/* Container chính */
.cl-container {
    max-width: 900px;
    margin: 30px auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    color: #333;
}

/* --- PHẦN TÌM KIẾM --- */
.cl-search-box {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

#cl-input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    outline: none;
    transition: border 0.3s;
}

#cl-input:focus {
    border-color: #0073aa;
    box-shadow: 0 0 0 2px rgba(0,115,170,0.1);
}

#cl-btn {
    padding: 0 30px;
    background-color: #0073aa;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    text-transform: uppercase;
    transition: background 0.3s;
}

#cl-btn:hover {
    background-color: #005177;
}

#cl-loading {
    text-align: center;
    color: #666;
    font-style: italic;
    margin-bottom: 20px;
}

/* --- THẺ KẾT QUẢ (CARD) --- */
.cl-chem-card {
    border: 1px solid #e2e4e7;
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 25px;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.cl-chem-card h3 {
    margin-top: 0;
    margin-bottom: 5px;
    color: #0073aa;
    font-size: 20px;
    border-bottom: 1px solid #eee;
    padding-bottom: 12px;
}

.cl-formula {
    color: #777;
    font-weight: normal;
    font-size: 0.85em;
    margin-left: 5px;
}

.cl-chem-en {
    font-style: italic;
    color: #888;
    margin-bottom: 25px;
    font-size: 14px;
    margin-top: 0;
}

/* --- LƯỚI KẾT QUẢ --- */
.cl-matrix {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.cl-group {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 6px;
    border: 1px solid #eee;
}

.cl-group h4 {
    margin: 0 0 15px 0;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #555;
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 8px;
    font-weight: 700;
}

.cl-group ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* --- CĂN CHỈNH DÒNG --- */
.cl-group li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px dashed #e0e0e0;
    font-size: 14px;
}

.cl-group li:last-child {
    border-bottom: none;
}

.mat-name {
    font-weight: 500;
    color: #333;
}

/* --- CĂN CHỈNH ICON VÀ CHỮ --- */
.mat-rating {
    display: inline-flex;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    font-weight: bold;
    line-height: 1;
    width: 45px;           
    min-width: 45px;       
}

.mat-rating .cl-icon {
    display: inline-block;
    vertical-align: middle;
    width: 20px;
    text-align: center;
    margin-top: -2px;
}

/* Màu sắc đánh giá */
.cl-good .mat-rating { color: #28a745; }
.cl-fair .mat-rating { color: #d39e00; }
.cl-bad .mat-rating  { color: #dc3545; }
.cl-diff .mat-rating { color: #17a2b8; }

/* Ghi chú & Lỗi */
.cl-note {
    margin-top: 20px;
    padding: 12px 15px;
    background-color: #fff8e1;
    border-left: 4px solid #ffc107;
    color: #856404;
    font-size: 14px;
    border-radius: 0 4px 4px 0;
}

.cl-error {
    color: #dc3545;
    font-weight: bold;
    text-align: center;
    padding: 20px;
    background: #fff5f5;
    border: 1px dashed #dc3545;
    border-radius: 4px;
    margin-bottom: 20px;
}

/* --- PHẦN CHÚ THÍCH (LEGEND) --- */
.cl-legend {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    margin-top: 30px;
    border: 1px solid #e2e4e7;
    font-size: 13px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.02);
}

.cl-legend-header {
    font-weight: 700;
    margin-bottom: 12px;
    color: #333;
    text-transform: uppercase;
    font-size: 12px;
}

.cl-legend-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.cl-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #555;
    background: #f8f9fa;
    padding: 5px 10px;
    border-radius: 20px;
    border: 1px solid #eee;
}

/* --- PHẦN HƯỚNG DẪN TRA CỨU (MỚI) --- */
.cl-guide {
    background-color: #f0f7fb;
    border: 1px solid #cce5ff;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 25px;
}

.cl-guide-title {
    margin: 0 0 15px 0;
    font-size: 16px;
    color: #005c87;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cl-guide-steps {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cl-step {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    color: #444;
    line-height: 1.5;
}

.cl-step p {
    margin: 0;
}

.cl-step-num {
    background-color: #0073aa;
    color: #fff;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    flex-shrink: 0;
}

@media (max-width: 600px) {
    .cl-guide {
        padding: 15px;
    }
    .cl-step {
        font-size: 13px;
    }
}