/* ==========================================================================
   DS Group — Main Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. Self-hosted Fonts
   -------------------------------------------------------------------------- */

/* Inter — latin-ext */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300 600;
  font-display: swap;
  src: url('../fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* Inter — latin */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300 600;
  font-display: swap;
  src: url('../fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* JetBrains Mono — latin-ext */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* JetBrains Mono — latin */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* --------------------------------------------------------------------------
   1. Reset & Base
   -------------------------------------------------------------------------- */

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

/* --------------------------------------------------------------------------
   2. Custom Properties
   -------------------------------------------------------------------------- */

:root {
  /* Colors */
  --color-accent: #00ff88;
  --color-bg: #060608;
  --color-bg-card: rgba(0, 255, 136, 0.015);
  --color-border: rgba(0, 255, 136, 0.07);
  --color-border-hover: rgba(0, 255, 136, 0.25);
  --color-text: #b8b8b8;
  --color-text-dim: #787878;
  --color-text-bright: #f0f0f0;

  /* Glows */
  --glow-small: 0 0 20px rgba(0, 255, 136, 0.3);
  --glow-large: 0 0 40px rgba(0, 255, 136, 0.2), 0 0 80px rgba(0, 255, 136, 0.06);

  /* Fonts */
  --font-mono: 'JetBrains Mono', monospace;
  --font-sans: 'Inter', system-ui, sans-serif;
}

/* --------------------------------------------------------------------------
   3. Global Styles
   -------------------------------------------------------------------------- */

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  color-scheme: dark;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

::selection {
  background: rgba(0, 255, 136, 0.2);
  color: var(--color-text-bright);
}

/* --------------------------------------------------------------------------
   4. Background Effects (Grid, Scanlines, Noise)
   -------------------------------------------------------------------------- */

.grid-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 255, 136, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 136, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  will-change: transform;
}

.scanlines {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.02) 2px,
    rgba(0, 0, 0, 0.02) 4px
  );
}

.noise {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px;
}

/* --------------------------------------------------------------------------
   5. Layout
   -------------------------------------------------------------------------- */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
  position: relative;
  z-index: 1;
}

@media (max-width: 768px) {
  .container {
    padding: 0 24px;
  }
}

/* --------------------------------------------------------------------------
   6. Skip Link (Accessibility)
   -------------------------------------------------------------------------- */

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 200;
  padding: 12px 24px;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-decoration: none;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 16px;
}

/* --------------------------------------------------------------------------
   7. Navigation
   -------------------------------------------------------------------------- */

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  background: rgba(6, 6, 8, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: padding 0.3s;
}

nav.scrolled {
  padding: 14px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: var(--glow-small);
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
  }
  50% {
    opacity: 0.5;
    box-shadow: 0 0 8px rgba(0, 255, 136, 0.1);
  }
}

.logo-text {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 5px;
  color: var(--color-text-bright);
}

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--color-text-dim);
  text-decoration: none;
  transition: color 0.3s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width 0.3s;
}

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

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

/* Focus styles for keyboard navigation */
.nav-links a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(0, 255, 136, 0.3);
  border-radius: 4px;
  color: var(--color-accent);
  font-size: 28px;
  cursor: pointer;
  font-family: var(--font-mono);
  min-width: 44px;
  padding: 4px 10px;
  min-height: 44px;
}

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

  .nav-links.open {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(6, 6, 8, 0.98);
    border-top: 1px solid rgba(0, 255, 136, 0.15);
    border-bottom: 1px solid var(--color-border);
    padding: 8px 0;
  }

  .nav-links.open a {
    display: block;
    padding: 14px 48px;
    font-size: 14px;
    letter-spacing: 3px;
    color: var(--color-text);
  }

  .nav-links.open a:hover,
  .nav-links.open a:focus {
    background: rgba(0, 255, 136, 0.05);
    color: var(--color-accent);
  }

  .nav-mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

/* --------------------------------------------------------------------------
   8. Hero Section
   -------------------------------------------------------------------------- */

.hero {
  padding: 180px 0 140px;
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero .container {
  width: 100%;
}

.hero-glow {
  position: absolute;
  top: 60px;
  right: -150px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 255, 136, 0.05) 0%, transparent 65%);
  pointer-events: none;
  animation: float 8s ease-in-out infinite;
}

.hero-glow-secondary {
  position: absolute;
  bottom: -100px;
  left: -200px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 255, 136, 0.03) 0%, transparent 65%);
  pointer-events: none;
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(20px, -20px); }
}

