:root {
  color-scheme: dark;
  color: #f5f7fb;
  background: #060b18;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  line-height: 1.6;
}

/* Navigation */
.nav-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 11, 24, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(99, 102, 241, 0.1);
}

.nav-container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 700;
  color: #6366f1;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: #cbd5e1;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: #6366f1;
}

.page-shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 48px 24px;
}

.hero {
  display: grid;
  gap: 32px;
  align-items: center;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  margin-bottom: 80px;
}

.eyebrow {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.18);
  color: #d7dbff;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.6rem, 4vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
  color: #ffffff;
}

.hero p {
  max-width: 620px;
  margin: 24px 0 0;
  color: #d7dbff;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: #6366f1;
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.16s ease, background-color 0.16s ease;
  cursor: pointer;
  font-size: 1rem;
}

.button:hover {
  transform: translateY(-1px);
  background: #4f46e5;
}

.button-secondary {
  background: transparent;
  border-color: rgba(255,255,255,0.12);
}

.button-secondary:hover {
  background: rgba(99, 102, 241, 0.1);
}

.hero-visual {
  position: relative;
}

.card {
  background: linear-gradient(180deg, rgba(99,102,241,0.22), rgba(15,23,42,0.96));
  border: 1px solid rgba(99,102,241,0.24);
  border-radius: 32px;
  padding: 32px;
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.28);
}

.card-title {
  margin: 0 0 14px;
  font-size: 1.05rem;
  color: #a5b4fc;
}

.card-text {
  margin: 0;
  color: #e2e8f0;
}

.features {
  display: grid;
  gap: 20px;
  margin: 80px 0 60px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.features article {
  padding: 28px;
  border-radius: 24px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(255,255,255,0.08);
}

.features h2 {
  margin: 0 0 12px;
  font-size: 1.3rem;
}

.features p {
  margin: 0;
  color: #cbd5e1;
}

/* About Section */
.about-section {
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.08), rgba(15, 23, 42, 0.6));
  border: 1px solid rgba(99, 102, 241, 0.15);
  border-radius: 32px;
  padding: 48px;
  margin: 80px 0;
}

.about-content h2 {
  margin-top: 0;
  margin-bottom: 16px;
  font-size: 2rem;
}

.about-content p {
  color: #cbd5e1;
  margin-bottom: 24px;
}

.about-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.about-list li {
  padding: 12px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 12px;
  color: #d7dbff;
  border-left: 3px solid #6366f1;
  padding-left: 16px;
}

/* Contact Section */
.contact-section {
  text-align: center;
  padding: 48px 0;
  margin: 80px 0;
}

.contact-section h2 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 2rem;
}

.contact-section > p {
  color: #cbd5e1;
  margin-bottom: 36px;
}

.contact-form {
  max-width: 500px;
  margin: 0 auto 32px;
  display: grid;
  gap: 16px;
}

.form-group {
  display: grid;
}

.contact-form input,
.contact-form textarea {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(99, 102, 241, 0.3);
  background: rgba(99, 102, 241, 0.05);
  color: #f5f7fb;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #94a3b8;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: #6366f1;
  background: rgba(99, 102, 241, 0.1);
}

.contact-alt {
  color: #cbd5e1;
}

/* Footer */
.footer {
  background: rgba(15, 23, 42, 0.95);
  border-top: 1px solid rgba(99, 102, 241, 0.1);
  padding: 40px 24px;
  margin-top: 100px;
}

.footer-content {
  max-width: 1080px;
  margin: 0 auto;
  text-align: center;
  color: #94a3b8;
}

.footer-content p {
  margin: 4px 0;
  font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
  }
  
  .features {
    grid-template-columns: 1fr;
  }

  .nav-links {
    gap: 16px;
    font-size: 0.9rem;
  }

  .about-list {
    grid-template-columns: 1fr;
  }
}