:root{
    --brand:#1e7b85;      
    --brand-2:#a3e4e6;    
    --ink:#0f1b2d;
    --muted:#6b7a90;      
    --bg:#f6fbfc;        
    --card:#ffffff;
    --accent:#ffd166;    
}

html,body{
    background:var(--bg); 
    color:var(--ink); 
    scroll-behavior:smooth;
}
.i-hover:hover{
    background-color: #a3e4e6;
}
/* ====== NAVBAR ====== */
.navbar{
    backdrop-filter: blur(8px);
}
.nav-link{
position:relative;
    padding:.5rem .75rem;
    font-weight:600;
    color:var(--ink);
}
.nav-link:hover{
    color:var(--brand);
}    
.nav-link::after{
    content:""; 
    position:absolute; 
    left:.6rem;
    right:.6rem;
    bottom:.2rem; 
    height:2px; 
    background:linear-gradient(90deg,var(--brand),var(--accent)); 
    transform:scaleX(0); 
    transform-origin:right;
    transition:transform .3s ease;
}
.nav-link:hover::after{
    transform:scaleX(1); 
    transform-origin:left;
}
.section-title1{
      font-weight: 700;
      text-align: center;
      margin-bottom: 40px;
      margin-top: 50px;
    }
.section-title{
      font-weight: 700;
      text-align: center;
      /* margin-bottom: 40px; */
    }

/* ====== HERO ====== */
.hero{
    position:relative; 
    overflow:hidden;
}
.hero .bg-shape{
    position:absolute; 
    inset:0; 
    pointer-events:none; 
    opacity:.2;
    background: radial-gradient(1000px 500px at 10% -10%, var(--brand-2), transparent),
                radial-gradient(1200px 600px at 110% 10%, #9be2c6, transparent);
}
.hero .grid{
    position:absolute;
    inset:-20% -10% 0 -10%; 
    opacity:.25; 
    pointer-events:none;
}
.floating-badge{
    position:absolute;
    right:2rem;
    bottom:2rem;
    background:var(--card); border:1px solid #eaf1f3;
    border-radius:1.25rem; padding:.75rem 1rem; box-shadow:0 10px 30px rgba(0,0,0,.08);
    display:flex; gap:.5rem; align-items:center; animation:floatY 6s ease-in-out infinite;
}
@keyframes floatY{ 
    0%,100%{ transform:translateY(0)} 
    50%{ transform:translateY(-10px)}
 }

/* Animated survey line */
.survey-line path{ 
    stroke:var(--brand); 
    stroke-width:3; fill:none;
    stroke-linecap:round; 
    stroke-dasharray:6 10; 
    animation:dash 2.2s linear infinite; }
@keyframes dash{ 
    to{ 
        stroke-dashoffset:-200;
     } 
}

/* CTA primary button */
.btn-brand{ 
    background:linear-gradient(135deg,var(--brand),#14565d); 
    color:#fff; 
    border:0; 
    box-shadow:0 8px 20px rgba(30,123,133,.35);
}
.btn-brand:hover{ 
    filter:brightness(1.05); 
    transform:translateY(-1px); 
}

/* ====== CARDS ====== */
.card-pro{ 
    border:1px solid #eaf1f3; 
    border-radius:1.25rem; 
    background:var(--card); 
    overflow:hidden; 
    transition:transform .25s ease, box-shadow .25s ease;
}
.card-pro:hover{ 
    transform:translateY(-6px); 
    box-shadow:0 14px 40px rgba(15,27,45,.1);
}
.chip{ 
    display:inline-flex; 
    align-items:center; 
    gap:.4rem; 
    padding:.35rem .6rem; 
    border-radius:999px; 
    background:rgba(30,123,133,.08); 
    color:var(--brand); 
    font-weight:600; 
    font-size:.8rem; 
}

/* ====== TIMELINE ====== */
.timeline{ 
    position:relative;
}
.timeline::before{
    content:""; 
    position:absolute; 
    left:calc(1.15rem); 
    top:.5rem; 
    bottom:.5rem;
    width:2px; 
    background:linear-gradient(var(--brand),
    transparent);
}
.timeline .node{ 
    position:relative; 
    padding-left:3rem;
}
.timeline .node::before{ 
    content:""; 
    position:absolute; 
    left:.6rem; 
    top:.3rem; 
    width:1.1rem; 
    height:1.1rem; 
    border-radius:50%; 
    background:var(--card); 
    border:2px solid var(--brand);
    box-shadow:0 0 0 6px rgba(30,123,133,.12); 
}

/* ====== STATS ====== */
.stat{ 
    text-align:center; 
    padding:1.25rem;
}
.stat .num{ 
    font-size:clamp(1.8rem, 4vw, 3rem); 
    font-weight:800; letter-spacing:.5px;
    background:linear-gradient(90deg,var(--ink),var(--brand)); 
    /* -webkit-background-clip:text; */
   -webkit-text-fill-color:transparent;
}

/* ====== GALLERY ====== */
.gallery figure{ 
    position:relative;
    overflow:hidden; 
    border-radius:1rem;
}
.gallery img{
    width:100%;
    height:260px; 
    object-fit:cover; 
    transition:transform .6s ease;
}
.gallery figure:hover img{
     transform:scale(1.06);
}
.gallery figcaption{ 
    position:absolute; 
    inset:auto 0 0 0; 
    padding:1rem;
    color:#fff; 
    background:linear-gradient(to top, rgba(15,27,45,.75), transparent 70%);
}

/* ====== FOOTER ====== */
footer{ 
    background:#0b131c; 
    color:#c9d3df;
}
footer a{ 
    color:#c9d3df; 
    text-decoration:none;
}
footer a:hover{ 
    color:#fff; 
    text-decoration:underline;
}

/* Reveal on scroll */
.reveal{ 
    opacity:0; 
    transform:translateY(20px); 
    transition:all .6s cubic-bezier(.2,.7,.2,1); 
}
.reveal.in{ 
    opacity:1; 
    transform:translateY(0); 
}