/* ── Design tokens ──────────────────────────────────────────────────────────── */
:root {
    --sf-nav-width: 220px;
    --sf-nav-bg: #0052CC;
    --sf-nav-text: rgba(255, 255, 255, 0.9);
    --sf-nav-section: rgba(255, 255, 255, 0.55);
    --sf-nav-hover-bg: rgba(255, 255, 255, 0.12);
    --sf-nav-active-bg: rgba(255, 255, 255, 0.18);
    --sf-page-bg: #F4F5F7;
    --sf-card-bg: #ffffff;
    --sf-border: #DFE1E6;
    --sf-text: #172B4D;
    --sf-text-muted: #6B778C;
    --sf-primary: #0052CC;
    --sf-primary-hover: #0747A6;
    --sf-danger: #DE350B;
    --sf-success: #00875A;
    --sf-shadow: 0 1px 3px rgba(9, 30, 66, 0.12), 0 0 0 1px rgba(9, 30, 66, 0.06);
}

/* ── Base ───────────────────────────────────────────────────────────────────── */
html, body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    font-size: 14px;
    color: var(--sf-text);
    background: var(--sf-page-bg);
    height: 100%;
    margin: 0;
}

a, .btn-link { color: var(--sf-primary); }

h1, h2, h3, h4, h5 { color: var(--sf-text); font-weight: 600; }

/* ── Sidebar nav (global — NavLink components don't receive scoped CSS attrs) ── */
.sf-nav-brand {
    padding: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    flex-shrink: 0;
}

.sf-brand-link {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.sf-brand-logo {
    width: 28px;
    height: 28px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6875rem;
    font-weight: 800;
    color: white;
    flex-shrink: 0;
}

.sf-brand-name {
    font-size: 1rem;
    font-weight: 700;
    color: white;
    letter-spacing: -0.01em;
}

.sf-nav {
    padding: 8px 0 16px;
    overflow-y: auto;
    flex: 1;
}

.sf-nav-section-label {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: rgba(255, 255, 255, 0.55);
    padding: 16px 16px 6px;
    user-select: none;
}

.sf-nav-link {
    display: block;
    padding: 8px 16px;
    color: rgba(255, 255, 255, 0.88);
    text-decoration: none;
    font-size: 0.875rem;
    border-left: 3px solid transparent;
    transition: background 0.1s;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.4;
}

.sf-nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
}

.sf-nav-link.active {
    background: rgba(255, 255, 255, 0.18);
    border-left-color: white;
    color: white;
    font-weight: 600;
}

/* ── Page header ─────────────────────────────────────────────────────────────── */
.sf-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.sf-page-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--sf-text);
    margin: 0;
}

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.btn-primary {
    background-color: var(--sf-primary);
    border-color: var(--sf-primary);
    font-weight: 500;
    font-size: 0.875rem;
}

.btn-primary:hover, .btn-primary:focus {
    background-color: var(--sf-primary-hover);
    border-color: var(--sf-primary-hover);
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus,
.form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 2px rgba(0, 82, 204, 0.25);
}

/* ── Cards ──────────────────────────────────────────────────────────────────── */
.sf-card {
    background: var(--sf-card-bg);
    border-radius: 4px;
    box-shadow: var(--sf-shadow);
    border: none;
    overflow: hidden;
}

/* ── Tables ─────────────────────────────────────────────────────────────────── */
.sf-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--sf-card-bg);
}

.sf-table thead th {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--sf-text-muted);
    padding: 10px 16px;
    border-bottom: 2px solid var(--sf-border);
    white-space: nowrap;
    background: #FAFBFC;
}

.sf-table tbody td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--sf-border);
    color: var(--sf-text);
    font-size: 0.875rem;
    vertical-align: middle;
}

.sf-table tbody tr:last-child td { border-bottom: none; }
.sf-table tbody tr:hover td { background: #F4F5F7; }
.sf-table td.col-actions { text-align: right; white-space: nowrap; }

/* ── Alerts ──────────────────────────────────────────────────────────────────── */
.sf-alert-error {
    background: #FFEBE6;
    border: 1px solid #FF8F73;
    border-radius: 4px;
    color: #BF2600;
    padding: 10px 14px;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 16px;
}

/* ── Alerts ──────────────────────────────────────────────────────────────────── */
.sf-alert-success {
    background: #E3FCEF;
    border: 1px solid #79F2C0;
    border-radius: 4px;
    color: #006644;
    padding: 10px 14px;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 16px;
}

