/* ===================================================
   FluidSecure Architektur - Minimalist Responsive CSS
   ===================================================
   - Brand font: Montserrat (display), Open Sans (body)
   - Colors: #1C1E21 (primary), #B3C0CC (secondary), #EABB56 (accent)
   - Mobile-first, all layouts flexbox only (NO CSS Grid!)
   - Consistent minimalist spacing, buttons, cards, effects
=======================================================*/

/* === CSS RESET & NORMALIZATION === */
html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video {
  margin: 0;
  padding: 0;
  border: 0;
  font: inherit;
  vertical-align: baseline;
  box-sizing: border-box;
}
/* Set core root defaults */
html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  background: #fff;
}
body {
  min-height: 100vh;
  font-family: 'Open Sans', Arial, sans-serif;
  font-size: 1rem;
  color: #1C1E21;
  background: #fff;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-weight: 400;
}
*::selection {
  background: #b3c0cc44;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: #1C1E21;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
  transition: color .2s;
}
a:hover, a:focus {
  color: #EABB56;
  outline: none;
}
:focus-visible {
  outline: 2px solid #B3C0CC;
}

/* === TYPOGRAPHY SCALE === */
h1 {
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #1C1E21;
  margin-bottom: 24px;
}
h2 {
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.2;
  color: #1C1E21;
  margin-bottom: 18px;
}
h3 {
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 1.12rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: #1C1E21;
}
h4, h5, h6 {
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 1rem;
  color: #1C1E21;
}
p, ul, ol {
  font-size: 1rem;
  color: #1C1E21;
  margin-bottom: 16px;
}
strong, b {
  font-weight: 700;
  color: #1C1E21;
}
ul, ol {
  padding-left: 22px;
}
li {
  margin-bottom: 10px;
}
hr {
  border: 0;
  height: 1px;
  background: #F0F2F4;
  margin: 28px 0;
}

/* === CONTAINER & SECTION SPACING === */
.container {
  width: 100%;
  max-width: 1110px;
  margin: 0 auto;
  padding-left: 22px;
  padding-right: 22px;
  box-sizing: border-box;
}
section {
  margin-bottom: 60px;
  padding: 40px 20px;
  background: #fff;
}

.content-wrapper {
  margin-top: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Card pattern & Responsive grid using flex */
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 32px;
}
.card {
  flex: 1 1 250px;
  margin-bottom: 20px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 2px 12px 0 rgba(28, 30, 33, 0.06);
  padding: 32px 24px;
  position: relative;
  transition: box-shadow 0.2s;
  min-width: 220px;
}
.card:hover, .card:focus-within {
  box-shadow: 0 4px 20px 0 rgba(28,30,33,0.09);
  z-index: 1;
}

.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: 12px;
  padding: 20px;
  background: #F7F9FA;
  border-radius: 12px;
  box-shadow: 0 1px 6px 0 rgba(28,30,33,0.04);
  margin-bottom: 20px;
  font-size: 1rem;
  color: #1C1E21;
  min-width: 230px;
  max-width: 540px;
}
.testimonial-card strong {
  font-size: 1rem;
  color: #1C1E21;
  letter-spacing: 0.01em;
  font-weight: 700;
  margin-top: 2px;
}
.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}

/* ARTICLE TEASER & TAGS */
.blog-article-teasers {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.blog-article-teasers article {
  flex: 1 1 260px;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 1px 5px 0 rgba(28,30,33,0.04);
  padding: 22px 20px 18px 20px;
  transition: box-shadow .2s;
}
.blog-article-teasers article:hover {
  box-shadow: 0 4px 16px 0 rgba(28,30,33,0.09);
}
.category-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 18px;
}
.category-tags span {
  font-size: 0.93em;
  color: #1C1E21;
  background: #ECF2F6;
  border-radius: 8px;
  padding: 5px 16px;
  font-weight: 500;
  letter-spacing: .02em;
}

