*{box-sizing:border-box}body{margin:0;background:#f6f8fc;color:#1d293b;font:16px/1.65 system-ui,-apple-system,Segoe UI,sans-serif}a{color:inherit}.wrap{max-width:1100px;margin:auto;padding:0 22px}.header{background:#1466bd;color:white}.nav{min-height:72px;display:flex;justify-content:space-between;align-items:center;gap:16px}.brand{font-weight:800;font-size:26px;text-decoration:none}.nav nav{display:flex;align-items:center;gap:20px}.nav a{text-decoration:none}.nav select{padding:9px;border:0;border-radius:6px}.hero{background:#351923;color:#fff;padding:78px 0 90px}.center{text-align:center}.hero h1{font-size:clamp(29px,4vw,46px);line-height:1.2;margin:0 0 14px}.hero p{color:#eedfe4}.converter{display:flex;gap:12px;max-width:800px;margin:32px auto 0}.converter input{flex:1;min-width:0;border:0;border-radius:8px;padding:18px;font-size:16px}.converter button,.result button,.download{background:#1975d2;color:white;border:0;border-radius:8px;padding:16px 25px;font-weight:700;cursor:pointer}.result{background:white;color:#1c2736;border-radius:12px;padding:24px;margin:22px auto 0;max-width:700px;text-align:left;display:flex;gap:20px;align-items:start}.result[hidden],*[hidden]{display:none!important}.result img{width:180px;max-width:35%;border-radius:8px}.result select{padding:12px;margin:8px}.download{display:inline-block;text-decoration:none;margin:12px}.error{background:#ffe0e0;color:#8a1111;padding:12px;border-radius:8px;max-width:700px;margin:20px auto}.article{background:white;border-radius:12px;padding:32px;margin:34px 0;box-shadow:0 3px 20px #1d293b0a}.article h2{line-height:1.3}.article img{max-width:100%;height:auto}details{padding:16px;border-bottom:1px solid #e5e7eb}summary{cursor:pointer;font-weight:650}footer{background:#101b2e;color:#dbe4f0;padding:30px 0;margin-top:50px}@media(max-width:680px){.nav{flex-wrap:wrap;padding-top:12px;padding-bottom:12px}.nav nav{gap:10px;flex-wrap:wrap;font-size:13px}.hero{padding:55px 0}.converter{flex-direction:column}.result{flex-direction:column}.result img{max-width:100%}.article{padding:20px}}
.header{background:var(--header,#174c99)}.hero{background:var(--hero,#490e24)}footer{background:var(--footer,#101d37)}.converter button,.download{background:var(--primary,#2563eb)}
/* =====================================
   YTMP4 - RESPONSIVE ARTICLE TABLE
   Desktop + Tablet + Mobile
===================================== */

.article {
    min-width: 0;
    max-width: 100%;
}

/* Desktop table */
.article table {
    display: table;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    table-layout: fixed;
    border-collapse: collapse;
    border-spacing: 0;
    margin: 24px 0;
    font-size: 15px;
    line-height: 1.6;
    background: #ffffff;
}

/* Table headings and cells */
.article table th,
.article table td {
    min-width: 0;
    padding: 13px 15px;
    border: 1px solid #dbe3ed;
    text-align: left;
    vertical-align: top;
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: normal;
}

/* Header */
.article table th,
.article table thead td {
    background: #edf3fc;
    color: #172033;
    font-weight: 700;
}

/* Alternate rows */
.article table tbody tr:nth-child(even) {
    background: #f8fafc;
}

/* Hover */
@media (hover: hover) {
    .article table tbody tr:hover {
        background: #eff6ff;
    }
}

/* Tablet */
@media screen and (max-width: 768px) {
    .article table {
        font-size: 13px;
    }

    .article table th,
    .article table td {
        padding: 10px 8px;
    }
}

/* Mobile */
@media screen and (max-width: 480px) {
    .article {
        padding: 16px;
        min-width: 0;
    }

    .article table {
        display: table;
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        table-layout: fixed !important;
        font-size: 11px;
        line-height: 1.45;
    }

    .article table th,
    .article table td {
        min-width: 0 !important;
        padding: 8px 5px;
        font-size: 11px;
        white-space: normal !important;
        overflow-wrap: anywhere !important;
    }

    .article table img {
        max-width: 100%;
        height: auto;
    }
}
/* Independently editable theme variables; FAQs are always expanded text-only cards. */
body{background:var(--page-background,#f6f8fc);color:var(--paragraph,#374151)}
.header{color:var(--header-text,#ffffff)}.header a{color:inherit}.nav select{background:var(--language-background,#fff);color:var(--language-text,#111827)}
.hero{color:var(--hero-text,#fff)}.hero p{color:inherit;opacity:.85}
.article{background:var(--article-background,#fff);color:var(--paragraph,#374151)}
.article h2,.article h3{color:var(--heading,#111827)}.article a{color:var(--link,#2563eb)}
.converter input{background:var(--input-background,#fff);color:var(--input-text,#111827);border:1px solid var(--input-border,#cbd5e1)}
.converter button,.download,.result button{color:var(--button-text,#fff)}.converter button:hover,.download:hover,.result button:hover{background:var(--button-hover,#1d4ed8)}
footer{color:var(--footer-text,#dbe4f0)}
.faq-section{background:var(--faq-section-background,#fff)}
.faq-card{background:var(--faq-card-background,#fff);border:1px solid var(--faq-border,#e5e7eb);border-radius:12px;padding:22px 24px;margin:14px 0;box-shadow:0 2px 12px rgba(15,23,42,.035)}
.faq-card h3{color:var(--faq-question,#111827);font-size:1.1rem;margin:0 0 8px;line-height:1.4}
.faq-card p{color:var(--faq-answer,#475569);margin:0;line-height:1.75;white-space:pre-line}
@media(max-width:680px){.faq-card{padding:18px}}