/* ── Badges ──────────────────────────────────────────────────────────────────── */
.sf-badge {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 3px;
}

.sf-badge-yes { background: #E3FCEF; color: #006644; }
.sf-badge-no  { background: #F4F5F7; color: #6B778C; }

/* ── Form section headers ────────────────────────────────────────────────────── */
.sf-form-section-header {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #6B778C;
    border-bottom: 1px solid #DFE1E6;
    padding-bottom: 6px;
    margin-bottom: 14px;
}

/* ── Drawer tabs ─────────────────────────────────────────────────────────────── */
.sf-tab-bar {
    display: flex;
    border-bottom: 2px solid #DFE1E6;
    margin-bottom: 20px;
}
.sf-tab {
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    padding: 8px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    color: #6B778C;
    cursor: pointer;
}
.sf-tab:hover { color: #172B4D; }
.sf-tab.active { color: #0052CC; border-bottom-color: #0052CC; }
.sf-tab-content { padding-top: 4px; }

/* ── Collapsible sections ────────────────────────────────────────────────────── */
.sf-collapsible-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    background: none;
    border: none;
    border-bottom: 1px solid #DFE1E6;
    padding: 0 0 6px 0;
    margin-bottom: 14px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #6B778C;
    cursor: pointer;
    text-align: left;
}
.sf-collapsible-header:hover { color: #172B4D; }
.sf-collapsible-caret {
    font-size: 1rem;
    line-height: 1;
    transform: rotate(90deg);
    transition: transform 0.15s ease;
    display: inline-block;
}
.sf-collapsible-caret.open { transform: rotate(270deg); }
.sf-collapsible-body { margin-bottom: 4px; }

/* ── Contact cards (customer admin) ─────────────────────────────────────────── */
.sf-contact-card {
    border: 1px solid #DFE1E6;
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 12px;
    background: #FAFBFC;
}
.sf-contact-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 0.8125rem;
    margin-bottom: 10px;
}

/* ── Multi-select checklist ──────────────────────────────────────────────────── */
.sf-multiselect-list {
    border: 1px solid #DFE1E6;
    border-radius: 4px;
    max-height: 180px;
    overflow-y: auto;
    padding: 8px 12px;
    background: #fff;
}
.sf-multiselect-list .form-check {
    margin-bottom: 4px;
}
.sf-multiselect-count {
    font-size: 0.75rem;
    font-weight: 400;
    color: #6B778C;
}

/* ── Right Drawer ────────────────────────────────────────────────────────────── */
.drawer-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(9, 30, 66, 0.54);
    z-index: 1040;
    animation: sfFadeIn 0.15s ease;
}

.drawer-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 480px;
    max-width: 100vw;
    background: #fff;
    z-index: 1050;
    display: flex;
    flex-direction: column;
    box-shadow: -4px 0 24px rgba(9, 30, 66, 0.22);
    animation: sfSlideIn 0.2s ease;
}

.drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--sf-border);
    flex-shrink: 0;
}

.drawer-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--sf-text);
}

.drawer-close {
    background: none;
    border: none;
    font-size: 1.1rem;
    color: var(--sf-text-muted);
    cursor: pointer;
    padding: 4px 8px;
    line-height: 1;
    border-radius: 3px;
    transition: background 0.1s;
}

.drawer-close:hover { background: var(--sf-border); color: var(--sf-text); }

.drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.drawer-actions {
    display: flex;
    gap: 8px;
    padding-top: 20px;
    margin-top: 8px;
    border-top: 1px solid var(--sf-border);
}

@keyframes sfFadeIn  { from { opacity: 0 } to { opacity: 1 } }
@keyframes sfSlideIn { from { transform: translateX(100%) } to { transform: translateX(0) } }

/* ── Form fields inside drawer ───────────────────────────────────────────────── */
.drawer-body .form-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--sf-text-muted);
    margin-bottom: 4px;
}

.drawer-body .form-control,
.drawer-body .form-select {
    border-color: var(--sf-border);
    border-radius: 3px;
    font-size: 0.875rem;
    color: var(--sf-text);
}

.drawer-body .form-control:focus,
.drawer-body .form-select:focus {
    border-color: var(--sf-primary);
    box-shadow: 0 0 0 2px rgba(0, 82, 204, 0.2);
}

/* ── Inner tables in drawer (plate items, guide items, etc.) ─────────────────── */
.drawer-body .inner-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8125rem;
    margin-top: 4px;
}

