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

:root{
    --bg:#f5f7fa;
    --text:#1b1f24;
    --muted:#5f6b7a;
    --primary:#1565c0;
    --primary-dark:#0f4a8a;
    --card:#ffffff;
    --line:#e1e6ee;
}

body{
    font-family:Arial, sans-serif;
    background:var(--bg);
    color:var(--text);
    line-height:1.6;
}

img{
    max-width:100%;
    height:auto;
    display:block;
}

a{
    color:inherit;
}

/* TOPBAR */
.topbar{
    width:100%;
    background:#ffffff;
    border-bottom:1px solid var(--line);
    position:sticky;
    top:0;
    z-index:50;
}

.topbar-inner{
    max-width:1200px;
    margin:0 auto;
    height:64px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:0 24px;
    gap:24px;
}

.brand{
    display:flex;
    align-items:center;
    gap:10px;
    text-decoration:none;
    color:var(--text);
    font-weight:bold;
}

.brand-logo{
    width:28px;
    height:28px;
}

.brand-text{
    font-size:18px;
}

.menu{
    display:flex;
    align-items:center;
    gap:24px;
}

.menu a{
    color:var(--muted);
    text-decoration:none;
    font-weight:500;
}

.menu a.active{
    color:var(--text);
}

.topbar-actions{
    display:none;
}

/* LAYOUT */
main{
    max-width:1200px;
    margin:0 auto;
    padding:0 24px 80px;
}

.section{
    margin-top:60px;
}

.section-header h2{
    font-size:28px;
    margin-bottom:8px;
}

.section-header p{
    color:var(--muted);
}

.content p{
    margin-top:16px;
}

.content ul{
    margin:14px 0 0 20px;
}

.content li{
    margin-top:8px;
}

/* HERO */
.hero{
    padding:40px 0 10px;
}

.hero-content{
    display:grid;
    grid-template-columns:1.2fr 0.8fr;
    gap:32px;
    align-items:center;
}

.eyebrow{
    text-transform:uppercase;
    letter-spacing:2px;
    font-size:12px;
    color:var(--muted);
    margin-bottom:8px;
}

h1{
    font-size:36px;
    line-height:1.2;
    margin-bottom:16px;
}

.lead{
    font-size:18px;
    color:var(--muted);
}

.cta-row{
    display:flex;
    gap:12px;
    margin-top:20px;
}

.note{
    color:var(--muted);
    font-size:14px;
    margin-top:12px;
}

.home-hero .hero-content{
    grid-template-columns:1fr;
    justify-items:center;
    text-align:center;
}

.home-hero .hero-text{
    max-width:760px;
}

.home-hero .cta-row{
    justify-content:center;
}

.breadcrumbs{
    margin-top:22px;
    font-size:14px;
    color:var(--muted);
}

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

.supported-grid{
    margin-top:22px;
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:10px;
}

.format-chip{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:10px;
    padding:10px 12px;
    text-align:center;
    font-weight:600;
    color:var(--muted);
}

.steps{
    margin-top:24px;
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:14px;
}

.step-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:12px;
    padding:16px;
}

.step-card h3{
    font-size:18px;
}

.benefits{
    margin-top:24px;
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:14px;
}

.benefit-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:12px;
    padding:16px;
}

.benefit-card strong{
    display:block;
    margin-bottom:6px;
}

.internal-links{
    margin-top:20px;
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px;
}

.internal-links a{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:10px;
    text-decoration:none;
    color:var(--primary);
    font-weight:600;
    padding:12px;
}

.ad-slot{
    margin-top:28px;
    border:1px dashed #a7b6cc;
    border-radius:10px;
    background:#f8fbff;
    color:#63748d;
    text-align:center;
    padding:16px;
    font-size:14px;
}

.faq{
    margin-top:24px;
}

.faq-item{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:12px;
    padding:14px 16px;
    margin-top:12px;
}

.faq-item h3{
    font-size:18px;
}

.converter-box{
    margin-top:24px;
    background:#f2f7fd;
    border:1px solid var(--line);
    border-radius:16px;
    padding:16px;
}

.converter-row{
    margin-top:12px;
}

label{
    display:block;
    font-weight:600;
    margin-bottom:6px;
}

input,select,button{
    width:100%;
    padding:12px 14px;
    border-radius:10px;
    font-size:15px;
}

input,select{
    border:1px solid #d7e2f0;
    background:#f8fafc;
}

button{
    margin-top:16px;
    background:var(--primary);
    color:white;
    border:none;
    cursor:pointer;
    font-size:16px;
}

button:hover{
    background:var(--primary-dark);
}

.status{
    margin-top:16px;
    border:1px solid #d6e6fa;
    background:#f4f9ff;
    border-radius:10px;
    padding:12px;
    color:#20558e;
}

.trust-box{
    margin-top:24px;
    background:#ecfff6;
    border:1px solid #bbe7d3;
    border-radius:12px;
    padding:16px;
}

.trust-box p{
    margin-top:10px;
}

.btn{
    display:inline-block;
    padding:12px 20px;
    background:var(--primary);
    color:white;
    text-decoration:none;
    border-radius:8px;
    font-weight:bold;
}

.btn.ghost{
    background:transparent;
    color:var(--primary);
    border:1px solid var(--primary);
}

.footer{
    background:#0f172a;
    color:#e2e8f0;
    padding:30px 24px;
}

.footer a{
    color:#e2e8f0;
    text-decoration:none;
}

.footer-content{
    max-width:1200px;
    margin:0 auto;
}

@media (max-width: 900px){
    .topbar-inner{
        height:auto;
        flex-direction:column;
        align-items:flex-start;
        padding:12px 20px 16px;
        gap:10px;
    }

    .menu{
        flex-wrap:wrap;
        gap:12px 16px;
    }

    .hero-content{
        grid-template-columns:1fr;
    }

    .cta-row{
        flex-direction:column;
        align-items:flex-start;
    }

    .supported-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
    }

    .steps,
    .benefits,
    .internal-links{
        grid-template-columns:1fr;
    }
}