:root {
  --bg-primary: #090d16;
  --bg-secondary: #0f172a;
  --bg-card: #1e293b;
  --border-color: rgba(255, 255, 255, 0.08);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-blue: #3b82f6;
  --accent-blue-hover: #2563eb;
  --accent-green: #10b981;
}

/* RESET & GLOBALS */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
}

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

/* TYPOGRAPHY */
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 16px; font-weight: 700; }
h1 { font-size: clamp(2.6rem, 5vw, 4.8rem); max-width: 14ch; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: 1.3rem; }
h4 { font-size: 1rem; }

p { margin: 0 0 18px; }

strong { font-weight: 700; color: var(--accent-blue); }

.subtitle { font-size: 1.1rem; line-height: 1.7; max-width: 800px; color: var(--text-secondary); }
.subtitle-text { font-size: 0.95rem; color: var(--text-muted); margin-top: -8px; margin-bottom: 24px; }

/* HERO SECTION */
.hero {
  padding: 120px 24px 80px;
  background: linear-gradient(135deg, #0b0f19 0%, #1e293b 50%, #0b0f19 100%);
  color: #f5f5f5;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15), transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

.hero > * { position: relative; z-index: 1; }

/* NAVIGATION */
.nav {
  position: fixed;
  top: 16px;
  left: 24px;
  right: 24px;
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  z-index: 100;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.08em;
  font-size: 1.3rem;
  color: #3b82f6; /* Brighter accent for dark mode compatibility */
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  color: #cbd5e1;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

.nav-link:hover {
  color: #3b82f6;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #3b82f6;
  transition: width 0.2s ease;
}

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

.lang-toggle {
  background: rgba(59, 130, 246, 0.15);
  color: #3b82f6;
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.lang-toggle:hover {
  background: rgba(59, 130, 246, 0.25);
  border-color: rgba(59, 130, 246, 0.5);
}

/* HERO GRID & CONTENT */
.hero-grid {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.hero-content {
  padding: 0;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.75rem;
  color: #3b82f6;
  font-weight: 700;
  margin-bottom: 16px;
}

.hero .subtitle {
  color: #94a3b8;
}

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

/* HERO VISUAL MOCKUP WINDOW */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 20px;
  justify-content: center;
  align-items: center;
  perspective: 1000px;
}

.mockup-window {
  background: #090d16;
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 25px rgba(59, 130, 246, 0.1);
  width: 100%;
  max-width: 440px;
  overflow: hidden;
  font-family: "JetBrains Mono", monospace;
  text-align: left;
  transform: rotateY(-5deg) rotateX(5deg);
  transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.mockup-window:hover {
  transform: rotateY(0deg) rotateX(0deg) translateY(-4px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.6), 0 0 35px rgba(59, 130, 246, 0.15);
}

.mockup-header {
  background: #111827;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(59, 130, 246, 0.1);
}

.mockup-header .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 6px;
}

.mockup-header .dot.red { background: #ef4444; }
.mockup-header .dot.yellow { background: #f59e0b; }
.mockup-header .dot.green { background: #10b981; }

.window-title {
  color: #64748b;
  font-size: 0.75rem;
  margin-left: 12px;
}

.mockup-body {
  padding: 18px;
  font-size: 0.8rem;
  line-height: 1.6;
  color: #cbd5e1;
}

.console-line {
  margin-bottom: 10px;
  word-break: break-all;
}

.c-blue { color: #3b82f6; font-weight: 600; }
.c-yellow { color: #f59e0b; }
.c-green { color: #10b981; }
.c-gray { color: #64748b; }
.c-mono { color: #94a3b8; font-size: 0.75rem; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.animate-pulse {
  animation: pulse 2.5s infinite;
}

/* BUTTONS */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 700;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 0.95rem;
}

.button.primary {
  background: var(--accent-blue);
  color: #fff;
}

.button.primary:hover {
  background: var(--accent-blue-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.button.secondary {
  border: 2px solid var(--accent-blue);
  color: var(--accent-blue);
  background: transparent;
}

.button.secondary:hover {
  background: rgba(59, 130, 246, 0.1);
  transform: translateY(-2px);
}

/* SECTIONS */
.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 80px 24px;
}

.section.alt {
  background: var(--bg-secondary);
}

.section-heading {
  margin-bottom: 48px;
}

.section-heading h2 {
  margin-bottom: 8px;
}

/* FEATURES GRID */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
  margin-top: 32px;
}

.feature-card {
  background: rgba(30, 41, 59, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 28px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover {
  border-color: var(--accent-blue);
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.2);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  display: inline-block;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0;
}

