/* --- Monochrome Sophisticated CSS for StrategieWerk Solingen --- */

/* 1. CSS Variables for Brand & Monochrome Palette */
:root {
  --color-primary: #24406D;
  --color-secondary: #8CBF3D;
  --color-accent: #F5F5F5;
  --color-black: #111111;
  --color-white: #ffffff;
  --color-gray-100: #f7f7f7;
  --color-gray-200: #ededed;
  --color-gray-300: #d6d6d6;
  --color-gray-400: #b0b0b0;
  --color-gray-500: #888888;
  --color-gray-600: #555555;
  --color-gray-700: #333333;
  --color-gray-800: #222222;
  --color-shadow: rgba(0,0,0,0.07);
  --color-shadow-strong: rgba(0,0,0,0.14);
  --font-display: 'Montserrat', Arial, Helvetica, sans-serif;
  --font-body: 'Roboto', Arial, Helvetica, sans-serif;
  --transition: 0.25s cubic-bezier(.4,0,.2,1);
  --radius: 8px;
  --radius-lg: 16px;
  --z-cookie: 9999;
  --z-mobile-menu: 9998;
}

/* 2. Reset & Base Styles */
html {
  box-sizing: border-box;
  font-size: 16px;
  background: var(--color-white);
  color: var(--color-black);
  scroll-behavior: smooth;
}
*, *:before, *:after {
  box-sizing: inherit;
}
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-white);
  color: var(--color-black);
  min-height: 100vh;
  line-height: 1.6;
  letter-spacing: 0.01em;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover, a:focus {
  color: var(--color-black);
  text-decoration: underline;
}

/* 3. Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-black);
  margin-top: 0;
  margin-bottom: 0.6em;
  letter-spacing: -0.01em;
}
h1 {
  font-size: 2.5rem;
  line-height: 1.15;
  margin-bottom: 0.7em;
}
h2 {
  font-size: 2rem;
  line-height: 1.2;
  margin-bottom: 0.6em;
}
h3 {
  font-size: 1.35rem;
  line-height: 1.3;
  margin-bottom: 0.5em;
}
h4, h5, h6 {
  font-size: 1.1rem;
  line-height: 1.3;
}
p, ul, ol {
  margin-top: 0;
  margin-bottom: 1.1em;
  color: var(--color-gray-800);
}
strong {
  color: var(--color-black);
  font-weight: 700;
}
ul, ol {
  padding-left: 1.3em;
}

/* 4. Layout Containers */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.content-wrapper {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* 5. Section Spacing */
section {
  margin-bottom: 60px;
  padding: 40px 20px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 16px var(--color-shadow);
  transition: box-shadow var(--transition);
}
section:last-child {
  margin-bottom: 0;
}

/* 6. Header & Navigation */
header {
  background: var(--color-white);
  box-shadow: 0 2px 8px var(--color-shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}
header .container {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}
header img {
  height: 48px;
  width: auto;
  margin-right: 32px;
}
header nav {
  display: flex;
  flex-direction: row;
  gap: 28px;
  align-items: center;
}
header nav a {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-black);
  font-size: 1rem;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
header nav a:hover, header nav a:focus {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
}
.cta-btn {
  font-family: var(--font-display);
  font-weight: 700;
  background: var(--color-black);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius);
  padding: 12px 32px;
  font-size: 1.1rem;
  margin-left: 24px;
  cursor: pointer;
  box-shadow: 0 2px 8px var(--color-shadow);
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
  letter-spacing: 0.03em;
  outline: none;
  display: inline-block;
}
.cta-btn:hover, .cta-btn:focus {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 16px var(--color-shadow-strong);
  transform: translateY(-2px) scale(1.03);
}

/* 7. Mobile Navigation */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--color-black);
  cursor: pointer;
  margin-left: 16px;
  transition: color var(--transition);
  z-index: var(--z-mobile-menu);
}
.mobile-menu-toggle:focus {
  outline: 2px solid var(--color-primary);
}
.mobile-menu {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: flex-start;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(17,17,17,0.96);
  z-index: var(--z-mobile-menu);
  transform: translateX(-100%);
  transition: transform 0.35s cubic-bezier(.4,0,.2,1);
  pointer-events: none;
  opacity: 0;
}
.mobile-menu.open {
  transform: translateX(0);
  pointer-events: auto;
  opacity: 1;
}
.mobile-menu-close {
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 2.2rem;
  margin: 32px 32px 0 0;
  cursor: pointer;
  align-self: flex-end;
  transition: color var(--transition);
}
.mobile-menu-close:hover, .mobile-menu-close:focus {
  color: var(--color-secondary);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 28px;
  margin: 60px 0 0 48px;
}
.mobile-nav a {
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.mobile-nav a:hover, .mobile-nav a:focus {
  color: var(--color-secondary);
  border-bottom: 2px solid var(--color-secondary);
}

