/* KlimaPro Dortmund – Professional Corporate CSS Theme */

/* ====== CSS Variables for Brand Colors & Spacing ====== */
:root {
  --color-primary: #19549A;
  --color-secondary: #41B6E6;
  --color-accent: #F4F7FB;
  --color-bg: #F4F7FB;
  --color-bg-dark: #e9eef5;
  --color-text: #1a2533;
  --color-text-light: #ffffff;
  --color-gray: #6b7a8f;
  --color-border: #d1d9e6;
  --color-shadow: rgba(25, 84, 154, 0.07);
  --color-shadow-hover: rgba(25, 84, 154, 0.13);
  --color-success: #41B6E6;
  --color-error: #e65151;
  --font-display: 'Montserrat', Arial, Helvetica, sans-serif;
  --font-body: 'Roboto', Arial, Helvetica, sans-serif;
  --radius: 10px;
  --transition: 0.2s cubic-bezier(.4,0,.2,1);
  --gap-section: 60px;
  --gap-card: 24px;
  --gap-content: 20px;
  --gap-feature: 15px;
  --header-height: 72px;
  --z-cookie: 9999;
  --z-mobile-menu: 9998;
}

/* ====== Reset & Base ====== */
html {
  box-sizing: border-box;
  font-size: 16px;
  scroll-behavior: smooth;
}
*, *:before, *:after {
  box-sizing: inherit;
}
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
}
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-secondary);
}
ul, ol {
  padding-left: 1.5em;
  margin: 0 0 1.2em 0;
}
li {
  margin-bottom: 0.5em;
}

/* ====== Typography ====== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-primary);
  margin-top: 0;
  margin-bottom: 0.6em;
  font-weight: 700;
  letter-spacing: 0.01em;
}
h1 {
  font-size: 2.2rem;
  line-height: 1.15;
}
h2 {
  font-size: 1.6rem;
}
h3 {
  font-size: 1.2rem;
  color: var(--color-secondary);
}
h4, h5, h6 {
  font-size: 1rem;
}
p {
  margin-top: 0;
  margin-bottom: 1.1em;
  color: var(--color-text);
}
strong {
  font-weight: 700;
  color: var(--color-primary);
}

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

/* ====== Section Spacing ====== */
section {
  margin-bottom: var(--gap-section);
  padding: 40px 0 0 0;
}
.section {
  margin-bottom: var(--gap-section);
  padding: 40px 20px;
}

/* ====== Header & Navigation ====== */
header {
  background: var(--color-text-light);
  box-shadow: 0 2px 8px var(--color-shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}
header .container {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-direction: row;
  gap: 30px;
}
header img {
  height: 48px;
  margin-right: 24px;
}
header nav {
  display: flex;
  flex-direction: row;
  gap: 24px;
  align-items: center;
}
header nav a {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-gray);
  font-weight: 500;
  padding: 8px 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-secondary);
}
.primary-cta {
  background: linear-gradient(90deg, var(--color-primary) 80%, var(--color-secondary) 100%);
  color: var(--color-text-light);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  margin-left: 24px;
  display: inline-block;
  text-align: center;
}
.primary-cta:hover, .primary-cta:focus {
  background: linear-gradient(90deg, var(--color-secondary) 80%, var(--color-primary) 100%);
  box-shadow: 0 4px 16px var(--color-shadow-hover);
  transform: translateY(-2px) scale(1.03);
}

/* ====== Mobile Navigation ====== */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--color-primary);
  cursor: pointer;
  margin-left: 16px;
  z-index: var(--z-mobile-menu);
  transition: color var(--transition);
}
.mobile-menu-toggle:focus {
  outline: 2px solid var(--color-secondary);
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(25,84,154,0.97);
  z-index: var(--z-mobile-menu);
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(.4,0,.2,1);
}
.mobile-menu.open {
  display: flex;
  opacity: 1;
  pointer-events: auto;
  animation: slideInMenu 0.35s cubic-bezier(.4,0,.2,1);
}
@keyframes slideInMenu {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}
.mobile-menu-close {
  background: none;
  border: none;
  color: var(--color-text-light);
  font-size: 2.2rem;
  align-self: flex-end;
  margin: 24px 24px 0 0;
  cursor: pointer;
  transition: color var(--transition);
}
.mobile-menu-close:focus {
  outline: 2px solid var(--color-secondary);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 24px;
  width: 100%;
  align-items: flex-start;
  margin: 40px 0 0 40px;
}
.mobile-nav a {
  color: var(--color-text-light);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  padding: 8px 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);
}

