/* Style CSS - Audio Joiner */
.ajoin-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);
}
.ajoin-soft-wrapper * { box-sizing: border-box; }

.ajoin-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);
}
.ajoin-soft-header h2 { margin: 0 0 10px 0; font-size: 1.8rem; font-weight: 900; text-transform: uppercase; color: var(--clr-yellow); }
.ajoin-soft-header p { margin: 0; font-weight: 700; font-size: 0.95rem; }

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

.ajoin-main-layout { display: flex; flex-direction: column; gap: 25px; }
.ajoin-col { flex: 1; min-width: 0; }
@media (min-width: 768px) { .ajoin-main-layout { flex-direction: row; align-items: flex-start; } }

.ajoin-group { margin-bottom: 20px; }
.ajoin-label { font-weight: 900; font-size: 1rem; margin-bottom: 10px; display: block; color: var(--clr-slate); }

/* Khung Upload Multiple */
.ajoin-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;
}
.ajoin-upload-box:hover, .ajoin-upload-box.dragover { filter: brightness(0.95); transform: translateY(-2px); }
.ajoin-icon { font-size: 2.3rem; line-height: 1; }
.ajoin-filename { font-weight: 900; font-size: 1rem; word-break: break-all; }
.ajoin-upload-sub { font-size: 0.85rem; font-weight: 700; opacity: 0.9; }

/* Danh sách file đã chọn */
.ajoin-track-list { display: flex; flex-direction: column; gap: 10px; margin-top: 15px; }
.ajoin-track-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 12px; background: #fff; border: 2px solid #111; border-radius: 8px;
    box-shadow: 2px 2px 0px #111; gap: 10px;
}
.ajoin-track-info { display: flex; align-items: center; gap: 10px; flex: 1; overflow: hidden; }
.ajoin-track-index { background: var(--clr-slate); color: #fff; font-weight: 900; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; border-radius: 50%; font-size: 0.8rem; }
.ajoin-track-name { font-weight: 700; font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ajoin-track-actions { display: flex; gap: 5px; }
.ajoin-btn-action {
    background: #f1f3f5; border: 2px solid #111; border-radius: 6px; padding: 4px 8px;
    font-size: 0.9rem; font-weight: 900; cursor: pointer; transition: 0.1s;
}
.ajoin-btn-action:hover { background: var(--clr-yellow); }
.ajoin-btn-action.del:hover { background: var(--clr-danger); color: #fff; }
.ajoin-btn-action:disabled { opacity: 0.4; cursor: not-allowed; }

/* Tùy chỉnh (Radio Cards) */
.ajoin-mode-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ajoin-mode-item {
    display: flex; align-items: center; gap: 8px; padding: 12px;
    border: 2px solid #111; border-radius: 10px; background: #fff;
    cursor: pointer; transition: 0.12s; box-shadow: 3px 3px 0px #111;
}
.ajoin-mode-item:hover { background: #f8f9fa; }
.ajoin-mode-item.active { background: var(--clr-yellow); border-width: 3px; transform: translate(1px, 1px); box-shadow: 2px 2px 0px #111; }
.ajoin-mode-item input[type="radio"] { transform: scale(1.2); accent-color: #111; cursor: pointer; }
.ajoin-mode-title { font-weight: 900; font-size: 0.9rem; color: #111; }

.ajoin-select {
    width: 100%; padding: 12px; font-family: inherit; font-size: 1rem; font-weight: 800;
    border: 2px solid #111; border-radius: 8px; outline: none; background: #fff;
    box-shadow: 3px 3px 0px #111; cursor: pointer;
}

/* Nút Submit & Progress */
.ajoin-btn-primary {
    width: 100%; padding: 18px; font-family: inherit; font-size: 1.1rem; font-weight: 900; text-transform: uppercase;
    background: var(--clr-orange); border: var(--neo-border); border-radius: 12px; cursor: pointer;
    box-shadow: var(--neo-shadow); transition: 0.15s; color: #111; margin-top: 15px;
}
.ajoin-btn-primary:active:not(:disabled) { transform: translate(3px, 3px); box-shadow: var(--neo-shadow-active); }
.ajoin-btn-primary:disabled { opacity: 0.6; cursor: not-allowed; filter: grayscale(1); box-shadow: none; background: #ccc; }

.ajoin-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;
}
.ajoin-status-box h4 { margin: 0 0 10px 0; font-size: 1.05rem; font-weight: 900; color: #111; }
.ajoin-progress-bar { width: 100%; height: 24px; background: #eee; border: 2px solid #111; border-radius: 50px; overflow: hidden; }
.ajoin-progress-fill { width: 0%; height: 100%; background: var(--clr-emerald); transition: width 0.2s ease; border-right: 2px solid #111; }