/* 8. Footer */
footer {
  background: var(--color-black);
  color: var(--color-white);
  padding: 32px 0 24px 0;
  margin-top: 60px;
}
footer .container {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
footer nav {
  display: flex;
  flex-direction: row;
  gap: 24px;
}
footer nav a {
  color: var(--color-gray-300);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  transition: color var(--transition);
}
footer nav a:hover, footer nav a:focus {
  color: var(--color-secondary);
}
footer span {
  font-size: 0.95rem;
  color: var(--color-gray-400);
}

/* 9. Feature Grid, Cards, and Flex Layouts */
.feature-grid, .team-grid, .case-study-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 12px;
  margin-bottom: 12px;
}
.feature-grid > div, .team-grid > div, .case-study-gallery > div {
  background: var(--color-gray-100);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  padding: 28px 24px;
  flex: 1 1 260px;
  min-width: 220px;
  margin-bottom: 20px;
  transition: box-shadow var(--transition), background var(--transition), transform var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.feature-grid > div:hover, .team-grid > div:hover, .case-study-gallery > div:hover {
  background: var(--color-white);
  box-shadow: 0 6px 24px var(--color-shadow-strong);
  transform: translateY(-2px) scale(1.02);
}

.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.card {
  background: var(--color-gray-100);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  margin-bottom: 20px;
  padding: 28px 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow var(--transition), background var(--transition), transform var(--transition);
}
.card:hover {
  background: var(--color-white);
  box-shadow: 0 6px 24px var(--color-shadow-strong);
  transform: translateY(-2px) scale(1.02);
}

.content-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}
.text-image-section {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}

/* 10. Testimonials */
.testimonial-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background: var(--color-gray-200);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  margin-bottom: 20px;
  color: var(--color-black);
  font-style: italic;
  transition: box-shadow var(--transition), background var(--transition);
}
.testimonial-card p {
  margin: 0;
  color: var(--color-black);
  font-size: 1.1rem;
}
.testimonial-card span {
  font-style: normal;
  color: var(--color-gray-700);
  font-size: 1rem;
}
.testimonial-card:hover {
  background: var(--color-white);
  box-shadow: 0 6px 24px var(--color-shadow-strong);
}

/* 11. Feature Item */
.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}

/* 12. Contact Details & Opening Hours */
.contact-details, .opening-hours {
  background: var(--color-gray-100);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 20px;
  color: var(--color-black);
  font-size: 1rem;
  box-shadow: 0 1px 4px var(--color-shadow);
}

/* 13. Lists */
ul, ol {
  color: var(--color-gray-800);
  margin-bottom: 1.2em;
}
ul li, ol li {
  margin-bottom: 0.5em;
  padding-left: 0.2em;
}

/* 14. Cookie Consent Banner */
.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-cookie);
  background: var(--color-black);
  color: var(--color-white);
  padding: 28px 20px 24px 20px;
  box-shadow: 0 -2px 16px var(--color-shadow-strong);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  transition: transform 0.4s cubic-bezier(.4,0,.2,1), opacity 0.3s;
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none;
}
.cookie-banner.visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.cookie-banner p {
  margin: 0;
  color: var(--color-white);
  font-size: 1.05rem;
}
.cookie-banner .cookie-btns {
  display: flex;
  flex-direction: row;
  gap: 16px;
  margin-top: 6px;
}
.cookie-btn {
  font-family: var(--font-display);
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  padding: 10px 22px;
  font-size: 1rem;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  margin: 0;
}
.cookie-btn.accept {
  background: var(--color-secondary);
  color: var(--color-black);
}
.cookie-btn.accept:hover, .cookie-btn.accept:focus {
  background: var(--color-white);
  color: var(--color-black);
  box-shadow: 0 2px 8px var(--color-shadow);
}
.cookie-btn.reject {
  background: var(--color-gray-400);
  color: var(--color-black);
}
.cookie-btn.reject:hover, .cookie-btn.reject:focus {
  background: var(--color-gray-600);
  color: var(--color-white);
}
.cookie-btn.settings {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid var(--color-white);
}
.cookie-btn.settings:hover, .cookie-btn.settings:focus {
  background: var(--color-white);
  color: var(--color-black);
}