/* ====== Main Content ====== */
main {
  min-height: 60vh;
  margin-top: 0;
}

/* ====== Feature Grid & Cards ====== */
.feature-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-card);
  margin-top: 20px;
}
.feature-grid > div {
  background: var(--color-text-light);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  padding: 28px 24px;
  flex: 1 1 260px;
  min-width: 220px;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--gap-feature);
  margin-bottom: 20px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.feature-grid > div:hover {
  box-shadow: 0 6px 24px var(--color-shadow-hover);
  transform: translateY(-4px) scale(1.02);
}

/* ====== Gallery (Referenzen, Klimaanlagen) ====== */
.gallery {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-card);
  margin-top: 20px;
}
.gallery > div {
  background: var(--color-bg-dark);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  padding: 24px 20px;
  flex: 1 1 260px;
  min-width: 220px;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--gap-feature);
  margin-bottom: 20px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.gallery > div:hover {
  box-shadow: 0 6px 24px var(--color-shadow-hover);
  transform: translateY(-4px) scale(1.02);
}

/* ====== Testimonials ====== */
.testimonial-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  background: var(--color-accent);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  padding: 20px;
  margin-bottom: 20px;
  color: var(--color-text);
  font-size: 1.05rem;
  min-width: 220px;
  max-width: 540px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.testimonial-card strong {
  color: var(--color-primary);
  font-size: 1rem;
}
.testimonial-card span {
  color: #f5b400;
  font-size: 1.1rem;
  margin-left: 8px;
}
.testimonial-card:hover {
  box-shadow: 0 6px 24px var(--color-shadow-hover);
  transform: translateY(-2px) scale(1.01);
}

/* ====== FAQ Accordion ====== */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 20px;
}
.faq-accordion > div {
  background: var(--color-bg-dark);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  padding: 20px 18px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.faq-accordion > div:hover {
  box-shadow: 0 6px 24px var(--color-shadow-hover);
  transform: translateY(-2px) scale(1.01);
}
.faq-accordion strong {
  color: var(--color-primary);
  font-size: 1.05rem;
}

/* ====== CTA Box ====== */
.cta-box {
  background: linear-gradient(90deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  color: var(--color-text-light);
  border-radius: var(--radius);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px var(--color-shadow);
}
.cta-box p {
  color: var(--color-text-light);
}

/* ====== Text-Image Section ====== */
.text-image-section {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.text-image-section > div {
  flex: 1 1 320px;
  min-width: 220px;
}

/* ====== Contact Details ====== */
.contact-details {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--color-accent);
  border-radius: var(--radius);
  padding: 20px 18px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px var(--color-shadow);
}
.contact-details a {
  color: var(--color-primary);
  font-weight: 500;
}
.map {
  background: var(--color-bg-dark);
  border-radius: var(--radius);
  padding: 18px 16px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px var(--color-shadow);
}

/* ====== Footer ====== */
footer {
  background: var(--color-primary);
  color: var(--color-text-light);
  padding: 40px 0 0 0;
  font-size: 0.98rem;
}
footer .container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
}
footer nav {
  display: flex;
  flex-direction: row;
  gap: 24px;
  margin-bottom: 10px;
}
footer nav a {
  color: var(--color-accent);
  font-family: var(--font-body);
  font-weight: 500;
  transition: color var(--transition);
}
footer nav a:hover, footer nav a:focus {
  color: var(--color-secondary);
}
footer p {
  color: var(--color-accent);
  margin: 0 0 6px 0;
}

/* ====== Cookie Consent Banner ====== */
.cookie-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: var(--z-cookie);
  background: var(--color-text-light);
  color: var(--color-text);
  box-shadow: 0 -2px 16px var(--color-shadow);
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 20px;
  min-height: 80px;
  animation: slideInBanner 0.4s cubic-bezier(.4,0,.2,1);
}
@keyframes slideInBanner {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.cookie-banner__text {
  flex: 1 1 0;
  font-size: 1rem;
  color: var(--color-text);
}
.cookie-banner__actions {
  display: flex;
  flex-direction: row;
  gap: 16px;
  align-items: center;
}
.cookie-btn {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius);
  padding: 10px 22px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  box-shadow: 0 2px 8px var(--color-shadow);
}
.cookie-btn.accept {
  background: var(--color-primary);
  color: var(--color-text-light);
}
.cookie-btn.accept:hover, .cookie-btn.accept:focus {
  background: var(--color-secondary);
}
.cookie-btn.reject {
  background: var(--color-bg-dark);
  color: var(--color-primary);
}
.cookie-btn.reject:hover, .cookie-btn.reject:focus {
  background: var(--color-error);
  color: var(--color-text-light);
}
.cookie-btn.settings {
  background: var(--color-secondary);
  color: var(--color-text-light);
}
.cookie-btn.settings:hover, .cookie-btn.settings:focus {
  background: var(--color-primary);
}

