* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Poppins', sans-serif;
  background-color: #121212;
  color: #e0e0e0;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
}


.nav {
  background-color: #1b1b1b;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.7);
  position: sticky;
  top: 0;
  z-index: 1000;
}


.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}


.nav-logo img {
  height: 80px;
  width: auto;
  object-fit: contain;
}


.nav-toggle {
  font-size: 30px;
  background: none;
  border: none;
  color: #ccc;
  cursor: pointer;
  display: none; 
}


.nav-links {
  list-style: none;
  display: flex;
  gap: 30px;
  margin: 0;
  padding: 0;
}

.nav-links li a {
  color: #ccc;
  text-decoration: none;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 18px;
  padding: 6px 12px;
  border-radius: 6px;
  transition: 0.3s ease;
}

.nav-links li a:hover {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.1);
}


@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #1b1b1b;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .nav-links.open {
    max-height: 300px;
    padding: 20px 0;
  }
}



.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 70px 24px 40px;
}


.hero {
  position: relative;
  height: 90vh;
  background: url('images/47.jpg') center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: #f5f5f5;
  font-family: 'Poppins', sans-serif;
  user-select: none;
}

.overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(15, 15, 15, 0.8);
  z-index: 1;
  backdrop-filter: brightness(0.7);
}

.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 24px;
  animation: fadeInUp 1.5s ease-out;
}

.hero-heading .label {
  display: inline-block;
  font-size: 1rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #999;
  margin-bottom: 12px;
  opacity: 0.85;
  font-weight: 600;
  user-select: none;
}

.hero-heading h1 {
  font-size: 3.8rem;
  font-weight: 700;
  letter-spacing: 10px;
  text-transform: uppercase;
  color: transparent;
  background: linear-gradient(
    90deg,
    #e0e0e0,
    #f5f5f5,
    #c0c0c0
  );
  background-size: 100%;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0 auto 30px;
  user-select: none;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}


.hero-heading .line {
  width: 90px;
  height: 2.5px;
  background: #999;
  margin: 0 auto 30px;
  opacity: 0.5;
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(153, 153, 153, 0.4);
}

.hero-heading p {
  font-size: 1.4rem;
  line-height: 1.7;
  color: #ddd;
  margin-bottom: 50px;
  max-width: 680px;
  user-select: text;
}

.hero .btn {
  padding: 16px 44px;
  border: 2px solid #ffffff;
  background: transparent;
  border-radius: 50px;
  color: white;
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  transition: 
    background-color 0.35s ease, 
    color 0.35s ease, 
    box-shadow 0.35s ease, 
    transform 0.25s ease;
  text-decoration: none;
  user-select: none;
  display: inline-block;
  animation: glow 3s ease-in-out infinite;
}

.hero .btn:hover,
.hero .btn:focus-visible {
  background: #ffffff;
  color: #121212;
  box-shadow: 0 0 28px rgba(255, 255, 255, 0.5);
  transform: translateY(-3px) scale(1.05);
  outline: none;
}


@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes stripes {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 100% 50%;
  }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 10px rgba(255,255,255,0.25); }
  50% { box-shadow: 0 0 25px rgba(255,255,255,0.55); }
}


@media (max-width: 768px) {
  .hero-heading h1 {
    font-size: 2.8rem;
    letter-spacing: 6px;
  }
  .hero-heading p {
    font-size: 1.1rem;
  }
  .hero .btn {
    padding: 14px 32px;
    font-size: 1rem;
  }
}


.o-nas {
  padding: 60px 20px 80px;
  background: #121212; 
  color: #ddd;
  font-family: 'Poppins', sans-serif;
}

.o-nas h2 {
  font-size: 2.8rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: 30px;
  letter-spacing: 0.05em;
  user-select: none;
}

.o-nas p {
  font-size: 1.25rem;
  max-width: 850px;
  margin: 0 auto 50px auto;
  line-height: 1.7;
  text-align: center;
  color: #aaa;
  user-select: text;
  padding: 0 15px;
}


.o-nas-bloky {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  max-width: 900px;
  margin: 0 auto;
}

.o-nas-blok {
  background: #1e1e1e;
  border-radius: 12px;
  padding: 25px 30px;
  flex: 1 1 250px;
  max-width: 280px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.6);
  text-align: center;
  transition: background-color 0.3s ease;
  cursor: default;
}

