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

/* Design Tokens & Theme Lock */
:root {
  --color-primary: #181e22;
  --color-accent: #b63c2b;
  --color-bg: #ffffff;
  --color-surface: #f4f6f7;
  --color-ink: #111517;
  --color-muted: #5a6870;
  --color-border: #e1e5e8;
  
  --font-display: 'Sora', sans-serif;
  --font-body: 'Manrope', sans-serif;
  
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 12px;
  
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 48px;
  --spacing-xxl: 96px; /* 96px Section-Padding */

  --transition-speed: 0.3s;
  --transition-bezier: cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.6;
  font-size: 1.0625rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button, input, textarea {
  font: inherit;
  color: inherit;
}

ul {
  list-style: none;
}

/* Typography Utility */
.text-display {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.text-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.text-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--color-primary);
}

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

.text-lead {
  font-size: 1.125rem;
  line-height: 1.6;
  max-w: 65ch;
  color: var(--color-muted);
}

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

.text-wrap-balance {
  text-wrap: balance;
}

.text-wrap-pretty {
  text-wrap: pretty;
}

/* Layout Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section-pad {
  padding-top: var(--spacing-xxl);
  padding-bottom: var(--spacing-xxl);
}

.bg-surface {
  background-color: var(--color-surface);
}

/* Header & Nav */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: background-color var(--transition-speed) ease;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  width: 16px;
  height: 16px;
  background-color: var(--color-accent);
  border-radius: var(--radius-sm);
}

.logo-sub {
  font-weight: 400;
  color: var(--color-muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-muted);
  transition: color var(--transition-speed) var(--transition-bezier);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-speed) var(--transition-bezier);
}

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  transform: scaleX(1);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  background-color: var(--color-primary);
  color: var(--color-bg);
  transition: background-color var(--transition-speed) var(--transition-bezier), transform 0.1s ease;
}

.nav-cta:hover {
  background-color: var(--color-accent);
}

.nav-cta:active {
  transform: scale(0.98);
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  width: 40px;
  height: 40px;
  position: relative;
}

.mobile-nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  position: absolute;
  left: 8px;
  transition: transform var(--transition-speed) var(--transition-bezier), top var(--transition-speed) var(--transition-bezier), opacity var(--transition-speed) var(--transition-bezier);
}

.mobile-nav-toggle span:nth-child(1) { top: 14px; }
.mobile-nav-toggle span:nth-child(2) { top: 19px; }
.mobile-nav-toggle span:nth-child(3) { top: 24px; }

.mobile-nav-toggle.open span:nth-child(1) {
  top: 19px;
  transform: rotate(45deg);
}

.mobile-nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle.open span:nth-child(3) {
  top: 19px;
  transform: rotate(-45deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-speed) var(--transition-bezier),
              color var(--transition-speed) var(--transition-bezier),
              border-color var(--transition-speed) var(--transition-bezier),
              transform 0.1s ease;
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-bg);
}

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

.btn-primary:active {
  transform: scale(0.98);
}

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

.btn-secondary:hover {
  border-color: var(--color-primary);
  background-color: rgba(24, 30, 34, 0.02);
}

.btn-secondary:active {
  transform: scale(0.98);
}

/* Hero Section */
.hero {
  padding-top: 96px; /* Cap at 96px (pt-24) to keep content visible in viewport */
  padding-bottom: var(--spacing-xl);
  min-height: calc(100dvh - 72px);
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--spacing-lg);
  max-width: 650px;
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  width: 100%;
}

.hero-image-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-tactile-hover);
  aspect-ratio: 4/5;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--transition-bezier);
}

.hero-image-wrap:hover .hero-image {
  transform: scale(1.03);
}

/* Pain Points / Info Strip */
.pain-points {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.pain-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.pain-icon {
  font-size: 1.5rem;
  color: var(--color-accent);
}

/* Services / Leistungen */
.services-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-xl) auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

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

.service-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  transition: transform var(--transition-speed) var(--transition-bezier),
              box-shadow var(--transition-speed) var(--transition-bezier),
              border-color var(--transition-speed) var(--transition-bezier);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(24, 30, 34, 0.04);
  border-color: var(--color-primary);
}

.service-card-image {
  height: 180px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-surface);
}

.service-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-card-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.service-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: auto;
  transition: color var(--transition-speed) var(--transition-bezier);
}

.service-link svg {
  transition: transform var(--transition-speed) var(--transition-bezier);
}

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

.service-card:hover .service-link svg {
  transform: translateX(4px);
}

/* Trust / Social Proof */
.trust-strip {
  background-color: var(--color-primary);
  color: var(--color-bg);
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.trust-container {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.trust-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.trust-text {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.3;
}

/* Story / Über Uns */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.about-image-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 1/1;
  box-shadow: var(--shadow-tactile-hover);
}

.about-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
}

.about-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  font-size: 0.9375rem;
}

