/* ============================================
   ADFA Tech — Palantir-inspired dark theme
   ============================================ */

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #161616;
  --bg-card-hover: #1a1a1a;
  --border: #222222;
  --border-hover: #333333;
  --text-primary: #e8e8e8;
  --text-secondary: #888888;
  --text-muted: #555555;
  --accent: #ffffff;
  --accent-dim: rgba(255, 255, 255, 0.06);
  --accent-glow: rgba(255, 255, 255, 0.03);
  --blue: #4a9eff;
  --blue-dim: rgba(74, 158, 255, 0.08);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 4px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---- Navigation ---- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-primary);
  text-decoration: none;
}

.logo-accent {
  color: var(--text-muted);
  font-weight: 400;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links .nav-cta {
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.nav-links .nav-cta:hover {
  border-color: var(--border-hover);
  background: var(--accent-dim);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-secondary);
  transition: all var(--transition);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 2rem;
  flex-direction: column;
  gap: 1rem;
  z-index: 99;
}

.mobile-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 0.5rem 0;
  transition: color var(--transition);
}

.mobile-menu a:hover {
  color: var(--text-primary);
}

.mobile-menu.active {
  display: flex;
}

/* ---- Hero ---- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.4;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 2rem;
}

.hero-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-fade {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, var(--bg-primary), transparent);
  z-index: 1;
}

/* ---- Buttons ---- */

.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background: #ffffff;
  box-shadow: 0 0 30px rgba(255, 255, 255, 0.1);
}

.btn-ghost {
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: transparent;
}

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: var(--accent-dim);
}

.btn-outline {
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: transparent;
}

.btn-outline:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.btn-full {
  width: 100%;
  text-align: center;
}

/* ---- Sections ---- */

.section {
  padding: 8rem 0;
}

.section-eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section-sub {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 4rem;
}

/* ---- Mission / Pledge ---- */

.mission {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.pledge-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.pledge-body p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.pledge-highlight {
  font-size: 1.2rem;
  color: var(--text-primary);
  font-weight: 500;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  letter-spacing: -0.01em;
}

/* ---- Products ---- */

.products {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-hover), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.product-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.product-card:hover::before {
  opacity: 1;
}

.product-icon {
  width: 48px;
  height: 48px;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.product-name {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.25rem;
}

.product-tagline {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.product-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.product-features {
  list-style: none;
  margin-bottom: 2rem;
}

.product-features li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 0.4rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.product-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
  transform: translateY(-50%);
}

.product-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blue);
  background: var(--blue-dim);
  border: 1px solid rgba(74, 158, 255, 0.2);
  padding: 0.4rem 0.9rem;
  border-radius: 99px;
  font-weight: 500;
  z-index: 2;
}

.product-card.featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 2fr;
  gap: 3rem;
  align-items: start;
}

.product-card.featured .featured-left,
.product-card.featured .featured-right {
  display: flex;
  flex-direction: column;
}

.product-card.featured .product-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 1.75rem;
}

.product-card.featured .product-name {
  font-size: 2rem;
}

.product-card.featured .featured-right .product-features {
  margin-bottom: 2rem;
}

.product-card.featured .product-badge {
  position: static;
  align-self: flex-start;
  margin-bottom: 1.25rem;
}

/* ---- Arcana ---- */

.arcana {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.arcana-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.arcana-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.arcana-visual {
  position: relative;
  height: 400px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-primary);
}

#arcana-canvas {
  width: 100%;
  height: 100%;
}

/* ---- Contact ---- */

.contact {
  background: var(--bg-primary);
}

.contact-inner {
  max-width: 640px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font);
  font-size: 0.9rem;
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--border-hover);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23555' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* ---- Footer ---- */

.footer {
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
  background: var(--bg-primary);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 4rem;
  align-items: start;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.footer-links {
  display: flex;
  gap: 4rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-col h4 {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--text-primary);
}

.footer-copy {
  grid-column: 1 / -1;
  font-size: 0.75rem;
  color: var(--text-muted);
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  margin-top: 2rem;
}

/* ---- Animations ---- */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive ---- */

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }

  .arcana-grid {
    grid-template-columns: 1fr;
  }

  .arcana-visual {
    height: 300px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-links {
    gap: 3rem;
  }

  .section {
    padding: 5rem 0;
  }

  .product-card {
    padding: 2rem;
  }

  .product-card.featured {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .product-card.featured .product-name {
    font-size: 1.5rem;
  }

  .product-card.featured .product-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 2rem;
  }
}