/* HeizProfi Düsseldorf – Elegant Classic CSS Theme */

/* =====================
   1. Root & Variables
   ===================== */
:root {
  --color-primary: #183153;
  --color-secondary: #35A7DF;
  --color-accent: #EAEAEA;
  --color-bg: #F8F7F4;
  --color-bg-section: #FFFFFF;
  --color-muted: #D1D5DB;
  --color-text: #232323;
  --color-text-light: #FFFFFF;
  --color-shadow: rgba(24,49,83,0.07);
  --color-shadow-strong: rgba(24,49,83,0.13);
  --font-display: 'Roboto Slab', 'Roboto', serif;
  --font-body: 'Merriweather', 'Open Sans', serif;
  --radius: 8px;
  --transition: 0.25s cubic-bezier(.4,0,.2,1);
  --shadow-card: 0 2px 16px var(--color-shadow);
  --shadow-card-hover: 0 4px 24px var(--color-shadow-strong);
  --section-spacing: 60px;
  --container-max: 1200px;
  --gap-main: 24px;
  --gap-card: 20px;
  --gap-feature: 15px;
  --gap-testimonial: 20px;
}

html {
  box-sizing: border-box;
  font-size: 18px;
  background: var(--color-bg);
  scroll-behavior: smooth;
}
*, *:before, *:after {
  box-sizing: inherit;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  margin: 0;
  padding: 0;
  line-height: 1.7;
  min-height: 100vh;
}

/* =====================
   2. Typography
   ===================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-primary);
  margin-top: 0;
  margin-bottom: 0.7em;
  font-weight: 700;
  letter-spacing: 0.01em;
}
h1 {
  font-size: 2.2rem;
  line-height: 1.15;
}
h2 {
  font-size: 1.6rem;
  line-height: 1.2;
}
h3 {
  font-size: 1.2rem;
  line-height: 1.25;
}
h4 {
  font-size: 1.05rem;
  font-weight: 600;
}
p, ul, ol, li {
  font-family: var(--font-body);
  color: var(--color-text);
  font-size: 1rem;
  margin-bottom: 1em;
}
ul, ol {
  padding-left: 1.3em;
  margin-top: 0;
  margin-bottom: 1em;
}
li {
  margin-bottom: 0.5em;
}
a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover, a:focus {
  color: var(--color-primary);
  text-decoration: underline;
}
strong {
  font-weight: 700;
}

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

section {
  background: var(--color-bg-section);
  border-radius: var(--radius);
  margin-bottom: var(--section-spacing);
  padding: 40px 20px;
  box-shadow: 0 2px 12px var(--color-shadow);
}

@media (max-width: 768px) {
  section {
    padding: 28px 8px;
    margin-bottom: 36px;
  }
  .container {
    padding: 0 8px;
  }
}

/* =====================
   4. Navigation
   ===================== */
header {
  background: var(--color-bg-section);
  box-shadow: 0 2px 8px var(--color-shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  justify-content: flex-start;
  padding: 0 20px;
  height: 72px;
}
.main-nav a {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--color-primary);
  padding: 8px 0;
  position: relative;
  transition: color var(--transition);
}
.main-nav a:not(.cta-button):after {
  content: '';
  display: block;
  width: 0;
  height: 2px;
  background: var(--color-secondary);
  transition: width var(--transition);
  position: absolute;
  left: 0;
  bottom: 0;
}
.main-nav a:not(.cta-button):hover:after {
  width: 100%;
}
.main-nav img {
  height: 38px;
  margin-right: 18px;
  vertical-align: middle;
}
.cta-button {
  background: var(--color-secondary);
  color: var(--color-text-light) !important;
  font-family: var(--font-display);
  font-weight: 700;
  border: none;
  border-radius: var(--radius);
  padding: 10px 28px;
  margin-left: 12px;
  box-shadow: 0 2px 8px var(--color-shadow);
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), color var(--transition);
  letter-spacing: 0.03em;
  font-size: 1rem;
  text-align: center;
  display: inline-block;
}
.cta-button:hover, .cta-button:focus {
  background: var(--color-primary);
  color: var(--color-text-light) !important;
  box-shadow: 0 4px 16px var(--color-shadow-strong);
  text-decoration: none;
}

