/* Khai báo biến cục bộ */
.bac-neo-wrapper {
    --bg-white: #ffffff;
    --border-ink: 3px solid #111111;
    --shadow-solid: 5px 5px 0px #111111;
    --shadow-push: 2px 2px 0px #111111;
    --clr-warning-bg: #ffbe0b; 
    --clr-safe: #06d6a0; 
    
    max-width: 750px;
    margin: 0 auto;
    font-family: system-ui, -apple-system, sans-serif;
    color: #111111;
    background: #f8f9fa;
    padding: 20px;
    border: var(--border-ink);
    border-radius: 16px;
    box-shadow: 8px 8px 0px #111;
}

.bac-neo-wrapper * { box-sizing: border-box; }

/* ... (Giữ nguyên các CSS header, alert, input cơ bản từ bản trước) ... */
.bac-neo-header { background: var(--clr-warning-bg); border: var(--border-ink); box-shadow: var(--shadow-solid); padding: 20px; border-radius: 12px; text-align: center; margin-bottom: 20px; }
.bac-neo-header h2 { margin: 0 0 10px 0; font-size: 1.8rem; font-weight: 900; }
.bac-legal-alert { background: #ff4d4d; color: #fff; border: var(--border-ink); padding: 12px 15px; border-radius: 8px; font-size: 0.95rem; display: flex; gap: 10px; align-items: center; margin-bottom: 25px; box-shadow: 4px 4px 0px #111; }
.bac-neo-form { display: flex; flex-direction: column; gap: 20px; }
.bac-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.bac-group { display: flex; flex-direction: column; gap: 8px; }
.bac-group label { font-weight: 800; font-size: 1.05rem; }
.bac-neo-wrapper input[type="number"], .bac-neo-wrapper select { width: 100%; padding: 14px; font-size: 1.1rem; font-weight: 700; border: var(--border-ink); border-radius: 12px; background: var(--bg-white); box-shadow: 4px 4px 0px #111; outline: none; }
.bac-neo-wrapper input[readonly] { background: #e9ecef; cursor: not-allowed; }
.bac-radio-grid { display: flex; gap: 15px; height: 100%;}
.bac-radio-grid .radio-neo { flex: 1; cursor: pointer; }
.bac-neo-wrapper input[type="radio"] { display: none; }
.bac-neo-wrapper .neo-content { display: flex; align-items: center; justify-content: center; height: 100%; padding: 14px; font-weight: 800; border: var(--border-ink); border-radius: 12px; background: var(--bg-white); box-shadow: 4px 4px 0px #111; transition: all 0.1s; }
.radio-male input:checked + .neo-content { background: #bde0fe; box-shadow: var(--shadow-push); transform: translate(2px, 2px); }
.radio-female input:checked + .neo-content { background: #ffc8dd; box-shadow: var(--shadow-push); transform: translate(2px, 2px); }

/* Quick Add Buttons */
.bac-quick-add {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 5px;
}
.quick-btn {
    background: #fff;
    border: 2px solid #111;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 2px 2px 0px #111;
    transition: all 0.1s;
}
.quick-btn:hover { background: #e9ecef; }
.quick-btn:active { box-shadow: 0px 0px 0px #111; transform: translate(2px, 2px); }
.btn-clear { background: #ffccd5; }

/* Nút Submit */
.bac-neo-btn { padding: 18px; font-size: 1.2rem; font-weight: 900; background: #111; color: #fff; border: var(--border-ink); border-radius: 12px; box-shadow: 5px 5px 0px var(--clr-warning-bg); cursor: pointer; text-transform: uppercase; margin-top: 10px; }
.bac-neo-btn:active { box-shadow: 2px 2px 0px var(--clr-warning-bg); transform: translate(3px, 3px); }

/* Result Box */
.bac-neo-result { margin-top: 30px; padding-top: 30px; border-top: 4px dashed #111; }
.bac-neo-result.active { display: block !important; animation: bacPop 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards; }
.bac-highlight { background: #fff; border: var(--border-ink); box-shadow: var(--shadow-solid); border-radius: 16px; padding: 25px 20px; text-align: center; margin-bottom: 25px; }
.bac-total { font-size: 4rem; font-weight: 900; margin: 10px 0; color: #111; line-height: 1;}
.bac-status-badge { display: inline-block; padding: 8px 20px; border-radius: 30px; font-weight: 900; border: 3px solid #111; }

/* Timeline Đồng hồ thực tế */
.bac-time-box { background: #fff; border: var(--border-ink); box-shadow: var(--shadow-solid); border-radius: 12px; padding: 20px; margin-bottom: 20px; }
.bac-time-box h4 { margin: 0 0 15px 0; font-size: 1.05rem; }
.time-timeline { display: flex; flex-direction: column; gap: 15px; }
.time-step { display: flex; flex-direction: column; padding-bottom: 15px; border-bottom: 2px dashed #ddd; }
.time-step:last-child { border-bottom: none; padding-bottom: 0; }
.time-label { font-size: 0.9rem; font-weight: 600; color: #555; }
.time-value { font-size: 1.6rem; font-weight: 900; color: #111; margin: 2px 0; }
.step-safe { background: #d8f3dc; padding: 15px; border-radius: 8px; border: 2px solid #111; box-shadow: 3px 3px 0px #111; border-bottom: 2px solid #111;}
.step-safe .time-value { color: #081c15; font-size: 1.8rem;}

.bac-note { background: #fff3cd; border: 2px solid #111; border-radius: 8px; padding: 12px; font-size: 0.85rem; line-height: 1.5; }

@keyframes bacPop { 0% { opacity: 0; transform: translateY(20px); } 100% { opacity: 1; transform: translateY(0); } }

@media (max-width: 600px) {
    .bac-form-grid { grid-template-columns: 1fr; gap: 15px; }
    .bac-total { font-size: 3.5rem; }
}