.address-block, .address {
  background: #F7F9FA;
  border-radius: 10px;
  padding: 20px 16px;
  font-size: 1rem;
  color: #1C1E21;
  margin-bottom: 12px;
}

.project-highlights ul, .usp-highlights, .ecological-solutions {
  margin-bottom: 14px;
}
.usp-highlights, .project-highlights, .ecological-solutions {
  font-size: 1rem;
  color: #1C1E21;
}
.project-highlights strong {
  margin-bottom: 8px;
  display: inline-block;
}

.cta-banner {
  background: #F0F2F4;
  border-radius: 16px;
  padding: 36px 24px;
  box-shadow: 0px 2px 8px 0 rgba(28,30,33,0.04);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  margin: 0 auto;
  max-width: 700px;
}
/* === HEADER & NAVIGATION === */
header {
  background: #fff;
  border-bottom: 1px solid #F0F2F4;
  position: sticky;
  top: 0;
  z-index: 100;
}
header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 76px;
}
header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}
header nav a {
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 1rem;
  color: #1C1E21;
  text-decoration: none;
  position: relative;
  padding: 4px 2px;
  transition: color .2s;
}
header nav a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0; height: 2px;
  background: transparent;
  border-radius: 6px;
  transition: background .18s;
}
header nav a:hover::after, header nav a:focus::after {
  background: #EABB56;
}
header nav a.active, header nav a[aria-current='page'] {
  color: #EABB56;
}

header img {
  height: 44px;
  width: auto;
}
header .button.primary {
  margin-left: 18px;
}

/* HAMBURGER BUTTON (only shown on mobile) */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: #1C1E21;
  padding: 4px 9px;
  margin-left: 18px;
  border-radius: 7px;
  transition: background .2s;
}
.mobile-menu-toggle:focus, .mobile-menu-toggle:hover {
  background: #F0F2F4;
  outline: none;
}

/* === MOBILE MENU OVERLAY === */
.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(28,30,33,0.97);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 40px 24px 24px 24px;
  transform: translateX(100%);
  transition: transform .32s cubic-bezier(0.5,0,.2,1);
  box-shadow: -4px 0 32px 2px rgba(28,30,33,0.20);
  visibility: hidden;
  pointer-events: none;
}
.mobile-menu.open {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
}
.mobile-menu-close {
  background: none;
  border: none;
  color: #fff;
  font-size: 2.1rem;
  align-self: flex-end;
  margin-bottom: 24px;
  padding: 7px 13px;
  cursor: pointer;
  border-radius: 6px;
  transition: background .2s;
}
.mobile-menu-close:focus, .mobile-menu-close:hover {
  background: #292b31;
  color: #EABB56;
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
}
.mobile-nav a {
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 1.27rem;
  color: #fff;
  text-decoration: none;
  padding: 10px 0;
  border-radius: 5px;
  letter-spacing: 0.005em;
  transition: background .19s, color .19s;
}
.mobile-nav a:hover, .mobile-nav a:focus {
  background: #B3C0CC;
  color: #1C1E21;
}

/* === BUTTONS === */
.button, button.button, input[type="submit"].button {
  font-family: 'Montserrat', Arial, sans-serif;
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: #1C1E21;
  background: #fff;
  border: 1.5px solid #1C1E21;
  border-radius: 8.5px;
  padding: 10px 26px;
  cursor: pointer;
  box-shadow: 0 2px 6px 0 rgba(28,30,33,0.03);
  transition: background .16s, color .16s, box-shadow .2s;
  text-decoration: none;
  line-height: 1.25;
  display: inline-block;
}
.button.primary, button.primary, input[type="submit"].primary {
  background: #1C1E21;
  color: #fff;
  border-color: #1C1E21;
}
.button.primary:hover, .button.primary:focus,
button.primary:hover, button.primary:focus {
  background: #EABB56;
  color: #1C1E21;
  border-color: #EABB56;
}
.button:hover, .button:focus,
input[type="submit"].button:hover, input[type="submit"].button:focus {
  box-shadow: 0 6px 16px 0 rgba(28,30,33,0.09);
  background: #F7F9FA;
  color: #1C1E21;
  outline: none;
}
.button:active {
  background: #ECECEC;
}