/* Terminal block */
.terminal-block {
  font-family: var(--font-mono);
  font-size: 13px;
  margin-bottom: 36px;
  padding: 20px 24px;
  background: rgba(0, 255, 136, 0.02);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  max-width: 520px;
  opacity: 0;
  animation: fadeIn 0.4s ease forwards 0.3s;
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.terminal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.terminal-dot--red { background: #ff5f57; }
.terminal-dot--yellow { background: #febc2e; }
.terminal-dot--green { background: #28c840; }

.terminal-title {
  font-size: 11px;
  color: var(--color-text-dim);
  letter-spacing: 1px;
  margin-left: 8px;
}

.terminal-line {
  display: flex;
  margin-bottom: 6px;
  line-height: 1.7;
}

.terminal-prompt {
  color: var(--color-accent);
  margin-right: 8px;
  user-select: none;
}

.terminal-text {
  color: var(--color-text);
}

.terminal-text .text-green {
  color: var(--color-accent);
}

.terminal-text .text-comment {
  color: var(--color-text-dim);
}

/* Hero content */
.hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-bright);
  margin-bottom: 28px;
  opacity: 0;
  animation: fadeUp 0.7s ease forwards 0.5s;
}

.hero h1 .text-highlight {
  color: var(--color-accent);
  text-shadow: 0 0 60px rgba(0, 255, 136, 0.15);
}

.hero-subtitle {
  font-size: 17px;
  color: var(--color-text);
  line-height: 1.85;
  max-width: 540px;
  margin-bottom: 48px;
  opacity: 0;
  animation: fadeUp 0.7s ease forwards 0.7s;
}

.hero-subtitle strong {
  color: var(--color-text-bright);
  font-weight: 500;
}

.hero-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.7s ease forwards 0.9s;
}

/* --------------------------------------------------------------------------
   9. Buttons
   -------------------------------------------------------------------------- */

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  border: 1px solid var(--color-accent);
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-decoration: none;
  transition: all 0.3s;
  cursor: pointer;
}

.btn-primary:hover {
  box-shadow: var(--glow-large);
  transform: translateY(-1px);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--color-text-bright);
  outline-offset: 3px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  border: 1px solid var(--color-border);
  background: none;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 2px;
  text-decoration: none;
  transition: all 0.3s;
  cursor: pointer;
}

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

.btn-secondary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.btn-arrow {
  transition: transform 0.3s;
  display: inline-block;
}

.btn-primary:hover .btn-arrow,
.btn-secondary:hover .btn-arrow {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   10. Animations
   -------------------------------------------------------------------------- */

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Reduced motion: disable animations for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   11. Shared Section Styles
   -------------------------------------------------------------------------- */

.section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--color-accent);
  margin-bottom: 16px;
  opacity: 0.85;
}

.section-heading {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 700;
  color: var(--color-text-bright);
  line-height: 1.25;
  margin-bottom: 20px;
}

.section-heading .text-highlight {
  color: var(--color-accent);
}

.section-subtitle {
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: 56px;
}

.section-header {
  margin-bottom: 56px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

/* --------------------------------------------------------------------------
   12. Services Section
   -------------------------------------------------------------------------- */

.services {
  padding: 120px 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--color-border);
}

@media (max-width: 768px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
}

.service-card {
  padding: 48px 40px;
  background: var(--color-bg);
  transition: all 0.4s;
  cursor: default;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at var(--mx, 50%) var(--my, 50%),
    rgba(0, 255, 136, 0.04) 0%,
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

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

.service-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.service-card:hover::after {
  opacity: 0.5;
}

.service-number {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--color-accent);
  margin-bottom: 20px;
  opacity: 0.7;
}

.service-title {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text-bright);
  margin-bottom: 14px;
  transition: text-shadow 0.4s;
}

.service-card:hover .service-title {
  text-shadow: 0 0 30px rgba(0, 255, 136, 0.1);
}

.service-description {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: 8px;
}

.service-example {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-text-dim);
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-example .text-green {
  color: var(--color-accent);
  opacity: 0.7;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  padding: 5px 12px;
  border: 1px solid var(--color-border);
  color: var(--color-text-dim);
  border-radius: 2px;
  transition: all 0.3s;
}

.service-card:hover .tag {
  border-color: rgba(0, 255, 136, 0.15);
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   13. Workflow Section
   -------------------------------------------------------------------------- */

.workflow {
  padding: 120px 0;
  border-top: 1px solid var(--color-border);
}

.workflow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-border);
  counter-reset: step;
}

.workflow-step {
  background: var(--color-bg);
  padding: 32px 28px;
  position: relative;
  transition: background 0.3s;
}

.workflow-step:hover {
  background: var(--color-bg-card);
}

.workflow-step-number {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--color-accent);
  opacity: 0.7;
  margin-bottom: 16px;
}

.workflow-step-label {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-bright);
  margin-bottom: 8px;
}

