:root {
  --color-bg: #0b0c10;
  --color-surface: #e8e4d9;
  --color-ink: #1a6b57;
  --color-accent: #c5a059;
  --color-secondary: #8c8b89;
  --color-surface-dim: rgba(232, 228, 217, 0.06);
  --color-ink-dim: rgba(26, 107, 87, 0.15);
  --color-accent-dim: rgba(197, 160, 89, 0.15);
  --font-display: 'Neue Machina', 'Clash Display', 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', 'Fira Code', monospace;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
  --grid-gap: 2rem;
  --content-max: 1440px;
  --content-narrow: 960px;
  --header-height: 80px;
  --stroke-thin: 1px;
  --stroke-thick: 3px;
  --shadow-card: 0 12px 32px rgba(11, 12, 16, 0.4);
  --shadow-focus: 0 0 0 3px var(--color-surface);
  --transition-base: 0.3s var(--ease-out);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border: 0;
  font: inherit;
  color: inherit;
  background: transparent;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-mono);
  background-color: var(--color-bg);
  color: var(--color-surface);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(var(--color-surface-dim) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-surface-dim) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: -1;
  opacity: 0.4;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-surface);
  margin-bottom: var(--space-sm);
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

p { margin-bottom: var(--space-sm); max-width: 65ch; }

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

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

a:focus-visible, button:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: var(--radius-sm);
}

img, svg {
  display: block;
  max-width: 100%;
}

button {
  cursor: pointer;
  font-family: var(--font-mono);
  font-weight: 600;
  background: transparent;
  color: var(--color-surface);
  transition: all var(--transition-base);
}

#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--color-ink);
  width: 0%;
  z-index: 1001;
  transition: width 0.1s linear;
}

.site-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  width: 100%;
  background: rgba(11, 12, 16, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: var(--stroke-thin) solid var(--color-surface-dim);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-md);
  transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-surface);
  text-decoration: none;
}

.logo-mark {
  color: var(--color-accent);
  font-size: 1.5rem;
  line-height: 1;
}

.nav-list {
  display: flex;
  gap: var(--space-md);
  list-style: none;
  align-items: center;
}

.nav-link {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.5rem 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.nav-link:hover::after, .nav-link[aria-current="page"]::after {
  width: 100%;
}

#menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  z-index: 1002;
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--color-surface);
  transition: all var(--transition-base);
}

#menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

#menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

#menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

#main-nav-list {
  background: var(--color-bg);
  position: absolute;
  top: var(--header-height);
  left: 0;
  width: 100%;
  flex-direction: column;
  align-items: flex-start;
  padding: var(--space-md);
  gap: var(--space-sm);
  border-bottom: var(--stroke-thin) solid var(--color-surface-dim);
  display: none;
}

#main-nav-list.is-open {
  display: flex;
}

main {
  padding-top: var(--header-height);
  min-height: 80vh;
}

.hero-section {
  position: relative;
  min-height: 90vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: var(--space-xl) var(--space-md);
  overflow: hidden;
}

.hero-visual {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

#signal-pattern {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.15;
  z-index: -1;
  transition: opacity 0.5s ease;
}

.hero-section:hover #signal-pattern {
  opacity: 0.35;
}

#hero-mask {
  position: absolute;
  inset: 10%;
  background: var(--color-bg);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  transition: clip-path 0.2s linear;
  z-index: 0;
}

.mask-rect {
  fill: var(--color-surface-dim);
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 600px;
  grid-column: 1;
  grid-row: 1;
  align-self: start;
  padding-right: var(--space-md);
}

#hero-heading {
  font-size: clamp(3rem, 6vw, 5.5rem);
  color: var(--color-surface);
  margin-bottom: var(--space-sm);
  line-height: 1;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-secondary);
  margin-bottom: var(--space-md);
  max-width: 50ch;
}

.hero-ctas {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.btn {
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-ink);
  color: var(--color-surface);
  border: 2px solid var(--color-ink);
}

.btn-primary:hover {
  background: transparent;
  color: var(--color-ink);
  box-shadow: 0 0 0 2px var(--color-ink);
}

.btn-secondary {
  background: transparent;
  color: var(--color-surface);
  border: 2px solid var(--color-secondary);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-accent-dim);
}

.content-section {
  padding: var(--space-xl) var(--space-md);
  position: relative;
}

.asymmetric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  max-width: var(--content-max);
  margin: 0 auto;
  position: relative;
}

.asymmetric-grid::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: var(--stroke-thin);
  background: linear-gradient(to bottom, transparent, var(--color-surface-dim) 20%, var(--color-surface-dim) 80%, transparent);
  z-index: 0;
}

.content-island {
  position: relative;
  z-index: 1;
  padding: var(--space-md);
  background: var(--color-bg);
  border: var(--stroke-thin) solid var(--color-surface-dim);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.content-island.left {
  grid-column: 1;
  align-self: start;
  margin-left: 5%;
}

.content-island.right {
  grid-column: 2;
  align-self: end;
  margin-right: 5%;
}

.content-island:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
  border-color: var(--color-ink-dim);
}

#about-heading, #process-heading, #features-heading, #benefits-heading, #testimonials-heading, #faq-heading, #contact-heading, #cta-heading {
  max-width: 800px;
  margin: 0 auto var(--space-lg);
  text-align: center;
}

.section-sub {
  color: var(--color-secondary);
  margin-top: var(--space-xs);
  font-size: 1rem;
}

.connection-line {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 2px;
  background: transparent;
  z-index: 0;
  pointer-events: none;
}

.connection-line path {
  stroke: var(--color-accent);
  stroke-width: 1.5;
  fill: none;
  stroke-dasharray: 8 4;
  stroke-dashoffset: 1000;
  transition: stroke-dashoffset 1.5s var(--ease-out);
}