/* Social Links */
.social-links {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 14px;
}
.social-links img {
  width: 22px;
  height: 22px;
  opacity: 0.8;
  transition: opacity 0.2s;
}
.social-links img:hover,
.social-links img:focus {
  opacity: 1;
}

/* === FOOTER === */
footer {
  background: #fff;
  border-top: 1px solid #F0F2F4;
  padding: 36px 0 20px 0;
}
footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
  justify-content: space-between;
  align-items: flex-start;
}
footer nav {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 10px 0;
}
footer nav a {
  color: #1C1E21;
  font-size: 1rem;
  text-decoration: none;
  transition: color .16s;
}
footer nav a:hover, footer nav a:focus {
  color: #EABB56;
}
footer .address {
  font-size: 0.98rem;
  color: #6B6E71;
  margin-bottom: 8px;
  line-height: 1.6;
}

/* === COOKIE CONSENT BANNER === */
#cookie-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: #1C1E21;
  color: #fff;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
  padding: 26px 22px;
  z-index: 9000;
  box-shadow: 0 -3px 20px 0 #1C1E2136;
  font-size: 1rem;
  max-width: 100vw;
  min-height: 0;
  transition: transform .35s cubic-bezier(.4,0,.2,1), opacity .25s;
}
#cookie-banner.hide {
  transform: translateY(120%);
  opacity: 0;
  pointer-events: none;
}
#cookie-banner .cookie-text {
  flex: 1 1 auto;
  color: #fff;
  margin-right: 28px;
}
#cookie-banner .cookie-actions {
  display: flex;
  gap: 15px;
}
#cookie-banner button,
#cookie-banner .button {
  font-size: 1rem;
  border-radius: 7px;
  border: none;
  padding: 8px 22px;
  cursor: pointer;
  transition: background .2s, color .16s;
  background: #B3C0CC;
  color: #1C1E21;
  font-family: 'Montserrat', Arial, sans-serif;
  font-weight: 600;
}
#cookie-banner button.primary {
  background: #EABB56;
  color: #1C1E21;
}
#cookie-banner button:hover,
#cookie-banner .button:hover {
  background: #F0F2F4;
  color: #1C1E21;
}

/* COOKIE PREFERENCES MODAL */
#cookie-modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(28,30,33,0.76);
  z-index: 9900;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
}
#cookie-modal.open {
  opacity: 1;
  pointer-events: auto;
}
.cookie-modal-content {
  background: #fff;
  color: #1C1E21;
  border-radius: 18px;
  max-width: 430px;
  box-shadow: 0 8px 46px 0 #1C1E2126;
  padding: 40px 30px 26px 30px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.cookie-modal-content h3 {
  color: #1C1E21;
  font-size: 1.17rem;
  margin-bottom: 8px;
}
.cookie-modal-categories {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 8px;
}
.cookie-modal-category {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 1rem;
}
.cookie-essential {
  font-weight: 600;
  color: #8F9297;
}
.cookie-modal-content label {
  cursor: pointer;
  font-size: 1rem;
  color: #1C1E21;
}
.cookie-modal-content input[type="checkbox"] {
  accent-color: #B3C0CC;
  width: 19px;
  height: 19px;
}
.cookie-modal-close {
  position: absolute;
  top: 16px; right: 20px;
  background: none;
  border: none;
  font-size: 1.7rem;
  color: #1C1E21;
  cursor: pointer;
  transition: color .16s;
  z-index: 1;
}
.cookie-modal-close:hover, .cookie-modal-close:focus {
  color: #EABB56;
}
.cookie-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 16px;
  margin-top: 18px;
}
.cookie-modal-actions button {
  font-size: 1rem;
  border-radius: 7px;
  border: none;
  padding: 8px 22px;
  font-family: 'Montserrat', Arial, sans-serif;
  background: #B3C0CC;
  color: #1C1E21;
  font-weight: 600;
  transition: background .2s, color .16s;
}
.cookie-modal-actions button.primary {
  background: #EABB56;
  color: #1C1E21;
}
.cookie-modal-actions button:hover {
  background: #F0F2F4;
  color: #1C1E21;
}

