/* ============================================================
   Digitale Prozesslösungen – Haupt-Stylesheet
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ============================================================
   Custom Properties
   ============================================================ */
:root {
  /* Farben */
  --color-primary:        #2a7f6f;
  --color-primary-dark:   #1f5e52;
  --color-primary-light:  #3a9e8b;
  --color-primary-xlight: #e8f5f1;
  --color-primary-pale:   #f0faf7;

  --color-accent:         #1db38e;
  --color-text:           #1a2b28;
  --color-text-muted:     #5a7570;
  --color-text-light:     #8aa49f;
  --color-bg:             #ffffff;
  --color-bg-soft:        #f7faf9;
  --color-border:         #d4e8e3;
  --color-white:          #ffffff;

  /* Abstände */
  --space-xs:   0.25rem;
  --space-sm:   0.5rem;
  --space-md:   1rem;
  --space-lg:   1.5rem;
  --space-xl:   2rem;
  --space-2xl:  3rem;
  --space-3xl:  4rem;
  --space-4xl:  6rem;
  --space-5xl:  8rem;

  /* Typografie */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs:   0.75rem;
  --font-size-sm:   0.875rem;
  --font-size-base: 1rem;
  --font-size-md:   1.125rem;
  --font-size-lg:   1.25rem;
  --font-size-xl:   1.5rem;
  --font-size-2xl:  1.875rem;
  --font-size-3xl:  2.25rem;
  --font-size-4xl:  3rem;
  --font-size-5xl:  3.75rem;

  /* Radien */
  --radius-sm:  0.375rem;
  --radius-md:  0.75rem;
  --radius-lg:  1rem;
  --radius-xl:  1.5rem;
  --radius-full: 9999px;

  /* Schatten */
  --shadow-sm:  0 1px 3px rgba(42, 127, 111, 0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:  0 4px 12px rgba(42, 127, 111, 0.12), 0 2px 6px rgba(0,0,0,0.05);
  --shadow-lg:  0 10px 30px rgba(42, 127, 111, 0.15), 0 4px 12px rgba(0,0,0,0.06);
  --shadow-xl:  0 20px 50px rgba(42, 127, 111, 0.18);

  /* Übergänge */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --container-max: 1200px;
  --nav-height: 72px;
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover {
  color: var(--color-primary-dark);
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ============================================================
   Utility
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-xl);
}

.section-label {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-xlight);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.section-heading {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.section-subheading {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  max-width: 640px;
  line-height: 1.7;
}

.text-center { text-align: center; }
.text-center .section-subheading { margin-inline: auto; }

/* Fade-in Animationen */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.875rem var(--space-xl);
  border-radius: var(--radius-full);
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(42, 127, 111, 0.35);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
  box-shadow: 0 6px 20px rgba(42, 127, 111, 0.45);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-white {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  background: var(--color-primary-xlight);
  color: var(--color-primary-dark);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 1.1rem 2rem;
  font-size: var(--font-size-md);
}

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.nav--scrolled {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border), var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

.nav__logo {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav__logo-mark {
  width: 34px;
  height: 34px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
  font-weight: 800;
  flex-shrink: 0;
}

.nav__logo:hover {
  color: var(--color-primary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-base);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: width var(--transition-base);
}

.nav__link:hover {
  color: var(--color-primary);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__cta {
  font-size: var(--font-size-sm);
  padding: 0.625rem 1.25rem;
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  cursor: pointer;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.nav__hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__hamburger.active span:nth-child(2) {
  opacity: 0;
}
.nav__hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  padding: var(--space-lg) var(--space-xl);
  z-index: 999;
  flex-direction: column;
  gap: var(--space-md);
}

.nav__mobile.open {
  display: flex;
}

.nav__mobile-link {
  font-size: var(--font-size-md);
  font-weight: 500;
  color: var(--color-text);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.nav__mobile-link:last-child {
  border-bottom: none;
}