/* AUDIENCE GRID */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.audience-card {
  background: rgba(30, 41, 59, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 24px;
  border-radius: 12px;
  border-left: 4px solid var(--accent-blue);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.audience-card:hover {
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.15);
  transform: translateX(4px);
}

.audience-card h3 {
  margin-bottom: 12px;
  color: var(--accent-blue);
}

.audience-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0;
}

/* TRANSPARENCY BLOCK */
.transparency-block {
  background: var(--bg-card);
  border: 2px solid var(--accent-blue);
  border-radius: 12px;
  padding: 32px;
  margin-top: 32px;
}

.transparency-block h3 {
  font-size: 1.25rem;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.transparency-block p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.proof-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.proof-item {
  background: var(--bg-secondary);
  padding: 16px;
  border-radius: 8px;
  border-left: 3px solid var(--accent-green);
  border-top: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.proof-label {
  display: block;
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.proof-detail {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-family: "JetBrains Mono", monospace;
}

/* PRODUCT CARDS */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.product-card {
  background: rgba(30, 41, 59, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 28px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover {
  border-color: var(--accent-blue);
  box-shadow: 0 12px 35px rgba(59, 130, 246, 0.2);
  transform: translateY(-4px);
}

.product-image-container {
  width: 100%;
  height: 180px;
  border-radius: 8px;
  margin-bottom: 20px;
  overflow: hidden;
  background: #090d16;
  border: 1px solid rgba(59, 130, 246, 0.15);
}

.product-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-image {
  transform: scale(1.05);
}

.product-card h3 {
  font-size: 1.15rem;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.product-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.product-card ul {
  margin: 0;
  padding-left: 20px;
  list-style: none;
}

.product-card li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  position: relative;
  padding-left: 16px;
}

.product-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-blue);
  font-weight: bold;
}

.additional-services {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-card);
  padding: 28px;
  border-radius: 12px;
}

.additional-services h3 {
  margin-bottom: 12px;
}

.additional-services p {
  color: var(--text-secondary);
}

/* ACCESS BLOCK */
.access-block {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 32px;
  margin-top: 32px;
}

.access-block p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.access-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.step {
  text-align: center;
  padding: 20px;
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--accent-blue);
  color: white;
  border-radius: 50%;
  font-weight: 800;
  font-size: 1.2rem;
  margin: 0 auto 12px;
}

.step p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* CONTACT FORM */
.contact-wrapper {
  max-width: 600px;
  margin: 32px auto 0;
}

.validation-intro {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-blue);
  border-radius: 12px;
  padding: 20px 22px;
  margin-bottom: 18px;
}

.validation-intro h3 {
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.validation-intro p {
  margin-bottom: 8px;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 32px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

.checkbox-group {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin-top: 3px;
}

.checkbox-group label {
  margin: 0;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group textarea {
  resize: vertical;
}

.contact-form .button {
  width: 100%;
  margin-top: 8px;
}

.form-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 12px;
}

.success-message {
  background: rgba(16, 185, 129, 0.1);
  border: 2px solid var(--accent-green);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
}

.success-message h3 {
  color: var(--accent-green);
  margin-bottom: 8px;
}

.success-message p {
  color: var(--text-secondary);
  margin: 0;
}

/* FAQ */
.faq-grid {
  display: grid;
  gap: 12px;
  margin-top: 32px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.faq-item summary {
  padding: 18px;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  transition: background 0.3s ease;
}

.faq-item summary:hover {
  background: rgba(255, 255, 255, 0.02);
}

.faq-item summary::before {
  content: '+';
  display: inline-block;
  width: 24px;
  height: 24px;
  background: var(--accent-blue);
  color: white;
  border-radius: 50%;
  text-align: center;
  line-height: 24px;
  margin-right: 12px;
  font-weight: bold;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::before {
  content: '−';
  transform: rotate(0deg);
}

.faq-item p {
  padding: 0 18px 18px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin: 0;
}

/* FOOTER */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 40px 24px;
  text-align: center;
  margin-top: 60px;
}

.footer-content p {
  margin: 8px 0;
  font-size: 0.9rem;
}

.footer-content small {
  font-size: 0.85rem;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero {
    padding: 16px 16px 60px;
  }

  .nav {
    margin-bottom: 40px;
  }

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

  .section {
    padding: 60px 16px;
  }

  .features-grid,
  .audience-grid,
  .cards,
  .proof-list,
  .access-steps,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 24px;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .transparency-block,
  .additional-services,
  .access-block {
    padding: 20px;
  }

  .nav-link {
    display: none;
  }

  .nav-menu {
    justify-content: flex-end;
  }
}

@media (max-width: 900px) {
  .proof-list {
    grid-template-columns: 1fr;
  }
}