:root {
  --bg: #030712;
  --surface: #0f172a;
  --labs: #00d2ff;
  --official: #4f46e5;
  --purple: #a855f7;
  --text: #94a3b8;
  --white: #f8fafc;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--white);
  overflow-x: hidden;
  word-break: keep-all;
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #030712; }
::-webkit-scrollbar-thumb { background: #1e293b; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #00d2ff; }

.text-gradient-labs {
  background: linear-gradient(to right, #00d2ff, #ffffff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.text-gradient-official {
  background: linear-gradient(to right, #60a5fa, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.glow-labs { filter: drop-shadow(0 0 15px rgba(0, 210, 255, 0.5)); }
.glow-official { filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.6)); }
.text-white { color: #fff; }
.font-medium { font-weight: 500; }

#particle-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  opacity: 0.4;
  pointer-events: none;
}

.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  z-index: -1;
  opacity: 0.15;
  animation: orbFloat 12s infinite alternate ease-in-out;
  pointer-events: none;
}
.orb-left {
  width: 500px;
  height: 500px;
  top: -100px;
  left: -200px;
  background: var(--labs);
}
.orb-right {
  width: 600px;
  height: 600px;
  top: 40%;
  right: -200px;
  opacity: 0.1;
  background: var(--purple);
  animation-delay: -6s;
}

.container {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  padding: 16px 0;
  border-bottom: 1px solid transparent;
  transition: all 0.5s ease;
}
.navbar.scrolled {
  background: rgba(3, 7, 18, 0.9);
  backdrop-filter: blur(16px);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.logo-rotating { transition: transform 0.7s ease; }
.brand:hover .logo-rotating { transform: rotate(90deg); }
.brand-text {
  font-family: Orbitron, 'Segoe UI', sans-serif;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.2em;
  color: #fff;
}
.brand-text .dot { color: var(--labs); }

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: #9ca3af;
  font-size: 14px;
  font-weight: 500;
}
.desktop-nav > a {
  color: #9ca3af;
  text-decoration: none;
  transition: color 0.25s ease;
}
.desktop-nav > a:hover { color: #fff; }

.pill-btn {
  position: relative;
  padding: 10px 24px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  text-decoration: none;
  transition: all 0.3s ease;
}
.contact-btn:hover {
  border-color: rgba(0, 210, 255, 0.5);
  box-shadow: 0 0 16px rgba(0, 210, 255, 0.15) inset;
}
.row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
}

.lang-btn {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: #fff;
  border-radius: 999px;
  padding: 6px 12px;
  font-family: Orbitron, 'Segoe UI', sans-serif;
  font-size: 13px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.lang-btn:hover { color: var(--labs); }

.mobile-nav-actions { display: none; align-items: center; gap: 12px; }
.menu-btn {
  border: none;
  background: transparent;
  color: #fff;
  cursor: pointer;
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(3, 7, 18, 0.95);
  backdrop-filter: blur(18px);
  border-left: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  transform: translateX(100%);
  transition: transform 0.5s ease;
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu a {
  color: #d1d5db;
  text-decoration: none;
  font-size: 22px;
  font-weight: 500;
}
.mobile-menu a:hover { color: #fff; }
.mobile-contact {
  margin-top: 10px;
  border-radius: 999px;
  padding: 12px 30px;
  color: #020617 !important;
  background: var(--labs);
  font-weight: 700;
}
.mobile-close {
  position: absolute;
  top: 24px;
  right: 24px;
  border: none;
  background: transparent;
  color: #fff;
  cursor: pointer;
}

.section-center {
  min-height: 100vh;
  padding: 110px 24px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
}
.hero-logo-wrap {
  position: relative;
  width: 224px;
  height: 224px;
  margin-bottom: 40px;
}
.hero-logo-glow {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--labs);
  filter: blur(80px);
  opacity: 0.2;
}
.hero-logo {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-body {
  max-width: 900px;
}
.hero-badge {
  display: inline-block;
  margin-bottom: 16px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  font-size: 14px;
  letter-spacing: 0.14em;
  color: #d1d5db;
}
.hero h1 {
  margin: 0;
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.hero p {
  margin: 24px auto 46px;
  max-width: 760px;
  color: var(--text);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.7;
  font-weight: 300;
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}
.btn-primary,
.btn-secondary {
  text-decoration: none;
  border-radius: 6px;
  padding: 16px 34px;
  font-size: 16px;
  line-height: 1;
}
.btn-primary {
  background: #fff;
  color: #000;
  font-weight: 700;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.btn-primary:hover { background: #e5e7eb; }
.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-weight: 500;
}
.btn-secondary:hover { background: rgba(255, 255, 255, 0.06); }

.scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0.5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.scroll-hint span {
  font-family: Orbitron, 'Segoe UI', sans-serif;
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}
.scroll-hint div {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, #fff, transparent);
}

.section {
  padding: 112px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
  z-index: 10;
}
.section-about { background: rgba(15, 23, 42, 0.3); }
.section-head {
  text-align: center;
  margin-bottom: 72px;
}
.section-head h2 {
  margin: 0 0 24px;
  font-size: clamp(34px, 5vw, 58px);
}
.section-head p {
  margin: 0;
  color: var(--text);
  font-size: 20px;
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 56px;
  align-items: stretch;
}

.premium-glass {
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 24px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.premium-glass:hover {
  border-color: rgba(0, 210, 255, 0.3);
  background: rgba(15, 23, 42, 0.8);
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 210, 255, 0.05) inset;
}
.card {
  padding: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.logo-holder {
  width: 128px;
  height: 128px;
  margin-bottom: 28px;
  position: relative;
}
.logo-holder .logo-glow {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  filter: blur(50px);
  opacity: 0.3;
}
.logo-holder svg {
  position: relative;
  width: 100%;
  height: 100%;
}
.logo-holder.official .logo-glow { background: var(--official); }
.logo-holder.labs .logo-glow { background: var(--labs); }
.card h3 {
  margin: 0 0 8px;
  font-family: Orbitron, 'Segoe UI', sans-serif;
  font-size: 30px;
  letter-spacing: 0.1em;
}
.card h4 {
  margin: 0 0 16px;
  font-size: 30px;
  font-weight: 700;
}
.card p {
  margin: 0;
  color: var(--text);
  line-height: 1.8;
  font-size: 18px;
}
.visit-btn {
  margin-top: 28px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 999px;
  border: 1px solid rgba(99, 102, 241, 0.3);
  background: rgba(99, 102, 241, 0.1);
  color: #8fa2ff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  transition: all 0.25s ease;
}
.visit-btn:hover {
  background: var(--official);
  color: #fff;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

.section-partnership {
  background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI0MCIgaGVpZ2h0PSI0MCI+PHBhdGggZD0iTTAgMjBMNDAgMjAiIHN0cm9rZT0icmdiYSgyNTUsMjU1LDI1NSwwLjAyKSIgc3Ryb2tlLXdpZHRoPSIxIi8+PC9zdmc+");
}
.narrow {
  max-width: 960px;
  text-align: center;
}
.round-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid rgba(0, 210, 255, 0.3);
  background: rgba(0, 210, 255, 0.1);
  color: var(--labs);
}
.section-partnership h2 {
  margin: 0 0 30px;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.2;
}
.section-partnership > .container > p {
  margin: 0 auto 48px;
  color: var(--text);
  font-size: 19px;
  line-height: 1.8;
  max-width: 820px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 46px;
  text-align: left;
}
.feature-box {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.05);
}
.feature-box h4 {
  margin: 0 0 10px;
  font-size: 20px;
}
.feature-box p {
  margin: 0;
  color: #9ca3af;
  font-size: 15px;
  line-height: 1.7;
}
.partner-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 20px 44px;
  border-radius: 999px;
  text-decoration: none;
  color: #fff;
  font-weight: 700;
  font-size: 20px;
  background: linear-gradient(to right, var(--official), var(--labs));
  transition: all 0.25s ease;
}
.partner-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 30px rgba(0, 210, 255, 0.4);
}

.footer {
  padding: 84px 0 42px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  background: #02040a;
  position: relative;
  z-index: 10;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  margin-bottom: 60px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-family: Orbitron, 'Segoe UI', sans-serif;
  font-weight: 700;
  letter-spacing: 0.1em;
}
.footer-top p {
  margin: 0;
  color: var(--text);
  max-width: 390px;
  font-size: 14px;
  line-height: 1.7;
  font-weight: 300;
}
.footer-top > a {
  text-decoration: none;
  color: #fff;
  font-size: 14px;
  padding: 12px 30px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  transition: all 0.25s ease;
}
.footer-top > a:hover {
  background: #fff;
  color: #000;
}
.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: #6b7280;
  font-size: 12px;
  font-weight: 500;
}
.footer-bottom p { margin: 0; }
.footer-bottom > div {
  display: flex;
  gap: 24px;
}
.footer-bottom a {
  color: #6b7280;
  text-decoration: none;
}
.footer-bottom a:hover { color: #fff; }

.icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  vertical-align: middle;
}
.w-4 { width: 16px; height: 16px; }
.h-4 { width: 16px; height: 16px; }
.w-5 { width: 20px; height: 20px; }
.h-5 { width: 20px; height: 20px; }
.w-6 { width: 24px; height: 24px; }
.h-6 { width: 24px; height: 24px; }
.w-10 { width: 40px; height: 40px; }
.h-10 { width: 40px; height: 40px; }
.text-brand-labs { color: var(--labs); }

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}
.active { opacity: 1; }
.delay-2 { transition-delay: 0.2s; }
.delay-5 { animation-delay: 0.5s; }
.delay-10 { transition-delay: 1s; }
.mb-2 { margin-bottom: 8px; }
.hidden-md { display: none; }

.svg-draw {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: drawSVG 3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes drawSVG { to { stroke-dashoffset: 0; } }
@keyframes orbFloat {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(50px, -50px) scale(1.2); }
}
@media (max-width: 1024px) {
  .two-col { gap: 32px; }
  .card h4 { font-size: 26px; }
}

@media (max-width: 820px) {
  .desktop-nav { display: none; }
  .mobile-nav-actions { display: flex; }
  .container { width: min(1120px, calc(100% - 28px)); }
  .hero-logo-wrap { width: 160px; height: 160px; }
  .hero p { font-size: 17px; }
  .section { padding: 92px 0; }
  .two-col { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; align-items: flex-start; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-bottom > div { flex-wrap: wrap; gap: 12px; }
  .hidden-md { display: inline; }
  .section-center { min-height: auto; padding: 102px 14px 48px; }
  .hero-actions { width: 100%; max-width: 560px; gap: 12px; }
  .btn-primary,
  .btn-secondary { width: 100%; justify-content: center; }
  .scroll-hint { display: none; }
}

@media (max-width: 560px) {
  .navbar { padding: 12px 0; }
  .brand-text { font-size: 15px; letter-spacing: 0.08em; }
  .nav-inner { gap: 10px; }
  .lang-btn { padding: 6px 10px; font-size: 12px; }

  .section-center { padding: 96px 14px 34px; }
  .hero h1 { font-size: 34px; line-height: 1.2; }
  .hero p { margin: 18px auto 30px; font-size: 15px; line-height: 1.65; }
  .hero-badge { font-size: 11px; letter-spacing: 0.08em; }
  .hero-actions { gap: 10px; width: 100%; }
  .btn-primary,
  .btn-secondary {
    width: 100%;
    justify-content: center;
    padding: 14px 16px;
    font-size: 15px;
  }

  .section { padding: 72px 0; }
  .section-head { margin-bottom: 34px; }
  .section-head h2 { font-size: 30px; margin-bottom: 14px; }
  .section-head p { font-size: 15px; }

  .card { padding: 24px; }
  .logo-holder { width: 96px; height: 96px; margin-bottom: 20px; }
  .card h3 { font-size: 24px; }
  .card h4 { font-size: 22px; margin-bottom: 10px; }
  .card p { font-size: 15px; line-height: 1.65; }

  .section-partnership h2 { font-size: 30px; }
  .section-partnership > .container > p { font-size: 15px; margin-bottom: 28px; }
  .feature-box { padding: 18px; }
  .feature-box h4 { font-size: 18px; }
  .partner-btn {
    width: 100%;
    justify-content: center;
    font-size: 16px;
    padding: 15px 14px;
  }

  .footer { padding-top: 56px; }
  .footer-top { margin-bottom: 34px; }
}

@media (max-width: 420px) {
  .container { width: calc(100% - 20px); }
  .brand-text { font-size: 14px; letter-spacing: 0.05em; }
  .mobile-nav-actions { gap: 8px; }
  .hero-logo-wrap { width: 132px; height: 132px; margin-bottom: 24px; }
  .hero h1 { font-size: 30px; }
  .section-partnership h2 { font-size: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}