:root{
    --primary:#0f62fe;
    --secondary:#eef4ff;
    --dark:#1f2937;
    --text:#4b5563;
    --border:#e5e7eb;
    --success:#10b981;
    --danger:#ef4444;
    --warning:#f59e0b;
    --radius:18px;
}

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family: 'Segoe UI', sans-serif;
    background:#f8fafc;
    color:var(--dark);
    line-height:1.7;
}

.blog-container{
    max-width:1200px;
    margin:auto;
    padding:40px 20px;
}

.hero{
    text-align:center;
    padding:70px 30px;
    background:linear-gradient(135deg,#0f62fe,#2563eb);
    color:#fff;
    border-radius:var(--radius);
    margin-bottom:40px;
}

.hero h1{
    font-size:3rem;
    margin-bottom:20px;
}

.hero p{
    max-width:850px;
    margin:auto;
    font-size:1.1rem;
    opacity:.95;
}

.section{
    margin:60px 0;
}

.section-title{
    display: block;
    font-size:2rem;
    margin-bottom:25px;
    position:centre;
    padding-left:18px;
    text-align: center;
}

.section-title::before{
    content:"";
    position:absolute;
    left:0;
    top:5px;
    width:5px;
    height:35px;
    background:var(--primary);
    border-radius:10px;
}
.section-title:link,
.section-title:visited {
    text-decoration: none;
    color: inherit;
    text-align: center;
    font-size:2rem;
}
.section-title a,
.section-title a:visited {
    text-decoration: none;
    color: Black;
}

.section-title a:hover,
.section-title a:focus {
    text-decoration: none;
    color: blue;
}
/* Hover effect (important for UX + SEO engagement signals) */
.section-title:hover {
    text-decoration: underline;
    color: #0b1f3a; /* optional brand colour */
    font-size:2.5rem;
}

/* Keyboard accessibility */
.section-title:focus {
    outline: 2px solid #0b1f3a;
    outline-offset: 4px;
    border-radius: 4px;
}

.card{
    background:#fff;
    padding:30px;
    border-radius:var(--radius);
    box-shadow:0 10px 30px rgba(0,0,0,.05);
    border:1px solid var(--border);
}

.grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:20px;
}

.info-box{
     text-decoration: none;
    color: inherit;
    background:#fff;
    border-radius:var(--radius);
    padding:25px;
    border:1px solid var(--border);
    transition:.3s;
}


  

.info-box:hover {
    text-decoration: none;
    color: inherit;

    transform:translateY(-4px);
}

.info-box h3{
     text-decoration: none;
    color: inherit;
    margin-bottom:12px;
    color:var(--primary);
}

.highlight{
    background:var(--secondary);
    border-left:5px solid var(--primary);
    padding:25px;
    border-radius:12px;
    margin:25px 0;
}

.comparison{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(350px,1fr));
    gap:25px;
}

.compare-card{
    background:#fff;
    border-radius:var(--radius);
    padding:30px;
    border:1px solid var(--border);
}

.compare-card h3{
    margin-bottom:20px;
}

.compare-card ul{
    list-style:none;
}

.compare-card li{
    padding:10px 0;
    border-bottom:1px solid #f1f1f1;
}

.compare-card li:last-child{
    border-bottom:none;
}

.old h3{
    color:var(--danger);
}

.new h3{
    color:var(--success);
}

.timeline{
    position:relative;
    margin-top:30px;
}

.timeline::before{
    content:"";
    position:absolute;
    left:15px;
    top:0;
    bottom:0;
    width:3px;
    background:var(--primary);
}

.timeline-item{
    position:relative;
    padding-left:50px;
    margin-bottom:30px;
}

.timeline-item::before{
    content:"";
    width:16px;
    height:16px;
    background:var(--primary);
    border-radius:50%;
    position:absolute;
    left:8px;
    top:6px;
}

.stats{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:20px;
}

.stat{
    text-align:center;
    background:#fff;
    padding:30px;
    border-radius:var(--radius);
    border:1px solid var(--border);
}

.stat-number{
    font-size:2.5rem;
    font-weight:bold;
    color:var(--primary);
}

.checklist{
    list-style:none;
}

.checklist li{
    margin-bottom:15px;
    padding-left:30px;
    position:relative;
}

.checklist li::before{
    content:"✓";
    color:var(--success);
    font-weight:bold;
    position:absolute;
    left:0;
}

.cta{
    background:linear-gradient(135deg,#0f62fe,#2563eb);
    color:#fff;
    text-align:center;
    padding:60px 30px;
    border-radius:var(--radius);
    margin-top:60px;
}

.cta h2{
    margin-bottom:15px;
}

.sources{
    margin-top:40px;
    font-size:.95rem;
}

.sources a{
    color:var(--primary);
    text-decoration:none;
}

@media(max-width:768px){
    .hero h1{
        font-size:2.1rem;
    }
}