.workflow-step-detail {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.workflow-caption {
  text-align: center;
  margin-top: 40px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.workflow-caption .text-green {
  color: var(--color-accent);
}

@media (max-width: 768px) {
  .workflow-steps {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   14. Featured Project Section
   -------------------------------------------------------------------------- */

.featured {
  padding: 120px 0;
  border-top: 1px solid var(--color-border);
}

.featured-card {
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  padding: 56px 48px;
  position: relative;
  overflow: hidden;
}

.featured-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0.4;
}

.featured-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--color-accent);
  opacity: 0.8;
  margin-bottom: 24px;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  margin-top: 32px;
}

@media (max-width: 768px) {
  .featured-card {
    padding: 40px 28px;
  }

  .featured-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.featured-column-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.featured-column-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
}

.featured-column-text strong {
  color: var(--color-text-bright);
  font-weight: 500;
}

.featured-metrics {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 4px;
}

.featured-metric-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.featured-metric-value {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-accent);
}

.featured-metric-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   15. ROI Calculator Section
   -------------------------------------------------------------------------- */

.roi-section {
  padding: 120px 0;
  border-top: 1px solid var(--color-border);
}

.roi-calculator {
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

@media (max-width: 768px) {
  .roi-calculator {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 32px 24px;
  }
}

.roi-inputs {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.roi-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--color-text);
  margin-bottom: 10px;
}

.roi-slider-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.roi-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 2px;
  background: var(--color-border);
  outline: none;
}

.roi-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-accent);
  cursor: pointer;
  box-shadow: var(--glow-small);
  transition: transform 0.2s;
}

.roi-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.roi-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-accent);
  cursor: pointer;
  border: none;
  box-shadow: var(--glow-small);
}

.roi-slider:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.roi-value {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-accent);
  min-width: 60px;
  text-align: right;
}

.roi-value span {
  font-size: 12px;
  color: var(--color-text-dim);
  font-weight: 400;
}

.roi-results {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.roi-results-header {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--color-text);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.roi-results-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid rgba(0, 255, 136, 0.03);
}

.roi-results-label {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-text);
}

.roi-results-value {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-accent);
  transition: all 0.3s;
}

.roi-results-value.big {
  font-size: 32px;
}

.roi-cta {
  margin-top: 8px;
  padding: 14px 28px;
  border: 1px solid var(--color-accent);
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.3s;
  text-align: center;
  text-decoration: none;
  display: block;
}

.roi-cta:hover {
  box-shadow: var(--glow-large);
}

.roi-cta:focus-visible {
  outline: 2px solid var(--color-text-bright);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   16. Tech Stack Section
   -------------------------------------------------------------------------- */

.tech-stack {
  padding: 100px 0;
  border-top: 1px solid var(--color-border);
}

.tech-stack-text {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 40px;
  line-height: 1.8;
  max-width: 560px;
}

.tech-stack-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tech-stack-item {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 1px;
  padding: 12px 24px;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: var(--color-bg-card);
  transition: all 0.3s;
  cursor: default;
}

.tech-stack-item:hover {
  border-color: var(--color-border-hover);
  color: var(--color-accent);
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.05);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   17. Process Section
   -------------------------------------------------------------------------- */

.process {
  padding: 120px 0;
  border-top: 1px solid var(--color-border);
}

.process-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 36px;
  padding: 40px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: start;
  transition: all 0.3s;
}

.process-step:hover {
  padding-left: 12px;
}

@media (max-width: 768px) {
  .process-step {
    grid-template-columns: 50px 1fr;
    gap: 20px;
  }
}

.process-number {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 800;
  color: var(--color-accent);
  opacity: 0.15;
  transition: opacity 0.3s;
}

.process-step:hover .process-number {
  opacity: 0.4;
}

.process-title {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-bright);
  margin-bottom: 10px;
}

.process-description {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  max-width: 520px;
}

.process-details {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-text);
  margin-top: 12px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.process-details span::before {
  content: '\2192 ';
  color: var(--color-accent);
  opacity: 0.4;
}

/* --------------------------------------------------------------------------
   18. About Section
   -------------------------------------------------------------------------- */

.about {
  padding: 120px 0;
  border-top: 1px solid var(--color-border);
}

.about-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: start;
}

@media (max-width: 768px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

.about-text {
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text);
}

.about-text p + p {
  margin-top: 20px;
}

.about-text strong {
  color: var(--color-text-bright);
  font-weight: 500;
}

.about-text .text-accent {
  color: var(--color-accent);
}

.about-signature {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 16px;
}

.about-signature-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}

.about-signature-name {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-text-bright);
}

.about-signature-role {
  font-size: 12px;
  color: var(--color-text-dim);
  margin-top: 2px;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.about-stat {
  padding: 28px 24px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  transition: all 0.3s;
}

