.container {
    max-width: 1000px;
    margin: 40px auto;
    padding: 24px;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

h1, h2 {
    margin-bottom: 16px;
    font-weight: 600;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

label {
    font-size: 0.9rem;
    color: #444;
    display: block;
    margin-bottom: 6px;
}

input[type="number"], input[type="text"] {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
}

th, td {
    border-bottom: 1px solid #e0e0e0;
    padding: 10px;
    text-align: left;
}

th {
    background-color: #f7f7f7;
    font-weight: 600;
}

.actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

button.danger {
    background-color: #dc3545;
    color: white;
    border: none;
}

button.danger:hover {
    background-color: #b52a37;
}

button {
    padding: 10px 18px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-weight: 500;
}

    button.primary {
        background-color: #1976d2;
        color: white;
    }

    button.secondary {
        background-color: #e0e0e0;
    }

    table button.secondary {
        padding: 6px 10px;
        font-size: 0.9rem;
    }

.result {
    margin-top: 24px;
    padding: 16px;
    background: #f0f7ff;
    border-left: 4px solid #1976d2;
    font-size: 1.1rem;
}

.action-buttons {
    margin-bottom: 25px;
}

.nav-icon {
    display: inline-block;
    width: 1.25rem;
    margin-right: 0.75rem;
    text-align: center;
}

.report-container {
    max-width: 980px;
    margin: 5px auto 20px auto; /* reduced top gap */
    padding: 10px 20px;
}

.report-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
}

.report-top-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 12px;
}

.report-container .panel {
    border: 1px solid #cfcfcf;
    padding: 10px 12px;
    margin-bottom: 12px;
    background: white;
}

.report-container h3 {
    font-size: 15px;
    margin-bottom: 8px;
}

.report-container p {
    font-size: 12px;
    margin: 4px 0;
}

.report-container .heatloss-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

    .report-container .heatloss-table th,
    .report-container .heatloss-table td {
        /* border: 1px solid #ccc; */
        border: none;
        padding: 5px 6px;
        text-align: center;
    }

@media (max-width: 900px) {
    .report-top-grid {
        grid-template-columns: 1fr;
    }
}

.refractory-page {
    max-width: 1600px;
    margin: 10px auto;
    padding: 10px 14px;
    height: calc(100vh - 80px);
}

.refractory-toolbar h1 {
    font-size: 24px;
    margin-bottom: 10px;
}

.refractory-layout {
    display: grid;
    grid-template-columns: 58% 42%;
    gap: 16px;
}

.refractory-list-pane,

.refractory-detail-pane {
    min-width: 0;
    position: sticky;
    top: 70px;
    align-self: flex-start;
}

/* .refractory-detail-pane {
    min-width: 0;
} */

.panel {
    background: white;
    border: 1px solid #d5d5d5;
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 12px;
}

    .panel h3 {
        font-size: 16px;
        margin-bottom: 10px;
    }

.filter-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 10px;
    margin-bottom: 10px;
}

    .filter-row input,
    .filter-row select,
    .detail-grid input {
        width: 100%;
        padding: 6px 8px;
        font-size: 13px;
    }

.material-list-table-wrap {
    height: 720px;
    overflow-y: auto;
    border: 1px solid #ddd;
}

.material-list-table,
.conductivity-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

    .material-list-table th,
    .material-list-table td,
    .conductivity-table th,
    .conductivity-table td {
        /* border: 1px solid #ddd; */
        border: none;
        /* padding: 6px 8px; */
        padding: 8px 10px;
    }

    .material-list-table tbody tr {
        border-bottom: 1px solid #eee;
    }

    .material-list-table thead th,
    .conductivity-table thead th {
        position: sticky;
        top: 0;
        background:#f7f7f7;
        z-index: 1;
    }

    .material-list-table tbody tr {
        cursor: pointer;
    }

        .material-list-table tbody tr:hover {
            /* background: #f7fbff; */
            background: #f5f7fa;
        }

.selected-row {
    background: #eaf4ff;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 14px;
}

.field-row label {
    display: block;
    font-size: 12px;
    margin-bottom: 4px;
    color: #444;
}

.field-row.full {
    grid-column: 1 / -1;
}

.action-panel {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

@media (max-width: 1100px) {
    .refractory-layout {
        grid-template-columns: 1fr;
    }

    .filter-row,
    .detail-grid {
        grid-template-columns: 1fr;
    }
}

.nav-icon {
    display: inline-block;
    width: 1.25rem;
    margin-right: 0.75rem;
    text-align: center;
}

.nav-divider {
    border-color: rgba(255,255,255,0.2);
    margin: 10px 0;
}

.form-grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2px 20px;
}

.surface-area-row {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 14px;
    margin-bottom: 14px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0;
    font-size: 0.75rem;
    white-space: nowrap;
}

.surface-area-row input[type="number"] {
    width: 168px;
    height: 30px;
    text-align: right;
}

.unit-label {
    font-size: 0.75rem;
    white-space: nowrap;
}

.plot-scale-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.plot-scale-popup {
    background: white;
    border: 1px solid #ccc;
    border-radius: 8px;
    padding: 20px;
    min-width: 520px;
}

.plot-scale-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 24px;
}

.plot-scale-popup h4 {
    margin-top: 0;
    margin-bottom: 16px;
}

.no-border-panel {
    border: none !important;
    box-shadow: none !important;
    background: transparent !important;
}