/* W3BS Entwicklung — Design System */

:root {
  --color-primary: #2d8659;
  --color-primary-dark: #1f5c3e;
  --color-primary-light: #e8f5ee;
  --color-secondary: #6b21a8;
  --color-secondary-dark: #4c1578;
  --color-accent: #a855f7;
  --color-accent-light: #f3e8ff;
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-text: #1a1a2e;
  --color-muted: #64748b;
  --color-border: #e2e8f0;
  --color-error: #dc2626;
  --color-success: #16a34a;

  --font-sans: "DM Sans", system-ui, -apple-system, sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(26, 26, 46, 0.06);
  --shadow-md: 0 4px 20px rgba(26, 26, 46, 0.08);
  --shadow-lg: 0 8px 40px rgba(107, 33, 168, 0.12);
  --header-height: 72px;
  --max-width: 1120px;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul {
  list-style: none;
}

/* Typography */

h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-secondary);
}

h3 {
  font-size: 1.125rem;
}

p {
  color: var(--color-muted);
}

.lead {
  font-size: 1.125rem;
  line-height: 1.7;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Layout */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3rem;
}

.section-header p {
  margin-top: 0.75rem;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

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

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.03em;
}

.logo-link:hover {
  color: var(--color-text);
}

.logo-link svg {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-desktop a {
  color: var(--color-muted);
  font-size: 0.9375rem;
  font-weight: 500;
}

.nav-desktop a:hover,
.nav-desktop a.active {
  color: var(--color-secondary);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-text);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

.nav-mobile {
  display: none;
  position: fixed;
  inset: var(--header-height) 0 0 0;
  background: var(--color-surface);
  padding: 1.5rem;
  flex-direction: column;
  gap: 0.25rem;
  border-top: 1px solid var(--color-border);
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-mobile.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.nav-mobile a {
  display: block;
  padding: 0.875rem 1rem;
  color: var(--color-text);
  font-weight: 500;
  border-radius: var(--radius-sm);
}

.nav-mobile a:hover,
.nav-mobile a.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

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

  .nav-toggle {
    display: flex;
  }

  .nav-mobile {
    display: flex;
  }
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

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

.btn-outline:hover {
  background: var(--color-accent-light);
  color: var(--color-secondary);
}

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  padding: 0.75rem 0;
}

.btn-ghost:hover {
  color: var(--color-secondary);
}

/* Hero */

.hero {
  padding: 6rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(107, 33, 168, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(45, 134, 89, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  background: var(--color-accent-light);
  color: var(--color-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 999px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin-bottom: 1.25rem;
}

.hero .lead {
  margin-bottom: 2rem;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent-light));
  color: var(--color-secondary);
  margin-bottom: 1.25rem;
  font-size: 1.25rem;
}

.card h3 {
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

/* Product teaser */

.product-teaser {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-accent-light) 100%);
  border-radius: var(--radius-lg);
  padding: 3rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
}

.product-teaser-content h2 {
  margin-bottom: 0.75rem;
}

.product-teaser-content p {
  margin-bottom: 1.5rem;
  max-width: 480px;
}

.product-badge {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  background: var(--color-surface);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}

.product-logo {
  width: 120px;
  height: 120px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  font-size: 2.5rem;
}

@media (max-width: 768px) {
  .product-teaser {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .product-teaser-content p {
    margin-left: auto;
    margin-right: auto;
  }

  .product-logo {
    margin: 0 auto;
  }
}

/* CTA band */

.cta-band {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 3rem;
  text-align: center;
}

.cta-band h2 {
  color: #fff;
  margin-bottom: 0.75rem;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.5rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta-band .btn-primary {
  background: #fff;
  color: var(--color-secondary);
  box-shadow: none;
}

.cta-band .btn-primary:hover {
  background: var(--color-accent-light);
  color: var(--color-secondary-dark);
}

/* Feature grid (Schregali page) */

.feature-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.feature-column {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.feature-column h3 {
  color: var(--color-secondary);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-primary-light);
}

.feature-list li {
  display: flex;
  gap: 0.75rem;
  padding: 0.625rem 0;
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.feature-list li::before {
  content: "✓";
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}

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

/* Problem / Solution */

.problem-solution {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.ps-box {
  padding: 2rem;
  border-radius: var(--radius-lg);
}

.ps-box.problem {
  background: #fef2f2;
  border: 1px solid #fecaca;
}

.ps-box.solution {
  background: var(--color-primary-light);
  border: 1px solid #bbf7d0;
}

.ps-box h3 {
  margin-bottom: 1rem;
}

.ps-box ul li {
  padding: 0.375rem 0;
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.ps-box.problem ul li::before {
  content: "✗ ";
  color: var(--color-error);
}

.ps-box.solution ul li::before {
  content: "✓ ";
  color: var(--color-success);
}

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

/* Tech pills */

.tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.tech-pill {
  padding: 0.5rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}

/* Pricing box */

.pricing-box {
  max-width: 400px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 2px solid var(--color-secondary);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.pricing-box .price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin: 1rem 0;
}

