* { box-sizing: border-box; }
:root {
  --accent: #ffcc00;
  --blue: #0088cc;
  --light-blue: #d9f1ff;
  --dark-bg: rgba(0,0,0,0.5);
  --muted: #555;
  --max-width: 1200px;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #003554;
  background: var(--light-blue);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  animation: fadeIn 1s ease;
}

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

.page-header {
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

.topnav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 4%;
  background: rgba(0, 136, 204, 0.45);
  backdrop-filter: blur(6px);
  color: #fff;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 20;
  transition: background 0.3s ease;
}

.topnav:hover {
  background: rgba(0, 136, 204, 0.65);
}

.logo-box { display:flex; gap:12px; align-items:center; }
.logo { color: #fff; font-size:20px; margin:0; animation: slideUp 0.6s ease; }

@keyframes slideUp {
  from { transform: translateY(12px); opacity:0; }
  to { transform: translateY(0); opacity:1; }
}

.logo-img {
  width:44px; height:44px; object-fit:contain;
  animation: slideUp 0.8s ease;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 18px;
  align-items:center;
  margin:0;
  padding:0;
}

.nav-list a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  padding: 6px 8px;
  border-radius: 6px;
  transition: background .25s, transform .25s;
}

.nav-list a:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

.language-selector { position: relative; cursor: pointer; display:flex; align-items:center; }
.language-selector .main-flag {
  width: 36px;
  height: 22px;
  border-radius:4px;
  display:block;
  border: 2px solid var(--blue);
  transition: transform .25s;
}

.language-selector:hover .main-flag {
  transform: scale(1.05);
}

.language-dropdown {
  display: none;
  position: absolute;
  right: 0;
  top: 34px;
  background: #fff;
  border-radius: 8px;
  padding: 8px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.15);
  z-index: 20;
  animation: fadeIn 0.25s ease;
}

.language-dropdown.active { display:block; }

.language-dropdown img {
  width:32px;
  height:20px;
  margin:6px 0;
  cursor:pointer;
  border-radius:3px;
  border: 2px solid var(--blue);
  transition: transform .2s;
}

.language-dropdown img:hover {
  transform: scale(1.1);
}

.hero {
  height: 72vh;
  background-position: center;
  background-size: cover;
  display: flex;
  align-items: flex-end;
  padding: 40px 6%;
  position: relative;
  overflow: hidden;
  padding-top: 100px;
  animation: fadeIn 1.4s ease;
}

.hero::after {
  content:"";
  position:absolute; left:0; right:0; top:0; bottom:0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.25), rgba(0,0,0,0.55));
}

.hero-inner {
  position: relative;
  z-index: 2;
  color: #fff;
  max-width: 520px;
  animation: slideUp 1.1s ease;
}

.hero h2 { margin:0 0 12px 0; font-size:34px; }
.hero p { margin:0 0 18px 0; font-size:17px; color:#f3f3f3; }

.btn {
  display:inline-block;
  padding: 12px 20px;
  background: var(--accent);
  color: #000;
  border-radius:6px;
  text-decoration:none;
  font-weight:700;
  transition: transform .25s;
}

.btn:hover { transform: translateY(-3px) scale(1.03); }

.section { padding: 60px 6%; max-width: var(--max-width); margin: 0 auto; animation: fadeIn 0.8s ease; }
.section h2 { text-align:center; font-size:28px; margin-bottom:18px; color:#003554; }
.section p { text-align:center; max-width:900px; margin: 0 auto; color:#003554; line-height:1.5; }

.benefit-list { display:flex; gap:18px; justify-content:center; flex-wrap:wrap; margin-top:18px; }
.benefit {
  width: 260px;
  background:#e9f5ff;
  padding:18px;
  border-radius:10px;
  text-align:left;
  box-shadow: 0 6px 18px rgba(0,0,0,0.04);
  transition: transform .25s, box-shadow .25s;
}

.benefit:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 26px rgba(0,0,0,0.12);
}

.benefit h3 { margin:0 0 8px 0; font-size:18px; }
.benefit p { margin:0; color:var(--muted); }

.gallery-wrapper { position: relative; display:flex; align-items:center; justify-content:center; }
.gallery-container { display:flex; gap:16px; overflow:hidden; padding:12px 0; scroll-behavior: smooth; }

