/* ----------------------------------------------------
   RaumBrücke Dortmund – style.css
   Professional Corporate – Blue/Gray Palette
   Only Flexbox, No CSS Grid or Columns! Mobile-first.
   ---------------------------------------------------- */
/* --- Reset & Base Normalize --- */
html { box-sizing: border-box; }
*, *:before, *:after { box-sizing: inherit; }
body, h1, h2, h3, h4, h5, h6, p, ul, ol, li, figure, figcaption { margin: 0; padding: 0; font-weight: normal; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.2s; }
button { font: inherit; }
:focus { outline: 2px solid #84A98C; outline-offset: 2px; }
html { scroll-behavior: smooth; }

/* --- Brand Variables (fallbacks for wide support) --- */
:root {
  --color-primary: #234567;
  --color-secondary: #84A98C;
  --color-accent: #F3EBE3;
  --color-bg: #F9FAFB;
  --color-gray-100: #E8EEF2;
  --color-gray-200: #CBD5E1;
  --color-gray-800: #223043;
  --color-gray-900: #16222f;
  --color-white: #fff;
  --color-black: #111;
  --font-display: 'Montserrat', Arial, sans-serif;
  --font-body: 'Roboto', Arial, sans-serif;
  --border-radius: 10px;
  --shadow-xs: 0 1px 3px rgba(35,69,103,0.06);
  --shadow-md: 0 6px 24px rgba(35,69,103,0.10);
}

body {
  font-family: var(--font-body), Arial, sans-serif;
  font-size: 16px;
  color: var(--color-gray-900);
  background: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

section {
  margin-bottom: 60px;
  padding: 40px 0;
  background: none;
  position: relative;
}

/* --- Typography Hierarchy --- */
h1, h2, h3, h4 {
  font-family: var(--font-display), Arial, sans-serif;
  letter-spacing: 0.01em;
  color: var(--color-primary);
  font-weight: 700;
}
h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
  line-height: 1.17;
}
h2 {
  font-size: 1.75rem;
  margin-bottom: 18px;
  line-height: 1.18;
}
h3 {
  font-size: 1.25rem;
  margin-bottom: 14px;
  color: var(--color-gray-800);
}
h4 {
  font-size: 1rem;
  color: var(--color-gray-800);
}
p, li {
  color: var(--color-gray-900);
  font-size: 1rem;
  margin-bottom: 12px;
}
strong { color: var(--color-primary); font-weight: 600; }

.text-section { margin-bottom: 24px; }
.text-section h3 { margin-top: 22px; }
.text-section ul, .text-section ol { margin: 10px 0 20px 20px; }
.text-section ul li, .text-section ol li {
  margin-bottom: 10px;
  position: relative;
}
.text-section ul li:before {
  content: '\2022';
  color: var(--color-secondary);
  display: inline-block;
  width: 1em;
  margin-left: -1em;
}

/* --- Layout Patterns --- */
.content-wrapper {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: flex-start;
  justify-content: flex-start;
}
.feature-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 18px;
  width: 100%;
}
.feature-grid > div {
  flex: 1 1 270px;
  min-width: 220px;
  background: var(--color-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-xs);
  padding: 24px 20px 20px 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  transition: box-shadow 0.22s;
}
.feature-grid > div:hover {
  box-shadow: var(--shadow-md);
}

.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.card {
  background: var(--color-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-xs);
  margin-bottom: 20px;
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 24px 28px;
  min-width: 260px;
}

.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;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  background: var(--color-accent);
  border-radius: var(--border-radius);
  padding: 20px 24px;
  margin-bottom: 24px;
  box-shadow: 0 2px 8px rgba(35,69,103,0.08);
  color: var(--color-gray-900);
  max-width: 460px;
}
.testimonial-card strong { color: var(--color-primary); line-height: 1.5; }
.testimonial-card p { font-size: 0.95rem; color: var(--color-gray-900); margin: 0; }

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

/* --- Hero Section --- */
main > section:first-of-type {
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 0 0 24px 24px;
}
main > section:first-of-type h1, main > section:first-of-type h2 {
  color: var(--color-white);
}

/* --- Buttons --- */
.cta-btn {
  background: var(--color-secondary);
  color: var(--color-white);
  font-family: var(--font-display);
  padding: 12px 32px;
  border: none;
  border-radius: 24px;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(132,169,140,0.08);
  margin-top: 16px;
  transition: background .18s, color .18s, transform 0.15s, box-shadow 0.23s;
  display: inline-block;
}
.cta-btn:hover, .cta-btn:focus {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 8px 32px rgba(35,69,103,0.11);
}