/* Hide mobile menu toggle on desktop */
.mobile-menu-toggle {
  display: none;
}

/* =====================
   5. Mobile Navigation
   ===================== */
@media (max-width: 1024px) {
  .main-nav {
    gap: 18px;
    padding: 0 10px;
  }
  .main-nav img {
    margin-right: 8px;
  }
}
@media (max-width: 900px) {
  .main-nav {
    gap: 10px;
    font-size: 0.97rem;
  }
}
@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
    position: absolute;
    top: 18px;
    right: 18px;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-primary);
    z-index: 120;
    cursor: pointer;
    transition: color var(--transition);
  }
  .mobile-menu-toggle:focus {
    outline: 2px solid var(--color-secondary);
  }
  .mobile-menu {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--color-bg-section);
    box-shadow: 0 8px 32px var(--color-shadow-strong);
    z-index: 200;
    transform: translateX(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s cubic-bezier(.4,0,.2,1), opacity 0.25s;
  }
  .mobile-menu.open {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
  }
  .mobile-menu-close {
    align-self: flex-end;
    margin: 18px 18px 0 0;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-primary);
    cursor: pointer;
    transition: color var(--transition);
  }
  .mobile-menu-close:focus {
    outline: 2px solid var(--color-secondary);
  }
  .mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 18px;
    width: 100%;
    margin-top: 32px;
    align-items: flex-start;
    padding-left: 32px;
  }
  .mobile-nav a {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--color-primary);
    padding: 8px 0;
    border-radius: var(--radius);
    transition: background var(--transition), color var(--transition);
    width: fit-content;
  }
  .mobile-nav a:hover, .mobile-nav a:focus {
    background: var(--color-accent);
    color: var(--color-secondary);
    text-decoration: none;
  }
}

/* =====================
   6. Footer
   ===================== */
footer {
  background: var(--color-bg-section);
  border-top: 1px solid var(--color-muted);
  padding: 32px 0 16px 0;
  margin-top: 40px;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
  margin-bottom: 12px;
}
.footer-nav a {
  color: var(--color-primary);
  font-family: var(--font-display);
  font-size: 1rem;
  opacity: 0.85;
  transition: color var(--transition), opacity var(--transition);
}
.footer-nav a:hover, .footer-nav a:focus {
  color: var(--color-secondary);
  opacity: 1;
}
.footer-contact {
  text-align: center;
  color: var(--color-primary);
  font-size: 0.98rem;
  opacity: 0.85;
}

/* =====================
   7. Cards, Grids, Features
   ===================== */
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.card {
  background: var(--color-bg-section);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  margin-bottom: 20px;
  position: relative;
  padding: 28px 22px;
  min-width: 260px;
  flex: 1 1 260px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover, .card:focus-within {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px) scale(1.012);
}

.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;
}
.text-image-section > div {
  flex: 1 1 320px;
  min-width: 220px;
}
.text-image-section img {
  max-width: 340px;
  width: 100%;
  border-radius: var(--radius);
  box-shadow: 0 2px 12px var(--color-shadow);
}

@media (max-width: 900px) {
  .text-image-section {
    gap: 18px;
  }
  .text-image-section img {
    max-width: 100%;
  }
}
@media (max-width: 768px) {
  .text-image-section {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }
}