.gallery-item {
  width: 320px;
  height: 220px;
  border-radius:12px;
  overflow:hidden;
  flex:0 0 auto;
  box-shadow: 0 8px 20px rgba(0,0,0,0.08);
  cursor:pointer;
  animation: fadeIn .8s ease;
}

.gallery-item img {
  width:100%; height:100%; object-fit:cover;
  transition: transform .25s ease;
}

.gallery-item:hover img {
  transform: scale(1.06);
}

.gallery-btn {
  position:absolute;
  background: rgba(255,255,255,0.85);
  border:none;
  font-size:22px;
  width:44px;
  height:44px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  box-shadow: 0 8px 18px rgba(0,0,0,0.12);
  z-index: 5;
  transition: transform .25s, background .25s;
}

.gallery-btn:hover {
  transform: scale(1.1);
  background: rgba(255,255,255,1);
}

.gallery-btn.left { left: -150px; }
.gallery-btn.right { right: -150px; }

.size-list { display:flex; gap:20px; flex-wrap:wrap; justify-content:center; margin-top:18px; }

.size-card {
  display:flex;
  background:#e9f5ff;
  border-radius:10px;
  overflow:hidden;
  max-width:900px;
  width:100%;
  box-shadow: 0 8px 18px rgba(0,0,0,0.06);
  transition: transform .25s;
}

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

.size-card img { width:40%; object-fit:cover; }
.size-info { padding:18px; display:flex; flex-direction:column; justify-content:center; }

.color-grid { display:grid; gap:18px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); margin-top:18px; }

.color-item {
  background:#fff;
  border-radius:8px;
  padding:10px;
  text-align:center;
  box-shadow: 0 6px 18px rgba(0,0,0,0.04);
  transition: transform .25s;
}

.color-item:hover {
  transform: translateY(-4px);
}

.color-item img { height:90px; width:100%; object-fit:cover; border-radius:6px; }

.contact form { max-width:560px; margin: 24px auto 0; display:flex; flex-direction:column; gap:12px; }

.contact input,
.contact textarea {
  padding:12px 14px;
  border-radius:8px;
  border:1px solid #bbb;
  font-size:15px;
}

.contact button {
  padding:12px 14px;
  background:var(--accent);
  border:none;
  color:#000;
  font-weight:700;
  border-radius:8px;
  cursor:pointer;
  transition: transform .25s;
}

.contact button:hover {
  transform: translateY(-3px);
}

footer {
  text-align:center;
  padding:20px;
  background:#003554;
  color:#fff;
  margin-top:40px;
  display: flex;
  flex-direction: row;
}

.bottom-left { padding-right: 25%; padding-left: 5%; }
.bottom-right { padding-right: 5%; padding-left: 25%; }

#lightbox {
  display:none;
  position:fixed;
  inset:0;
  background: rgba(0,0,0,0.75);
  align-items:center;
  justify-content:center;
  z-index:9999;
  animation: fadeIn .3s ease;
}

#lightbox img { max-width:90%; max-height:90%; border-radius:10px; }

.lightbox-close {
  position:absolute;
  top:18px;
  right:18px;
  background:transparent;
  border:none;
  color:#fff;
  font-size:28px;
  cursor:pointer;
}

.lightbox-arrow {
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  font-size:45px;
  background: rgba(0,0,0,0.45);
  border:none;
  color:#fff;
  padding:12px 18px;
  cursor:pointer;
  border-radius:6px;
  transition: background 0.2s ease;
}

#lightboxPrev { left:25px; }
#lightboxNext { right:25px; }

.lightbox-arrow:hover {
  background: rgba(0,0,0,0.7);
}

.sr-only {
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

@media (max-width: 900px) {
  .gallery-item { width: 260px; height:170px; }
  .size-card { flex-direction:column; }
  .size-card img { width:100%; height:220px; }
  .nav-list { gap:10px; }
  .language-dropdown { top: 36px; right: -6px; }
  .gallery-btn.left { left: 4px; }
  .gallery-btn.right { right: 4px; }
}

@media (max-width: 600px) {
  .hero h2 { font-size:22px; }
  .hero p { font-size:14px; }
  .logo { font-size:16px; }
}