.connection-line.is-visible path {
  stroke-dashoffset: 0;
}

.steps-grid, .features-grid, .benefits-grid, .metrics-grid, .testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.step-card, .feature-card, .benefit-card, .stat-item, .testimonial-card {
  padding: var(--space-md);
  background: var(--color-surface-dim);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-surface-dim);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.step-card:hover, .feature-card:hover, .benefit-card:hover {
  background: rgba(232, 228, 217, 0.08);
  border-color: var(--color-accent-dim);
}

.step-number {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--color-ink);
  opacity: 0.3;
  margin-bottom: var(--space-sm);
  line-height: 1;
}

.feature-icon, .benefit-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-sm);
  color: var(--color-accent);
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.testimonial-stars {
  color: var(--color-accent);
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
  letter-spacing: 2px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.author-initial {
  width: 40px;
  height: 40px;
  background: var(--color-ink);
  color: var(--color-surface);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-role {
  font-size: 0.75rem;
  color: var(--color-secondary);
  margin-top: 2px;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

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

.faq-question {
  width: 100%;
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: transparent;
}

.faq-question::after {
  content: '+';
  font-size: 1.2rem;
  transition: transform var(--transition-base);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 var(--space-md);
  transition: max-height 0.4s var(--ease-out), padding 0.4s var(--ease-out);
  color: var(--color-secondary);
  line-height: 1.6;
}

.faq-item.is-open .faq-answer {
  max-height: 500px;
  padding: 0 var(--space-md) var(--space-sm);
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form-field {
  position: relative;
}

.form-field input, .form-field textarea {
  width: 100%;
  padding: 1rem;
  background: var(--color-surface-dim);
  border: 1px solid var(--color-surface-dim);
  border-radius: var(--radius-md);
  color: var(--color-surface);
  font-family: var(--font-mono);
  transition: all var(--transition-base);
}

.form-field input:focus, .form-field textarea:focus {
  border-color: var(--color-ink);
  box-shadow: 0 0 0 3px var(--color-ink-dim);
  outline: none;
}

.form-field.invalid input, .form-field.invalid textarea {
  border-color: #d32f2f;
  box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.2);
}

.field-error {
  color: #d32f2f;
  font-size: 0.8rem;
  margin-top: 4px;
  height: 1.2em;
  opacity: 0;
  transition: opacity 0.2s;
}

.form-field.invalid .field-error {
  opacity: 1;
}

.cta-banner {
  background: linear-gradient(135deg, var(--color-ink), #0f3a2f);
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  margin-top: var(--space-xl);
}

.site-footer {
  background: #08090c;
  padding: var(--space-lg) var(--space-md) var(--space-md);
  border-top: var(--stroke-thin) solid var(--color-surface-dim);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-lg);
  max-width: var(--content-max);
  margin: 0 auto;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.footer-links, .footer-resources, .footer-legal {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-links a, .footer-resources a {
  color: var(--color-secondary);
  font-size: 0.9rem;
}

.footer-legal {
  font-size: 0.8rem;
  color: var(--color-secondary);
  opacity: 0.7;
  margin-top: var(--space-md);
  grid-column: 1 / -1;
  text-align: center;
  padding-top: var(--space-md);
  border-top: var(--stroke-thin) solid var(--color-surface-dim);
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: #08090c;
  border-top: var(--stroke-thin) solid var(--color-surface-dim);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  z-index: 999;
  transform: translateY(100%);
  opacity: 0;
  transition: transform 0.4s var(--ease-out), opacity 0.4s var(--ease-out);
}

.cookie-banner.is-visible {
  transform: translateY(0);
  opacity: 1;
}

.cookie-actions {
  display: flex;
  gap: var(--space-sm);
}

.breadcrumb {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.8rem;
  color: var(--color-secondary);
  max-width: var(--content-max);
  margin: 0 auto;
}

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

.breadcrumb span {
  margin: 0 6px;
}

.legal-page {
  max-width: 800px;
  margin: 0 auto var(--space-lg);
  padding: var(--space-md);
}

.legal-effective {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: var(--space-md);
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
  font-size: 0.9rem;
}

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

.legal-table th {
  background: var(--color-surface-dim);
  color: var(--color-surface);
}

.thank-you-section {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.thank-you-card {
  background: var(--color-bg);
  border: 2px solid var(--color-ink);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  max-width: 600px;
  box-shadow: var(--shadow-card);
}

.success-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-md);
  animation: pulse 2s infinite var(--ease-spring);
}

@keyframes pulse {
  0% { transform: scale(1); stroke-opacity: 1; }
  50% { transform: scale(1.05); stroke-opacity: 0.7; }
  100% { transform: scale(1); stroke-opacity: 1; }
}

.site-footer-minimal {
  padding: var(--space-md);
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-secondary);
}

.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.fade-up.visible, .fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  html { font-size: 14px; }
  
  #menu-toggle { display: flex; }
  
  .nav-list { display: none; }
  
  #main-nav-list {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: var(--color-bg);
    overflow-y: auto;
    z-index: 998;
  }
  
  .hero-section {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: var(--space-lg) var(--space-md);
  }
  
  .hero-content {
    grid-column: 1;
    grid-row: 1;
    padding-right: 0;
    margin-bottom: var(--space-md);
  }
  
  .hero-visual {
    height: 300px;
  }
  
  .asymmetric-grid {
    grid-template-columns: 1fr;
  }
  
  .content-island.left, .content-island.right {
    grid-column: 1;
    margin-left: 0;
    margin-right: 0;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .cookie-banner {
    flex-direction: column;
    text-align: center;
  }
  
  .cookie-actions {
    width: 100%;
    justify-content: center;
  }
}

@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;
  }
}