/* ============================================================
   BuildExpert – Global Styles
   Colors: #efad4c (yellow), #1a1a1a (black), #ffffff (white)
   ============================================================ */

:root {
  --yellow: #efad4c;
  --yellow-dark: #d99a35;
  --black: #1a1a1a;
  --white: #ffffff;
  --gray-light: #f5f5f5;
  --gray: #888888;
  --transition: 0.3s ease;
}

/* ---- Reset & Base ----------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: 'Montserrat', sans-serif;
  color: var(--black);
  background: var(--white);
  overflow-x: hidden;
  width: 100%;
}

img { max-width: 100%; height: auto; display: block; }

a { text-decoration: none; color: inherit; }

ul { list-style: none; }

/* ---- Typography ------------------------------------------- */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; }

h1 { font-size: clamp(2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); }
h4 { font-size: 1.1rem; }

p { line-height: 1.8; color: #444; }

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title h2 { margin-bottom: 0.75rem; }

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--yellow);
  margin: 0.8rem auto 0;
  border-radius: 2px;
}

.section-title p {
  max-width: 600px;
  margin: 1rem auto 0;
  font-size: 1.05rem;
}

/* ---- Buttons ---------------------------------------------- */
.btn-yellow {
  display: inline-block;
  background: var(--yellow);
  color: var(--black);
  padding: 0.75rem 2rem;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  border: 2px solid var(--yellow);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  text-transform: uppercase;
}

.btn-yellow:hover {
  background: var(--yellow-dark);
  border-color: var(--yellow-dark);
  color: var(--white);
}

.btn-outline {
  display: inline-block;
  background: transparent;
  color: var(--white);
  padding: 0.75rem 2rem;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  border: 2px solid var(--white);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  text-transform: uppercase;
}

.btn-outline:hover {
  background: var(--white);
  color: var(--black);
}

.btn-outline-dark {
  display: inline-block;
  background: transparent;
  color: var(--black);
  padding: 0.75rem 2rem;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  border: 2px solid var(--black);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  text-transform: uppercase;
}

.btn-outline-dark:hover {
  background: var(--black);
  color: var(--white);
}

/* ---- Navbar ----------------------------------------------- */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
  padding: 1.4rem 0;
}

#navbar.scrolled {
  background: var(--black);
  box-shadow: 0 2px 20px rgba(0,0,0,0.4);
  padding: 0.8rem 0;
}

#navbar.transparent { background: transparent; }

#navbar.menu-open {
  background: var(--black) !important;
  box-shadow: 0 2px 20px rgba(0,0,0,0.4);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo img { height: 44px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav-links a {
  color: var(--white);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
  transition: color var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--yellow);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active { color: var(--yellow); }

.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

/* hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
.nav-mobile {
  display: flex;
  flex-direction: column;
  background: var(--black);
  padding: 0 2rem;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.38s ease, opacity 0.28s ease, padding 0.38s ease;
}

.nav-mobile.open {
  max-height: 500px;
  opacity: 1;
  padding: 0.5rem 2rem 1.5rem;
}

.nav-mobile a {
  color: var(--white);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.7rem 0;
  border-bottom: 1px solid #333;
  transition: color var(--transition);
  transform: translateX(-12px);
  opacity: 0;
  transition: color var(--transition), transform 0.3s ease, opacity 0.3s ease;
}

.nav-mobile.open a {
  transform: translateX(0);
  opacity: 1;
}

.nav-mobile.open a:nth-child(1) { transition-delay: 0.08s; }
.nav-mobile.open a:nth-child(2) { transition-delay: 0.14s; }
.nav-mobile.open a:nth-child(3) { transition-delay: 0.20s; }
.nav-mobile.open a:nth-child(4) { transition-delay: 0.26s; }

.nav-mobile a:hover,
.nav-mobile a.active { color: var(--yellow); }

/* ---- Hero Slider ------------------------------------------ */
#hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
  background-size: cover;
  background-position: center;
}

.hero-slide.active { opacity: 1; }

.hero-slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.3) 60%, rgba(0,0,0,0.6) 100%);
}

.hero-content {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  color: var(--white);
  padding: 2rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease 0.3s, transform 0.8s ease 0.3s;
}

