/* =========================================
   Primal Pixel – Design System
   Street & Urban | WCAG 2.2 AA
   ========================================= */

/* --- Layers --- */
@layer reset, base, layout, components, utilities;

/* --- View Transitions --- */
@view-transition {
  navigation: auto;
}

::view-transition-old(root) {
  animation: vt-fade-out 200ms ease-out;
}
::view-transition-new(root) {
  animation: vt-fade-in 300ms ease-in;
}
@keyframes vt-fade-out { to { opacity: 0; } }
@keyframes vt-fade-in { from { opacity: 0; } }

/* =========================================
   RESET
   ========================================= */
@layer reset {
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  html {
    scroll-behavior: smooth;
    scroll-padding-top: 5rem;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
  }
  img, svg, video {
    display: block;
    max-width: 100%;
    height: auto;
  }
  input, button, textarea, select {
    font: inherit;
    color: inherit;
  }
  button {
    cursor: pointer;
    border: none;
    background: none;
  }
  a {
    color: inherit;
    text-decoration-skip-ink: auto;
  }
  ul, ol {
    list-style: none;
  }
  fieldset {
    border: none;
  }
}

/* =========================================
   BASE – Design Tokens
   ========================================= */
@layer base {
  :root {
    /* --- Colors (OKLCH) --- */
    --color-primary: oklch(62% 0.26 340);
    --color-primary-hover: color-mix(in oklch, var(--color-primary), black 15%);
    --color-primary-active: color-mix(in oklch, var(--color-primary), black 25%);
    --color-primary-light: color-mix(in oklch, var(--color-primary), white 80%);
    --color-primary-subtle: color-mix(in oklch, var(--color-primary) 10%, transparent);

    --color-secondary: oklch(85% 0.22 135);
    --color-secondary-hover: color-mix(in oklch, var(--color-secondary), black 15%);
    --color-secondary-active: color-mix(in oklch, var(--color-secondary), black 25%);
    --color-secondary-light: color-mix(in oklch, var(--color-secondary), white 60%);

    --color-accent: oklch(75% 0.19 55);
    --color-accent-hover: color-mix(in oklch, var(--color-accent), black 15%);

    /* Backgrounds */
    --color-bg-primary: oklch(97% 0.005 80);
    --color-bg-secondary: oklch(94% 0.008 80);
    --color-bg-dark: oklch(20% 0.02 260);
    --color-bg-surface: oklch(99% 0.003 80);

    /* Text */
    --color-text-primary: oklch(18% 0.02 260);
    --color-text-secondary: oklch(40% 0.02 260);
    --color-text-muted: oklch(55% 0.015 260);
    --color-text-inverse: oklch(97% 0.005 80);

    /* Borders */
    --color-border: oklch(85% 0.01 80);
    --color-border-strong: oklch(70% 0.015 80);

    /* Functional */
    --color-success: oklch(65% 0.2 145);
    --color-success-light: color-mix(in oklch, var(--color-success), white 80%);
    --color-error: oklch(55% 0.25 25);
    --color-error-light: color-mix(in oklch, var(--color-error), white 80%);

    /* --- Typography --- */
    --font-display: clamp(3rem, 8vw + 1rem, 6rem);
    --font-h1: clamp(2.25rem, 5vw + 0.75rem, 3.75rem);
    --font-h2: clamp(1.75rem, 3.5vw + 0.5rem, 2.5rem);
    --font-h3: clamp(1.25rem, 2vw + 0.5rem, 1.75rem);
    --font-lead: clamp(1.125rem, 1.5vw + 0.25rem, 1.375rem);
    --font-body: clamp(1rem, 0.5vw + 0.875rem, 1.125rem);
    --font-small: clamp(0.8125rem, 0.3vw + 0.75rem, 0.875rem);
    --font-micro: 0.75rem;

    /* --- Spacing (8px base) --- */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 3rem;
    --space-8: 4rem;
    --space-9: 6rem;
    --space-10: 8rem;

    /* --- Layout --- */
    --max-width: 1200px;
    --max-width-wide: 1440px;
    --max-width-text: 75ch;
    --gutter: var(--space-5);
    --margin-mobile: var(--space-4);
    --margin-tablet: var(--space-5);
    --margin-desktop: var(--space-6);