.nav__mobile-link:hover {
  color: var(--color-primary);
}

.nav__mobile .btn {
  margin-top: var(--space-sm);
  text-align: center;
  justify-content: center;
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
  background-color: var(--color-primary-dark);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, #1a4d43 0%, #2a7f6f 40%, #1f6b5c 70%, #164a3e 100%);
  z-index: 0;
}

.hero__bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.18;
  z-index: 1;
}

/* Hintergrund-Pattern */
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(255,255,255,0.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.06) 0%, transparent 40%);
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
  padding-block: var(--space-4xl);
}

.hero__text {
  color: var(--color-white);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-full);
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--space-xl);
  backdrop-filter: blur(4px);
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  background: #4ade80;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

.hero__headline {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.hero__headline em {
  font-style: normal;
  color: #7fd6c4;
}

.hero__subline {
  font-size: var(--font-size-lg);
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.hero__claim {
  font-size: var(--font-size-base);
  color: rgba(255,255,255,0.6);
  font-style: italic;
  margin-bottom: var(--space-2xl);
  padding-left: var(--space-md);
  border-left: 3px solid rgba(255,255,255,0.3);
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero__trust {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.55);
  margin-top: var(--space-xl);
}

.hero__trust-icon {
  font-size: 1rem;
}

/* Hero Visual */
.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__visual-card {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  width: 100%;
  max-width: 420px;
  box-shadow: 0 25px 60px rgba(0,0,0,0.25);
}

.hero__visual-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.hero__visual-dots {
  display: flex;
  gap: 5px;
}

.hero__visual-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.25);
}

.hero__visual-dots span:first-child  { background: #ff6b6b; }
.hero__visual-dots span:nth-child(2) { background: #ffd93d; }
.hero__visual-dots span:nth-child(3) { background: #6bcb77; }

.hero__visual-title {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: rgba(255,255,255,0.7);
}

.hero__stat-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.hero__stat-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.hero__stat-label {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.7);
}

.hero__stat-bar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.hero__stat-progress {
  width: 80px;
  height: 6px;
  background: rgba(255,255,255,0.15);
  border-radius: 3px;
  overflow: hidden;
}

.hero__stat-fill {
  height: 100%;
  background: linear-gradient(90deg, #4ade80, #22d3a8);
  border-radius: 3px;
  transition: width 1.5s ease 0.5s;
}

.hero__stat-value {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: #4ade80;
}

/* Hero Scroll Hint */
.hero__scroll {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: rgba(255,255,255,0.45);
  font-size: var(--font-size-xs);
}

.hero__scroll-mouse {
  width: 22px;
  height: 34px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 11px;
  position: relative;
}

.hero__scroll-mouse::after {
  content: '';
  position: absolute;
  top: 5px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 6px;
  background: rgba(255,255,255,0.5);
  border-radius: 2px;
  animation: scroll-hint 2s infinite;
}

@keyframes scroll-hint {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  80% { transform: translateX(-50%) translateY(8px); opacity: 0; }
}

/* ============================================================
   Problem Statement
   ============================================================ */
.problem {
  padding-block: var(--space-5xl);
  background: var(--color-bg-soft);
  overflow: hidden;
}

.problem__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.problem__image-wrap {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--color-primary-xlight);
}

.problem__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.problem__image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  background: linear-gradient(135deg, #e8f5f1 0%, #d0ede6 100%);
}

.problem__image-icon {
  font-size: 4rem;
  opacity: 0.4;
}

.problem__image-badge {
  position: absolute;
  bottom: var(--space-lg);
  right: var(--space-lg);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.problem__image-badge-icon {
  font-size: 1.5rem;
}

.problem__image-badge-text {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text);
}

.problem__pain-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.problem__pain-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.problem__pain-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.problem__pain-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.problem__pain-text strong {
  display: block;
  color: var(--color-text);
  font-weight: 600;
  margin-bottom: 2px;
}