/* 15. Cookie Modal */
.cookie-modal-overlay {
  position: fixed;
  z-index: var(--z-cookie);
  left: 0; top: 0; right: 0; bottom: 0;
  background: rgba(17,17,17,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.cookie-modal-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}
.cookie-modal {
  background: var(--color-white);
  color: var(--color-black);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px var(--color-shadow-strong);
  padding: 36px 28px 28px 28px;
  min-width: 320px;
  max-width: 95vw;
  display: flex;
  flex-direction: column;
  gap: 22px;
  position: relative;
  animation: cookieModalIn 0.4s cubic-bezier(.4,0,.2,1);
}
@keyframes cookieModalIn {
  from { transform: translateY(40px) scale(0.98); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}
.cookie-modal h2 {
  font-size: 1.4rem;
  margin-bottom: 0.5em;
}
.cookie-modal .cookie-category {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}
.cookie-modal .cookie-category label {
  font-size: 1.05rem;
  color: var(--color-black);
  font-weight: 500;
}
.cookie-modal .cookie-toggle {
  width: 38px;
  height: 22px;
  border-radius: 11px;
  background: var(--color-gray-300);
  position: relative;
  cursor: pointer;
  transition: background var(--transition);
  flex-shrink: 0;
}
.cookie-modal .cookie-toggle input {
  display: none;
}
.cookie-modal .cookie-toggle .slider {
  position: absolute;
  left: 2px; top: 2px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--color-gray-600);
  transition: left var(--transition), background var(--transition);
}
.cookie-modal .cookie-toggle input:checked + .slider {
  left: 18px;
  background: var(--color-secondary);
}
.cookie-modal .cookie-category.essential .cookie-toggle {
  background: var(--color-gray-400);
  cursor: not-allowed;
}
.cookie-modal .cookie-category.essential .cookie-toggle .slider {
  background: var(--color-secondary);
}
.cookie-modal .cookie-modal-actions {
  display: flex;
  flex-direction: row;
  gap: 16px;
  margin-top: 10px;
}
.cookie-modal .cookie-modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-gray-600);
  cursor: pointer;
  transition: color var(--transition);
}
.cookie-modal .cookie-modal-close:hover, .cookie-modal .cookie-modal-close:focus {
  color: var(--color-black);
}

/* 16. Micro-interactions & Transitions */
button, .cta-btn, .cookie-btn {
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
}

/* 17. Responsive Design (Mobile-First) */
@media (max-width: 1024px) {
  .container {
    max-width: 900px;
  }
  header .container, footer .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  footer .container {
    align-items: flex-start;
  }
}
@media (max-width: 900px) {
  .feature-grid > div, .team-grid > div, .case-study-gallery > div {
    flex: 1 1 100%;
    min-width: 180px;
  }
}
@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  .container {
    max-width: 100vw;
    padding-left: 12px;
    padding-right: 12px;
  }
  section {
    padding: 28px 8px;
    margin-bottom: 36px;
  }
  header .container {
    flex-direction: row;
    align-items: center;
    gap: 10px;
    min-height: 56px;
  }
  header nav {
    display: none;
  }
  .cta-btn {
    margin-left: 0;
    padding: 10px 18px;
    font-size: 1rem;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .feature-grid, .team-grid, .case-study-gallery {
    flex-direction: column;
    gap: 18px;
  }
  .feature-grid > div, .team-grid > div, .case-study-gallery > div {
    min-width: 0;
    width: 100%;
    padding: 18px 12px;
  }
  .content-grid {
    flex-direction: column;
    gap: 14px;
  }
  .text-image-section {
    flex-direction: column;
    gap: 18px;
    align-items: flex-start;
  }
  .testimonial-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 14px;
  }
  .cookie-modal {
    padding: 18px 8px 18px 8px;
    min-width: 0;
    width: 95vw;
  }
}
@media (max-width: 480px) {
  h1 {
    font-size: 1.6rem;
  }
  h2 {
    font-size: 1.2rem;
  }
  .cta-btn {
    font-size: 0.98rem;
    padding: 8px 12px;
  }
  .cookie-banner {
    padding: 18px 6px 14px 6px;
  }
}

/* 18. Accessibility Focus Styles */
a:focus, button:focus, .cta-btn:focus, .cookie-btn:focus {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* 19. Hide Mobile Menu on Desktop */
@media (min-width: 769px) {
  .mobile-menu, .mobile-menu-toggle {
    display: none !important;
  }
  header nav {
    display: flex !important;
  }
}

/* 20. Utility Classes */
.hide {
  display: none !important;
}

/* --- End Monochrome Sophisticated CSS --- */