    /* --- Shadows --- */
    --shadow-sm: 0 1px 3px color-mix(in oklch, var(--color-text-primary) 5%, transparent);
    --shadow-md: 0 4px 8px color-mix(in oklch, var(--color-text-primary) 8%, transparent);
    --shadow-lg: 0 10px 20px color-mix(in oklch, var(--color-text-primary) 12%, transparent);
    --shadow-xl: 0 20px 40px color-mix(in oklch, var(--color-text-primary) 16%, transparent);

    /* --- Radii --- */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 8px;
    --radius-full: 9999px;

    /* --- Transitions --- */
    --transition-fast: 150ms ease-out;
    --transition-normal: 250ms ease-out;
    --transition-slow: 350ms ease-out;
  }

  /* --- Body --- */
  body {
    font-family: 'Space Grotesk', system-ui, -apple-system, sans-serif;
    font-size: var(--font-body);
    font-weight: 400;
    line-height: 1.65;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    text-wrap: pretty;
    -webkit-font-smoothing: antialiased;
  }

  /* --- Headlines --- */
  h1, h2, h3, .display {
    font-family: 'Bebas Neue', Impact, 'Arial Black', sans-serif;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    line-height: 1.1;
    text-wrap: balance;
    color: var(--color-text-primary);
  }
  .display { font-size: var(--font-display); line-height: 1.0; letter-spacing: 0.03em; }
  h1 { font-size: var(--font-h1); }
  h2 { font-size: var(--font-h2); }
  h3 { font-size: var(--font-h3); }

  /* --- Text Utilities --- */
  .lead { font-size: var(--font-lead); line-height: 1.55; color: var(--color-text-secondary); }
  .caption, .meta { font-size: var(--font-small); line-height: 1.5; color: var(--color-text-muted); }
  .text-primary-color { color: var(--color-primary); }
  .text-secondary-color { color: var(--color-secondary); }
  .text-accent { color: var(--color-accent); }
  .text-inverse { color: var(--color-text-inverse); }

  /* --- Links --- */
  a:not(.btn):not(.nav-link):not(.card):not(.logo-link) {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition-fast);
  }
  a:not(.btn):not(.nav-link):not(.card):not(.logo-link):hover {
    color: var(--color-primary-hover);
  }
  a:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
  }

  /* --- Lists inside content --- */
  .content-text ul,
  .content-text ol {
    padding-left: var(--space-5);
    margin-block: var(--space-3);
  }
  .content-text ul { list-style: disc; }
  .content-text ol { list-style: decimal; }
  .content-text li { margin-block-end: var(--space-2); }
  .content-text li::marker { color: var(--color-primary); }

  .content-text p + p { margin-block-start: var(--space-4); }
  .content-text h2 { margin-block: var(--space-7) var(--space-4); }
  .content-text h3 { margin-block: var(--space-5) var(--space-3); }
}

/* =========================================
   LAYOUT
   ========================================= */
@layer layout {
  .container {
    width: 100%;
    max-width: var(--max-width);
    margin-inline: auto;
    padding-inline: var(--margin-mobile);
  }
  @media (min-width: 768px) {
    .container { padding-inline: var(--margin-tablet); }
  }
  @media (min-width: 1024px) {
    .container { padding-inline: var(--margin-desktop); }
  }

  .container--wide { max-width: var(--max-width-wide); }
  .container--text { max-width: var(--max-width-text); }

  .section {
    padding-block: var(--space-7);
  }
  @media (min-width: 768px) {
    .section { padding-block: var(--space-8); }
  }
  @media (min-width: 1024px) {
    .section { padding-block: var(--space-9); }
  }

  .section--alt { background-color: var(--color-bg-secondary); }
  .section--dark {
    background-color: var(--color-bg-dark);
    color: var(--color-text-inverse);
  }

  .grid {
    display: grid;
    gap: var(--gutter);
    grid-template-columns: 1fr;
  }
  @media (min-width: 640px) {
    .grid--2 { grid-template-columns: repeat(2, 1fr); }
    .grid--3 { grid-template-columns: repeat(2, 1fr); }
    .grid--4 { grid-template-columns: repeat(2, 1fr); }
  }
  @media (min-width: 1024px) {
    .grid--3 { grid-template-columns: repeat(3, 1fr); }
    .grid--4 { grid-template-columns: repeat(4, 1fr); }
  }

