:root{
  --bg: #0a0e13;
  --bg-alt: #0d131a;
  --card: #111820;
  --border: rgba(255,255,255,0.08);
  --text: #eef1f5;
  --text-dim: #98a4b3;
  --accent: #5fa8c9;
  --accent-2: #8b98d1;
  --font-display: 'Source Serif 4', serif;
  --font-body: 'Inter', sans-serif;
}

*{ margin:0; padding:0; box-sizing:border-box; }

html{ scroll-behavior: smooth; }

body{
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
}

.container{
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 32px;
}

h1, h2, h3{
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.accent{ color: var(--accent); }

.eyebrow{
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--accent);
  margin-bottom: 16px;
}

.idx{
  font-family: var(--font-body);
  color: var(--text-dim);
  opacity: 0.6;
  margin-right: 10px;
  letter-spacing: 0;
}

/* Scroll progress bar */
.scroll-progress{
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  z-index: 1000;
  transition: width 0.1s ease-out;
}

/* Navbar */
.navbar{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  background: rgba(10,14,19,0.7);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.navbar.scrolled{
  border-bottom-color: var(--border);
  background: rgba(10,14,19,0.94);
}
.nav-inner{
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.01em;
}
.logo span{ color: var(--accent); margin-left: 4px; }

.nav-links{
  list-style: none;
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a{
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}
.nav-links a:hover, .nav-links a.active{
  color: var(--text);
}
.nav-links a.active::after{
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 100%; height: 2px;
  background: var(--accent);
}
.nav-cta{
  background: var(--text);
  color: var(--bg) !important;
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 600 !important;
}
.nav-cta:hover{ background: var(--accent) !important; }
.nav-cta.active::after{ display:none; }

.nav-toggle{
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span{
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* Hero */
.hero{
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 32px 80px;
  overflow: hidden;
}
.grid-bg{
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(95,168,201,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(95,168,201,0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 20%, transparent 75%);
}
.glow{
  position: absolute;
  top: -10%; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 900px;
  background: radial-gradient(circle, rgba(95,168,201,0.14) 0%, rgba(139,152,209,0.06) 40%, transparent 70%);
  filter: blur(20px);
}
.hero-content{
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 780px;
}
.hero h1{
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  line-height: 1.15;
  margin-bottom: 24px;
}
.hero-sub{
  font-size: 1.1rem;
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 auto 40px;
}
.hero-scenarios{
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 0 auto 36px;
  flex-wrap: wrap;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-dim);
}
.scenario-divider{
  color: var(--accent);
}

.hero-actions{
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn{
  display: inline-block;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font-body);
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn-primary{
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #06090c;
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 10px 30px rgba(95,168,201,0.22); }
.btn-ghost{
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-ghost:hover{ border-color: var(--accent); color: var(--accent); }
.btn-lg{ padding: 18px 40px; font-size: 1.05rem; }

.scroll-cue{
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid var(--border);
  border-radius: 20px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
  z-index: 2;
}
.scroll-cue span{
  width: 4px; height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollcue 1.6s ease-in-out infinite;
}
@keyframes scrollcue{
  0%{ opacity: 1; transform: translateY(0); }
  100%{ opacity: 0; transform: translateY(14px); }
}

/* Sections */
.section{
  padding: 120px 0;
  position: relative;
  border-top: 1px solid var(--border);
}
.section-dark{
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.section h2{
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  margin-bottom: 20px;
  max-width: 700px;
}
.section-lead{
  color: var(--text-dim);
  font-size: 1.03rem;
  max-width: 660px;
  margin-bottom: 48px;
}
.section-note{
  color: var(--text-dim);
  font-size: 0.85rem;
  font-style: italic;
  max-width: 700px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* Mid-page CTA strip */
.cta-strip{
  padding: 48px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(95,168,201,0.05), transparent);
}
.cta-strip-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.cta-strip-inner p{
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
}

/* Reveal animation */
.reveal{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in-view{
  opacity: 1;
  transform: translateY(0);
}

/* Stat row */
.stat-row{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.stat-card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.stat-number{
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}
.stat-label{
  color: var(--text-dim);
  font-size: 0.88rem;
}

.pain-list{
  list-style: none;
  display: grid;
  gap: 14px;
  max-width: 660px;
}
.pain-list li{
  position: relative;
  padding-left: 24px;
  color: var(--text-dim);
}
.pain-list li::before{
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* Flow */
.flow{
  display: flex;
  align-items: stretch;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.flow-step{
  flex: 1;
  min-width: 220px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
}
.flow-index{
  display: inline-block;
  font-family: var(--font-display);
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 12px;
}
.flow-step h3{ margin-bottom: 10px; font-size: 1.05rem; }
.flow-step p{ color: var(--text-dim); font-size: 0.9rem; }
.flow-arrow{
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.4rem;
  font-weight: 700;
}

/* Feature cards */
.card-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.feature-card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.feature-card:hover{
  border-color: var(--accent);
  transform: translateY(-4px);
}
.feature-icon{
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 16px;
}
.feature-card h3{ font-size: 1.05rem; margin-bottom: 10px; }
.feature-card p{ color: var(--text-dim); font-size: 0.9rem; }

/* Principles / IP grid */
.principle-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.principle-card{
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  background: linear-gradient(180deg, rgba(95,168,201,0.04), transparent);
}
.principle-card h3{ font-size: 1.02rem; margin-bottom: 10px; font-family: var(--font-display); }
.principle-card p{ color: var(--text-dim); font-size: 0.9rem; }

/* Team */
.team-card{
  display: flex;
  gap: 28px;
  align-items: flex-start;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  max-width: 780px;
}
.team-avatar{
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06090c;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.team-info h3{ font-size: 1.15rem; margin-bottom: 4px; }
.team-role{ color: var(--accent); font-size: 0.85rem; font-weight: 600; margin-bottom: 12px; }
.team-info p:not(.team-role){ color: var(--text-dim); font-size: 0.92rem; }

/* CTA */
.cta-section{
  padding: 140px 0;
  text-align: center;
}
.cta-container{ display: flex; flex-direction: column; align-items: center; }
.cta-section h2{ margin: 0 auto 20px; }
.cta-section .section-lead{ margin-left: auto; margin-right: auto; }

/* Footer */
.footer{
  border-top: 1px solid var(--border);
  padding: 40px 0;
}
.footer-inner{
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer p{ color: var(--text-dim); font-size: 0.82rem; max-width: 480px; }

/* Responsive */
@media (max-width: 860px){
  .card-grid, .principle-grid{ grid-template-columns: 1fr; }
  .stat-row{ grid-template-columns: 1fr; }
  .flow{ flex-direction: column; }
  .flow-arrow{ transform: rotate(90deg); }
  .team-card{ flex-direction: column; }
}

@media (max-width: 480px){
  .scenario-divider{ display: none; }
  .hero-scenarios{ flex-direction: column; gap: 12px; }
}

@media (max-width: 720px){
  .nav-toggle{ display: flex; }
  .nav-links{
    position: fixed;
    top: 62px; left: 0; right: 0;
    background: rgba(10,14,19,0.98);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 32px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }
  .nav-links.open{
    transform: translateY(0);
    opacity: 1;
  }
}