.vmut-soft-wrapper {
    --neo-border: 3px solid #111111;
    --neo-shadow: 5px 5px 0px #111111;
    --neo-shadow-active: 0px 0px 0px #111111;
    
    --bg-main: #fcfcfc;
    --bg-card: #ffffff;
    --clr-emerald: #2a9d8f;
    --clr-slate: #264653;
    --clr-orange: #f4a261;
    --clr-yellow: #fdfd96;
    --clr-silver: #e9ecef;
    --clr-danger: #e76f51;

    max-width: 950px;
    margin: 25px auto;
    font-family: system-ui, -apple-system, sans-serif;
    color: #111;
    background: var(--bg-main);
    padding: 25px;
    border: var(--neo-border);
    border-radius: 16px;
    box-shadow: var(--neo-shadow);
}
.vmut-soft-wrapper * { box-sizing: border-box; }

.vmut-soft-header {
    background: var(--clr-slate); padding: 20px; color: #fff;
    border: var(--neo-border); border-radius: 12px;
    text-align: center; margin-bottom: 25px; box-shadow: var(--neo-shadow);
}
.vmut-soft-header h2 { margin: 0 0 10px 0; font-size: 1.8rem; font-weight: 900; text-transform: uppercase; color: var(--clr-emerald); }
.vmut-soft-header p { margin: 0; font-weight: 700; font-size: 0.95rem; }

.vmut-body {
    background: var(--bg-card); padding: 25px;
    border: var(--neo-border); border-radius: 12px; box-shadow: var(--neo-shadow);
}

/* BỐ CỤC 2 CỘT */
.vmut-main-layout { display: flex; flex-direction: column; gap: 25px; }
.vmut-col { flex: 1; min-width: 0; }
@media (min-width: 768px) { .vmut-main-layout { flex-direction: row; align-items: flex-start; } }

.vmut-group { margin-bottom: 20px; }
.vmut-label { font-weight: 900; font-size: 1rem; margin-bottom: 10px; display: block; color: var(--clr-slate); }
.vmut-flex-between { display: flex; justify-content: space-between; align-items: center; }

/* Khung Upload */
.vmut-upload-box {
    background: var(--clr-emerald); border: 2px dashed #111; border-radius: 12px;
    padding: 22px 18px; text-align: center; cursor: pointer; transition: 0.2s;
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; color: #fff;
    box-shadow: 4px 4px 0px #111;
}
.vmut-upload-box:hover, .vmut-upload-box.dragover { filter: brightness(0.95); transform: translateY(-2px); }
.vmut-icon { font-size: 2.3rem; line-height: 1; }
.vmut-filename { font-weight: 900; font-size: 1rem; word-break: break-all; }
.vmut-upload-sub { font-size: 0.82rem; font-weight: 700; opacity: 0.9; }

/* Video Preview */
.vmut-video-container {
    width: 100%; border-radius: 12px; border: 2px solid #111;
    overflow: hidden; background: #000; line-height: 0; box-shadow: 4px 4px 0px #111;
}
#vmut-player { width: 100%; max-height: 380px; display: block; }

.vmut-meta-bar {
    display: flex; justify-content: space-between; margin-top: 10px;
    background: #f1f3f5; border: 2px solid #111; border-radius: 8px;
    padding: 8px 12px; font-size: 0.88rem; font-weight: 800;
}

.vmut-btn-compare {
    background: #fff; border: 2px solid #111; border-radius: 6px; padding: 5px 10px;
    font-size: 0.8rem; font-weight: 800; cursor: pointer; box-shadow: 2px 2px 0px #111;
}
.vmut-btn-compare.muted-active { background: var(--clr-danger); color: #fff; }

/* DANH SÁCH CHẾ ĐỘ XỬ LÝ (RADIO CARDS) */
.vmut-mode-cards { display: flex; flex-direction: column; gap: 12px; }
.vmut-mode-item {
    display: flex; align-items: flex-start; gap: 12px; padding: 14px;
    border: 2px solid #111; border-radius: 10px; background: #fff;
    cursor: pointer; transition: 0.12s; box-shadow: 3px 3px 0px #111;
}
.vmut-mode-item:hover { background: #f8f9fa; }
.vmut-mode-item.active {
    background: var(--clr-yellow); border-width: 3px;
    transform: translate(1px, 1px); box-shadow: 2px 2px 0px #111;
}
.vmut-mode-item input[type="radio"] {
    margin-top: 4px; transform: scale(1.3); accent-color: #111; cursor: pointer;
}
.vmut-mode-title { font-weight: 900; font-size: 0.98rem; color: #111; margin-bottom: 4px; }
.vmut-mode-desc { font-weight: 700; font-size: 0.84rem; color: #444; line-height: 1.35; }

