/**
 * MOL-GOD Buffer Calculator — Frontend Styles
 * @package MolGod
 * @since   1.8.0
 */

.buffer-calculator-accordion {
    background: #fff;
    border: 1px solid #e8edf5;
    border-radius: 12px;
    margin: 14px 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .04);
}
.buffer-calculator-accordion > summary {
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 600;
    color: #1a1d2e;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
    user-select: none;
}
.buffer-calculator-accordion .badge.unique {
    margin-left: auto;
    font-size: 10px;
    background: #dbeafe;
    color: #1e40af;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 700;
}
.buffer-calculator-accordion .accordion-content {
    padding: 14px 20px;
    font-size: 13px;
}
.buffer-calculator-accordion .hidden { display: none; }

.buffer-intro p { margin: 0 0 14px; color: #475569; }
.buffer-calculator-accordion h4 {
    font-size: 13px;
    color: #1e293b;
    margin: 14px 0 8px;
}

/* Buffer selection grid */
.buffer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 10px;
}
.buffer-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: border-color .15s, box-shadow .15s;
}
.buffer-card:hover {
    border-color: #2563eb;
    box-shadow: 0 2px 6px rgba(37, 99, 235, .08);
}
.buffer-card.selected {
    border-color: #2563eb;
    background: #eff6ff;
    box-shadow: 0 2px 8px rgba(37, 99, 235, .15);
}
.buffer-card-header strong {
    font-size: 12px;
    color: #1e293b;
}
.buffer-card-body {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.buffer-prop {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
}
.buffer-prop .prop-label { color: #64748b; }
.buffer-prop .prop-value { color: #1e293b; font-weight: 600; }
.buffer-apps {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 2px;
}
.app-tag {
    font-size: 9px;
    background: #dbeafe;
    color: #1e40af;
    padding: 1px 5px;
    border-radius: 3px;
}
.btn-select-buffer {
    margin-top: 4px;
    padding: 6px 10px;
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
}
.btn-select-buffer:hover { background: #1d4ed8; }

/* Form */
.buffer-calculator-form {
    background: #f8fafc;
    border-radius: 8px;
    padding: 12px;
    margin-top: 12px;
}
.selected-buffer-display {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    background: #eff6ff;
    border-radius: 6px;
    font-size: 12px;
    margin-bottom: 10px;
}
.selected-buffer-display .selected-label { color: #64748b; }
.selected-buffer-display .selected-range {
    margin-left: auto;
    font-size: 10px;
    color: #1e40af;
}
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
}
.form-group label {
    display: block;
    font-size: 10px;
    color: #475569;
    margin-bottom: 3px;
    font-weight: 600;
}
.form-group input {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 12px;
}
.form-group .hint,
.form-group .ph-range-hint {
    display: block;
    font-size: 9px;
    color: #94a3b8;
    margin-top: 2px;
}
.btn-calculate {
    margin-top: 10px;
    padding: 8px 18px;
    background: #059669;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
}
.btn-calculate:hover { background: #047857; }

/* Results */
.buffer-results {
    margin-top: 16px;
    padding: 12px;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 8px;
}
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 8px;
    margin-bottom: 12px;
}
.summary-item {
    background: #fff;
    padding: 6px 10px;
    border-radius: 6px;
}
.summary-item .summary-label {
    display: block;
    font-size: 9px;
    color: #64748b;
}
.summary-item strong {
    font-size: 12px;
    color: #1e293b;
}
.components-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin-top: 8px;
}
.component-card {
    background: #fff;
    border-radius: 6px;
    padding: 10px;
    border-left: 3px solid #2563eb;
}
.component-card.base { border-left-color: #059669; }
.component-type {
    font-size: 9px;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.component-name {
    font-size: 12px;
    font-weight: 700;
    color: #1e293b;
    margin-top: 4px;
}
.component-formula {
    font-family: monospace;
    font-size: 11px;
    color: #475569;
}
.component-mass {
    margin: 6px 0 4px;
}
.component-mass .mass-value {
    font-size: 20px;
    font-weight: 800;
    color: #059669;
}
.component-mass .mass-unit {
    font-size: 12px;
    color: #64748b;
    margin-left: 3px;
}
.component-detail {
    font-size: 10px;
    color: #64748b;
    line-height: 1.5;
}

.recipe-procedure {
    margin-top: 14px;
}
.recipe-procedure h5 {
    font-size: 12px;
    color: #1e293b;
    margin: 0 0 6px;
}
.recipe-procedure ol {
    margin: 0;
    padding-left: 20px;
    font-size: 11px;
}
.recipe-procedure ol li { margin-bottom: 6px; }
.recipe-procedure .step-detail { color: #64748b; }

.calculation-details summary {
    cursor: pointer;
    font-size: 11px;
    color: #64748b;
    margin-top: 10px;
}
.calculation-details p {
    margin: 4px 0;
    font-size: 11px;
}
.calculation-details code {
    background: #f1f5f9;
    padding: 1px 4px;
    border-radius: 3px;
    font-size: 10px;
}

.recipe-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 12px;
}
.btn-action {
    padding: 5px 10px;
    background: #fff;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
}
.btn-action:hover {
    background: #f1f5f9;
    border-color: #94a3b8;
}

.buffer-history {
    margin-top: 12px;
}
.buffer-history summary {
    cursor: pointer;
    font-size: 11px;
    color: #64748b;
}

.buffer-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 10px 16px;
    border-radius: 6px;
    background: #059669;
    color: #fff;
    font-size: 12px;
    z-index: 9999;
    display: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
}
.buffer-notification.success { background: #059669; }
.buffer-notification.error { background: #dc2626; }

@media (max-width: 640px) {
    .buffer-grid { grid-template-columns: 1fr; }
    .components-grid { grid-template-columns: 1fr; }
}