.hero-slide.active .hero-content {
  opacity: 1;
  transform: translateY(0);
}

.hero-badge {
  display: inline-block;
  background: var(--yellow);
  color: var(--black);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.35rem 1rem;
  margin-bottom: 1.2rem;
}

.hero-content h1 { text-shadow: 0 2px 10px rgba(0,0,0,0.5); margin-bottom: 1rem; }
.hero-content p { font-size: 1.15rem; max-width: 580px; margin-bottom: 2rem; text-shadow: 0 1px 6px rgba(0,0,0,0.5); color:white; }

.hero-dots {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.6rem;
  z-index: 5;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  border: none;
}

.hero-dot.active {
  background: var(--yellow);
  transform: scale(1.3);
}

.hero-arrows {
  position: absolute;
  bottom: 50%;
  transform: translateY(50%);
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 0 1.5rem;
  z-index: 5;
  pointer-events: none;
}

/* Stats grid – 4 columns, collapses on mobile */
.stats-grid {
  grid-template-columns: repeat(4, 1fr) !important;
}

.hero-arrow {
  pointer-events: all;
  background: rgba(0,0,0,0.35);
  border: 2px solid rgba(255,255,255,0.4);
  color: var(--white);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  transition: background var(--transition), border-color var(--transition);
}

.hero-arrow:hover {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--black);
}

/* ---- Scroll-down indicator -------------------------------- */
.scroll-down {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--white);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  z-index: 5;
  opacity: 0.8;
}

.scroll-down .arrow-anim {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--white);
  border-bottom: 2px solid var(--white);
  transform: rotate(45deg);
  animation: arrowBounce 1.4s infinite;
}

@keyframes arrowBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(6px); }
}

/* ---- Sections --------------------------------------------- */
section { padding: 5rem 0; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---- Feature boxes ---------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-box {
  border: 1px solid #e0e0e0;
  padding: 2.5rem 2rem;
  text-align: center;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

.feature-box:hover {
  box-shadow: 0 8px 32px rgba(239,173,76,0.18);
  border-color: var(--yellow);
  transform: translateY(-4px);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--yellow);
}

.feature-box h3 { margin-bottom: 0.8rem; font-size: 1rem; letter-spacing: 0.06em; text-transform: uppercase; }

/* ---- Who we are ------------------------------------------- */
#about { background: var(--white); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-img {
  position: relative;
  overflow: hidden;
}

.about-img img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.about-img:hover img { transform: scale(1.04); }

.about-img::before {
  content: '';
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 60%;
  height: 60%;
  border: 5px solid var(--yellow);
  z-index: -1;
}

.about-text .label {
  display: inline-block;
  background: var(--yellow);
  color: var(--black);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.3rem 0.9rem;
  margin-bottom: 1rem;
}

.about-text h2 { margin-bottom: 1.5rem; }
.about-text p { margin-bottom: 1.2rem; }
.about-text .btn-yellow { margin-top: 0.5rem; }

/* stats */
.stat-row {
  display: flex;
  gap: 2.5rem;
  margin: 2rem 0;
}

.stat-item { text-align: center; }

.stat-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--yellow);
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.3rem;
}

/* ---- What we do teaser ------------------------------------ */
#services-teaser {
  background: var(--gray-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  background: var(--white);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}

.service-card-img {
  height: 220px;
  overflow: hidden;
}

.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.service-card:hover .service-card-img img { transform: scale(1.08); }

.service-card-body {
  padding: 1.8rem;
}

.service-card-body .icon {
  font-size: 2rem;
  color: var(--yellow);
  margin-bottom: 0.8rem;
}

.service-card-body h3 { margin-bottom: 0.7rem; }

.service-card-body a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--yellow);
  font-weight: 700;
  font-size: 0.9rem;
  margin-top: 1rem;
  transition: gap var(--transition);
}

.service-card-body a:hover { gap: 0.8rem; }

/* ---- CTA Banner ------------------------------------------- */
#cta-banner {
  background: var(--black);
  padding: 4rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

#cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?w=1400&auto=format&fit=crop') center/cover no-repeat;
  opacity: 0.2;
}

#cta-banner .container { position: relative; }
#cta-banner h2 { color: var(--white); margin-bottom: 1rem; }
#cta-banner p { color: rgba(255,255,255,0.75); max-width: 580px; margin: 0 auto 2rem; }