.pricing-box .price-note {
  font-size: 0.875rem;
  color: var(--color-muted);
}

/* Reference */

.reference-box {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  max-width: 560px;
  margin: 0 auto;
}

.reference-box p {
  font-size: 0.9375rem;
}

/* Forms */

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.375rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: 0.9375rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(107, 33, 168, 0.12);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group input.error,
.form-group textarea.error {
  border-color: var(--color-error);
}

.form-checkbox {
  display: flex;
  gap: 0.625rem;
  align-items: flex-start;
}

.form-checkbox input {
  width: auto;
  margin-top: 0.25rem;
  flex-shrink: 0;
}

.form-checkbox label {
  font-weight: 400;
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: 0;
}

.form-checkbox label a {
  text-decoration: underline;
}

.form-error {
  font-size: 0.8125rem;
  color: var(--color-error);
  margin-top: 0.25rem;
}

.form-message {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  font-size: 0.9375rem;
}

.form-message.success {
  background: #f0fdf4;
  color: var(--color-success);
  border: 1px solid #bbf7d0;
}

.form-message.error {
  background: #fef2f2;
  color: var(--color-error);
  border: 1px solid #fecaca;
}

.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

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

/* Legal pages */

.legal-content {
  max-width: 720px;
  margin: 0 auto;
}

.legal-content h1 {
  margin-bottom: 2rem;
}

.legal-content h2 {
  font-size: 1.25rem;
  margin: 2rem 0 0.75rem;
  color: var(--color-text);
}

.legal-content p,
.legal-content li {
  color: var(--color-muted);
  margin-bottom: 0.75rem;
  font-size: 0.9375rem;
}

.legal-content ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.todo {
  background: #fef9c3;
  padding: 0.125rem 0.375rem;
  border-radius: 3px;
  color: #854d0e;
  font-weight: 600;
}

/* Footer */

.site-footer {
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.7);
  padding: 3rem 0 2rem;
  margin-top: 2rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: #fff;
  font-weight: 700;
}

.footer-brand svg {
  width: 28px;
  height: 28px;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.footer-links a:hover {
  color: #fff;
}

.footer-copy {
  width: 100%;
  text-align: center;
  padding-top: 2rem;
  margin-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.8125rem;
}

/* Page hero (subpages) */

.page-hero {
  padding: 4rem 0 3rem;
  text-align: center;
}

.page-hero h1 {
  margin-bottom: 0.75rem;
}

.page-hero .lead {
  max-width: 560px;
  margin: 0 auto;
}

/* Breadcrumbs */

.breadcrumbs {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: 1rem;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.breadcrumbs li:not(:last-child)::after {
  content: "›";
  margin-left: 0.375rem;
  color: var(--color-border);
}

.breadcrumbs a {
  color: var(--color-muted);
}

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

.breadcrumbs [aria-current="page"] {
  color: var(--color-text);
  font-weight: 500;
}

/* Screenshot gallery */

.screenshot-gallery {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
}

.gallery-item {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  overflow: hidden;
  cursor: zoom-in;
  text-align: left;
  transition: box-shadow var(--transition), transform var(--transition);
}

.gallery-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.gallery-item:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  background: var(--color-bg);
}

.gallery-item--mobile img {
  max-height: 520px;
  object-fit: contain;
  object-position: top center;
}

.gallery-caption {
  display: block;
  padding: 0.875rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  border-top: 1px solid var(--color-border);
}

.gallery-item--wide {
  grid-column: span 8;
}

.gallery-item--narrow {
  grid-column: span 4;
}

.gallery-item--half {
  grid-column: span 6;
}

@media (max-width: 900px) {
  .gallery-item--wide,
  .gallery-item--narrow,
  .gallery-item--half {
    grid-column: span 12;
  }

  .gallery-item--mobile {
    max-width: 280px;
    margin: 0 auto;
  }
}

/* Lightbox */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(26, 26, 46, 0.92);
  backdrop-filter: blur(8px);
}

.lightbox[hidden] {
  display: none;
}

.lightbox-inner {
  position: relative;
  max-width: min(1100px, 100%);
  max-height: 100%;
  width: 100%;
}

.lightbox-image {
  width: 100%;
  max-height: calc(100vh - 8rem);
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.lightbox-caption {
  margin-top: 1rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9375rem;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  cursor: pointer;
  transition: background var(--transition);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255, 255, 255, 0.22);
}

.lightbox-close {
  top: -3rem;
  right: 0;
  font-size: 1.5rem;
  line-height: 1;
}

.lightbox-prev,
.lightbox-next {
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
}

.lightbox-prev {
  left: -3.5rem;
}

.lightbox-next {
  right: -3.5rem;
}

@media (max-width: 768px) {
  .lightbox-prev {
    left: 0.5rem;
  }

  .lightbox-next {
    right: 0.5rem;
  }

  .lightbox-close {
    top: 0.5rem;
    right: 0.5rem;
  }
}

/* Animations */

.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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