  .two-col {
    display: grid;
    gap: var(--gutter);
    grid-template-columns: 1fr;
  }
  @media (min-width: 768px) {
    .two-col { grid-template-columns: 3fr 2fr; }
    .two-col--reverse { grid-template-columns: 2fr 3fr; }
  }
}

/* =========================================
   COMPONENTS
   ========================================= */
@layer components {

  /* --- Skip Link --- */
  .skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-4);
    padding: var(--space-2) var(--space-4);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    font-weight: 600;
    z-index: 200;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    text-decoration: none;
  }
  .skip-link:focus {
    top: 0;
  }

  /* --- Navigation Header --- */
  .nav-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: color-mix(in oklch, var(--color-bg-primary) 95%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding-block: var(--space-3);
    transition: padding var(--transition-normal);
  }
  .nav-header--scrolled {
    padding-block: var(--space-2);
  }
  .nav-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
  }

  .logo-link {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    gap: var(--space-2);
    font-family: 'Bebas Neue', Impact, sans-serif;
    font-size: 1.5rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-primary);
    white-space: nowrap;
  }
  .logo-link:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 4px;
  }
  .logo-link .logo-mark {
    color: var(--color-primary);
    font-weight: 700;
  }

  .nav-desktop {
    display: none;
    align-items: center;
    gap: var(--space-5);
  }
  @media (min-width: 768px) {
    .nav-desktop { display: flex; }
  }

  .nav-link {
    font-weight: 500;
    color: var(--color-text-primary);
    text-decoration: none;
    position: relative;
    padding-block: var(--space-2);
    white-space: nowrap;
  }
  .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--color-primary);
    transition: width var(--transition-normal);
  }
  .nav-link:hover::after,
  .nav-link[aria-current="page"]::after {
    width: 100%;
  }
  .nav-link[aria-current="page"] {
    color: var(--color-primary);
  }
  .nav-link:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 4px;
  }

  /* Hamburger */
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-primary);
  }
  @media (min-width: 768px) {
    .nav-toggle { display: none; }
  }
  .nav-toggle:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
  }
  .nav-toggle svg {
    width: 28px;
    height: 28px;
  }

  /* Mobile Navigation Overlay */
  .mobile-nav {
    position: fixed;
    inset: 0;
    z-index: 150;
    background: var(--color-bg-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
    transition: opacity var(--transition-normal);
  }
  .mobile-nav[aria-hidden="true"] {
    display: none;
  }
  .mobile-nav__close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-inverse);
    background: none;
    border: none;
    cursor: pointer;
  }
  .mobile-nav__close:focus-visible {
    outline: 3px solid var(--color-text-inverse);
    outline-offset: 2px;
  }
  .mobile-nav__close svg {
    width: 32px;
    height: 32px;
  }
  .mobile-nav__link {
    font-family: 'Bebas Neue', Impact, sans-serif;
    font-size: var(--font-h1);
    text-transform: uppercase;
    color: var(--color-text-inverse);
    text-decoration: none;
    letter-spacing: 0.03em;
    transition: color var(--transition-fast);
  }
  .mobile-nav__link:hover,
  .mobile-nav__link:focus-visible {
    color: var(--color-primary);
  }
  .mobile-nav__link:focus-visible {
    outline: 3px solid var(--color-text-inverse);
    outline-offset: 4px;
  }
  .mobile-nav__link--cta {
    color: var(--color-secondary);
  }

  /* --- Buttons --- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    min-height: 48px;
    border-radius: var(--radius-md);
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-size: var(--font-body);
    font-weight: 600;
    letter-spacing: 0.01em;
    text-decoration: none;
    cursor: pointer;
    transition: all 200ms ease-out;
    border: 2px solid transparent;
  }
  .btn:focus-visible {
    outline: 3px solid var(--color-secondary);
    outline-offset: 2px;
  }

