/* styles.css - place in same folder as index.html */
:root{
  --navy: #2b5671;    /* deep blue from logo */
  --coral: #ea8e80;   /* coral/pink from logo */
  --muted: #6f7c85;
  --bg: #f6f8f9;
  --card-bg: #ffffff;
  --max-width: 1100px;
  --radius: 10px;
  --gap: 18px;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

*{box-sizing:border-box}
body{
  margin:0;
  background:var(--bg);
  color:#123;
  -webkit-font-smoothing:antialiased;
}

.container{
  max-width:var(--max-width);
  margin:0 auto;
  padding:0 18px;
}

/* Header */
.site-header{
  background: linear-gradient(90deg, rgba(255,255,255,0.95), rgba(255,255,255,0.9));
  border-bottom:1px solid #e6eaec;
  position: sticky;
  top:0;
  z-index:100;
  backdrop-filter: blur(4px);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px 0;
}

/* Logo */
.logo img{
  height:70px;
  display:block;
  object-fit:contain;
}

/* Nav */
.main-nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  gap:18px;
  align-items:center;
}
.main-nav a{
  text-decoration:none;
  color:var(--navy);
  font-weight:600;
  padding:8px 10px;
  border-radius:6px;
  transition:all .18s ease;
}
.main-nav a:hover{ background:rgba(234,142,128,0.08); color:var(--coral) }

/* menu toggle for small screens */
.menu-toggle{
  display:none;
  border:0;
  background:transparent;
  font-size:22px;
  padding:8px;
  color:var(--navy);
}

/* Main content */
.site-main{ padding:32px 0 60px; }

.intro h1{
  margin:0 0 6px;
  color:var(--navy);
  font-size:28px;
}
.intro p{ color:var(--muted); margin:0 0 20px; }

/* thumbnail grid */
.thumb-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.thumb{
  background:var(--card-bg);
  border-radius:var(--radius);
  padding:12px;
  text-align:center;
  box-shadow: 0 6px 18px rgba(15,30,40,0.06);
}
.thumb img{
  width:100%;
  height:160px;
  object-fit:cover;
  border-radius:8px;
  display:block;
}
.thumb h3{
  margin:10px 0 0;
  font-size:16px;
}
.thumb a{ color:var(--navy); text-decoration:none; }

/* Footer */
.site-footer{
  background:#fff;
  border-top:1px solid #e6eaec;
  padding:18px 0;
}
.footer-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:14px;
  color:var(--muted);
}
.footer-nav a{
  color:var(--muted);
  text-decoration:none;
  margin-left:12px;
}
.footer-nav a:hover{ color:var(--navy) }

/* Responsive */
@media (max-width:900px){
  .thumb-grid{ grid-template-columns: repeat(2, 1fr); }
  .logo img{ height:60px; }
}
@media (max-width:640px){
  .header-inner{ align-items:center; }
  .menu-toggle{ display:block; }
  .main-nav{
    position: absolute;
    right:18px;
    top:78px;
    background:#fff;
    border:1px solid #e6eaec;
    box-shadow: 0 10px 30px rgba(10,20,30,0.08);
    border-radius:8px;
    overflow:hidden;
    transform-origin: top right;
    display:none;
  }
  .main-nav.open{ display:block; }
  .main-nav ul{ flex-direction:column; gap:0; padding:10px; }
  .main-nav li{ width:200px; }
  .main-nav a{ display:block; padding:10px 14px; }
  .thumb-grid{ grid-template-columns: 1fr; }
  .logo img{ height:56px; }
}
/* thumbnail styles with hover overlay */
.thumb {
  position: relative;
  overflow: visible;
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 12px;
  text-align: center;
  box-shadow: 0 6px 18px rgba(15,30,40,0.06);
}

.thumb-link { display:block; position:relative; border-radius:8px; overflow:hidden; }

.thumb img {
  width:100%;
  height:160px;
  object-fit:cover;
  display:block;
  transition: transform .4s ease;
  backface-visibility: hidden;
}

/* overlay that appears on hover */
.thumb .overlay {
  position: absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  pointer-events:none;
  background: linear-gradient(180deg, rgba(40,60,80,0.0) 0%, rgba(40,60,80,0.45) 100%);
  opacity:0;
  transition: opacity .28s ease;
}
.thumb .overlay span {
  color:#fff;
  font-weight:700;
  font-size:18px;
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
  transform:translateY(6px);
  transition: transform .28s ease;
}

/* hover state */
.thumb-link:hover img { transform: scale(1.06); }
.thumb-link:hover .overlay { opacity:1; }
.thumb-link:hover .overlay span { transform:translateY(0); }

/* keep original h3 styling */
.thumb h3 { margin-top:10px; font-size:16px; }

/* Floating home button */
.floating-home{
  position: fixed;
  right: 18px;
  bottom: 18px;
  background: var(--coral); /* logo color */
  color: #fff;
  width:48px;
  height:48px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow: 0 10px 30px rgba(30,40,50,0.18);
  text-decoration:none;
  z-index:9999;
  transition: transform .18s ease, opacity .18s ease;
}
.floating-home:hover{ transform: translateY(-4px); opacity:0.95; }
.floating-home svg{ display:block; width:22px; height:22px; color:#fff; }
@media (max-width:420px){
  .floating-home{ right:12px; bottom:12px; width:44px; height:44px; }
}

/* Floating Home Button for subpages */
.floating-home {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: var(--coral);
  color: #fff;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  text-decoration: none;
  z-index: 9999;
  transition: all 0.2s ease;
}
.floating-home:hover {
  transform: scale(1.1);
  background: #d67466;
}