.features-grid, .services-list, .service-grid, .system-grid, .team-grid, .image-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 12px;
}
.features-grid > div, .services-list > div, .service-grid > div, .system-grid > div, .team-grid > div, .image-gallery > div {
  background: var(--color-accent);
  border-radius: var(--radius);
  box-shadow: 0 1px 6px var(--color-shadow);
  padding: 22px 18px;
  flex: 1 1 220px;
  min-width: 200px;
  margin-bottom: 20px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.features-grid > div:hover, .services-list > div:hover, .service-grid > div:hover, .system-grid > div:hover, .team-grid > div:hover, .image-gallery > div:hover {
  box-shadow: 0 4px 16px var(--color-shadow-strong);
  transform: translateY(-2px) scale(1.01);
}
.image-gallery img {
  width: 100%;
  border-radius: var(--radius);
  margin-bottom: 10px;
  box-shadow: 0 2px 12px var(--color-shadow);
}

@media (max-width: 900px) {
  .features-grid, .services-list, .service-grid, .system-grid, .team-grid, .image-gallery {
    gap: 14px;
  }
}
@media (max-width: 768px) {
  .features-grid, .services-list, .service-grid, .system-grid, .team-grid, .image-gallery {
    flex-direction: column;
    gap: 12px;
  }
  .features-grid > div, .services-list > div, .service-grid > div, .system-grid > div, .team-grid > div, .image-gallery > div {
    min-width: 0;
    width: 100%;
  }
}

.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}

/* =====================
   8. Testimonials & FAQ
   ===================== */
.testimonial-slider, .testimonial-list {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 8px;
}
.testimonial-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  padding: 20px;
  background: var(--color-accent);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px var(--color-shadow);
  min-width: 260px;
  flex: 1 1 260px;
  margin-bottom: 20px;
  color: var(--color-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: box-shadow var(--transition), transform var(--transition);
}
.testimonial-card:hover, .testimonial-card:focus-within {
  box-shadow: 0 4px 16px var(--color-shadow-strong);
  transform: translateY(-2px) scale(1.01);
}
.testimonial-card p {
  color: var(--color-primary);
  font-style: italic;
  margin-bottom: 0.5em;
}
.testimonial-card span {
  color: var(--color-secondary);
  font-family: var(--font-display);
  font-size: 0.98rem;
}
.testimonial-card div {
  color: #F5B800;
  font-size: 1.1rem;
  letter-spacing: 0.1em;
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.faq-accordion > div {
  background: var(--color-accent);
  border-radius: var(--radius);
  box-shadow: 0 1px 6px var(--color-shadow);
  padding: 18px 16px;
  margin-bottom: 12px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.faq-accordion > div:hover, .faq-accordion > div:focus-within {
  box-shadow: 0 4px 16px var(--color-shadow-strong);
  transform: translateY(-1px) scale(1.01);
}
.faq-accordion h4 {
  margin-bottom: 0.5em;
  color: var(--color-primary);
  font-family: var(--font-display);
}

/* =====================
   9. Tables
   ===================== */
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-bg-section);
  border-radius: var(--radius);
  box-shadow: 0 1px 6px var(--color-shadow);
  margin-bottom: 20px;
  overflow: hidden;
}
thead {
  background: var(--color-accent);
}
th, td {
  padding: 14px 12px;
  text-align: left;
  font-family: var(--font-body);
  font-size: 1rem;
  border-bottom: 1px solid var(--color-muted);
}
th {
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 700;
}
tr:last-child td {
  border-bottom: none;
}
@media (max-width: 600px) {
  table, thead, tbody, th, td, tr {
    display: block;
  }
  th, td {
    padding: 10px 6px;
    font-size: 0.97rem;
  }
  thead {
    display: none;
  }
  tr {
    margin-bottom: 18px;
    background: var(--color-accent);
    border-radius: var(--radius);
    box-shadow: 0 1px 6px var(--color-shadow);
    padding: 8px 0;
  }
  td {
    border: none;
    position: relative;
    padding-left: 50%;
  }
  td:before {
    position: absolute;
    left: 12px;
    top: 10px;
    width: 45%;
    white-space: nowrap;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-display);
    content: attr(data-label);
  }
}

