:root {
  --bg: #080c14;
  --surface: #111621;
  --ink: #f2f4f7;
  --ink-dim: #94a3b8;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --secondary: #64748b;
  --border: #1e293b;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-hover);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: transparent;
  color: var(--ink);
}

input, textarea {
  font-family: inherit;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
  padding: 12px 16px;
  border-radius: var(--radius);
  width: 100%;
  transition: border-color var(--transition);
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

::selection {
  background: var(--accent);
  color: #fff;
}

#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--accent);
  width: 0%;
  z-index: 1000;
  transition: width 0.1s linear;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(8, 12, 20, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

.site-header.shadow {
  box-shadow: var(--shadow);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ink);
  text-transform: uppercase;
}

#menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 32px;
  height: 24px;
  position: relative;
  z-index: 910;
}

#menu-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: var(--transition);
}

.main-nav {
  display: flex;
  gap: 24px;
}

.main-nav a {
  color: var(--ink-dim);
  font-weight: 500;
  font-size: 0.95rem;
}

.main-nav a:hover {
  color: var(--ink);
}

main {
  padding-top: 80px;
}

section {
  padding: 96px 0;
  position: relative;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 48px;
  letter-spacing: -0.02em;
  border-left: 4px solid var(--accent);
  padding-left: 16px;
}

/* Hero */
.hero {
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-visual {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.4;
  pointer-events: auto;
}

.hero-visual svg {
  width: 100%;
  height: 100%;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--ink-dim);
  margin-bottom: 40px;
  max-width: 650px;
  line-height: 1.7;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

/* Metrics */
.metrics {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  font-family: var(--font-mono);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--ink-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* About */
.about .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-visual {
  height: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-visual svg {
  width: 100%;
  height: 100%;
}

.about-text h2 {
  font-size: 2.25rem;
  margin-bottom: 24px;
}

.about-text p {
  margin-bottom: 16px;
  color: var(--ink-dim);
  line-height: 1.8;
}

/* Process */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}

.step-number {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 16px;
  font-family: var(--font-mono);
}

.step h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.step p {
  color: var(--ink-dim);
  line-height: 1.6;
}

/* Features & Benefits */
.feature-cards, .benefit-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
}

.card:hover {
  border-color: var(--accent);
}

.card-icon {
  margin-bottom: 20px;
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.card p {
  color: var(--ink-dim);
  line-height: 1.6;
}

/* Testimonials */
.testimonials {
  background: var(--surface);
}

.testimonial-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.testimonial-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.testimonial-card p {
  font-style: italic;
  margin-bottom: 20px;
  line-height: 1.7;
  color: var(--ink-dim);
}

.testimonial-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 40px;
  height: 40px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.meta-text {
  display: flex;
  flex-direction: column;
}

.meta-text strong {
  color: var(--ink);
  font-size: 0.95rem;
}

.meta-text span {
  color: var(--ink-dim);
  font-size: 0.85rem;
}

.stars {
  color: var(--accent);
  margin-bottom: 12px;
  letter-spacing: 2px;
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px 0;
  font-size: 1.1rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  transition: transform var(--transition);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer p {
  padding-bottom: 20px;
  color: var(--ink-dim);
  line-height: 1.6;
}

/* Forms */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

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

.form-field label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--ink-dim);
}

.field-error {
  display: block;
  color: #ef4444;
  font-size: 0.85rem;
  min-height: 1.2em;
  margin-top: 6px;
}

/* CTA Banner */
.cta-banner {
  background: var(--accent);
  color: #fff;
  text-align: center;
  padding: 80px 0;
}

.cta-banner h2 {
  font-size: 2rem;
  margin-bottom: 32px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--accent);
  font-weight: 700;
}

.cta-banner .btn-primary:hover {
  background: var(--ink);
  color: #fff;
}

/* Footer */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand p {
  color: var(--ink-dim);
  font-size: 0.9rem;
  margin-bottom: 8px;
  line-height: 1.5;
}

.footer-nav h3, .footer-links h3, .footer-legal h3 {
  color: var(--ink);
  margin-bottom: 16px;
  font-size: 1rem;
}