/* ---- Partners Carousel ------------------------------------ */
#partners { background: var(--yellow); padding: 3.5rem 0; }

#partners .section-title h2 { color: var(--black); }
#partners .section-title::after { background: var(--black); }

.partners-track-wrapper {
  overflow: hidden;
  position: relative;
}

.partners-track-wrapper::before,
.partners-track-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 80px;
  z-index: 2;
}

.partners-track-wrapper::before { left: 0; background: linear-gradient(to right, var(--yellow), transparent); }
.partners-track-wrapper::after { right: 0; background: linear-gradient(to left, var(--yellow), transparent); }

.partners-track {
  display: flex;
  gap: 3rem;
  align-items: center;
  animation: scroll-partners 22s linear infinite;
  width: max-content;
}

.partners-track:hover { animation-play-state: paused; }

@keyframes scroll-partners {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.partner-logo {
  background: var(--white);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 70px;
  min-width: 160px;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: var(--black);
  flex-shrink: 0;
  opacity: 0.85;
  transition: opacity var(--transition), transform var(--transition);
}

.partner-logo:hover { opacity: 1; transform: scale(1.04); }

/* ---- Video/Realizations CTA ------------------------------- */
#video-cta {
  position: relative;
  padding: 7rem 0;
  text-align: center;
  background: url('https://images.unsplash.com/photo-1486325212027-8081e485255e?w=1400&auto=format&fit=crop') center/cover fixed no-repeat;
  color: var(--white);
}

#video-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
}

#video-cta .container { position: relative; }
#video-cta h2 { color: var(--white); margin-bottom: 1rem; letter-spacing: 0.06em; }

.play-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border: 3px solid var(--white);
  border-radius: 50%;
  font-size: 1.8rem;
  color: var(--white);
  margin: 1.5rem auto;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.play-btn:hover {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--black);
}

/* ---- Footer ----------------------------------------------- */
footer {
  background: var(--black);
  color: var(--white);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1.5fr;
  gap: 3rem;
  padding: 4rem 0;
  border-bottom: 1px solid #333;
}

.footer-brand img { height: 42px; margin-bottom: 1.2rem; }

.footer-brand p {
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.social-links { display: flex; gap: 0.8rem; }

.social-link {
  width: 38px;
  height: 38px;
  border: 1px solid #444;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.social-link:hover {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--black);
}

.footer-links h4 {
  color: var(--yellow);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.footer-links ul li { margin-bottom: 0.7rem; }

.footer-links ul li a {
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
  transition: color var(--transition), padding-left var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.footer-links ul li a::before {
  content: '›';
  color: var(--yellow);
}

.footer-links ul li a:hover {
  color: var(--white);
  padding-left: 4px;
}

.footer-contact h4 {
  color: var(--yellow);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.contact-item {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  margin-bottom: 1rem;
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
}

.contact-item i { color: var(--yellow); margin-top: 2px; flex-shrink: 0; }

/* ---- Contact Form ----------------------------------------- */
#contact { background: #111; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h2 { color: var(--white); margin-bottom: 1.5rem; }
.contact-info p { color: rgba(255,255,255,0.65); margin-bottom: 2rem; }

.contact-form-inner {
  background: #1e1e1e;
  padding: 2.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group { margin-bottom: 1.2rem; }

.form-group label {
  display: block;
  color: rgba(255,255,255,0.8);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  letter-spacing: 0.04em;
}

.form-group label span { color: var(--yellow); }

.form-control {
  width: 100%;
  background: #2a2a2a;
  border: 1px solid #3a3a3a;
  color: var(--white);
  padding: 0.85rem 1rem;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition);
  outline: none;
}

.form-control:focus { border-color: var(--yellow); }
.form-control::placeholder { color: #666; }

textarea.form-control { resize: vertical; min-height: 120px; }

.form-success {
  display: none;
  background: rgba(239,173,76,0.15);
  border: 1px solid var(--yellow);
  padding: 1rem;
  color: var(--white);
  margin-top: 1rem;
  text-align: center;
}

/* ---- Footer bottom ---------------------------------------- */
.footer-bottom {
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(255,255,255,0.4);
  font-size: 0.83rem;
}