/* =====================
   10. Cookie Consent Banner
   ===================== */
.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 3000;
  background: var(--color-bg-section);
  box-shadow: 0 -2px 16px var(--color-shadow-strong);
  border-top: 1px solid var(--color-muted);
  padding: 24px 20px 20px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(100%);
  transition: opacity 0.3s, transform 0.4s cubic-bezier(.4,0,.2,1);
}
.cookie-banner.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.cookie-banner p {
  color: var(--color-primary);
  font-size: 1rem;
  margin: 0 0 8px 0;
  text-align: center;
}
.cookie-banner .cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}
.cookie-banner button {
  font-family: var(--font-display);
  font-size: 1rem;
  border: none;
  border-radius: var(--radius);
  padding: 8px 22px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  box-shadow: 0 1px 6px var(--color-shadow);
}
.cookie-banner .accept {
  background: var(--color-secondary);
  color: var(--color-text-light);
  font-weight: 700;
}
.cookie-banner .accept:hover, .cookie-banner .accept:focus {
  background: var(--color-primary);
}
.cookie-banner .reject {
  background: var(--color-accent);
  color: var(--color-primary);
  font-weight: 700;
}
.cookie-banner .reject:hover, .cookie-banner .reject:focus {
  background: var(--color-muted);
}
.cookie-banner .settings {
  background: none;
  color: var(--color-secondary);
  border: 1px solid var(--color-secondary);
  font-weight: 700;
}
.cookie-banner .settings:hover, .cookie-banner .settings:focus {
  background: var(--color-secondary);
  color: var(--color-text-light);
}

/* Cookie Modal */
.cookie-modal-overlay {
  position: fixed;
  z-index: 4000;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(24,49,83,0.25);
  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-bg-section);
  border-radius: var(--radius);
  box-shadow: 0 4px 32px var(--color-shadow-strong);
  padding: 36px 28px 28px 28px;
  max-width: 420px;
  width: 90vw;
  display: flex;
  flex-direction: column;
  gap: 22px;
  position: relative;
  transform: translateY(40px);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(.4,0,.2,1), opacity 0.3s;
}
.cookie-modal-overlay.visible .cookie-modal {
  transform: translateY(0);
  opacity: 1;
}
.cookie-modal h3 {
  margin-bottom: 0.5em;
  font-size: 1.2rem;
  color: var(--color-primary);
}
.cookie-modal .cookie-category {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}
.cookie-modal .cookie-category label {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-primary);
}
.cookie-modal .cookie-category input[type="checkbox"] {
  accent-color: var(--color-secondary);
  width: 18px;
  height: 18px;
}
.cookie-modal .cookie-category input[disabled] {
  accent-color: var(--color-muted);
  opacity: 0.7;
}
.cookie-modal .cookie-modal-actions {
  display: flex;
  gap: 16px;
  justify-content: flex-end;
  margin-top: 10px;
}
.cookie-modal .close-modal {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-primary);
  cursor: pointer;
  transition: color var(--transition);
}
.cookie-modal .close-modal:hover, .cookie-modal .close-modal:focus {
  color: var(--color-secondary);
}
.cookie-modal button {
  font-family: var(--font-display);
  font-size: 1rem;
  border: none;
  border-radius: var(--radius);
  padding: 8px 22px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  box-shadow: 0 1px 6px var(--color-shadow);
}
.cookie-modal .accept {
  background: var(--color-secondary);
  color: var(--color-text-light);
  font-weight: 700;
}
.cookie-modal .accept:hover, .cookie-modal .accept:focus {
  background: var(--color-primary);
}
.cookie-modal .reject {
  background: var(--color-accent);
  color: var(--color-primary);
  font-weight: 700;
}
.cookie-modal .reject:hover, .cookie-modal .reject:focus {
  background: var(--color-muted);
}