.o-nas-blok:hover {
  background-color: #2a2a2a;
}

.o-nas-blok svg {
  width: 50px;
  height: 50px;
  stroke: #61dafb;  
  margin-bottom: 15px;
}

.o-nas-blok h3 {
  font-size: 1.4rem;
  margin-bottom: 12px;
  font-weight: 600;
  color: #ddd;
}

.o-nas-blok p {
  font-size: 1rem;
  line-height: 1.5;
  color: #bbb;
  margin: 0;
}


@media (max-width: 768px) {
  .o-nas-bloky {
    gap: 25px;
  }
  .o-nas-blok {
    max-width: 100%;
  }
}



.sluzby-grid {
  display: flex;
  justify-content: center;
  gap: 42px;
  flex-wrap: wrap;
  padding: 10px 0 50px;
}

.sluzba {
  cursor: pointer;
  padding: 28px 24px;
  border-radius: 16px;
  background: linear-gradient(145deg, #1d1d1d, #151515);
  color: #e0e6f0;
  text-align: center;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
  border: 1px solid #2a2a2a;
  width: 280px;
  transition: 
    background 0.35s ease, 
    box-shadow 0.35s ease, 
    transform 0.35s ease,
    border-color 0.35s ease;
  user-select: none;
  will-change: transform, box-shadow;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sluzba:hover {
  background: linear-gradient(145deg, #2a3946, #222e3b);
  box-shadow: 0 10px 30px rgba(86, 106, 134, 0.7);
  transform: translateY(-7px);
  border-color: #4a5e7e;
}

.sluzba-ikona .icon {
  width: 56px;
  height: 56px;
  stroke: #78909c;
  stroke-width: 1.7;
  margin-bottom: 18px;
  transition: stroke 0.3s ease;
}

.sluzba:hover .icon {
  stroke: #a9b9d7;
}

.sluzba h3 {
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  font-size: 1.4rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  margin-bottom: 4px;
}


.sluzba-detail {
  width: 100%;
  padding: 20px 15px 10px;
  background: #121212;
  border-radius: 0 0 16px 16px;
  color: #c0c5d0;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.5s ease, opacity 0.4s ease;
  font-size: 0.95rem;
  text-align: left;
  margin-top: 12px;
  user-select: text;
}

.sluzba-detail.open {
  opacity: 1;
  max-height: 800px; 
}

.sluzba-detail ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sluzba-detail li {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 1.05rem;
  color: #d0d5e0;
  user-select: text;
}

.sluzba-detail li img {
  width: 68px;
  height: 68px;
  object-fit: cover;
  border-radius: 14px;
  margin-right: 20px;
  box-shadow: 0 3px 14px rgba(0, 0, 0, 0.5);
  transition: transform 0.3s ease;
  user-select: none;
}

.sluzba-detail li:hover img {
  transform: scale(1.1);
  filter: brightness(1.15);
}

.sluzba.active {
  background: linear-gradient(145deg, #32435a, #24304a);
  box-shadow: 0 10px 30px rgba(86, 106, 134, 0.9);
  transform: translateY(-7px);
  border-color: #6b7f9e;
}

.sluzba.active .icon {
  stroke: #c0d3e0;
}


@media (max-width: 768px) {
  .sluzby-grid {
    flex-direction: column;
    align-items: center;
    padding: 10px 0 40px;
  }
  .sluzba {
    width: 90%;
    max-width: 360px;
  }
  .sluzba-detail ul {
    flex-direction: column;
  }
  .sluzba-detail li {
    flex-direction: row;
    align-items: flex-start;
  }
  .sluzba-detail li img {
    width: 60px;
    height: 60px;
    margin-right: 16px;
  }
}


.kontakt h2 {
  font-size: 2.8rem;
  color: #ddd;
  margin-bottom: 24px;
  text-align: center;
  font-weight: 600;
  user-select: none;
}

.kontakt-info {
  display: flex;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.kontakt-blok {
  width: 280px;
  background: #1e1e1e;
  border-radius: 12px;
  padding: 20px 25px;
  box-shadow: 0 0 12px rgba(85, 119, 204, 0.3);
  color: #ddd;
  user-select: text;
  text-align: left;
  transition: box-shadow 0.3s ease;
  overflow-wrap: break-word;
  word-break: break-word;
}