/* ============================================================
   INNER PAGES
   ============================================================ */

/* ---- Page Hero -------------------------------------------- */
.page-hero {
  height: 380px;
  position: relative;
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: center;
  padding-bottom: 3rem;
  margin-top: 0;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.7) 100%);
}

.page-hero-content {
  position: relative;
  color: var(--white);
}

.page-hero-content .breadcrumb {
  display: flex;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 0.8rem;
}

.page-hero-content .breadcrumb a { color: var(--yellow); }
.page-hero-content .breadcrumb span { color: rgba(255,255,255,0.4); }

.page-hero-content h1 { text-shadow: 0 2px 8px rgba(0,0,0,0.5); }

/* ---- Services page ---------------------------------------- */
.service-section {
  padding: 5rem 0;
}

.service-section:nth-child(even) { background: var(--gray-light); }

.service-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.service-section:nth-child(even) .service-inner { direction: rtl; }
.service-section:nth-child(even) .service-inner > * { direction: ltr; }

.service-img {
  position: relative;
  overflow: hidden;
  height: 420px;
}

.service-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.service-img:hover img { transform: scale(1.04); }

.service-num {
  position: absolute;
  bottom: -20px;
  right: -20px;
  font-size: 8rem;
  font-weight: 900;
  color: rgba(239,173,76,0.15);
  line-height: 1;
  pointer-events: none;
}

.service-body .label {
  display: inline-block;
  background: var(--yellow);
  color: var(--black);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.3rem 0.9rem;
  margin-bottom: 1rem;
}

.service-body h2 { margin-bottom: 1.2rem; }
.service-body p { margin-bottom: 1rem; }

.service-list { margin: 1.2rem 0; }

.service-list li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid #eee;
  font-size: 0.95rem;
}

.service-list li i { color: var(--yellow); }

/* ---- Dotace highlight ------------------------------------- */
.dotace-highlight {
  background: var(--yellow);
  padding: 4rem 0;
  text-align: center;
}

.dotace-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.dotace-card {
  background: var(--white);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: transform var(--transition);
}

.dotace-card:hover { transform: translateY(-4px); }

.dotace-card i {
  font-size: 2.5rem;
  color: var(--yellow);
  margin-bottom: 1rem;
}

.dotace-card h4 { margin-bottom: 0.6rem; }
.dotace-card p { font-size: 0.88rem; }

/* ---- Gallery / Reference ---------------------------------- */
.gallery-filter {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  background: transparent;
  border: 2px solid #ddd;
  padding: 0.5rem 1.4rem;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--black);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover img { transform: scale(1.08); }

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(239,173,76,0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--black);
  opacity: 0;
  transition: opacity var(--transition);
  padding: 1.5rem;
  text-align: center;
}

.gallery-item:hover .gallery-overlay { opacity: 1; }

.gallery-overlay i { font-size: 2.5rem; margin-bottom: 0.6rem; }
.gallery-overlay h4 { font-size: 1rem; }
.gallery-overlay p { font-size: 0.85rem; margin-top: 0.3rem; }

/* Lightbox */
#lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.95);
  display: none;
  align-items: center;
  justify-content: center;
}

#lightbox.open { display: flex; }

.lightbox-inner {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox-inner img {
  max-width: 85vw;
  max-height: 85vh;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: var(--white);
  font-size: 2rem;
  cursor: pointer;
  transition: color var(--transition);
}

.lightbox-close:hover { color: var(--yellow); }

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: 2px solid rgba(255,255,255,0.4);
  color: var(--white);
  width: 50px;
  height: 50px;
  font-size: 1.3rem;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-nav:hover {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--black);
}

.lightbox-prev { left: -70px; }
.lightbox-next { right: -70px; }

.lightbox-caption {
  position: absolute;
  bottom: -45px;
  left: 0;
  right: 0;
  text-align: center;
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}

/* ---- Team / Contact page ---------------------------------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.team-grid--2col {
  grid-template-columns: repeat(2, 1fr);
  max-width: 800px;
  margin: 0 auto;
}

/* Icon-only team cards */
.team-icon-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.team-icon-card {
  border: 1px solid #e0e0e0;
  background: var(--white);
  padding: 2rem 1.5rem 1.8rem;
  text-align: left;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