/* --- Header & Navigation --- */
header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-100);
  box-shadow: 0 2px 8px rgba(35,69,103,0.03);
  position: sticky;
  top: 0;
  z-index: 1000;
}
header .container {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
header img { height: 44px; margin-right: 24px; }
.main-nav {
  display: flex;
  gap: 28px;
  align-items: center;
  margin-right: 24px;
}
.main-nav a {
  font-family: var(--font-body);
  color: var(--color-primary);
  font-weight: 500;
  font-size: 1rem;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.18s, border-bottom 0.18s;
}
.main-nav a.active,
.main-nav a:hover,
.main-nav a:focus {
  color: var(--color-secondary);
  border-bottom: 2px solid var(--color-secondary);
}
.mobile-menu-toggle {
  display: none;
  background: none;
  color: var(--color-primary);
  border: none;
  font-size: 2rem;
  padding: 8px 10px 6px 10px;
  border-radius: 8px;
  transition: background 0.15s;
  cursor: pointer;
  z-index: 2002;
}
.mobile-menu-toggle:hover, .mobile-menu-toggle:focus {
  background: var(--color-gray-100);
  color: var(--color-secondary);
}

/* --- Mobile Menu --- */
.mobile-menu {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  background: var(--color-primary);
  color: var(--color-white);
  z-index: 3000;
  transform: translateX(100%);
  transition: transform 0.32s cubic-bezier(.86,0,.07,1);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 32px 24px 24px 24px;
  gap: 24px;
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu-close {
  align-self: flex-end;
  background: none;
  color: var(--color-white);
  font-size: 2rem;
  border: none;
  cursor: pointer;
  z-index: 3001;
  padding: 6px 9px 4px 9px;
  border-radius: 8px;
  transition: background 0.1s;
}
.mobile-menu-close:hover, .mobile-menu-close:focus {
  background: var(--color-secondary);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 22px;
  width: 100%;
  align-items: flex-start;
}
.mobile-nav a {
  color: var(--color-white);
  font-size: 1.2rem;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  font-family: var(--font-display);
  font-weight: 600;
  border-radius: 3px;
  transition: background 0.15s, color 0.17s;
  width: 100%;
  display: block;
}
.mobile-nav a:hover, .mobile-nav a:focus {
  background: var(--color-secondary);
  color: var(--color-primary);
}

/* --- Footer --- */
footer {
  background: var(--color-gray-100);
  padding: 48px 0 24px 0;
  border-top: 1px solid var(--color-gray-200);
  margin-top: 60px;
}
footer .container {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.footer-nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.footer-nav a {
  color: var(--color-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  opacity: 0.8;
  transition: opacity 0.12s, color 0.22s;
}
.footer-nav a:hover, .footer-nav a:focus {
  opacity: 1;
  color: var(--color-secondary);
}
.footer-contact p, .footer-contact a {
  font-size: 0.98rem;
  color: var(--color-gray-800);
  margin-bottom: 6px;
  opacity: 0.92;
}
.footer-contact a:hover {
  color: var(--color-secondary);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 12px;
}
.footer-brand img { height: 34px; }
.footer-brand span {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-gray-900);
  opacity: 0.95;
}

/* --- Forms & Inputs --- */
input, textarea, select {
  font: inherit;
  padding: 10px 14px;
  border-radius: 7px;
  border: 1px solid var(--color-gray-200);
  background: var(--color-white);
  color: var(--color-gray-900);
  width: 100%;
  margin-bottom: 18px;
  transition: border 0.14s;
}
input:focus, textarea:focus, select:focus {
  border: 1.5px solid var(--color-secondary);
}

label {
  display: block;
  color: var(--color-primary);
  font-family: var(--font-display);
  margin-bottom: 6px;
}

