 1200px;
  margin: 0 auto;
}

.section--alt {
  position: relative;
  isolation: isolate;
}

.section--alt::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  background: linear-gradient(180deg, transparent, rgba(15, 15, 24, 0.6) 20%, transparent);
  pointer-events: none;
}

.section__head h2 {
  font-family: var(--display);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  margin: 0;
  letter-spacing: -0.02em;
}

.cards {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.cards--3 {
  grid-template-columns: repeat(3, 1fr);
}

.card {
  display: flex;
  flex-direction: column;
  padding: 1.75rem;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.card:hover {
  border-color: rgba(147, 51, 234, 0.45);
  transform: translateY(-4px);
}

.card--featured {
  background: linear-gradient(145deg, rgba(37, 99, 235, 0.12), rgba(15, 15, 24, 0.95));
}

.card__logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  height: 4.75rem;
  margin-bottom: 1.15rem;
}

.card__logo-wrap--light {
  padding: 0.45rem 0.75rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
}

.card__logo {
  display: block;
  width: auto;
  height: auto;
  max-width: 10.5rem;
  max-height: 3rem;
  object-fit: contain;
  object-position: center;
}

.card__copy {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.card__link {
  margin-top: auto;
  padding-top: 0.25rem;
  font-weight: 600;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.card__badge {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--coral);
  margin-bottom: 0.75rem;
}

.card h3 {
  margin: 0 0 0.75rem;
  font-family: var(--display);
  font-size: 1.35rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  flex: 1;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  list-style: none;
  margin: 2.5rem 0 0;
  padding: 0;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.service-grid li {
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(7, 7, 13, 0.5);
}

.service-grid__icon {
  display: block;
  font-family: var(--display);
  font-size: 1.5rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.75rem;
}

.service-grid h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.service-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.timeline {
  list-style: none;
  margin: 2.5rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  gap: 1rem;
  align-items: stretch;
  counter-reset: step;
}

.timeline li {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 10.5rem;
  padding: 1.5rem 1.25rem 1.35rem;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.timeline li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: block;
  flex-shrink: 0;
  font-size: 0.75rem;
  color: var(--purple);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.timeline strong {
  display: block;
  flex-shrink: 0;
  min-height: 2.85rem;
  font-family: var(--display);
  font-size: 1.08rem;
  line-height: 1.25;
  margin-bottom: 0.5rem;
}

.timeline span {
  flex: 1;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.section--cta {
  padding-bottom: 5rem;
}

.cta-panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: clamp(2rem, 5vw, 3rem);
  border-radius: calc(var(--radius) + 8px);
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 24px 80px rgba(37, 99, 235, 0.35);
}

.cta-panel h2 {
  font-family: var(--display);
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

.cta-panel p {
  margin: 0;
  max-width: 28rem;
  opacity: 0.92;
}

.cta-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.cta-panel .btn--primary {
  background: #fff;
  color: #1e1b4b;
  box-shadow: none;
}

.cta-panel .btn--ghost {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
  background: transparent;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 2rem clamp(1.25rem, 4vw, 3rem) 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer__muted {
  opacity: 0.7;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 2rem;
  }

  .hero__visual {
    order: -1;
  }

  .orbit {
    width: min(280px, 70vw);
  }

  .cards--3,
  .service-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 1rem 1.25rem 1.5rem;
    background: rgba(7, 7, 13, 0.96);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav.is-open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .orbit__ring,
  .orbit__core {
    animation: none;
  }
}