:root {
  --color-black: #000000;
  --color-offwhite: #F0ECE5;
  --color-gray: #E0DBD3;
  --color-dark-gray: #111111;
  --color-muted: #666666;
  --color-cyan: #00F0FF;
  --color-white: #FFFFFF;
  --font-main: 'Inter', -apple-system, sans-serif;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--color-black);
  color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 4rem;
}

/* Canvas Background */
#neural-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: -1;
  opacity: 0.8;
  pointer-events: none;
}

/* Floating Nav */
.floating-nav {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 3rem;
  background: rgba(20, 20, 20, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 100;
}
.nav-brand {
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.5px;
}
.nav-links {
  display: flex;
  gap: 2rem;
}
.nav-links a {
  color: #AAAAAA;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}
.nav-links a:hover {
  color: var(--color-white);
}
.nav-cta {
  background: var(--color-white);
  color: var(--color-black);
  text-decoration: none;
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: transform 0.2s;
}
.nav-cta:hover {
  transform: scale(1.05);
}

/* Dark Section / Hero */
.dark-mode {
  background-color: var(--color-black);
  color: var(--color-white);
}
.hero-section {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 2rem;
  position: relative;
}
.hero-content {
  max-width: 900px;
  z-index: 10;
}
.pill-badge {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 2rem;
  background: rgba(255, 255, 255, 0.05);
}
.headline {
  font-size: clamp(4rem, 8vw, 7rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -3px;
  margin-bottom: 2rem;
}
.subheadline {
  font-size: 1.25rem;
  color: #CCCCCC;
  max-width: 600px;
  margin: 0 auto 3rem;
  font-weight: 400;
}
.btn-primary {
  display: inline-block;
  background: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-white);
  padding: 1rem 2.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
}
.btn-primary:hover {
  background: var(--color-white);
  color: var(--color-black);
}

/* Light Section / Features */
.light-section {
  background-color: var(--color-offwhite);
  color: var(--color-dark-gray);
  padding: 10rem 0;
}
.gray-bg {
  background-color: var(--color-gray);
}
.section-title {
  margin-bottom: 6rem;
}
.section-title h2 {
  font-size: 4rem;
  font-weight: 700;
  letter-spacing: -2px;
  line-height: 1.1;
  max-width: 800px;
  margin-bottom: 1.5rem;
}
.section-title p {
  font-size: 1.5rem;
  color: var(--color-muted);
}

.minimal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4rem;
}
.minimal-card {
  border-top: 2px solid var(--color-dark-gray);
  padding-top: 2rem;
}
.card-num {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 3rem;
}
.minimal-card h3 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: -1px;
}
.minimal-card p {
  font-size: 1.1rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* Integration Section */
.integration-container {
  display: flex;
  align-items: center;
  gap: 6rem;
}
.integration-text {
  flex: 1;
}
.integration-text h2 {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -2px;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}
.integration-text p {
  font-size: 1.25rem;
  color: var(--color-muted);
  margin-bottom: 3rem;
}
.check-list {
  list-style: none;
}
.check-list li {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.check-list li::before {
  content: "→";
  color: var(--color-dark-gray);
}
.integration-visual {
  flex: 1;
}
.app-screenshot {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.15);
  transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}
.app-screenshot:hover {
  transform: translateY(-10px);
}

/* Footer */
.footer {
  padding: 8rem 0 4rem;
}
.footer-content {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6rem;
}
.footer-logo {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -2px;
  margin-bottom: 1rem;
}
.footer-left p {
  color: #888;
  font-size: 1.2rem;
}
.footer-links {
  display: flex;
  gap: 6rem;
}
.link-column h4 {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: #555;
}
.link-column a {
  display: block;
  color: var(--color-white);
  text-decoration: none;
  font-size: 1.1rem;
  margin-bottom: 1rem;
  font-weight: 500;
  transition: opacity 0.2s;
}
.link-column a:hover {
  opacity: 0.7;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
  color: #666;
}

.download-note {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
}
.download-note strong {
  color: rgba(255,255,255,0.8);
  font-family: monospace;
  background: rgba(255,255,255,0.1);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
}

@media (max-width: 1000px) {
  .minimal-grid { grid-template-columns: 1fr; }
  .integration-container { flex-direction: column; }
  .headline { font-size: 4rem; }
  .section-title h2 { font-size: 3rem; }
  .floating-nav { width: 90%; justify-content: space-between; }
  .nav-links { display: none; }
}