.team-icon-card:hover {
  box-shadow: 0 6px 24px rgba(239,173,76,0.15);
  border-color: var(--yellow);
  transform: translateY(-3px);
}

.team-icon-wrap {
  font-size: 2.4rem;
  color: #999;
  margin-bottom: 1.2rem;
  transition: color var(--transition);
}

.team-icon-card:hover .team-icon-wrap { color: var(--yellow); }

.team-icon-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 0.3rem;
}

.team-icon-role {
  font-size: 0.83rem;
  color: #888;
}

.team-card {
  text-align: center;
  transition: transform var(--transition);
}

.team-card:hover { transform: translateY(-6px); }

.team-photo {
  position: relative;
  height: 300px;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.team-card:hover .team-photo img { transform: scale(1.05); }

.team-photo-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--yellow);
  padding: 0.8rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
  transform: translateY(100%);
  transition: transform var(--transition);
}

.team-card:hover .team-photo-overlay { transform: translateY(0); }

.team-photo-overlay a {
  color: var(--black);
  font-size: 1.1rem;
  transition: transform var(--transition);
}

.team-photo-overlay a:hover { transform: scale(1.2); }

.team-card h3 { margin-bottom: 0.3rem; }
.team-card .role {
  color: var(--yellow);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Contact page layout */
.contact-page-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}

.contact-card {
  background: var(--gray-light);
  padding: 2rem;
  margin-bottom: 1.5rem;
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
  transition: box-shadow var(--transition);
}

.contact-card:hover { box-shadow: 0 4px 20px rgba(239,173,76,0.2); }

.contact-card .icon-box {
  width: 50px;
  height: 50px;
  background: var(--yellow);
  color: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-card h4 { margin-bottom: 0.3rem; }
.contact-card p { font-size: 0.9rem; color: #555; }
.contact-card a { color: var(--black); transition: color var(--transition); }
.contact-card a:hover { color: var(--yellow); }

/* Map placeholder */
.map-wrapper {
  margin-top: 4rem;
  height: 380px;
  background: #ddd;
  overflow: hidden;
}

.map-wrapper iframe { width: 100%; height: 100%; border: 0; }

/* ---- Animations ------------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* stagger children */
.stagger > * { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.stagger.visible > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0s; }
.stagger.visible > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.1s; }
.stagger.visible > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.2s; }
.stagger.visible > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.3s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .features-grid,
  .services-grid { grid-template-columns: 1fr 1fr; }

  .about-grid,
  .service-inner,
  .contact-grid,
  .contact-page-grid { grid-template-columns: 1fr; gap: 2.5rem; }

  .about-img::before { display: none; }
  .service-section:nth-child(even) .service-inner { direction: ltr; }

  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-top .footer-brand { grid-column: span 2; }

  .team-grid { grid-template-columns: 1fr 1fr; }
  .team-icon-grid { grid-template-columns: 1fr 1fr; }

  .dotace-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  section { padding: 3.5rem 0; }

  .nav-links { display: none; }
  .nav-toggle { display: flex; }

  .features-grid,
  .services-grid,
  .gallery-grid { grid-template-columns: 1fr; }

  .gallery-grid { grid-template-columns: 1fr 1fr; }

  .form-row { grid-template-columns: 1fr; }

  .footer-top { grid-template-columns: 1fr; }
  .footer-top .footer-brand { grid-column: span 1; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }

  .hero-arrows {
    display: flex;
    padding: 0 0.5rem;
  }

  .hero-arrow {
    width: 38px;
    height: 38px;
    font-size: 0.95rem;
    background: rgba(0,0,0,0.5);
  }

  .about-img {
    overflow: hidden;
    max-width: 100%;
  }

  .about-img img {
    height: 260px;
    width: 100%;
    object-fit: cover;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1.5rem;
  }

  .team-grid { grid-template-columns: 1fr; }
  .team-grid--2col { grid-template-columns: 1fr; max-width: 100%; }
  .team-icon-grid { grid-template-columns: 1fr 1fr; }

  .page-hero { height: 280px; }

  .lightbox-prev { left: -15px; }
  .lightbox-next { right: -15px; }
}

@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .dotace-grid { grid-template-columns: 1fr; }
}