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

html, body {
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  background: #0b1220;
  color: #e5e7eb;
  line-height: 1.6;
}

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(11, 18, 32, 0.96);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.28);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: radial-gradient(circle at 20% 0%, #38bdf8, #1d4ed8 45%, #020617);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #e5e7eb;
}

.main-nav {
  display: flex;
  gap: 1.5rem;
  font-size: 0.9rem;
  color: #9ca3af;
}

.main-nav a {
  position: relative;
  padding-bottom: 0.2rem;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(to right, #38bdf8, #3b82f6);
  transition: width 0.18s ease-out;
}

.main-nav a:hover {
  color: #e5e7eb;
}

.main-nav a:hover::after {
  width: 100%;
}

.header-cta {
  font-size: 0.9rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  color: #e5e7eb;
}

.header-cta:hover {
  border-color: #38bdf8;
}

.hero {
  padding: 4.5rem 0 3.5rem;
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.12), transparent 55%);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #60a5fa;
  margin-bottom: 0.75rem;
}

.hero h1 {
  font-size: clamp(2.1rem, 2.9vw, 2.9rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  color: #f9fafb;
}

.hero-subtitle {
  font-size: 0.98rem;
  color: #cbd5f5;
  max-width: 34rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 1.9rem 0 1rem;
}

.primary-btn,
.ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.35rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
}

.primary-btn {
  background: linear-gradient(to right, #38bdf8, #3b82f6);
  color: #0b1120;
}

.primary-btn:hover {
  filter: brightness(1.06);
}

.ghost-btn {
  border: 1px solid rgba(148, 163, 184, 0.55);
  color: #e5e7eb;
}

.ghost-btn:hover {
  border-color: #38bdf8;
}

.hero-note {
  font-size: 0.78rem;
  color: #9ca3af;
  max-width: 30rem;
}

.hero-panel {
  display: grid;
  gap: 1rem;
}

.hero-card {
  border-radius: 1.25rem;
  padding: 1.15rem 1.2rem;
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.2), rgba(15, 23, 42, 0.95));
  border: 1px solid rgba(148, 163, 184, 0.45);
}

.hero-card-accent {
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.22), rgba(15, 23, 42, 0.98));
  border-color: rgba(56, 189, 248, 0.7);
}

.hero-card-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #a5b4fc;
  margin-bottom: 0.4rem;
}

.hero-card-text {
  font-size: 0.9rem;
  color: #e5e7eb;
}

.section {
  padding: 3.5rem 0;
}

.section.alt {
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 1));
}

.section-header {
  text-align: left;
  margin-bottom: 2rem;
}

.section-header h2 {
  font-size: 1.7rem;
  letter-spacing: -0.02em;
  color: #e5e7eb;
  margin-bottom: 0.4rem;
}

.section-intro {
  font-size: 0.96rem;
  color: #cbd5f5;
  max-width: 34rem;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 2.75rem;
  align-items: flex-start;
}

.two-column.reverse {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
}

.section-copy h2 {
  font-size: 1.7rem;
  letter-spacing: -0.02em;
  color: #e5e7eb;
  margin-bottom: 0.6rem;
}

.section-copy p {
  font-size: 0.95rem;
  color: #d1d5db;
  margin-bottom: 0.75rem;
}

.section-copy .subtle {
  font-size: 0.85rem;
  color: #9ca3af;
}

.section-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.pill-list {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.pill {
  padding: 0.75rem 0.95rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.6);
  font-size: 0.9rem;
  color: #e5e7eb;
}

.card-list {
  display: grid;
  gap: 1rem;
}

.mini-card {
  padding: 1rem 1.1rem;
  border-radius: 1.1rem;
  background: rgba(15, 23, 42, 0.98);
  border: 1px solid rgba(148, 163, 184, 0.45);
}

.mini-card h3 {
  font-size: 1rem;
  margin-bottom: 0.4rem;
  color: #e5e7eb;
}

.mini-card p {
  font-size: 0.9rem;
  color: #cbd5f5;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}

.tech-item {
  padding: 1.1rem 1.1rem;
  border-radius: 1.2rem;
  background: rgba(15, 23, 42, 0.98);
  border: 1px solid rgba(148, 163, 184, 0.5);
}

.tech-item h3 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
  color: #e5e7eb;
}

.tech-item p {
  font-size: 0.88rem;
  color: #cbd5f5;
}

.usecase-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.usecase-item {
  padding: 1.1rem 1.15rem;
  border-radius: 1.15rem;
  background: rgba(15, 23, 42, 0.98);
  border: 1px solid rgba(148, 163, 184, 0.5);
}

.usecase-item h3 {
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.usecase-item p {
  font-size: 0.9rem;
  color: #cbd5f5;
}

.bio-card {
  padding: 1.2rem 1.3rem;
  border-radius: 1.4rem;
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.25), rgba(15, 23, 42, 0.98));
  border: 1px solid rgba(56, 189, 248, 0.8);
}

.bio-name {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
  color: #f9fafb;
}

.bio-role {
  font-size: 0.85rem;
  color: #c7d2fe;
  margin-bottom: 0.5rem;
}

.bio-text {
  font-size: 0.9rem;
  color: #e5e7eb;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: flex-start;
}

.contact-panel {
  display: flex;
  justify-content: flex-end;
}

.contact-card {
  width: 100%;
  max-width: 320px;
  padding: 1.3rem 1.3rem;
  border-radius: 1.3rem;
  background: rgba(15, 23, 42, 0.98);
  border: 1px solid rgba(148, 163, 184, 0.6);
}

.contact-label {
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #9ca3af;
  margin-bottom: 0.45rem;
}

.contact-email {
  display: inline-block;
  font-size: 0.96rem;
  color: #38bdf8;
  margin-bottom: 0.5rem;
}

.contact-note {
  font-size: 0.85rem;
  color: #9ca3af;
}

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.4);
  padding: 1.3rem 0 1.6rem;
  background: #020617;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: #9ca3af;
}

.footer-meta {
  color: #6b7280;
}

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.5rem;
  }

  .hero-panel {
    grid-template-columns: minmax(0, 1fr);
  }

  .two-column,
  .two-column.reverse {
    grid-template-columns: minmax(0, 1fr);
  }

  .tech-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .usecase-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .contact-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .contact-panel {
    justify-content: flex-start;
  }

  .main-nav {
    display: none;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 3.3rem;
  }

  .section {
    padding: 2.6rem 0;
  }

  .tech-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .header-inner {
    gap: 0.6rem;
  }
}