/* Tải đề trắc nghiệm PDF (26/10/2026) */
.cvc-pdf-btn{display:inline-flex;align-items:center;gap:7px;padding:9px 15px;border:1px solid #c9a05a;border-radius:12px;background:#fffaf0;color:#14365a;font:700 14px/1.2 "Times New Roman",Times,serif;cursor:pointer;transition:background .15s,box-shadow .15s}
.cvc-pdf-btn:hover{background:#fbefd6;box-shadow:0 4px 12px #c9a05a33}
.cvc-pdf-btn:focus-visible{outline:2px solid #14365a;outline-offset:2px}
.cvc-pdf-btn.is-block{display:flex;width:100%;justify-content:center}
.cvc-pdf-btn.is-small{padding:6px 11px;font-size:13px}
html.cvc-pdf-open{overflow:hidden}
.cvc-pdf-modal{position:fixed;inset:0;z-index:100000;display:flex;align-items:center;justify-content:center;padding:16px}
.cvc-pdf-modal[hidden]{display:none!important}
.cvc-pdf-backdrop{position:absolute;inset:0;background:rgba(11,32,57,.55)}
.cvc-pdf-dialog{position:relative;width:min(860px,100%);max-height:calc(100vh - 32px);display:flex;flex-direction:column;background:#fff;border-radius:18px;box-shadow:0 24px 60px rgba(11,32,57,.35);overflow:hidden;font-family:"Times New Roman",Times,serif;color:#1d2733}
.cvc-pdf-top{display:flex;justify-content:space-between;gap:12px;padding:16px 20px 10px;border-bottom:1px solid #e6ebf0}
.cvc-pdf-kicker{margin:0;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:#a5803f;font-weight:700}
.cvc-pdf-top h2{margin:4px 0 2px;font-size:19px;line-height:1.3;color:#14365a;text-wrap:balance}
.cvc-pdf-sub{margin:0;font-size:13.5px;color:#5c6b7a}
.cvc-pdf-x{flex:0 0 auto;width:36px;height:36px;border:1px solid #d8e0e8;border-radius:10px;background:#fff;font-size:22px;line-height:1;color:#14365a;cursor:pointer}
.cvc-pdf-variants{display:flex;flex-wrap:wrap;gap:8px;padding:10px 20px}
.cvc-pdf-variant{padding:7px 13px;border:1px solid #cfd9e3;border-radius:999px;background:#fff;color:#14365a;font:600 14px "Times New Roman",Times,serif;cursor:pointer}
.cvc-pdf-variant.is-on{background:#14365a;border-color:#14365a;color:#fff}
.cvc-pdf-body{flex:1 1 auto;overflow:auto;padding:14px 20px;background:#eef2f6}
.cvc-pdf-loading{margin:30px 0;text-align:center;color:#5c6b7a}
.cvc-pdf-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:12px 20px;border-top:1px solid #e6ebf0}
.cvc-pdf-note{margin:0;flex:1 1 260px;font-size:13.5px;color:#4a5a6a}
.cvc-pdf-note.is-error{color:#b42318;font-weight:700}
.cvc-pdf-go{padding:11px 20px;border:0;border-radius:12px;background:#14365a;color:#fff;font:700 15px "Times New Roman",Times,serif;cursor:pointer}
.cvc-pdf-go:hover{background:#0b2039}
.cvc-pdf-go:disabled{opacity:.6;cursor:wait}
/* Trang xem trước giống file PDF */
.cvp-sheet{position:relative;max-width:720px;margin:0 auto;background:#fff;box-shadow:0 2px 12px rgba(15,42,74,.18);overflow:hidden;font-size:15px;line-height:1.45;color:#1d2733}
.cvp-wm{position:absolute;inset:-40% -40%;display:flex;flex-wrap:wrap;align-content:center;justify-content:center;gap:120px 80px;transform:rotate(-35deg);pointer-events:none;user-select:none;z-index:2}
.cvp-wm span{font:700 34px Arial,sans-serif;color:rgba(15,42,74,.06);white-space:nowrap}
.cvp-banner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:14px 22px 16px;background:linear-gradient(110deg,#0f2a4a 0%,#173c66 60%,#1d4a78 100%);color:#fff;font-family:"Be Vietnam Pro",Arial,sans-serif}