.kontakt-blok:hover {
  box-shadow: 0 0 20px #597bc7;
}

.kontakt-blok h3 {
  margin-bottom: 12px;
  font-size: 1.4rem;
  font-weight: 600;
  color: #a7c7e7;
}

.kontakt-blok p {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 1.1rem;
  line-height: 1.5;
  color: #ccc;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.kontakt-blok .ikonka svg {
  stroke: #a7c7e7;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.kontakt-blok p strong {
  color: #a7c7e7;
  user-select: none;
  flex-shrink: 0;
  white-space: nowrap;
}

.kontakt-blok p a {
  color: #ccc;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.3s ease;
}

.kontakt-blok p a:hover,
.kontakt-blok p a:focus {
  color: #7f9cda;
  outline: none;
}

.kontakt-popis {
  max-width: 550px;
  margin: 0 auto 20px auto;
  color: #bbb;
  font-size: 1.2rem;
  text-align: center;
  font-style: italic;
  user-select: none;
}

form {
  margin-top: 36px;
  display: grid;
  gap: 22px;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

form input,
form textarea {
  padding: 14px 16px;
  border: none;
  border-radius: 10px;
  background: #1c1c1c;
  color: #ddd;
  font-size: 1rem;
  font-family: 'Poppins', sans-serif;
  box-shadow: inset 0 0 7px rgba(255, 255, 255, 0.1);
  transition: box-shadow 0.3s ease;
  resize: vertical;
}

form input:focus,
form textarea:focus {
  outline: none;
  box-shadow: 0 0 12px #5577cc;
  background: #242424;
  color: #eee;
}

form button {
  background: #334a7f;
  border: none;
  padding: 14px 0;
  color: #fff;
  font-weight: 600;
  font-size: 1.1rem;
  border-radius: 10px;
  cursor: pointer;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  user-select: none;
}

form button:hover,
form button:focus-visible {
  background: #4568b1;
  box-shadow: 0 0 20px #597bc7;
  outline: none;
}

@media (max-width: 768px) {
  .kontakt-info {
    flex-direction: column;
    gap: 30px;
  }

  .kontakt-blok {
    width: 100%;
    max-width: 100%;
    text-align: center;
  }

  .kontakt-blok p {
    justify-content: center;
  }
}


footer {
  padding: 20px 24px;
  background: #101010;
  text-align: center;
  color: #777;
  font-size: 0.85rem;
  user-select: none;
  position: relative;
}

footer .container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
}


footer .logo {
  margin-bottom: 12px;
  max-width: 120px;
  filter: brightness(0.8);
  transition: filter 0.3s ease;
}

footer .logo:hover {
  filter: brightness(1);
}

footer strong {
  color: #bbb;
  font-weight: 600;
}


.footer-instagram {
  display: inline-block;
  transition: transform 0.3s ease, stroke 0.3s ease;
}

.footer-instagram:hover svg {
  stroke: #e0ebff;
  transform: scale(1.1);
}


footer .vtz-link {
  color: #bbb;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.3s ease;
}

footer .vtz-link:hover,
footer .vtz-link:focus {
  color: #e0ebff;
  text-decoration: underline;
}


a {
  cursor: pointer;
  text-decoration: none;
}

a:focus-visible {
  outline: 2px solid #5577cc;
  outline-offset: 2px;
}


.dodavatele {
  padding: 60px 15px;
  background-color: #121212;
  color: #ddd;
  text-align: center;
  user-select: none;
}

.dodavatele h2 {
  font-size: 2.8rem;
  margin-bottom: 20px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.dodavatele p {
  font-size: 1.3rem;
  max-width: 700px;
  margin: 0 auto 40px;
  color: #aaa;
  user-select: text;
}

.dodavatele-grid {
  display: flex;
  gap: 40px;
  justify-content: center;
  flex-wrap: wrap;
}

.dodavatel {
  background: #1e1e1e;
  border-radius: 12px;
  padding: 25px;
  max-width: 320px;
  box-shadow: 0 0 10px rgba(255 255 255 / 0.05);
  transition: transform 0.3s ease;
}

