/* ============================================================
   CVF - Customer Video Feedback
   ============================================================ */
.cvf-wrap{max-width:1200px;margin:0 auto;padding:40px 16px}
.cvf-head{text-align:center;margin-bottom:32px}
.cvf-head h3{font-size:28px;font-weight:600;margin:0 0 8px;color:#1a1a1a;line-height:1.3}
.cvf-head p{font-size:16px;color:#777;margin:0}

/* Lưới cố định 3 cột */
.cvf-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

.cvf-card{background:#fff;border:1px solid #ececec;border-radius:14px;overflow:hidden;cursor:pointer;transition:transform .25s ease,box-shadow .25s ease}
.cvf-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,.1)}

.cvf-thumb{position:relative;aspect-ratio:16/9;background:#000}
.cvf-thumb img{width:100%;height:100%;object-fit:cover;display:block}

.cvf-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.cvf-play span{width:58px;height:58px;border-radius:50%;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;transition:background .2s ease}
.cvf-card:hover .cvf-play span{background:#e02b20}
.cvf-play svg{width:24px;height:24px;fill:#fff;margin-left:3px}

.cvf-body{padding:16px 18px}
.cvf-quote{font-size:15px;color:#555;font-style:italic;margin:0 0 10px;line-height:1.5}
.cvf-name{font-size:15px;font-weight:600;margin:0;color:#1a1a1a}
.cvf-role{font-size:13px;color:#999;margin:2px 0 0}

/* Card ẩn (chờ bấm Xem thêm) */
.cvf-card.cvf-hidden{display:none}

/* Nút Xem thêm */
.cvf-more{text-align:center;margin-top:28px}
.cvf-more-btn{padding:12px 32px;border:1px solid #ddd;background:#fff;color:#1a1a1a;border-radius:8px;font-size:15px;font-weight:500;cursor:pointer;transition:all .2s ease}
.cvf-more-btn:hover{background:#1a1a1a;color:#fff;border-color:#1a1a1a}

/* ===================== LIGHTBOX ===================== */
.cvf-lb{display:none;position:fixed;inset:0;z-index:99999;background:rgba(0,0,0,.85);align-items:center;justify-content:center;padding:20px}
.cvf-lb.open{display:flex}
.cvf-lb-inner{width:100%;max-width:860px}
.cvf-lb-bar{display:flex;justify-content:flex-end;margin-bottom:10px}
.cvf-close{background:rgba(255,255,255,.15);color:#fff;border:none;width:40px;height:40px;border-radius:50%;font-size:24px;cursor:pointer;line-height:1;transition:background .2s ease}
.cvf-close:hover{background:rgba(255,255,255,.3)}
.cvf-video{position:relative;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:#000}
.cvf-video iframe{width:100%;height:100%;border:0;display:block}
.cvf-lb-cap{color:#fff;text-align:center;margin:14px 0 0;font-size:15px}

/* ===================== RESPONSIVE ===================== */
@media(max-width:900px){
    .cvf-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
    .cvf-grid{grid-template-columns:1fr}
    .cvf-head h3{font-size:23px}
}