/* ============================================================
   Lösung / USPs
   ============================================================ */
.solution {
  padding-block: var(--space-5xl);
  background: var(--color-bg);
}

.solution__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-3xl);
}

.solution__card {
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.solution__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.solution__card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: var(--color-primary-xlight);
}

.solution__card:hover::before {
  opacity: 1;
}

.solution__card-icon {
  width: 52px;
  height: 52px;
  background: var(--color-primary-xlight);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

.solution__card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.solution__card-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================================
   Modularer Baukasten
   ============================================================ */
.modules {
  padding-block: var(--space-5xl);
  background: var(--color-primary-pale);
}

.modules__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-3xl);
}

.modules__item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  transition: all var(--transition-base);
  cursor: default;
}

.modules__item:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.modules__item:hover .modules__item-icon {
  background: rgba(255,255,255,0.2);
}

.modules__item:hover .modules__item-title {
  color: var(--color-white);
}

.modules__item:hover .modules__item-desc {
  color: rgba(255,255,255,0.75);
}

.modules__item-icon {
  width: 52px;
  height: 52px;
  background: var(--color-primary-xlight);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  margin: 0 auto var(--space-md);
  transition: background var(--transition-base);
}

.modules__item-title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  transition: color var(--transition-base);
}

.modules__item-desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
  transition: color var(--transition-base);
}

/* ============================================================
   Branchen
   ============================================================ */
.branches {
  padding-block: var(--space-5xl);
  background: var(--color-bg);
  overflow: hidden;
}

.branches__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: start;
}

.branches__image-wrap {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--color-primary-xlight);
  top: 0;
  position: sticky;
  top: calc(var(--nav-height) + var(--space-xl));
}

.branches__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.branches__image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  background: linear-gradient(160deg, #e8f5f1 0%, #c8e8e0 100%);
}

.branches__cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.branch-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.branch-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.branch-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  cursor: pointer;
  background: var(--color-white);
  transition: background var(--transition-base);
}

.branch-card__header:hover {
  background: var(--color-primary-pale);
}

.branch-card__icon {
  width: 42px;
  height: 42px;
  background: var(--color-primary-xlight);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.branch-card__title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  flex: 1;
}

.branch-card__toggle {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  transition: transform var(--transition-base);
  line-height: 1;
}

.branch-card.open .branch-card__toggle {
  transform: rotate(45deg);
}

.branch-card__body {
  display: none;
  padding: 0 var(--space-lg) var(--space-lg);
  background: var(--color-white);
}

.branch-card.open .branch-card__body {
  display: block;
}

.branch-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.branch-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-xlight);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
}

.branch-tag::before {
  content: '✓';
  font-size: 0.65rem;
}

/* ============================================================
   Referenzprojekt
   ============================================================ */
.reference {
  padding-block: var(--space-5xl);
  background: var(--color-bg-soft);
}

.reference__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
  align-items: stretch;
}

.reference__card {
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  border: 2px solid var(--color-border);
}

.reference__card--before {
  background: var(--color-white);
}

.reference__card--after {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.reference__card-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
}

.reference__card--before .reference__card-label {
  background: #fff1f1;
  color: #c0392b;
}

.reference__card--after .reference__card-label {
  background: rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
}

.reference__card-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

.reference__card--after .reference__card-title {
  color: var(--color-white);
}

.reference__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.reference__list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

.reference__list-item-icon {
  flex-shrink: 0;
  margin-top: 1px;
}

.reference__card--before .reference__list-item {
  color: var(--color-text-muted);
}

.reference__card--after .reference__list-item {
  color: rgba(255,255,255,0.85);
}

.reference__result {
  margin-top: var(--space-3xl);
  padding: var(--space-2xl);
  background: var(--color-primary-xlight);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
}

.reference__result-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.reference__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.reference__metric {
  text-align: center;
}