.about-feature-icon {
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 4px;
}

/* Process / Ablauf */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  position: relative;
}

.process-grid::after {
  content: '';
  position: absolute;
  top: 32px;
  left: 10%;
  right: 10%;
  height: 1px;
  background-color: var(--color-border);
  z-index: 1;
}

.process-step {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  position: relative;
  z-index: 2;
}

.process-number {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  transition: border-color var(--transition-speed) var(--transition-bezier),
              background-color var(--transition-speed) var(--transition-bezier),
              color var(--transition-speed) var(--transition-bezier);
}

.process-step:hover .process-number {
  border-color: var(--color-accent);
  background-color: var(--color-accent);
  color: var(--color-bg);
}

.process-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
}

/* Contact / Call To Action */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--spacing-xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-detail-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-detail-text h4 {
  font-family: var(--font-display);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
}

.contact-detail-text p {
  font-weight: 500;
  color: var(--color-primary);
}

.contact-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg) var(--spacing-xl);
  box-shadow: 0 4px 20px rgba(24, 30, 34, 0.02);
}

.form-group {
  margin-bottom: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  transition: border-color var(--transition-speed) var(--transition-bezier),
              background-color var(--transition-speed) var(--transition-bezier),
              box-shadow var(--transition-speed) var(--transition-bezier);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  background-color: var(--color-bg);
  box-shadow: 0 0 0 3px rgba(182, 60, 43, 0.08);
}

.form-control::placeholder {
  color: var(--color-muted);
}

/* Footer */
.footer {
  background-color: var(--color-primary);
  color: var(--color-bg);
  padding-top: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-bg);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.footer-nav-title {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.4);
  margin-bottom: var(--spacing-sm);
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-link {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-speed) var(--transition-bezier);
}

.footer-link:hover {
  color: var(--color-bg);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-legal-links {
  display: flex;
  gap: var(--spacing-md);
}

.footer-legal-link {
  color: rgba(255,255,255,0.5);
  transition: color var(--transition-speed) var(--transition-bezier);
}

.footer-legal-link:hover {
  color: var(--color-bg);
}

/* Scroll Reveal Engine (Intersection Observer classes) */
.js .scroll-reveal {
  opacity: 0;
  transform: translateY(24px);
}

.scroll-reveal {
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger reveals */
.js .stagger-parent > * {
  opacity: 0;
  transform: translateY(16px);
}

.stagger-parent > * {
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.stagger-parent.revealed > * {
  opacity: 1;
  transform: translateY(0);
}

/* CSS transition delays for children in stagger parent */
.stagger-parent.revealed > *:nth-child(1) { transition-delay: 0.05s; }
.stagger-parent.revealed > *:nth-child(2) { transition-delay: 0.12s; }
.stagger-parent.revealed > *:nth-child(3) { transition-delay: 0.19s; }
.stagger-parent.revealed > *:nth-child(4) { transition-delay: 0.26s; }

/* Responsive adjustments */
@media (max-width: 1024px) {
  .hero-grid, .about-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .hero {
    padding-top: 120px;
  }
  
  .hero-image-wrap {
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
    aspect-ratio: 16/10;
  }
  
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
  }
  
  .process-grid::after {
    display: none;
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-xxl: 64px; /* Slightly tighter vertical padding on mobile */
  }
  
  .mobile-nav-toggle {
    display: block;
  }
  
  .nav {
    display: none; /* JS will handle mobile navigation menu */
  }
  
  .nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    height: calc(100vh - 72px);
    background-color: var(--color-bg);
    padding: var(--spacing-xl) var(--spacing-lg);
    gap: var(--spacing-lg);
    z-index: 99;
    border-top: 1px solid var(--color-border);
  }
  
  .nav.open .nav-link {
    font-size: 1.25rem;
    width: 100%;
    text-align: left;
  }
  
  .nav-cta {
    width: 100%;
    padding: 16px;
    font-size: 1rem;
  }
  
  .services-grid, .pain-grid, .process-grid, .about-features {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .footer-nav {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
}

/* Accessibility: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-delay: 0s !important;
    animation-duration: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0s !important;
    scroll-behavior: auto !important;
  }
  
  .scroll-reveal, .stagger-parent > * {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* Screen reader utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Accessibility Focus States */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  background-color: var(--color-primary);
  color: var(--color-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(24, 30, 34, 0.15);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition-speed) var(--transition-bezier),
              visibility var(--transition-speed) var(--transition-bezier),
              transform var(--transition-speed) var(--transition-bezier),
              background-color var(--transition-speed) var(--transition-bezier);
  z-index: 90;
}

.back-to-top:hover {
  background-color: var(--color-accent);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* About Avatar Placeholder */
.about-avatar-placeholder {
  width: 100%;
  aspect-ratio: 1/1;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  padding: 25%;
}