  .btn-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: var(--color-primary);
  }
  .btn-primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px color-mix(in oklch, var(--color-primary) 40%, transparent);
  }
  .btn-primary:active {
    background: var(--color-primary-active);
    transform: translateY(0);
    box-shadow: none;
  }

  .btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
  }
  .btn-secondary:hover {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    transform: translateY(-2px);
  }
  .btn-secondary:active {
    background: var(--color-primary-active);
    color: var(--color-text-inverse);
    transform: translateY(0);
  }

  .btn-ghost {
    background: transparent;
    color: var(--color-text-primary);
    border-color: transparent;
  }
  .btn-ghost:hover {
    background: color-mix(in oklch, var(--color-text-primary) 8%, transparent);
    color: var(--color-primary);
  }

  .btn-inverse {
    background: var(--color-secondary);
    color: var(--color-bg-dark);
    border-color: var(--color-secondary);
  }
  .btn-inverse:hover {
    background: var(--color-secondary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px color-mix(in oklch, var(--color-secondary) 40%, transparent);
  }
  .btn-inverse:focus-visible {
    outline-color: var(--color-text-inverse);
  }

  .btn--full { width: 100%; }

  /* --- Cards --- */
  .card {
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: grid;
    grid-template-rows: auto 1fr auto;
    text-decoration: none;
    color: inherit;
  }
  .card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
  }
  .card:focus-within {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
  }
  .card__image {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    background: var(--color-bg-secondary);
  }
  .card__body {
    padding: var(--space-4) var(--space-5);
  }
  .card__title {
    font-family: 'Bebas Neue', Impact, sans-serif;
    font-size: var(--font-h3);
    text-transform: uppercase;
    margin-block-end: var(--space-2);
  }
  .card__text {
    color: var(--color-text-secondary);
    line-height: 1.6;
  }
  .card__footer {
    padding: var(--space-3) var(--space-5) var(--space-5);
  }
  .card__link {
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
  }
  .card__link::after {
    content: '\2192';
    transition: transform var(--transition-fast);
  }
  .card__link:hover::after {
    transform: translateX(4px);
  }

  /* Use-Case Card (dark) */
  .card--use-case {
    background: var(--color-bg-dark);
    color: var(--color-text-inverse);
    border: none;
    position: relative;
  }
  .card--use-case::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, color-mix(in oklch, var(--color-primary) 15%, transparent), transparent 60%);
    pointer-events: none;
    z-index: 1;
  }
  .card--use-case .card__body,
  .card--use-case .card__footer {
    position: relative;
    z-index: 2;
  }
  .card--use-case .card__title {
    color: var(--color-secondary);
  }
  .card--use-case .card__text {
    color: color-mix(in oklch, var(--color-text-inverse), transparent 20%);
  }
  .card--use-case:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px color-mix(in oklch, var(--color-primary) 30%, transparent);
  }
  .card--use-case .card__link {
    color: var(--color-secondary);
  }

  /* --- Hero --- */
  .hero {
    padding-block: var(--space-9) var(--space-8);
    position: relative;
    overflow: hidden;
  }
  .hero--home {
    padding-block: var(--space-10);
  }
  .hero .display,
  .hero h1 {
    margin-block-end: var(--space-4);
  }
  .hero .lead {
    margin-block-end: var(--space-6);
    max-width: var(--max-width-text);
  }
  .hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
  }

  /* Hero small (subpages) */
  .hero--small {
    padding-block: var(--space-7) var(--space-6);
  }

  /* --- Breadcrumb --- */
  .breadcrumb {
    margin-block-end: var(--space-4);
  }
  .breadcrumb__list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-small);
    color: var(--color-text-muted);
  }
  .breadcrumb__item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
  }
  .breadcrumb__item + .breadcrumb__item::before {
    content: '>';
    color: var(--color-text-muted);
  }
  .breadcrumb__link {
    color: var(--color-text-muted);
    text-decoration: none;
  }
  .breadcrumb__link:hover {
    color: var(--color-primary);
  }
  .breadcrumb__current {
    color: var(--color-text-primary);
  }