/* === CONTENT SPECIFIC: HOME, USP, PROJECT, BLOG === */
.ul {
  list-style: disc;
}
li strong {
  color: #1C1E21;
}

/* === UTILITY CLASSES / PATTERNS === */
/* Prevent overlap by ensuring enough spacing between all cards & sections */
.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;
}

/* === MEDIA QUERIES: RESPONSIVE DESIGN === */
@media (max-width: 1100px) {
  .container {
    max-width: 970px;
    padding-left: 12px;
    padding-right: 12px;
  }
}
@media (max-width: 900px) {
  .container {
    max-width: 760px;
  }
  header .container, footer .container {
    gap: 18px;
    flex-wrap: wrap;
    flex-direction: column;
    align-items: flex-start;
  }
}
@media (max-width: 768px) {
  /* Stack nav to top on mobile, hide desktop nav */
  header .container {
    flex-direction: row;
    align-items: center;
  }
  header nav {
    display: none !important;
  }
  .mobile-menu-toggle {
    display: inline-block;
  }
  .button.primary {
    display: none;
  }
  .container {
    max-width: 96vw;
    padding-left: 8px;
    padding-right: 8px;
  }
  section {
    padding: 28px 8px;
  }
  .section {
    padding: 28px 8px;
    margin-bottom: 40px;
  }
  .card-container, .content-grid, .blog-article-teasers {
    flex-direction: column;
    gap: 20px;
  }
  .card, .testimonial-card, .cta-banner, .address-block {
    padding: 18px 12px;
    border-radius: 12px;
    max-width: 100%;
  }
  .cta-banner {
    align-items: stretch;
    gap: 14px;
  }
  .blog-article-teasers article {
    padding: 13px 8px 16px 8px;
  }
  .content-wrapper {
    gap: 18px;
  }
  .category-tags {
    gap: 10px;
    margin-top: 10px;
  }
  .address-block, .address {
    padding: 12px 7px;
  }
  .text-image-section {
    flex-direction: column;
    gap: 18px;
    align-items: flex-start;
  }
  footer .container {
    flex-direction: column;
    gap: 24px;
    align-items: flex-start;
    padding-left: 8px;
    padding-right: 8px;
  }
}
@media (max-width: 520px) {
  h1 {
    font-size: 1.25rem;
  }
  h2 {
    font-size: 1.07rem;
  }
  .cookie-modal-content {
    padding: 24px 8px 18px 8px;
    max-width: 96vw;
  }
  #cookie-banner {
    flex-direction: column;
    gap: 14px;
    padding: 14px 6px 17px 6px;
    font-size: 0.99rem;
  }
  #cookie-banner .cookie-text {
    margin-right: 0;
  }
}

/* === ANIMATIONS / MICRO-INTERACTIONS === */
.button, .button.primary, #cookie-banner button, .cookie-modal-actions button {
  transition: background .18s, color .16s, box-shadow .2s, border-color .2s;
}
.card, .blog-article-teasers article, .testimonial-card, .cta-banner {
  transition: box-shadow .18s;
}
.card:hover, .blog-article-teasers article:hover, .testimonial-card:hover {
  box-shadow: 0 8px 32px 0 rgba(28,30,33,0.12);
  z-index: 2;
}

/* === HIDE ELEMENTS BY UTILITY === */
.hidden {
  display: none !important;
}
.visually-hidden {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
  white-space: nowrap;
}