/*
 * style.css
 * BauKonzept München: Sophisticated Monochrome Responsive CSS
 * Brand-color aware, mobile-first, only flexbox, strict monochrome_sophisticated
*/

/* CSS RESET & NORMALIZE */
html {
  box-sizing: border-box;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
*, *:before, *:after {
  box-sizing: inherit;
  margin: 0;
  padding: 0;
}
body {
  font-family: 'Open Sans', Arial, sans-serif;
  font-size: 16px;
  color: #222;
  background: #fff;
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}
ul, ol {
  margin-left: 1.5em;
  margin-bottom: 1em;
}
section {
  margin-bottom: 60px;
  padding: 40px 20px;
}
a {
  color: #18304D;
  text-decoration: none;
  transition: color 0.2s cubic-bezier(.5,.8,.5,1);
}
a:focus, a:hover {
  color: #257C45;
  text-decoration: underline;
}

/*--- TYPOGRAPHY --*/
h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', Arial, Helvetica, sans-serif;
  color: #101010;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
  font-weight: 700;
}
h1 { font-size: 2.7rem; line-height: 1.15; margin-bottom: 24px; }
h2 { font-size: 2rem; line-height: 1.2; margin-bottom: 20px; }
h3 { font-size: 1.25rem; margin-bottom: 14px; font-weight: 600; }
h4, h5, h6 { font-size: 1.05rem; margin-bottom: 10px; font-weight: 500; }
p { margin-bottom: 16px; }
strong, b { font-weight: 700; }
blockquote {
  border-left: 4px solid #2C2C2C;
  padding-left: 20px;
  font-style: italic;
  color: #222;
  margin-bottom: 10px;
  background: #f8f8f8;
}
cite {
  display: block;
  margin-top: 3px;
  font-size: 0.98em;
  color: #757575;
}

/*--- CONTAINER ---*/
.container {
  width: 100%;
  max-width: 1090px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.content-wrapper {
  display: flex;
  flex-direction: column;
  gap: 24px;
  width: 100%;
}

/*--- HEADER & NAV ---*/
header {
  background: #fff;
  border-bottom: 1px solid #E5E5E5;
  position: sticky;
  top: 0;
  z-index: 100;
}
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px 16px 24px;
  gap: 24px;
}
.top-bar img {
  height: 38px;
  width: auto;
  margin-right: 20px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}
.main-nav a {
  font-family: 'Montserrat', Arial, Helvetica, sans-serif;
  font-size: 1rem;
  color: #111;
  font-weight: 500;
  letter-spacing: 0.1px;
  padding: 4px 0;
  transition: color 0.2s;
  position: relative;
}
.main-nav a:hover, .main-nav a:focus {
  color: #18304D;
}
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background: #101010;
  color: #fff;
  border: none;
  border-radius: 30px;
  font-family: 'Montserrat', Arial, Helvetica, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  cursor: pointer;
  box-shadow: 0 2px 16px 0 rgba(24,48,77,0.06);
  transition: background 0.18s cubic-bezier(.25,.9,.35,1), color 0.15s;
}
.cta-button:hover, .cta-button:focus {
  background: #18304D;
  color: #fff;
  box-shadow: 0 3px 18px 0 rgba(24,48,77,0.12);
}

/*--- MOBILE NAVIGATION ---*/
.mobile-menu-toggle {
  display: none;
  background: none;
  color: #222;
  border: none;
  font-size: 2.1rem;
  margin-left: 8px;
  cursor: pointer;
  z-index: 120;
}
.mobile-menu {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 100%;
  background: rgba(12,12,12,0.98);
  color: #fff;
  z-index: 200;
  transform: translateX(-100%);
  transition: transform 0.33s cubic-bezier(.52,.12,.34,1.01);
  padding: 0;
}
.mobile-menu.open {
  transform: translateX(0);
}
.mobile-menu-close {
  align-self: flex-end;
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  margin: 22px 30px 18px 0;
  cursor: pointer;
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 28px;
  width: 100%;
  padding: 34px 30px;
}
.mobile-nav a {
  font-size: 1.2rem;
  color: #fff;
  font-family: 'Montserrat', Arial, Helvetica, sans-serif;
  font-weight: 500;
  border-left: 3px solid #fff0;
  padding-left: 15px;
  padding-right: 5px;
  transition: color 0.17s, border-color 0.17s;
}
.mobile-nav a:focus, .mobile-nav a:hover {
  color: #F4E9DC;
  border-left: 3px solid #fff;
}
@media (max-width: 1100px) {
  .top-bar {
    flex-direction: column;
    gap: 16px;
    align-items: stretch;
    padding: 10px 10px 8px 10px;
  }
  .main-nav {
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 18px;
  }
}
@media (max-width: 900px) {
  .main-nav, .cta-button {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
    position: absolute;
    top: 18px;
    right: 18px;
  }
}
@media (max-width: 900px) {
  header {
    padding-bottom: 2px;
  }
}