  /* --- USP Cards (no border, icon driven) --- */
  .usp-card {
    text-align: center;
    padding: var(--space-5);
  }
  @media (min-width: 768px) {
    .usp-card { text-align: left; }
  }
  .usp-card__icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    margin-block-end: var(--space-3);
  }
  @media (min-width: 768px) {
    .usp-card__icon { margin-inline: 0; }
  }
  .usp-card h3 {
    margin-block-end: var(--space-2);
  }

  /* --- Service Tiles (Startseite) --- */
  .service-tile {
    padding: var(--space-5);
    border-left: 3px solid transparent;
    transition: border-color var(--transition-normal), transform var(--transition-normal);
  }
  .service-tile:hover {
    border-left-color: var(--color-primary);
    transform: translateY(-2px);
  }
  .service-tile__icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
    margin-block-end: var(--space-3);
  }
  .service-tile h3 {
    margin-block-end: var(--space-2);
  }

  /* --- Process Steps --- */
  .process {
    display: grid;
    gap: var(--space-6);
  }
  @media (min-width: 768px) {
    .process {
      grid-template-columns: repeat(4, 1fr);
      gap: var(--space-5);
    }
  }
  .process__step {
    text-align: center;
    position: relative;
  }
  .process__number {
    font-family: 'Bebas Neue', Impact, sans-serif;
    font-size: var(--font-display);
    color: var(--color-accent);
    line-height: 1;
    margin-block-end: var(--space-2);
    letter-spacing: 0.03em;
  }
  .process__step h3 {
    margin-block-end: var(--space-2);
  }
  /* Connecting line between steps on desktop */
  @media (min-width: 768px) {
    .process__step:not(:last-child)::after {
      content: '';
      position: absolute;
      top: 30px;
      right: calc(var(--gutter) / -2 - 20px);
      width: 40px;
      height: 2px;
      border-top: 2px dashed var(--color-border-strong);
    }
  }

  /* --- CTA Banner --- */
  .cta-banner {
    background: var(--color-bg-dark);
    color: var(--color-text-inverse);
    text-align: center;
    padding-block: var(--space-9);
    position: relative;
    overflow: hidden;
  }
  .cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      radial-gradient(circle at 20% 50%, color-mix(in oklch, var(--color-primary) 12%, transparent), transparent 50%),
      radial-gradient(circle at 80% 30%, color-mix(in oklch, var(--color-secondary) 8%, transparent), transparent 50%);
    pointer-events: none;
  }
  .cta-banner .container {
    position: relative;
    z-index: 1;
  }
  .cta-banner h2 {
    color: var(--color-text-inverse);
    margin-block-end: var(--space-4);
  }
  .cta-banner p {
    color: color-mix(in oklch, var(--color-text-inverse), transparent 20%);
    margin-block-end: var(--space-6);
    max-width: var(--max-width-text);
    margin-inline: auto;
  }

  /* --- Forms --- */
  .form-group {
    margin-block-end: var(--space-4);
  }
  .form-label {
    display: block;
    font-weight: 500;
    margin-block-end: var(--space-2);
  }
  .form-label .required {
    color: var(--color-text-muted);
    font-weight: 400;
    font-size: var(--font-small);
  }

  .form-input,
  .form-textarea,
  .form-select {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-size: var(--font-body);
    padding: var(--space-3) var(--space-4);
    min-height: 48px;
    background: var(--color-bg-surface);
    border: 2px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    width: 100%;
    transition: border-color 200ms ease-out, box-shadow 200ms ease-out;
  }
  .form-input:hover,
  .form-textarea:hover,
  .form-select:hover {
    border-color: var(--color-text-secondary);
  }
  .form-input:focus,
  .form-textarea:focus,
  .form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
  }
  .form-input[aria-invalid="true"],
  .form-textarea[aria-invalid="true"],
  .form-select[aria-invalid="true"] {
    border-color: var(--color-error);
  }
  .form-input[aria-invalid="true"]:focus,
  .form-textarea[aria-invalid="true"]:focus {
    box-shadow: 0 0 0 3px var(--color-error-light);
  }

  .form-textarea {
    min-height: 120px;
    resize: vertical;
  }

  .form-error {
    font-size: var(--font-small);
    color: var(--color-error);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-block-start: var(--space-1);
    min-height: 1.5em;
  }

