:root{
  --font: "Pretendard", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  --color-bg: #0b0f17;
  --color-surface: rgba(255,255,255,0.06);
  --color-border: rgba(255,255,255,0.10);

  --color-text: rgba(255,255,255,0.92);
  --color-muted: rgba(255,255,255,0.72);
  --color-faint: rgba(255,255,255,0.55);

  --color-accent: #7C5CFF;
  --color-accent-2: #3FE3C5;

  --radius: 16px;
  --shadow: 0 12px 40px rgba(0,0,0,0.35);

  --max: 1120px;
  --pad: 20px;

  --gap-s: 12px;
  --gap-m: 18px;
  --gap-l: 28px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font);
  color: var(--color-text);
  background:
    radial-gradient(900px 500px at 12% 10%, rgba(124,92,255,0.20), transparent 55%),
    radial-gradient(800px 500px at 85% 15%, rgba(63,227,197,0.10), transparent 60%),
    var(--color-bg);
  line-height: 1.6;
}
a{ color: inherit; text-decoration: none; }
strong{ font-weight: 700; }
.accent{ color: var(--color-accent); }
.muted{ color: var(--color-muted); }
.tiny{ font-size: 0.85rem; }

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

.section{ padding: 78px 0; }
.mt{ margin-top: var(--gap-l); }

.section-title{
  font-size: clamp(1.45rem, 2.2vw, 2rem);
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}
.section-desc{
  margin: 0 0 28px;
  color: var(--color-muted);
  max-width: 72ch;
}

/* Navbar */
#navbar{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11,15,23,0.65);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, background .2s ease;
}
#navbar.is-scrolled{
  background: rgba(11,15,23,0.85);
  border-color: var(--color-border);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 14px;
}
.logo{
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 1.1rem;
}
.logo-dot{ color: var(--color-accent); }
.nav-links{
  display:flex;
  gap: 18px;
  align-items:center;
  color: var(--color-muted);
}
.nav-links a{
  padding: 8px 10px;
  border-radius: 10px;
  transition: background .15s ease, color .15s ease;
}
.nav-links a:hover{
  background: rgba(255,255,255,0.06);
  color: var(--color-text);
}
.nav-cta-group{
  display:flex;
  gap: 10px;
  align-items:center;
}

/* Buttons */
.cta-button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(124,92,255,0.95), rgba(63,227,197,0.55));
  border: 1px solid rgba(255,255,255,0.12);
  color: #0b0f17;
  font-weight: 700;
  box-shadow: 0 10px 30px rgba(124,92,255,0.18);
  transition: transform .12s ease, filter .12s ease;
}
.cta-button:hover{ transform: translateY(-1px); filter: brightness(1.02); }
.cta-secondary{
  background: rgba(255,255,255,0.06);
  color: var(--color-text);
  box-shadow: none;
}
.nav-cta{ padding: 10px 14px; }

/* Cards + grid */
.card{
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.grid-2{ display:grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap-m); }
.grid-3{ display:grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap-m); }

.icon, .service-icon{
  color: var(--color-accent);
  font-size: 28px;
  margin-bottom: 8px;
}
.service-card h3{ margin-top: 6px; }

/* Hero */
.hero{ padding-top: 64px; }
.hero-grid{
  display:grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 26px;
  align-items: start;
}
.eyebrow{
  color: var(--color-muted);
  margin: 0 0 10px;
  font-weight: 600;
}
#hero-headline{
  margin: 0 0 14px;
  font-size: clamp(1.9rem, 3vw, 2.7rem);
  line-height: 1.18;
  letter-spacing: -0.03em;
}
#hero-subcopy{
  margin: 0 0 18px;
  color: var(--color-muted);
  max-width: 70ch;
}

.hero-highlight{
  margin: 14px 0 10px;
  padding: 14px 16px;
  background: rgba(255,255,255,0.05);
}
.hero-highlight-title{
  margin: 0 0 6px;
  font-weight: 800;
  display:flex;
  align-items:center;
  gap: 8px;
}
.hero-highlight-title .material-icons{
  color: var(--color-accent-2);
}
.hero-highlight-desc{
  margin: 0;
}

.hero-cta-group{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 12px 0 14px;
}
.hero-bullets{
  list-style:none;
  padding:0;
  margin: 0 0 14px;
  display:flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  color: var(--color-muted);
}
.bullet-icon{
  font-size: 1.05rem;
  vertical-align: middle;
  color: var(--color-accent);
  margin-right: 6px;
}

.typing-container{
  display:flex;
  gap: 10px;
  align-items: baseline;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 10px 12px;
}
.typing-label{ color: var(--color-faint); font-weight: 600; white-space: nowrap; }
.typing-output{ color: var(--color-text); font-weight: 800; }

/* Hero visual */
.card-head h3{ margin: 0 0 4px; }
.data-list{ margin-top: 14px; display:flex; flex-direction: column; gap: 10px; }
.data-point{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
}
.data-value{
  font-weight: 900;
  color: var(--color-accent-2);
}
.sparkline{
  margin-top: 14px;
  color: rgba(255,255,255,0.55);
}
.sparkline svg{ display:block; opacity: 0.9; }

/* Flow */
.flow{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap-m);
}
.flow-step h3{ margin: 10px 0 6px; }
.step-visual{
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight: 900;
  color: #0b0f17;
  background: linear-gradient(135deg, rgba(124,92,255,0.95), rgba(63,227,197,0.55));
}

/* Note/CTA blocks */
.note p{ margin: 6px 0; }
.mini-cta{ text-align: center; }

.final-cta{
  padding: 72px 0;
  background: radial-gradient(700px 380px at 50% 0%, rgba(124,92,255,0.22), transparent 60%);
  border-top: 1px solid var(--color-border);
}
.final-cta h2{
  margin:0 0 10px;
  font-size: clamp(1.5rem, 2.4vw, 2.2rem);
  letter-spacing: -0.02em;
}
.cta-row{ display:flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }

/* FAQ */
.faq-list{ display:flex; flex-direction: column; gap: var(--gap-s); }
.faq-question{
  width: 100%;
  display:flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 14px 14px;
  background: transparent;
  border: none;
  color: var(--color-text);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  text-align: left;
}
.faq-icon{
  color: var(--color-accent);
  transition: transform .15s ease;
}
.faq-item[aria-expanded="true"] .faq-icon{ transform: rotate(45deg); }
.faq-answer{
  padding: 0 14px 14px;
  color: var(--color-muted);
}
.faq-answer p{ margin: 0; }

/* Reveal */
.reveal{
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .45s ease, transform .45s ease;
  will-change: opacity, transform;
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}

/* Footer */
.footer{
  padding: 26px 0 40px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

/* Responsive */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .flow{ grid-template-columns: repeat(2, 1fr); }
  .grid-3{ grid-template-columns: 1fr; }
  .grid-2{ grid-template-columns: 1fr; }
  .nav-links{ display:none; }
}