/*--- FLEX LAYOUT HELPERS ---*/
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 32px;
}
.card {
  margin-bottom: 20px;
  position: relative;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 3px 18px rgba(30,30,30,0.11);
  padding: 36px 28px;
  flex: 1 1 340px;
  min-width: 270px;
  max-width: 100%;
  transition: box-shadow 0.2s;
}
.card:hover, .card:focus-within {
  box-shadow: 0 7px 24px rgba(30,30,30,0.17);
  z-index: 2;
}
.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;
  margin-bottom: 30px;
}
@media (max-width: 768px) {
  .text-image-section {
    flex-direction: column;
    gap: 18px;
    align-items: flex-start;
  }
}
.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}

/*--- FEATURES GRID ---*/
.features-grid, .features {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-top: 10px;
}
.feature {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: #fafafa;
  border-radius: 12px;
  box-shadow: 0 2px 11px rgba(26,26,26,0.06);
  padding: 32px 28px 30px 28px;
  min-width: 220px;
  flex: 1 1 220px;
  max-width: 350px;
  transition: box-shadow 0.2s;
}
.feature img {
  height: 38px;
  margin-bottom: 12px;
  filter: grayscale(100%) contrast(1.2);
}
.feature:hover {
  box-shadow: 0 5px 16px rgba(26,26,26,0.15);
  background: #f0f0f0;
}
.feature h3 {
  color: #101010;
  margin-bottom: 7px;
}

/*--- PROCESS STEPS / TIMELINE ---*/
.process-steps, .process-timeline {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 28px;
}
.step, .timeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 170px;
  flex: 1 1 170px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 1px 6px 0 rgba(18,18,18,0.08);
  padding: 19px 14px 17px;
  margin-bottom: 20px;
  transition: box-shadow 0.14s;
}
.step img, .timeline-step img {
  margin-bottom: 11px;
  height: 32px;
  filter: grayscale(80%);
}
.step span, .timeline-step h3, .timeline-step span {
  font-size: 1rem;
  color: #222;
}
.timeline-step h3 {
  margin-bottom: 8px;
  font-size: 1.03rem;
}
.step:hover, .timeline-step:hover {
  box-shadow: 0 3px 15px rgba(18,18,18,0.15);
}

/*--- TESTIMONIALS ---*/
.testimonial-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 28px 20px 20px;
  background: #fff;
  color: #101010;
  border-radius: 15px;
  box-shadow: 0 2px 14px rgba(24,48,77,0.13);
  margin-bottom: 20px;
  font-size: 1.08rem;
  transition: box-shadow 0.17s;
}
.testimonial-card:hover {
  box-shadow: 0 5px 20px 0 rgba(24,48,77,0.19);
}
.satisfaction-badge {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #222;
  color: #fff;
  border-radius: 24px;
  padding: 8px 22px 8px 14px;
  font-size: 1rem;
  font-family: 'Montserrat', Arial, Helvetica, sans-serif;
  box-shadow: 0 1px 8px rgba(24,48,77,.14);
  margin-top: 14px;
}
.satisfaction-badge img {
  height: 28px;
  filter: invert(1) grayscale(100%) brightness(1.3);
  margin-bottom: 0;
}

/*--- PROJECTS (Referenzen) ---*/
.project-list {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 16px;
  justify-content: stretch;
}
.project-card {
  flex: 1 1 280px;
  background: #fff;
  border-radius: 15px;
  padding: 30px 20px 24px;
  min-width: 240px;
  max-width: 380px;
  box-shadow: 0 1px 13px 0 rgba(18,18,18,0.09);
  margin-bottom: 20px;
  transition: box-shadow 0.18s;
}
.project-card:hover {
  box-shadow: 0 2px 23px rgba(24,48,77,0.17);
}
.project-card h3 {
  margin-bottom: 10px;
  color: #18304D;
}
.customer-feedback {
  margin-top: 12px;
  font-style: italic;
  font-size: 0.97em;
  color: #232323;
  border-left: 3px solid #F4E9DC;
  padding-left: 15px;
  margin-bottom: 0;
}
.customer-feedback span {
  display: block;
  color: #757575;
  font-size: 0.95em;
  margin-top: 3px;
}