  .form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
  }
  .form-checkbox input[type="checkbox"] {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    margin-top: 2px;
    accent-color: var(--color-primary);
  }

  .form-success {
    background: var(--color-success-light);
    border-left: 4px solid var(--color-success);
    padding: var(--space-5);
    border-radius: var(--radius-md);
    font-weight: 500;
  }

  /* --- Contact Info Box --- */
  .contact-info {
    background: var(--color-bg-secondary);
    padding: var(--space-5);
    border-radius: var(--radius-md);
  }
  .contact-info h2 {
    margin-block-end: var(--space-4);
  }
  .contact-info__item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-block-end: var(--space-3);
  }
  .contact-info__item a {
    font-weight: 500;
  }
  .contact-info__note {
    margin-block-start: var(--space-4);
    padding-block-start: var(--space-4);
    border-top: 1px solid var(--color-border);
    font-size: var(--font-small);
    color: var(--color-text-muted);
  }

  /* --- Leistungen blocks --- */
  .service-block {
    padding-block: var(--space-7);
    border-bottom: 1px solid var(--color-border);
  }
  .service-block:last-of-type {
    border-bottom: none;
  }
  .service-block h2 {
    margin-block-end: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }
  .service-block__icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
    flex-shrink: 0;
  }
  .service-block__text {
    max-width: var(--max-width-text);
  }
  .service-block__text p + p {
    margin-block-start: var(--space-4);
  }
  .service-block__list {
    margin-block-start: var(--space-5);
    padding-left: var(--space-5);
    list-style: none;
  }
  .service-block__list li {
    position: relative;
    padding-left: var(--space-5);
    margin-block-end: var(--space-2);
  }
  .service-block__list li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
  }

  /* --- Use-Case Detail Page --- */
  .info-box {
    background: var(--color-primary-subtle);
    border-left: 4px solid var(--color-primary);
    padding: var(--space-4) var(--space-5);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-block-start: var(--space-4);
  }
  .info-box strong {
    display: block;
    margin-block-end: var(--space-1);
  }

  .site-structure {
    list-style: none;
    counter-reset: site-counter;
  }
  .site-structure li {
    counter-increment: site-counter;
    position: relative;
    padding-left: var(--space-7);
    margin-block-end: var(--space-4);
  }
  .site-structure li::before {
    content: counter(site-counter);
    position: absolute;
    left: 0;
    font-family: 'Bebas Neue', Impact, sans-serif;
    font-size: var(--font-h2);
    color: var(--color-accent);
    line-height: 1;
  }
  .site-structure li strong {
    display: block;
    font-weight: 600;
  }

  /* --- Über uns: Arbeitsweise Columns --- */
  .work-columns {
    display: grid;
    gap: var(--gutter);
    grid-template-columns: 1fr;
  }
  @media (min-width: 768px) {
    .work-columns {
      grid-template-columns: 1fr 1fr;
    }
  }
  .work-column {
    padding: var(--space-5);
  }
  @media (min-width: 768px) {
    .work-column:first-child {
      border-right: 2px solid var(--color-primary);
    }
  }
  .work-column h3 {
    margin-block-end: var(--space-3);
  }
  .work-column ul {
    list-style: none;
    padding: 0;
  }
  .work-column li {
    position: relative;
    padding-left: var(--space-5);
    margin-block-end: var(--space-2);
  }
  .work-column li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
  }

  /* --- Values Cards --- */
  .value-card {
    background: var(--color-bg-surface);
    padding: var(--space-5);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-md);
  }
  .value-card h3 {
    margin-block-end: var(--space-2);
  }

  /* --- Badge --- */
  .badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-sm);
    background: var(--color-primary-subtle);
    color: var(--color-primary);
    font-size: var(--font-micro);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }
  .badge--category {
    background: var(--color-accent);
    color: var(--color-bg-dark);
  }

  /* --- Blog Cards --- */
  .blog-card .card__meta {
    font-size: var(--font-small);
    color: var(--color-text-muted);
    margin-block-end: var(--space-2);
  }
  .blog-card .card__title a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
  }
  .blog-card:hover .card__title a {
    color: var(--color-primary);
  }

  /* --- Blog empty state --- */
  .blog-empty {
    text-align: center;
    padding-block: var(--space-8);
  }
  .blog-empty h2 {
    margin-block-end: var(--space-4);
  }