.footer-nav a, .footer-links a {
  display: block;
  color: var(--ink-dim);
  margin-bottom: 10px;
  font-size: 0.9rem;
}

.footer-legal p {
  color: var(--ink-dim);
  font-size: 0.85rem;
  margin-top: 16px;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  z-index: 950;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.3);
}

.cookie-banner p {
  color: var(--ink-dim);
  font-size: 0.9rem;
  margin-right: 24px;
}

.cookie-actions {
  display: flex;
  gap: 12px;
}

/* Legal Pages */
.breadcrumb {
  padding: 24px 0;
  font-size: 0.9rem;
  color: var(--ink-dim);
}

.breadcrumb a {
  color: var(--accent);
}

.legal-page main {
  padding-top: 40px;
}

.legal-intro {
  padding-bottom: 48px;
}

.legal-intro h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.effective-date {
  color: var(--ink-dim);
  margin-bottom: 32px;
}

.legal-content {
  padding-bottom: 96px;
}

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

.legal-section h2 {
  font-size: 1.5rem;
  margin-bottom: 16px;
  color: var(--accent);
}

.legal-section p {
  color: var(--ink-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}

.cookie-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  font-size: 0.9rem;
}

.cookie-table th, .cookie-table td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  text-align: left;
}

.cookie-table th {
  background: var(--bg);
  color: var(--ink);
  font-weight: 600;
}

.cookie-table td {
  color: var(--ink-dim);
}

/* Thank You */
.thank-you-section {
  min-height: calc(100vh - 160px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px 0;
}

.thank-you-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  max-width: 600px;
  text-align: center;
}

.success-icon {
  margin-bottom: 24px;
}

.thank-you-card h1 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.thank-you-card p {
  color: var(--ink-dim);
  margin-bottom: 12px;
  line-height: 1.6;
}

/* About Page Specifics */
.about-hero {
  text-align: center;
  padding: 64px 0 96px;
}

.pill-badge {
  display: inline-block;
  background: var(--surface);
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}

.about-hero h1 {
  font-size: 3rem;
  margin-bottom: 32px;
}

.about-hero-visual {
  max-width: 600px;
  margin: 48px auto 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.about-reversed .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text-reversed h2 {
  font-size: 2rem;
  margin-bottom: 24px;
}

.nested-boxes {
  position: relative;
  height: 400px;
  width: 100%;
}

.box {
  position: absolute;
  border: 2px solid var(--secondary);
  border-radius: var(--radius);
  background: rgba(100, 116, 139, 0.05);
}

.box-1 { top: 20px; left: 20px; width: 80%; height: 80%; }
.box-2 { top: 60px; left: 60px; width: 70%; height: 70%; border-color: var(--accent); }
.box-3 { top: 100px; left: 100px; width: 60%; height: 60%; }

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  margin-top: 48px;
}

.philosophy-item h3 {
  color: var(--accent);
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.about-contact {
  background: var(--surface);
}

input.is-invalid {
  border-color: #ef4444;
  box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.15);
}

/* Fade Up / Reveal */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible, .fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .fade-up {
    opacity: 1;
    transform: none;
  }
}

/* Responsive */
@media (max-width: 768px) {
  #menu-toggle {
    display: flex;
  }
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--surface);
    flex-direction: column;
    padding: 80px 32px 32px;
    gap: 24px;
    transition: right 0.3s ease;
    border-left: 1px solid var(--border);
    box-shadow: var(--shadow);
  }
  .main-nav.open {
    right: 0;
  }
  .hero {
    min-height: auto;
    padding: 48px 0;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .about .container, .about-reversed .container {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .about-visual, .about-hero-visual {
    height: 250px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .cookie-banner {
    flex-direction: column;
    text-align: center;
    gap: 16px;
    padding: 24px;
  }
  .cookie-banner p {
    margin-right: 0;
  }
  .stats-grid, .process-steps, .feature-cards, .benefit-cards, .testimonial-cards {
    grid-template-columns: 1fr;
  }
  .section-title {
    font-size: 2rem;
  }
}