/* ===========================
   CSS Custom Properties
   =========================== */
:root {
  --color-primary: #1b3d6e;
  --color-primary-dark: #122a4e;
  --color-accent: #f97316;
  --color-accent-dark: #ea6c0a;
  --color-dark: #0f172a;
  --color-dark-2: #1e293b;
  --color-text: #334155;
  --color-text-light: #64748b;
  --color-bg: #f8fafc;
  --color-white: #ffffff;
  --color-border: #e2e8f0;
  --color-success: #16a34a;
  --color-error: #dc2626;

  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.14);
  --transition: 0.25s ease;
  --max-width: 1200px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-white);
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
ul { list-style: none; }
address { font-style: normal; }
button { cursor: pointer; font-family: var(--font); border: none; background: none; }
input, select, textarea { font-family: var(--font); }

/* ===========================
   SVG Icons
   =========================== */
.icon {
  display: inline-block;
  width: 1.1em;
  height: 1.1em;
  vertical-align: -0.15em;
  flex-shrink: 0;
}
.icon-sm { width: 0.95em; height: 0.95em; }
.icon-lg { width: 1.5em; height: 1.5em; }

/* Spinner-Animation für Lade-Zustand */
.icon-spin { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===========================
   Utility
   =========================== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 4rem 0;
}

.section-dark {
  background: var(--color-dark);
  color: var(--color-white);
}

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

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-dark);
  margin-bottom: 1rem;
}

.section-dark .section-title { color: var(--color-white); }

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-light);
  max-width: 540px;
  margin: 0 auto;
}

.section-dark .section-subtitle { color: #94a3b8; }

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

/* ===========================
   Buttons
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(249, 115, 22, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-white);
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
}

.btn-full { width: 100%; justify-content: center; }

/* ===========================
   Cookie Banner
   =========================== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-dark);
  color: #cbd5e1;
  padding: 1rem 1.25rem;
  z-index: 9999;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
}

.cookie-content {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.cookie-content p { font-size: 0.88rem; }
.cookie-content a { color: var(--color-accent); text-decoration: underline; }
.cookie-banner.hidden { display: none; }

/* ===========================
   Header / Nav
   =========================== */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: box-shadow var(--transition);
}

.header.scrolled { box-shadow: var(--shadow); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
  font-weight: 800;
  font-size: 1.2rem;
}

.logo-wsk {
  color: var(--color-primary);
}

.logo-service {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 1rem;
}

/* Hamburger */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  padding: 0;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* Mobile Menu */
.nav-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.nav-menu.open { display: flex; }

.nav-link {
  display: block;
  padding: 0.8rem 0;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.nav-link:hover { color: var(--color-accent); }
.nav-cta { margin-top: 1rem; }

/* ===========================
   Hero
   =========================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, #2d5a9e 100%);
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(249, 115, 22, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-top: 3rem;
  padding-bottom: 6rem;
}

.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.hero-text {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 520px;
  margin-bottom: 2.25rem;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  margin-bottom: 3rem;
}

.hero-trust {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.trust-item i { color: var(--color-accent); font-size: 0.9rem; }

/* Scroll-Pfeil */
.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.hero-scroll a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.7);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ===========================
   Services Grid
   =========================== */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: all var(--transition);
}

.service-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: rgba(249, 115, 22, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.service-card p {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

.section-cta {
  text-align: center;
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.section-cta p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* ===========================
   About
   =========================== */
.about-grid {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.about-visual {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.about-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(249, 115, 22, 0.15);
  color: var(--color-accent);
  border: 1px solid rgba(249, 115, 22, 0.3);
  border-radius: 100px;
  padding: 0.5rem 1.25rem;
  font-weight: 600;
  font-size: 0.9rem;
  width: fit-content;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 1.25rem 0.75rem;
}

.stat-number {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.stat-label {
  font-size: 0.78rem;
  color: #94a3b8;
  text-align: center;
}

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

.about-text p {
  color: #cbd5e1;
  margin-bottom: 1rem;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-bottom: 2rem;
}

.about-features li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: #e2e8f0;
  font-size: 0.95rem;
}

.about-features li i {
  color: var(--color-accent);
  font-size: 0.85rem;
  flex-shrink: 0;
}

/* ===========================
   Benefits Grid
   =========================== */
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.benefit-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.75rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