  /* --- Footer --- */
  .site-footer {
    background: var(--color-bg-dark);
    color: var(--color-text-inverse);
    padding-block: var(--space-8) var(--space-5);
  }
  .footer-grid {
    display: grid;
    gap: var(--space-6);
    grid-template-columns: 1fr;
    margin-block-end: var(--space-6);
  }
  @media (min-width: 768px) {
    .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
  }

  .footer-brand .logo-link {
    color: var(--color-text-inverse);
    margin-block-end: var(--space-3);
  }
  .footer-brand__claim {
    color: var(--color-text-muted);
    font-size: var(--font-small);
    margin-block-start: var(--space-2);
  }

  .footer-nav h3,
  .footer-contact h3 {
    color: var(--color-text-inverse);
    margin-block-end: var(--space-3);
    font-size: var(--font-h3);
  }
  .footer-nav a,
  .footer-contact a {
    color: color-mix(in oklch, var(--color-text-inverse), transparent 30%);
    text-decoration: none;
    display: block;
    padding-block: var(--space-1);
    transition: color var(--transition-fast);
  }
  .footer-nav a:hover,
  .footer-contact a:hover {
    color: var(--color-primary);
  }
  .footer-nav a:focus-visible,
  .footer-contact a:focus-visible {
    outline: 3px solid var(--color-text-inverse);
    outline-offset: 2px;
  }

  .footer-bottom {
    border-top: 1px solid color-mix(in oklch, var(--color-text-inverse), transparent 80%);
    padding-block-start: var(--space-5);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--space-3);
    font-size: var(--font-small);
    color: var(--color-text-muted);
  }
  .footer-legal {
    display: flex;
    gap: var(--space-4);
  }
  .footer-legal a {
    color: var(--color-text-muted);
    text-decoration: none;
  }
  .footer-legal a:hover {
    color: var(--color-text-inverse);
  }

  /* --- Cookie Banner --- */
  .cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 300;
    background: var(--color-bg-dark);
    color: var(--color-text-inverse);
    padding: var(--space-5) var(--margin-mobile);
    border-top: 3px solid var(--color-primary);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    animation: slide-up 300ms ease-out;
  }
  @media (min-width: 768px) {
    .cookie-banner {
      flex-direction: row;
      align-items: center;
      justify-content: space-between;
      padding-inline: var(--margin-tablet);
    }
  }
  .cookie-banner__text {
    flex: 1;
    font-size: var(--font-small);
  }
  .cookie-banner__text a {
    color: var(--color-primary);
  }
  .cookie-banner__actions {
    display: flex;
    gap: var(--space-3);
    flex-shrink: 0;
  }

  @keyframes slide-up {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
  }

  /* --- 404 --- */
  .error-page {
    text-align: center;
    padding-block: var(--space-10);
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
  .error-page h1 {
    font-size: var(--font-display);
    margin-block-end: var(--space-4);
  }
  .error-page p {
    margin-block-end: var(--space-6);
    max-width: var(--max-width-text);
    color: var(--color-text-secondary);
  }
  .error-page__links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
  }

  /* --- Transformation (Vorher/Nachher) --- */
  .transformation {
    display: grid;
    gap: var(--space-5);
    grid-template-columns: 1fr;
    align-items: stretch;
  }
  @media (min-width: 768px) {
    .transformation {
      grid-template-columns: 1fr auto 1fr;
      gap: var(--space-6);
    }
  }
  .transformation__before,
  .transformation__after {
    padding: var(--space-5);
    border-radius: var(--radius-md);
    position: relative;
  }
  .transformation__before {
    background: color-mix(in oklch, var(--color-error) 8%, var(--color-bg-surface));
    border: 2px solid color-mix(in oklch, var(--color-error) 20%, transparent);
  }
  .transformation__after {
    background: color-mix(in oklch, var(--color-success) 8%, var(--color-bg-surface));
    border: 2px solid color-mix(in oklch, var(--color-success) 20%, transparent);
  }
  .transformation__label {
    display: inline-block;
    font-family: 'Bebas Neue', Impact, sans-serif;
    font-size: var(--font-h3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-block-end: var(--space-3);
  }
  .transformation__label--before {
    color: var(--color-error);
  }
  .transformation__label--after {
    color: var(--color-success);
  }
  .transformation__arrow {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .transformation__arrow svg {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
    transform: rotate(90deg);
  }
  @media (min-width: 768px) {
    .transformation__arrow svg {
      transform: none;
      width: 40px;
      height: 40px;
    }
  }