/*--- FAQ ---*/
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.faq-item {
  background: #fafafa;
  border-radius: 11px;
  box-shadow: 0 1px 5px rgba(13,13,13,0.07);
  padding: 24px 19px 22px 22px;
  transition: box-shadow 0.12s;
}
.faq-item:hover {
  box-shadow: 0 4px 14px rgba(13,13,13,0.11);
}
.faq-item h2 {
  font-size: 1.13rem;
  color: #18304D;
  margin-bottom: 8px;
}
.faq-contact-prompt {
  margin-top: 22px;
  padding: 22px 16px 18px 16px;
  background: #fff;
  border: 1px solid #e4e4e4;
  border-radius: 15px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 13px;
}

/*--- GENERAL BUTTON STYLES ---*/
button, .cta-button {
  font-family: 'Montserrat', Arial, Helvetica, sans-serif;
  font-weight: 700;
  font-size: 1rem;
  border: none;
  border-radius: 30px;
  background: #101010;
  color: #fff;
  padding: 12px 28px;
  cursor: pointer;
  transition: background 0.17s, color 0.15s, box-shadow 0.16s;
}
button:hover, button:focus, .cta-button:hover, .cta-button:focus {
  background: #18304D;
  color: #fff;
  box-shadow: 0 2px 14px rgba(24,48,77,.14);
}

/*--- ALERTS & CONFIRMATION ---*/
.confirmation-message {
  background: #f9f9f9;
  border-left: 4px solid #222;
  border-radius: 10px;
  padding: 28px 18px 24px;
  margin-bottom: 18px;
}

/*--- FOOTER ---*/
footer {
  background: #101010;
  color: #f3f3f3;
  padding-top: 32px;
  padding-bottom: 24px;
  margin-top: 60px;
}
.footer-main {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 32px;
  padding: 0 20px 12px 20px;
  max-width: 1100px;
  margin: 0 auto;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: flex-start;
}
.footer-nav a {
  color: #f3f3f3;
  font-family: 'Montserrat', Arial, Helvetica, sans-serif;
  font-size: 0.97rem;
  opacity: 0.90;
  transition: color 0.16s, opacity .13s;
}
.footer-nav a:hover, .footer-nav a:focus {
  color: #F4E9DC;
  opacity: 1;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.99rem;
}
.footer-contact span {
  display: flex;
  align-items: center;
  gap: 7px;
  color: #ededea;
  line-height: 1.7;
}
.footer-contact img {
  height: 19px;
  filter: grayscale(100%) brightness(2);
}
.footer-bottom {
  border-top: 1px solid #343434;
  padding-top: 16px;
  margin-top: 14px;
  text-align: center;
  color: #b7b7b7;
  font-size: 0.92rem;
  letter-spacing: 0.2px;
}

/*--- MAP PLACEHOLDER (Kontakt) ---*/
.map-placeholder {
  background: #f9f9f9;
  border-radius: 13px;
  padding: 20px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.map-placeholder img {
  height: 38px;
  filter: grayscale(90%) contrast(1.1);
}

/*--- COOKIE CONSENT BANNER ---*/
.cookie-banner {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100vw;
  background: #222;
  color: #fff;
  z-index: 9000;
  padding: 22px 16px 22px 18px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
  box-shadow: 0 -2px 18px rgba(24,38,55,0.2);
  font-size: 1rem;
  animation: cookieBannerIn 0.6s cubic-bezier(.34,1.56,.52,1) 0s 1;
}
@keyframes cookieBannerIn {
  0% { opacity: 0; transform: translateY(80px); }
  100%{ opacity: 1; transform: none; }
}
.cookie-banner .cookie-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}
.cookie-banner button {
  background: #18304D;
  color: #fff;
  padding: 11px 24px;
  border-radius: 24px;
  border: none;
  font-size: 1rem;
  font-family: 'Montserrat', Arial, Helvetica, sans-serif;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.14s, box-shadow .15s;
}
.cookie-banner button:hover, .cookie-banner button:focus {
  background: #101010;
  box-shadow: 0 1px 9px 0 rgba(16,16,16,0.10);
}

