/* VIET69 Theme v1.0.1 — Smart 404 & Download CTA */
.vtt-library-stage--404{padding-top:24px}.vtt-404-panel{overflow:hidden}.vtt-404-hero{position:relative;display:grid;grid-template-columns:minmax(170px,.34fr) minmax(0,1fr);gap:28px;align-items:center;padding:34px;border:2px solid var(--vtt-line);border-radius:16px;background:linear-gradient(135deg,color-mix(in srgb,var(--vtt-yellow,#ffd82f) 17%,var(--vtt-panel)),var(--vtt-panel) 62%);box-shadow:7px 8px 0 rgba(7,70,111,.24)}.vtt-404-code{font:900 clamp(82px,11vw,150px)/.8 Quicksand,Inter,sans-serif;letter-spacing:-.08em;color:var(--vtt-ink);text-shadow:5px 6px 0 var(--vtt-yellow,#ffd82f)}.vtt-404-copy h1{max-width:850px;margin:7px 0 10px;font-size:clamp(25px,3.1vw,42px);line-height:1.08}.vtt-404-copy>p{max-width:760px;margin:0 0 14px;color:var(--vtt-muted)}.vtt-404-query{display:inline-flex;align-items:center;gap:7px;max-width:100%;padding:7px 10px;border:1px solid var(--vtt-line);border-radius:8px;font:700 12px/1.3 Inter,sans-serif;overflow-wrap:anywhere;background:var(--vtt-soft)}.vtt-404-search{display:flex;align-items:stretch;gap:8px;max-width:760px;margin-top:18px}.vtt-404-search input{min-width:0;flex:1;height:46px;padding:0 14px;border:1px solid var(--vtt-line);border-radius:10px;background:var(--vtt-panel);color:var(--vtt-ink);font:600 14px/1 Inter,sans-serif}.vtt-404-search button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:46px;padding:0 18px;border:1px solid #074d72;border-radius:10px;color:#fff;background:#0b628f;font:800 13px/1 Inter,sans-serif;cursor:pointer;transition:transform .18s ease,background .18s ease,box-shadow .18s ease}.vtt-404-search button:hover{transform:translateY(-1px);background:#0f779f;box-shadow:0 8px 18px rgba(7,70,111,.22)}.vtt-404-home{display:inline-flex!important;margin-top:12px}.vtt-404-section{margin-top:34px}.vtt-404-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
.vtt-download-control{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:36px;padding:0 13px;border:1px solid #c95c0d;border-radius:8px;color:#fff!important;background:linear-gradient(135deg,#f47c20,#ff9a3d);box-shadow:2px 3px 0 rgba(94,43,5,.25);font:800 12px/1 Inter,sans-serif;text-decoration:none!important;transition:transform .18s ease,box-shadow .18s ease,filter .18s ease}.vtt-download-control:hover,.vtt-download-control:focus-visible{color:#fff!important;transform:translateY(-1px);filter:saturate(1.08);box-shadow:0 9px 19px rgba(244,124,32,.28)}.vtt-download-control i{font-size:14px;transition:transform .18s ease}.vtt-download-control:hover i{transform:translateY(2px)}
html[data-ec18-theme="dark"] .vtt-404-hero{border-color:#344255;background:linear-gradient(135deg,rgba(244,124,32,.15),#111825 56%,#0d1219);box-shadow:7px 8px 0 rgba(244,124,32,.31)}html[data-ec18-theme="dark"] .vtt-404-code{color:#f3f5f8;text-shadow:5px 6px 0 #f47c20}html[data-ec18-theme="dark"] .vtt-404-query{color:#d6dde6;background:#192536;border-color:#344255}html[data-ec18-theme="dark"] .vtt-404-search input{color:#f3f5f8;background:#0e141b;border-color:#344255}html[data-ec18-theme="dark"] .vtt-404-search button{color:#111;background:linear-gradient(135deg,#f47c20,#f2c14e);border-color:#ff9a45}html[data-ec18-theme="dark"] .vtt-download-control{color:#111!important;background:linear-gradient(135deg,#ff7a1a,#f2c14e);border-color:#ff9f45;box-shadow:2px 3px 0 rgba(0,0,0,.34)}html[data-ec18-theme="dark"] .vtt-download-control:hover{color:#111!important;box-shadow:0 10px 22px rgba(244,124,32,.24)}
@media(max-width:1100px){.vtt-404-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.vtt-404-hero{grid-template-columns:145px minmax(0,1fr)}}
@media(max-width:767px){.vtt-library-stage--404{padding-top:14px}.vtt-404-hero{display:block;padding:22px;border-radius:12px;box-shadow:4px 5px 0 rgba(7,70,111,.2)}.vtt-404-code{margin-bottom:20px;font-size:82px}.vtt-404-copy h1{font-size:27px}.vtt-404-search{flex-direction:column}.vtt-404-search button{width:100%}.vtt-404-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.vtt-download-control--single{flex:1 1 190px;min-height:40px}.vtt-video-utility>.vtt-bookmark-form,.vtt-video-utility>.vtt-bookmark-control--single{flex:1 1 150px}.vtt-video-utility>.vtt-bookmark-form .vtt-bookmark-control--single{width:100%;min-height:40px}}
@media(max-width:420px){.vtt-404-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.vtt-download-control--single{flex-basis:100%}.vtt-video-utility>.vtt-bookmark-form,.vtt-video-utility>.vtt-bookmark-control--single{flex-basis:100%}}