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

.benefit-icon {
  font-size: 1.6rem;
  color: var(--color-primary);
}

.benefit-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-dark);
}

.benefit-card p {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ===========================
   Contact
   =========================== */
.contact-grid {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.contact-info h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 1.5rem;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(249, 115, 22, 0.1);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: 0.2rem;
}

.contact-list a { font-weight: 600; color: var(--color-primary); }
.contact-list a:hover { color: var(--color-accent); }

/* ===========================
   Form
   =========================== */
.contact-form {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow);
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.form-group label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--color-dark);
  background: var(--color-white);
  transition: border-color var(--transition);
  -webkit-appearance: none;
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 61, 110, 0.1);
}

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

.form-error {
  font-size: 0.8rem;
  color: var(--color-error);
  min-height: 1em;
}

.form-group textarea { resize: vertical; min-height: 110px; }

/* Checkbox */
.form-checkbox { margin-bottom: 1.25rem; }

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.87rem;
  color: var(--color-text-light);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  border: 1.5px solid var(--color-border);
  border-radius: 4px;
  margin-top: 2px;
  accent-color: var(--color-primary);
}

.checkbox-label a { color: var(--color-primary); text-decoration: underline; }

.form-note {
  font-size: 0.78rem;
  color: var(--color-text-light);
  margin-top: 0.875rem;
}

.form-success {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(22, 163, 74, 0.08);
  border: 1px solid rgba(22, 163, 74, 0.3);
  border-radius: var(--radius-sm);
  color: var(--color-success);
  font-weight: 600;
  font-size: 0.9rem;
}

/* ===========================
   Footer
   =========================== */
.footer {
  background: var(--color-dark);
  color: #94a3b8;
  padding: 3rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.footer-brand .logo-wsk { font-size: 1.3rem; font-weight: 800; }
.footer-brand p { font-size: 0.88rem; line-height: 1.7; }

.footer-links h4,
.footer-contact h4 {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 1rem;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  font-size: 0.9rem;
  transition: color var(--transition);
}

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

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.footer-contact i { color: var(--color-accent); width: 16px; }
.footer-contact a:hover { color: var(--color-accent); }

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.5rem 0;
  font-size: 0.82rem;
  text-align: center;
}

.footer-bottom a {
  color: #94a3b8;
  transition: color var(--transition);
}

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

/* ===========================
   Tablet (≥ 640px)
   =========================== */
@media (min-width: 640px) {
  .section { padding: 5rem 0; }
  .cookie-content { flex-direction: row; align-items: center; justify-content: space-between; }
  .hero-actions { flex-direction: row; flex-wrap: wrap; }
  .hero-trust { flex-direction: row; flex-wrap: wrap; gap: 1.25rem; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { flex-direction: row; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===========================
   Skip-Link (Keyboard / A11y)
   =========================== */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 10000;
  padding: 0.6rem 1.2rem;
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 1rem;
}

/* ===========================
   Scroll-Animationen (IntersectionObserver)
   =========================== */
.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

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

/* ===========================
   Desktop (≥ 1024px)
   =========================== */
@media (min-width: 1024px) {
  .section { padding: 6rem 0; }

  /* Nav */
  .nav-toggle { display: none; }
  .nav-menu {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.25rem;
    position: static;
    background: none;
    border: none;
    padding: 0;
    box-shadow: none;
  }

  .nav-link {
    padding: 0.4rem 0.75rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
  }

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

  .nav-cta { margin-top: 0; }

  /* About */
  .about-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 4rem;
    align-items: center;
  }

  /* Services */
  .services-grid { grid-template-columns: repeat(4, 1fr); }

  /* Benefits */
  .benefits-grid { grid-template-columns: repeat(3, 1fr); }

  /* Contact */
  .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 3rem;
    align-items: start;
  }

  /* Footer */
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1.5fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}

/* ===========================
   prefers-reduced-motion
   =========================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .fade-in {
    opacity: 1;
    transform: none;
  }
  .hero-scroll a {
    animation: none;
  }
}

/* ===========================
   Legal Pages (Impressum, Datenschutz)
   =========================== */
.legal-page {
  padding-top: calc(var(--header-height) + 3rem);
  padding-bottom: 4rem;
}

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

.legal-content h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 2rem;
}

.legal-content h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
}

.legal-content p {
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.legal-content code {
  background: var(--color-bg);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  font-size: 0.9em;
}