.cookie-settings-modal {
  position: fixed;
  left: 0; right: 0; top: 0; bottom: 0;
  background: rgba(6, 6, 6, .92);
  color: #fff;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: cookieModalSlideIn .4s cubic-bezier(.54,1.5,.44,.92);
}
@keyframes cookieModalSlideIn {
  0% { opacity: 0; transform: translateY(80px); }
  100%{ opacity: 1; transform: none; }
}
.cookie-settings-content {
  background: #fff;
  color: #111;
  border-radius: 18px;
  box-shadow: 0 7px 36px 0 rgba(24,48,77,0.30);
  max-width: 400px;
  width: 95vw;
  padding: 44px 24px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  position: relative;
}
.cookie-settings-content h3 {
  margin-bottom: 10px;
  font-family: 'Montserrat', Arial, Helvetica, sans-serif;
  font-size: 1.11rem;
}
.cookie-settings-content label {
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  margin-bottom: 10px;
}
.cookie-settings-content input[type='checkbox'] {
  accent-color: #18304D;
  width: 20px;
  height: 20px;
}
.cookie-settings-close {
  position: absolute;
  top: 15px; right: 20px;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: #101010;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity .13s;
}
.cookie-settings-close:hover { opacity: 1; }
.cookie-settings-modal .cookie-actions {
  display: flex;
  gap: 16px;
  justify-content: flex-end;
  margin-top: 12px;
}
.cookie-settings-modal .cookie-actions button {
  background: #18304D;
  color: #fff;
  padding: 8px 22px;
  border-radius: 20px;
  font-size: 1rem;
  font-family: 'Montserrat', Arial, Helvetica, sans-serif;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background .13s;
}
.cookie-settings-modal .cookie-actions button:hover,
.cookie-settings-modal .cookie-actions button:focus {
  background: #101010;
}

/*--- MISC ---*/
.text-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 16px;
}
.text-section ul,
.text-section ol {
  margin-bottom: 10px;
  margin-left: 1.5em;
  list-style: disc inside;
}
.text-section li {
  padding-left: 6px;
  margin-bottom: 7px;
  font-size: 1.02rem;
}

ul li,
ol li {
  margin-bottom: 7px;
}

ol {
  list-style: decimal inside;
}

/*--- UTILITIES & SPACING ---*/
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.gap-1 { gap: 8px; }
.gap-2 { gap: 20px; }
.gap-3 { gap: 24px; }

/*--- RESPONSIVE BREAKPOINTS ---*/
@media (max-width: 980px) {
  .features-grid, .process-steps, .process-timeline, .project-list {
    flex-direction: column;
    gap: 16px;
  }
  .feature, .step, .timeline-step, .project-card {
    max-width: 100%;
    min-width: 0;
    width: 100%;
  }
  .footer-main {
    flex-direction: column;
    gap: 16px;
    align-items: stretch;
  }
}
@media (max-width: 500px) {
  section {
    padding: 22px 7vw 22px 7vw;
    margin-bottom: 32px;
  }
  .testimonial-card, .project-card, .confirmation-message {
    padding: 17px 8px 17px 12px;
  }
  .footer-contact span, .footer-nav {
    font-size: 0.96rem;
  }
}

/*--- MICRO-INTERACTIONS ---*/
.cta-button, button, .feature, .timeline-step, .step, .card, .testimonial-card, .project-card, .faq-item {
  transition: box-shadow .18s, background .15s, color .13s;
}

.cta-button:active {
  background: #222;
  color: #fff;
}

/*--- Z-INDEX GUARDS ---*/
header, .mobile-menu, .cookie-banner, .cookie-settings-modal {
  z-index: 1000;
}

/*--- FORM ELEMENTS (future proof) ---*/
input, textarea {
  font-family: inherit;
  font-size: 1rem;
  border: 1px solid #d8d8d8;
  padding: 10px;
  border-radius: 7px;
  background: #fff;
  color: #101010;
  transition: border .14s;
  margin-bottom: 14px;
  width: 100%;
}
input:focus, textarea:focus {
  outline: 2px solid #18304D;
  border-color: #18304D;
}

/*--- Scrollbar Styling (Webkit) ---*/
::-webkit-scrollbar {
  width: 8px;
  background: #e9e9e9;
}
::-webkit-scrollbar-thumb {
  background: #bdbdbd;
  border-radius: 7px;
}
::-webkit-scrollbar-thumb:hover {
  background: #979797;
}

/*--- END OF style.css ---*/