/* HỘP TÙY CHỈNH PHỤ (RANGE & VOLUME) */
.vmut-adjust-box {
    background: #f1f3f5; border: 2px solid #111; border-radius: 12px; padding: 15px;
    box-shadow: inset 3px 3px 0px rgba(0,0,0,0.05); margin-bottom: 18px;
    display: flex; flex-direction: column; gap: 12px;
}
.vmut-control-label { font-size: 0.9rem; font-weight: 900; color: #222; }
.vmut-val-text {
    font-size: 0.95rem; font-weight: 900; color: #111;
    background: #fff; padding: 2px 8px; border-radius: 6px; border: 2px solid #111;
}

.vmut-time-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 480px) { .vmut-time-grid { grid-template-columns: 1fr; } }
.vmut-time-col span { font-size: 0.82rem; font-weight: 800; display: block; margin-bottom: 5px; }
.vmut-time-inp-group { display: flex; gap: 6px; }
.vmut-inp-num {
    width: 100%; padding: 8px 10px; font-family: 'Courier New', monospace;
    font-size: 1rem; font-weight: 900; border: 2px solid #111; border-radius: 8px; outline: none;
}
.vmut-btn-pick {
    padding: 8px 10px; font-size: 0.8rem; font-weight: 900; white-space: nowrap;
    background: var(--clr-orange); color: #111; border: 2px solid #111; border-radius: 8px;
    box-shadow: 2px 2px 0px #111; cursor: pointer;
}
.vmut-btn-pick:active { transform: translate(1px, 1px); box-shadow: none; }
.vmut-hint-note { font-size: 0.8rem; font-weight: 700; color: #333; }

.vmut-slider {
    -webkit-appearance: none; width: 100%; height: 10px;
    background: linear-gradient(to right, #a8dadc 0%, var(--clr-emerald) 100%);
    border: 2px solid #111; border-radius: 20px; outline: none;
}
.vmut-slider::-webkit-slider-thumb {
    -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%;
    background: var(--clr-slate); border: 2px solid #fff; cursor: pointer; box-shadow: 2px 2px 0px #111;
}

/* Nút Submit & Nút Phụ */
.vmut-btn-primary {
    width: 100%; padding: 18px; font-family: inherit; font-size: 1.1rem; font-weight: 900; text-transform: uppercase;
    background: var(--clr-emerald); border: var(--neo-border); border-radius: 12px; cursor: pointer;
    box-shadow: var(--neo-shadow); transition: 0.15s; color: #fff; margin-bottom: 12px;
}
.vmut-btn-primary:active:not(:disabled) { transform: translate(3px, 3px); box-shadow: var(--neo-shadow-active); }
.vmut-btn-primary:disabled { opacity: 0.6; cursor: not-allowed; filter: grayscale(1); box-shadow: none; background: #ccc; color: #111; }

.vmut-btn-secondary {
    width: 100%; padding: 13px; font-family: inherit; font-size: 0.92rem; font-weight: 900;
    background: #fff; color: var(--clr-slate); border: 2px solid #111; border-radius: 10px;
    box-shadow: 3px 3px 0px #111; cursor: pointer; transition: 0.12s;
}
.vmut-btn-secondary:hover { background: var(--clr-silver); }
.vmut-btn-secondary:active:not(:disabled) { transform: translate(2px, 2px); box-shadow: 1px 1px 0px #111; }
.vmut-btn-secondary:disabled { opacity: 0.5; cursor: not-allowed; }

/* Progress Box */
.vmut-status-box {
    margin-top: 20px; padding: 20px; background: #fff;
    border: var(--neo-border); border-radius: 12px; text-align: center; box-shadow: 3px 3px 0px #111;
}
.vmut-status-box h4 { margin: 0 0 10px 0; font-size: 1.05rem; font-weight: 900; color: #111; }
.vmut-progress-bar { width: 100%; height: 24px; background: #eee; border: 2px solid #111; border-radius: 50px; overflow: hidden; }
.vmut-progress-fill { width: 0%; height: 100%; background: var(--clr-emerald); transition: width 0.2s ease; border-right: 2px solid #111; }