/* --- Cookie Consent Banner --- */
.cookie-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  width: 100vw;
  background: var(--color-white);
  box-shadow: 0 -4px 24px rgba(35,69,103,0.11);
  border-top: 2px solid var(--color-primary);
  padding: 24px 18px 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-start;
  z-index: 4000;
  animation: fadeInUp 0.65s cubic-bezier(.32,.75,.39,1.2) 1;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}
.cookie-banner strong {
  color: var(--color-primary);
}
.cookie-buttons {
  display: flex;
  gap: 14px;
  margin-top: 7px;
}
.cookie-btn, .cookie-settings-btn {
  background: var(--color-secondary);
  border: none;
  color: var(--color-white);
  padding: 8px 22px;
  border-radius: 20px;
  font-size: 1rem;
  font-family: var(--font-display);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.16s, color 0.12s, box-shadow 0.2s;
  box-shadow: 0 1px 8px rgba(132,169,140,0.07);
}
.cookie-btn.accept {
  background: var(--color-primary);
}
.cookie-btn.reject {
  background: #888e97;
}
.cookie-btn:hover, .cookie-btn:focus, .cookie-settings-btn:hover, .cookie-settings-btn:focus {
  background: var(--color-gray-900);
  color: var(--color-white);
}
.cookie-settings-btn {
  background: var(--color-accent);
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  margin-left: 3px;
}
.cookie-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(35,69,103,0.48);
  z-index: 4100;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s;
}
@keyframes fadeIn {
  from { opacity: 0; } to { opacity: 1; }
}
.cookie-modal {
  background: var(--color-white);
  border-radius: 18px;
  box-shadow: 0 6px 36px rgba(35,69,103,0.16);
  padding: 30px 24px 20px 24px;
  min-width: 320px;
  max-width: 440px;
  z-index: 4110;
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: slideDown 0.28s cubic-bezier(.77,0,.18,1.15);
}
@keyframes slideDown {
  from { transform: translateY(-38px); opacity: 0; } to { transform: none; opacity: 1; }
}
.cookie-modal h3 {
  font-size: 1.05rem;
  margin-bottom: 7px;
  color: var(--color-primary);
}
.cookie-category {
  display: flex; align-items: center; gap: 13px; margin-bottom: 12px;
}
.cookie-category label {
  color: var(--color-gray-900);
  font-weight: 500;
  margin-bottom: 0;
  font-size: 1rem;
}
.cookie-modal-actions {
  display: flex;
  gap: 14px;
  margin-top: 10px;
  justify-content: flex-end;
}
.cookie-modal-close {
  position: absolute;
  top: 15px; right: 18px;
  background: none;
  color: var(--color-primary);
  font-size: 1.2rem;
  border: none;
  cursor: pointer;
  z-index: 4111;
}
.cookie-modal-close:hover, .cookie-modal-close:focus { color: var(--color-secondary); }

/* --- Misc. Utility Classes --- */
.mb-0 { margin-bottom: 0 !important; }
.mb-20 { margin-bottom: 20px !important; }
.mt-24 { margin-top: 24px !important; }
.pt-32 { padding-top: 32px !important; }
.w-100 { width: 100%; }

/* --- Tables (for GDPR/policy pages) --- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0 24px 0;
}
thead th { background: var(--color-gray-100); }
th, td {
  padding: 10px 12px;
  border: 1px solid var(--color-gray-200);
  font-size: 1rem;
}

/* --- Responsive Design --- */
@media (max-width: 1100px) {
  .container { max-width: 940px; }
}
@media (max-width: 900px) {
  .container { max-width: 96vw; }
}
@media (max-width: 768px) {
  section { padding: 28px 0; margin-bottom: 44px; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.3rem; }
  .container { padding-left: 11px; padding-right: 11px; }
  .main-nav { display: none; }
  .mobile-menu-toggle { display: block; }
  .feature-grid, .content-wrapper, .content-grid, .card-container { flex-direction: column; gap: 18px; }
  .testimonial-card { max-width: 100%; }
  header .cta-btn { display: none; }
  footer .container { gap: 14px; }
}
@media (max-width: 500px) {
  h1 { font-size: 1.35rem; }
  h2 { font-size: 1.1rem; }
  .footer-brand span,
  .footer-contact p { font-size: 0.9rem; }
  .cookie-modal,
  .cookie-banner {padding-left: 11px;padding-right: 11px;}
}

/* --- Animations/Micro-interactions --- */
a, .cta-btn, .cookie-btn, .cookie-settings-btn {
  transition: background 0.19s, color 0.17s, border 0.18s, box-shadow 0.18s, transform 0.14s;
}
.feature-grid > div:hover, .card:hover {
  transform: translateY(-3px) scale(1.012);
  box-shadow: 0 8px 32px rgba(35,69,103,0.12);
}

/* --- Spacing/Gap requirements --- */
.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; }

/* --- Ensure Readable Contrast --- */
.testimonial-card, .cookie-banner, .cookie-modal {
  color: var(--color-gray-900) !important;
  background: var(--color-accent);
}
.testimonial-card strong, .testimonial-card p {
  color: var(--color-gray-900);
}

/* --- Decorative Borders and Shadows for Professional Aesthetic --- */
.card, .feature-grid > div, .testimonial-card, .cookie-modal {
  border: 1.5px solid var(--color-gray-100);
  box-shadow: var(--shadow-xs);
}
.feature-grid > div:hover, .card:hover, .testimonial-card:hover {
  box-shadow: var(--shadow-md);
}

/* --- Prevent Overlapping/Ensure Whitespaces --- */
.card, .feature-grid > div, .testimonial-card {
  margin-bottom: 20px;
}
.feature-grid, .card-container, .content-grid { gap: 24px; }
.content-wrapper { gap: 24px; }
section > .container { margin-bottom: 0; }

/* --- Accessibility --- */
.skip-link {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
  z-index: 6000;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  padding: 8px 16px;
  background: var(--color-secondary);
  color: var(--color-white);
  border-radius: 6px;
}

/* --- Utility .hide (for JS toggles) --- */
.hide { display: none!important; }

/* END OF CSS */