/* ====== Cookie Modal ====== */
.cookie-modal-overlay {
  position: fixed;
  left: 0; right: 0; top: 0; bottom: 0;
  background: rgba(25,84,154,0.45);
  z-index: calc(var(--z-cookie) + 1);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(.4,0,.2,1);
}
.cookie-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.cookie-modal {
  background: var(--color-text-light);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px var(--color-shadow-hover);
  padding: 36px 28px 28px 28px;
  min-width: 320px;
  max-width: 95vw;
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: fadeInModal 0.3s cubic-bezier(.4,0,.2,1);
}
@keyframes fadeInModal {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.cookie-modal h2 {
  color: var(--color-primary);
  margin-bottom: 10px;
}
.cookie-modal .cookie-category {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 18px;
  margin-bottom: 12px;
}
.cookie-modal .cookie-category label {
  font-weight: 500;
  color: var(--color-text);
}
.cookie-modal .cookie-toggle {
  width: 44px;
  height: 24px;
  background: var(--color-bg-dark);
  border-radius: 12px;
  position: relative;
  cursor: pointer;
  transition: background var(--transition);
}
.cookie-modal .cookie-toggle input {
  display: none;
}
.cookie-modal .cookie-toggle span {
  position: absolute;
  top: 2px; left: 2px;
  width: 20px; height: 20px;
  background: var(--color-primary);
  border-radius: 50%;
  transition: left var(--transition), background var(--transition);
}
.cookie-modal .cookie-toggle input:checked + span {
  left: 22px;
  background: var(--color-secondary);
}
.cookie-modal .cookie-category.essential label {
  color: var(--color-gray);
  font-style: italic;
}
.cookie-modal .cookie-category.essential .cookie-toggle {
  opacity: 0.5;
  pointer-events: none;
}
.cookie-modal .cookie-modal-actions {
  display: flex;
  flex-direction: row;
  gap: 16px;
  justify-content: flex-end;
  margin-top: 10px;
}

/* ====== Responsive Design ====== */
@media (max-width: 1024px) {
  .container {
    max-width: 960px;
  }
  .feature-grid, .gallery {
    gap: 18px;
  }
}
@media (max-width: 900px) {
  .container {
    max-width: 720px;
  }
  .feature-grid > div, .gallery > div {
    min-width: 180px;
    max-width: 100%;
  }
}
@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  header .container {
    flex-direction: row;
    gap: 10px;
  }
  header nav {
    display: none;
  }
  .primary-cta {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .feature-grid, .gallery {
    flex-direction: column;
    gap: 20px;
  }
  .feature-grid > div, .gallery > div {
    width: 100%;
    min-width: 0;
    max-width: 100%;
  }
  .testimonial-card {
    max-width: 100%;
  }
  .text-image-section {
    flex-direction: column;
    gap: 20px;
  }
  .cookie-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 10px;
  }
  .cookie-banner__actions {
    flex-direction: column;
    gap: 10px;
    width: 100%;
  }
  .cookie-modal {
    min-width: 90vw;
    padding: 24px 10px 18px 10px;
  }
  footer .container {
    padding-left: 10px;
    padding-right: 10px;
  }
  footer nav {
    flex-direction: column;
    gap: 10px;
  }
}
@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  .container {
    padding-left: 8px;
    padding-right: 8px;
  }
  section, .section {
    padding: 28px 0 0 0;
  }
  .feature-grid, .gallery {
    gap: 14px;
  }
  .testimonial-card, .faq-accordion > div, .cta-box, .contact-details, .map {
    padding: 14px 8px;
  }
}

/* ====== Utility Classes ====== */
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.card {
  margin-bottom: 20px;
  position: relative;
  background: var(--color-text-light);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.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;
}
.testimonial-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
}
.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}

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

/* ====== Hide visually but keep accessible ====== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ====== Animations for micro-interactions ====== */
.card, .feature-grid > div, .gallery > div, .testimonial-card, .faq-accordion > div {
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover, .feature-grid > div:hover, .gallery > div:hover, .testimonial-card:hover, .faq-accordion > div:hover {
  box-shadow: 0 6px 24px var(--color-shadow-hover);
  transform: translateY(-2px) scale(1.01);
}

/* ====== Prevent Overlapping ====== */
section, .section, .card, .feature-grid > div, .gallery > div, .testimonial-card, .faq-accordion > div, .cta-box, .contact-details, .map {
  margin-bottom: 20px;
}

/* ====== Prevent Absolute Positioning for Content ====== */
/* Only decorative elements may use absolute, not content cards/text blocks */

/* ====== End of CSS ====== */