  /* --- Story Quote (Blockquote) --- */
  .story-quote {
    border-left: 4px solid var(--color-primary);
    padding: var(--space-5) var(--space-6);
    margin-block: var(--space-6);
    position: relative;
  }
  .story-quote::before {
    content: '\201C';
    position: absolute;
    top: -0.1em;
    left: var(--space-3);
    font-family: 'Bebas Neue', Impact, sans-serif;
    font-size: clamp(3rem, 6vw, 5rem);
    color: var(--color-primary);
    line-height: 1;
    opacity: 0.3;
  }
  .story-quote p {
    font-size: var(--font-lead);
    font-weight: 500;
    font-style: italic;
    color: var(--color-text-primary);
    line-height: 1.5;
  }

  /* --- Staggered Card Animations --- */
  .grid > *:nth-child(1) { --stagger-delay: 0ms; }
  .grid > *:nth-child(2) { --stagger-delay: 80ms; }
  .grid > *:nth-child(3) { --stagger-delay: 160ms; }
  .grid > *:nth-child(4) { --stagger-delay: 240ms; }
  .grid > *:nth-child(5) { --stagger-delay: 320ms; }
  .grid > *:nth-child(6) { --stagger-delay: 400ms; }
  .grid > .card,
  .grid > .service-tile,
  .grid > .value-card,
  .grid > .usp-card {
    opacity: 0;
    transform: translateY(20px);
    animation: card-reveal 400ms ease-out both;
    animation-timeline: view();
    animation-range: entry 10% entry 60%;
    animation-delay: var(--stagger-delay, 0ms);
  }
  @keyframes card-reveal {
    to { opacity: 1; transform: translateY(0); }
  }
  /* Fallback for browsers without scroll-driven animations */
  .is-visible > .card,
  .is-visible > .service-tile,
  .is-visible > .value-card,
  .is-visible > .usp-card {
    opacity: 1;
    transform: none;
  }

  /* --- Section Headers --- */
  .section__header {
    margin-block-end: var(--space-6);
  }
  .section__header h2 {
    margin-block-end: var(--space-3);
  }

  /* --- Arrow Link --- */
  .arrow-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
    margin-block-start: var(--space-4);
  }
  .arrow-link::after {
    content: '\2192';
    transition: transform var(--transition-fast);
  }
  .arrow-link:hover::after {
    transform: translateX(4px);
  }
}

/* =========================================
   ANIMATIONS
   ========================================= */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  animation: reveal linear both;
  animation-timeline: view();
  animation-range: entry 0% entry 100%;
}
.slide-in-left {
  opacity: 0;
  transform: translateX(-40px);
  animation: slide-right linear both;
  animation-timeline: view();
  animation-range: entry 10% entry 80%;
}
.process-number {
  transform: scale(0.7);
  opacity: 0.3;
  animation: scale-up linear both;
  animation-timeline: view();
  animation-range: entry 20% entry 90%;
}

@keyframes reveal {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slide-right {
  to { opacity: 1; transform: translateX(0); }
}
@keyframes scale-up {
  to { transform: scale(1); opacity: 1; }
}

/* Fallback for browsers without scroll-driven animations */
.is-visible.fade-in-up,
.is-visible.slide-in-left {
  opacity: 1;
  transform: none;
}
.is-visible.process-number {
  opacity: 1;
  transform: scale(1);
}

/* =========================================
   UTILITIES
   ========================================= */
@layer utilities {
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
  .text-center { text-align: center; }
}

/* =========================================
   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-in-up,
  .slide-in-left,
  .process-number {
    opacity: 1;
    transform: none;
  }
  .grid > .card,
  .grid > .service-tile,
  .grid > .value-card,
  .grid > .usp-card {
    opacity: 1;
    transform: none;
  }
}