.reference__metric-value {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.reference__metric-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.reference__demo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  padding: var(--space-md) var(--space-xl);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.reference__demo-link:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-1px);
}

/* ============================================================
   Prozess
   ============================================================ */
.process {
  padding-block: var(--space-5xl);
  background: var(--color-bg);
  overflow: hidden;
}

.process__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.process__image-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--color-primary-xlight);
}

.process__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.process__image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  background: linear-gradient(160deg, #e8f5f1 0%, #c8e8e0 100%);
}

.process__steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.process__step {
  display: flex;
  gap: var(--space-lg);
  position: relative;
}

.process__step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 22px;
  top: 48px;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.process__step-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}

.process__step-number {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-primary-xlight);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: 800;
  color: var(--color-primary);
  position: relative;
  z-index: 1;
  transition: all var(--transition-base);
}

.process__step:hover .process__step-number {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-xlight);
}

.process__step-content {
  padding-bottom: var(--space-2xl);
  flex: 1;
}

.process__step-tag {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-xlight);
  padding: 2px var(--space-sm);
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: var(--space-sm);
}

.process__step-title {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.process__step-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================================
   CTA / Beratung
   ============================================================ */
.cta {
  padding-block: var(--space-5xl);
  background: var(--color-bg-soft);
}

.cta__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.cta__image-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--color-primary-xlight);
}

.cta__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cta__image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  background: linear-gradient(135deg, #e8f5f1 0%, #c8e8e0 100%);
}

.cta__text {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.cta__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin: var(--space-md) 0;
}

.cta__feature {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.cta__feature-check {
  width: 20px;
  height: 20px;
  background: var(--color-primary-xlight);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.625rem;
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.6);
  padding-block: var(--space-2xl);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__copy {
  font-size: var(--font-size-sm);
}

.footer__links {
  display: flex;
  gap: var(--space-xl);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.5);
  transition: color var(--transition-base);
}

.footer__link:hover {
  color: rgba(255,255,255,0.9);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1100px) {
  .modules__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 900px) {
  :root {
    --space-5xl: 5rem;
    --space-4xl: 4rem;
  }

  .nav__links { display: none; }
  .nav__cta.desktop-only { display: none; }
  .nav__hamburger { display: flex; }

  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-3xl);
    padding-block: var(--space-3xl);
  }

  .hero__badge { justify-content: center; }
  .hero__claim { text-align: left; }
  .hero__actions { justify-content: center; }
  .hero__trust { justify-content: center; }

  .hero__visual {
    order: -1;
  }

  .problem__inner,
  .branches__inner,
  .process__inner,
  .cta__inner {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .branches__image-wrap {
    position: relative;
    top: auto;
    aspect-ratio: 16/9;
  }

  .solution__grid {
    grid-template-columns: 1fr;
  }

  .modules__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .reference__inner {
    grid-template-columns: 1fr;
  }

  .reference__metrics {
    grid-template-columns: repeat(3, 1fr);
  }

  .section-heading {
    font-size: var(--font-size-2xl);
  }
}

@media (max-width: 640px) {
  :root {
    --space-4xl: 3rem;
    --space-5xl: 4rem;
  }

  .container {
    padding-inline: var(--space-lg);
  }

  .modules__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .reference__metrics {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .reference__metric-value {
    font-size: var(--font-size-2xl);
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .btn {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .modules__grid {
    grid-template-columns: 1fr 1fr;
  }

  .solution__grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Nav transparent state (über Hero)
   ============================================================ */
.nav--hero .nav__logo {
  color: var(--color-white);
}

.nav--hero .nav__link {
  color: rgba(255,255,255,0.75);
}

.nav--hero .nav__link:hover {
  color: var(--color-white);
}

.nav--hero .nav__link::after {
  background: var(--color-white);
}

.nav--hero .nav__hamburger span {
  background: var(--color-white);
}