.dodavatel:hover {
  transform: translateY(-8px);
}

.dodavatel img {
  max-width: 160px;
  margin-bottom: 20px;
  filter: brightness(0.9);
  user-select: none;
}

.dodavatel h3 {
  font-size: 1.6rem;
  margin-bottom: 12px;
  font-weight: 700;
}

.dodavatel p {
  font-size: 1rem;
  color: #bbb;
  line-height: 1.5;
  user-select: text;
}

.dodavatele .icon {
  margin-bottom: 20px;
  stroke: #ddd;
  transition: stroke 0.3s ease;
}

.dodavatel:hover .icon {
  stroke: #a7c7e7; 
}


@media (max-width: 768px) {
  .dodavatele-grid {
    flex-direction: column;
    gap: 30px;
  }
}


.galerie-sekce {
  padding: 60px 24px;
  background: #121212;
  text-align: center;
}

.galerie-sekce h2 {
  font-size: 2.6rem;
  color: #ddd;
  margin-bottom: 40px;
  font-weight: 600;
  user-select: none;
}

.galerie-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}


.galerie-grid a img {
  width: 100%;
  aspect-ratio: 4 / 3;
  height: auto;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 0 12px rgba(85, 119, 204, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: block;
}


.galerie-grid a:hover img {
  transform: scale(1.03);
  box-shadow: 0 0 20px #597bc7;
}


.galerie-grid a.hidden {
  display: none;
}


.galerie-grid a.show {
  display: block;
}


#lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.9);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  flex-direction: column;
}

#lightbox-img {
  max-width: 90%;
  max-height: 80%;
  border-radius: 12px;
  box-shadow: 0 0 24px rgba(0, 0, 0, 0.6);
  transition: transform 0.3s ease;
}

#lightbox-overlay.show {
  display: flex;
  animation: fadeIn 0.3s ease;
}

#lightbox-prev, #lightbox-next, #lightbox-close {
  position: absolute;
  color: #fff;
  font-size: 48px;
  cursor: pointer;
  user-select: none;
  z-index: 10000;
  padding: 16px;
  transition: color 0.2s ease;
}

#lightbox-prev:hover, #lightbox-next:hover, #lightbox-close:hover {
  color: #ccc;
}

#lightbox-prev {
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
}

#lightbox-next {
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
}

#lightbox-close {
  top: 20px;
  right: 30px;
  font-size: 40px;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}



#loader {
  position: fixed;
  z-index: 99999;
  background: #121212;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;   
  align-items: center;
  justify-content: center;
  animation: fadeOut 0.5s ease-out forwards;
  animation-delay: 1.5s;
  color: #ddd;
  font-size: 1.3rem;
  font-weight: 500;
  user-select: none;
}

#loader img {
  width: 80px;
  height: 80px;
  animation: spin 2.5s linear infinite; 
  opacity: 0.9;
  margin-bottom: 16px;
}

#loader-text {
 
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes fadeOut {
  to {
    opacity: 0;
    visibility: hidden;
  }
}
.hidden {
  display: none;
}

.btn {
  margin-top: 20px;
  padding: 10px 28px;
  font-size: 1.1rem;
  font-weight: 600;
  background-color: #597bc7;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.btn:hover {
  background-color: #485ea6;
}


#show-more-btn {
  background: linear-gradient(135deg, #597bc7 0%, #425fa3 100%);
  color: #fff;
  border: none;
  padding: 14px 40px;
  font-size: 1.15rem;
  font-weight: 700;
  border-radius: 40px;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(89, 123, 199, 0.35);
  display: inline-block;
  user-select: none;
  margin: 30px auto 0 auto;
  transition: box-shadow 0.3s ease, background 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  min-width: 160px;
  text-align: center;
}

#show-more-btn:hover {
  box-shadow: 0 12px 28px rgba(66, 95, 163, 0.6);
  background: linear-gradient(135deg, #425fa3 0%, #597bc7 100%);
}

#show-more-btn:active {
  box-shadow: 0 4px 10px rgba(52, 73, 127, 0.7);
  transform: translateY(2px);
}

#show-more-btn:focus {
  outline: none;
  box-shadow: 0 0 0 4px rgba(89, 123, 199, 0.7);
}