@media (max-width: 600px) {
  .cookie-modal {
    padding: 18px 8px 18px 8px;
    max-width: 98vw;
  }
}

/* =====================
   11. Forms (if any)
   ===================== */
input, textarea, select {
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid var(--color-muted);
  border-radius: var(--radius);
  padding: 10px 12px;
  margin-bottom: 16px;
  background: var(--color-accent);
  color: var(--color-primary);
  transition: border var(--transition), box-shadow var(--transition);
}
input:focus, textarea:focus, select:focus {
  border-color: var(--color-secondary);
  outline: none;
  box-shadow: 0 0 0 2px var(--color-secondary);
}
button, input[type="submit"] {
  font-family: var(--font-display);
  font-size: 1rem;
  border: none;
  border-radius: var(--radius);
  padding: 10px 28px;
  background: var(--color-secondary);
  color: var(--color-text-light);
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition);
  box-shadow: 0 1px 6px var(--color-shadow);
}
button:hover, button:focus, input[type="submit"]:hover, input[type="submit"]:focus {
  background: var(--color-primary);
}

/* =====================
   12. Miscellaneous
   ===================== */
img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  display: block;
}
hr {
  border: none;
  border-top: 1px solid var(--color-muted);
  margin: 32px 0;
}

/* =====================
   13. Responsive Utilities
   ===================== */
@media (max-width: 600px) {
  h1 {
    font-size: 1.45rem;
  }
  h2 {
    font-size: 1.15rem;
  }
  .footer-contact {
    font-size: 0.92rem;
  }
}

/* =====================
   14. Elegant Classic Details
   ===================== */
section {
  border: 1px solid var(--color-accent);
}
.card, .testimonial-card, .faq-accordion > div, .features-grid > div, .services-list > div, .service-grid > div, .system-grid > div, .team-grid > div, .image-gallery > div {
  border: 1px solid var(--color-muted);
}

/* Subtle hover for all cards */
.card:hover, .testimonial-card:hover, .faq-accordion > div:hover, .features-grid > div:hover, .services-list > div:hover, .service-grid > div:hover, .system-grid > div:hover, .team-grid > div:hover, .image-gallery > div:hover {
  border-color: var(--color-secondary);
}

/* Elegant spacing for lists */
ul, ol {
  margin-bottom: 1.2em;
  padding-left: 1.5em;
}

/* Elegant blockquote style for testimonials */
.testimonial-card p {
  position: relative;
  padding-left: 18px;
}
.testimonial-card p:before {
  content: '“';
  font-size: 2.2em;
  color: var(--color-secondary);
  position: absolute;
  left: 0;
  top: -0.2em;
  font-family: var(--font-display);
  opacity: 0.3;
}

/* =====================
   15. Accessibility
   ===================== */
:focus {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

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

/* =====================
   17. Elegant Classic Animations
   ===================== */
.card, .testimonial-card, .faq-accordion > div, .features-grid > div, .services-list > div, .service-grid > div, .system-grid > div, .team-grid > div, .image-gallery > div {
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}
.cta-button, button, input[type="submit"] {
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
}

/* =====================
   18. Elegant Classic Section Spacing
   ===================== */
.section {
  margin-bottom: 60px;
  padding: 40px 20px;
}
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.card {
  margin-bottom: 20px;
  position: relative;
}
.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;
}

/* =====================
   19. Prevent Overlapping
   ===================== */
.card, .testimonial-card, .faq-accordion > div, .features-grid > div, .services-list > div, .service-grid > div, .system-grid > div, .team-grid > div, .image-gallery > div {
  margin-bottom: 20px;
}

/* =====================
   20. Print Styles (optional)
   ===================== */
@media print {
  header, footer, .cookie-banner, .mobile-menu { display: none !important; }
  section, .container { box-shadow: none !important; border: none !important; }
}

/* =====================
   21. End of CSS
   ===================== */