.cvp-brand{display:flex;align-items:center;gap:10px;min-width:0}
.cvp-mark{flex:none;width:46px;height:46px;background:url(../brand/icon-light-128.png) center/contain no-repeat}
.cvp-brand b{display:block;font-size:19px;letter-spacing:.3px;line-height:1.1}
.cvp-brand small{display:block;margin-top:3px;font-size:9.5px;font-weight:600;letter-spacing:.9px;color:#c9a052}
.cvp-aic{display:flex;align-items:center;gap:8px;padding:5px 14px 5px 5px;border:1px solid #c9a052;border-radius:999px;background:rgba(201,160,82,.16)}
.cvp-aic-i{flex:none;width:30px;height:30px;border-radius:50%;background:#c9a052 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230f2a4a' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4.5 5h15a1.5 1.5 0 0 1 1.5 1.5v9a1.5 1.5 0 0 1-1.5 1.5H11l-4.5 3.5V17h-2A1.5 1.5 0 0 1 3 15.5v-9A1.5 1.5 0 0 1 4.5 5Z'/%3E%3Cpath d='M12 7.6l1 2.3 2.3 1-2.3 1-1 2.3-1-2.3-2.3-1 2.3-1Z'/%3E%3C/svg%3E") center/19px no-repeat}
.cvp-aic b{display:block;font-size:12.5px;letter-spacing:.3px}
.cvp-aic b i{font-style:normal;font-size:8.5px;padding:1px 5px;margin-left:3px;border-radius:4px;background:#c9a052;color:#0f2a4a;vertical-align:1px}
.cvp-aic small{display:block;font-size:10.5px;color:#e8eef5}
.cvp-titlebar{position:relative;padding:12px 22px 11px;background:#f8f2e4;border-top:3px solid #c9a052}
.cvp-titlebar b{display:block;font:700 16px/1.3 "Be Vietnam Pro",Arial,sans-serif;color:#0f2a4a;text-wrap:balance}
.cvp-titlebar small{display:block;margin-top:3px;font-size:13px;color:#4a5866}
.cvp-meta{display:flex;flex-wrap:wrap;gap:4px 14px;margin-top:6px;font:500 12px "Be Vietnam Pro",Arial,sans-serif;color:#0f2a4a}
.cvp-meta span:not(:last-child):after{content:"·";margin-left:14px;color:#c9a052}
.cvp-body{position:relative;padding:14px 26px 6px;font-family:"Times New Roman",Tinos,Times,serif}
.cvp-q{margin:0 0 11px}
.cvp-q p{margin:0 0 3px}
.cvp-qn{color:#0f2a4a}
.cvp-q ul{list-style:none;margin:0;padding:0 0 0 18px}
.cvp-ans{margin:5px 0 0;padding:7px 10px;background:#fcefc4;border-left:4px solid #c9a052;font-size:14px}
.cvp-ans i{color:#6a5a35}
.cvp-more{margin:12px 0 8px;padding:9px;text-align:center;border:1px dashed #c9a052;color:#0f2a4a;font-weight:700;background:#fffaf0}
.cvp-foot{position:relative;display:flex;align-items:center;gap:12px;padding:10px 22px;background:#f8f2e4;border-top:2px solid #c9a052;font-family:"Be Vietnam Pro",Arial,sans-serif}
.cvp-foot-t{flex:1;min-width:0}
.cvp-foot-t b{display:block;font-size:11.5px;color:#0f2a4a}
.cvp-foot-t small{display:block;font-size:10.5px;color:#7a8794}
.cvp-page{font-size:11px;color:#4a5866;white-space:nowrap}
.cvp-qr{flex:none;width:58px;height:58px;padding:4px;background:#fff;border:1px solid #0f2a4a;border-radius:6px;box-sizing:border-box}
.cvp-qr svg{display:block;width:100%;height:100%}
@media (max-width:600px){.cvc-pdf-dialog{max-height:calc(100vh - 16px)}.cvc-pdf-modal{padding:8px}.cvp-sheet{font-size:14px}.cvp-banner,.cvp-titlebar,.cvp-foot{padding-left:14px;padding-right:14px}.cvp-body{padding-left:14px;padding-right:14px}.cvp-aic{width:100%}.cvc-pdf-top h2{font-size:17px}}
@media (prefers-reduced-motion:reduce){.cvc-pdf-btn{transition:none}}
.cvc-pdf-top h2{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
@media (max-width:600px){.cvc-pdf-top h2{-webkit-line-clamp:2}.cvp-titlebar b{font-size:14.5px}.cvp-page{display:none}}