.hero {
    text-align: center;
    margin-bottom: 40px;
    padding: 36px 28px;
    background: linear-gradient(
        160deg,
        rgba(255, 255, 255, 0.88),
        rgba(244, 248, 252, 0.88)
    );
    border: 4px solid var(--clip-color, #d9e2ee); /* fallback */
    border-radius: 14px;
    box-shadow: 0 10px 24px rgba(26, 50, 74, 0.1);
    animation: rise-in 0.65s ease both;
}

/* Ensure headings with IDs appear below fixed header-nav when scrolled to */
.hero[id] {
scroll-margin-top: 220px;
}

.hero h1{
font-size:42px;
margin-bottom:15px;
font-family:"Segoe UI", "Nunito Sans", sans-serif;
letter-spacing:0.5px;
line-height:1.15;
color:#1f2f45;
}

.hero p{
max-width:700px;
margin:auto;
font-size:18px;
color:#4f5f73;
}

.hero-image{
margin:40px 0;
display:flex;
justify-content:center;
animation:rise-in 0.75s ease 0.12s both;
}

.image-placeholder a {
    color: rgb(255, 255, 255);
}
.image-placeholder img {
width:100%;
height:300px;
display:flex;
align-items:center;
justify-content:center;
background:
linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(232, 241, 248, 0.9)),
repeating-linear-gradient(
45deg,
rgba(94, 143, 177, 0.11) 0,
rgba(94, 143, 177, 0.11) 10px,
transparent 10px,
transparent 20px
);
border-radius:14px;
box-shadow:0 10px 24px rgba(26, 50, 74, 0.1);
font-weight:700;
color:#2b5f87;
animation:float-soft 5.5s ease-in-out infinite;
}

.survey{
text-align:center;
margin:50px 0;
padding:30px 22px;
background:#ffffff;
border-radius:14px;
border:1px solid #d9e2ee;
box-shadow:0 10px 24px rgba(26, 50, 74, 0.1);
animation:rise-in 0.75s ease 0.2s both;
}

.qr-placeholder{
width:200px;
height:200px;
margin:auto;
margin-top:20px;
display:flex;
align-items:center;
justify-content:center;
background:linear-gradient(135deg, #ffffff, #eef7f5);
border-radius:16px;
box-shadow:0 10px 24px rgba(26, 50, 74, 0.1);
color:#2f6259;
font-weight:700;
transition:transform 0.3s ease, box-shadow 0.3s ease;
}

.qr-placeholder img {
max-width: 100%;
max-height: 100%;
width: auto;
height: auto;
object-fit: contain;
display: block;
}

.qr-placeholder:hover{
transform:translateY(-4px) rotate(-1deg);
box-shadow:0 16px 28px rgba(26, 50, 74, 0.14);
}

.references{
margin-top:50px;
animation:rise-in 0.75s ease 0.28s both;
}

.references h2 {
    color: white;
}

.citation-box{
background:#ffffff;
padding:20px;
border-radius:10px;
border:1px solid #d9e2ee;
box-shadow:0 10px 24px rgba(26, 50, 74, 0.1);
position:relative;
}

.citation-box::before{
content:"";
position:absolute;
left:0;
top:0;
bottom:0;
width:5px;
background:linear-gradient(180deg, #5e8fb1, #3f7a6e);
border-radius:10px 0 0 10px;
}

.citation-box p{
margin-bottom:10px;
padding-left:12px;
color:#31465e;
text-indent: -47px;
padding-left: 37px;
}

@keyframes rise-in{
from{
opacity:0;
transform:translateY(18px);
}
to{
opacity:1;
transform:translateY(0);
}
}

@keyframes float-soft{
0%,
100%{
transform:translateY(0);
}
50%{
transform:translateY(-6px);
}
}

@media (max-width:760px){
.hero{
padding:24px 18px;
}

.hero h1{
font-size:32px;
}

.hero p{
font-size:16px;
}

.image-placeholder{
height:220px;
}

.survey{
padding:24px 16px;
}

.qr-placeholder{
width:170px;
height:170px;
}
}

@media (prefers-reduced-motion:reduce){
.hero,
.hero-image,
.survey,
.references,
.image-placeholder{
animation:none;
}

.qr-placeholder{
transition:none;
}
}