.about-stat:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
}

.about-stat-value {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 6px;
}

.about-stat-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--color-text);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   19. Blog / Insights Section
   -------------------------------------------------------------------------- */

.blog {
  padding: 120px 0;
  border-top: 1px solid var(--color-border);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border);
}

@media (max-width: 768px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }
}

.blog-card {
  padding: 40px 32px;
  background: var(--color-bg);
  transition: all 0.4s;
  cursor: default;
  position: relative;
  display: flex;
  flex-direction: column;
}

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

.blog-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.blog-card:hover::after {
  opacity: 0.4;
}

.blog-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--color-accent);
  opacity: 0.8;
  margin-bottom: 16px;
}

.blog-title {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text-bright);
  line-height: 1.4;
  margin-bottom: 14px;
  transition: text-shadow 0.4s;
}

.blog-card:hover .blog-title {
  text-shadow: 0 0 30px rgba(0, 255, 136, 0.1);
}

.blog-excerpt {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 24px;
  flex: 1;
}

.blog-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text);
  display: flex;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.blog-read {
  color: var(--color-accent);
  opacity: 0.6;
  transition: opacity 0.3s;
}

.blog-card:hover .blog-read {
  opacity: 1;
}

/* --------------------------------------------------------------------------
   20. Contact Section
   -------------------------------------------------------------------------- */

.contact {
  padding: 120px 0 140px;
  border-top: 1px solid var(--color-border);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-row-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--color-text);
  min-width: 60px;
}

.contact-row-value {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--color-text-bright);
}

.contact-row-value a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}

.contact-row-value a:hover {
  border-bottom-color: var(--color-accent);
}

.contact-row-value a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   21. Footer
   -------------------------------------------------------------------------- */

footer {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

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

.footer-text {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--color-text);
}

.footer-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 2.5s ease-in-out infinite;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.3s;
}

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

.footer-links a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

@media (max-width: 768px) {
  footer {
    padding: 28px 0;
  }

  footer .container {
    flex-direction: column;
    gap: 20px;
    text-align: center;
    align-items: center;
  }

  .footer-text {
    order: 2;
    font-size: 11px;
  }

  .footer-links {
    order: 1;
    gap: 28px;
  }

  .footer-links a {
    font-size: 12px;
    letter-spacing: 2px;
  }
}

/* --------------------------------------------------------------------------
   22. Back to Top Button
   -------------------------------------------------------------------------- */

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  background: rgba(6, 6, 8, 0.9);
  backdrop-filter: blur(8px);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 18px;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s;
  z-index: 90;
  text-decoration: none;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: all;
}

.back-to-top:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--glow-small);
  transform: translateY(-2px);
}

.back-to-top:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   23. Reveal Animation (Scroll)
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   24. Small Mobile Breakpoint (< 480px)
   -------------------------------------------------------------------------- */

@media (max-width: 480px) {
  .hero {
    padding: 100px 0 60px;
  }

  .services,
  .workflow,
  .featured,
  .roi-section,
  .tech-stack,
  .process,
  .about,
  .blog,
  .contact {
    padding: 64px 0;
  }

  .nav-links.open a {
    padding: 14px 24px;
  }

  .service-card {
    padding: 32px 24px;
  }

  .workflow-steps {
    grid-template-columns: 1fr;
  }

  .featured-card {
    padding: 32px 20px;
  }

  .roi-calculator {
    padding: 24px 16px;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
  }

  .legal-page {
    padding: 100px 0 60px;
  }

  .section-subtitle {
    margin-bottom: 36px;
  }

  .section-header {
    margin-bottom: 36px;
  }
}

/* --------------------------------------------------------------------------
   25. Legal Pages (Impressum, Datenschutz)
   -------------------------------------------------------------------------- */

.legal-page {
  padding: 160px 0 120px;
  min-height: 100vh;
}

.legal-page h1 {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 700;
  color: var(--color-text-bright);
  margin-bottom: 48px;
}

.legal-page h2 {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-bright);
  margin-top: 40px;
  margin-bottom: 12px;
}

.legal-page h3 {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-bright);
  margin-top: 24px;
  margin-bottom: 8px;
}

.legal-page p,
.legal-page ul {
  margin-bottom: 16px;
  line-height: 1.8;
  max-width: 640px;
}

.legal-page ul {
  padding-left: 24px;
}

.legal-page li {
  margin-bottom: 8px;
}

.legal-page a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}

.legal-page a:hover {
  border-bottom-color: var(--color-accent);
}

.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--color-text);
  text-decoration: none;
  margin-bottom: 32px;
  transition: color 0.3s;
}

.legal-back:hover {
  color: var(--color-accent);
}