.drawer-body .inner-table th {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--sf-text-muted);
    padding: 6px 8px;
    border-bottom: 1px solid var(--sf-border);
    background: #FAFBFC;
}

.drawer-body .inner-table td {
    padding: 5px 8px;
    border-bottom: 1px solid var(--sf-border);
    vertical-align: middle;
}

.drawer-body .inner-table .form-control,
.drawer-body .inner-table .form-select { padding: 3px 8px; }

/* ── Pagination ──────────────────────────────────────────────────────────────── */
.sf-pagination {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 16px;
    border-top: 1px solid var(--sf-border);
    background: #FAFBFC;
    flex-wrap: wrap;
}

.sf-pagination-info {
    font-size: 0.8125rem;
    color: var(--sf-text-muted);
    flex: 1;
    white-space: nowrap;
}

.sf-pagination-controls {
    display: flex;
    align-items: center;
    gap: 2px;
}

.sf-page-btn {
    min-width: 32px;
    height: 32px;
    border: 1px solid var(--sf-border);
    background: white;
    border-radius: 3px;
    font-size: 0.8125rem;
    cursor: pointer;
    color: var(--sf-text);
    padding: 0 8px;
    line-height: 1;
    transition: background 0.1s;
}

.sf-page-btn:hover:not(:disabled):not(.active) { background: #F4F5F7; }

.sf-page-btn.active {
    background: var(--sf-primary);
    border-color: var(--sf-primary);
    color: white;
    font-weight: 600;
}

.sf-page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.sf-page-ellipsis {
    padding: 0 4px;
    color: var(--sf-text-muted);
    font-size: 0.875rem;
}

.sf-page-size-select {
    border: 1px solid var(--sf-border);
    border-radius: 3px;
    padding: 4px 8px;
    font-size: 0.8125rem;
    color: var(--sf-text);
    background: white;
    cursor: pointer;
}

/* ── Filter bar ──────────────────────────────────────────────────────────────── */
.sf-filter-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.sf-filter-input {
    flex: 1;
    min-width: 180px;
    font-size: 0.875rem;
    height: 34px;
    border-color: var(--sf-border);
    border-radius: 3px;
    color: var(--sf-text);
}

.sf-filter-select {
    width: auto;
    min-width: 130px;
    font-size: 0.875rem;
    height: 34px;
    border-color: var(--sf-border);
    border-radius: 3px;
    color: var(--sf-text);
    background: white;
    cursor: pointer;
    padding: 0 8px;
}

/* ── State placeholders ──────────────────────────────────────────────────────── */
.sf-loading, .sf-empty {
    color: var(--sf-text-muted);
    text-align: center;
    padding: 40px 16px;
    font-size: 0.875rem;
}

/* ── Validation ──────────────────────────────────────────────────────────────── */
.valid.modified:not([type=checkbox]) { outline: 1px solid var(--sf-success); }
.invalid                             { outline: 1px solid var(--sf-danger);  }
.validation-message                  { color: var(--sf-danger); font-size: 0.8125rem; margin-top: 2px; }

/* ── Blazor infrastructure ───────────────────────────────────────────────────── */
#blazor-error-ui {
    color-scheme: light only;
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 2000;
}

#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 0.75rem; top: 0.5rem; }
.blazor-error-boundary { padding: 1rem 1rem 1rem 3.7rem; color: white; background: #b32121; border-radius: 4px; }
.blazor-error-boundary::after { content: "An error has occurred." }

/* ── Test Calculator — form utilities ───────────────────────────────────────── */
.sf-form-group { display: flex; flex-direction: column; gap: 4px; margin-bottom: 16px; }
.sf-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.sf-label { font-size: 0.8125rem; font-weight: 600; color: var(--sf-text-muted); }
.sf-label-optional { font-weight: 400; font-size: 0.75rem; }
.sf-input, .sf-select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--sf-border);
    border-radius: 4px;
    font-size: 0.875rem;
    color: var(--sf-text);
    background: #fff;
    transition: border-color 0.15s;
}
.sf-input:focus, .sf-select:focus { outline: none; border-color: var(--sf-primary); box-shadow: 0 0 0 3px rgba(0,82,204,0.12); }
.sf-input:disabled, .sf-select:disabled { background: var(--sf-page-bg); color: var(--sf-text-muted); cursor: not-allowed; }

.sf-calc-radios-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 16px;
}
@media (max-width: 700px) {
    .sf-calc-radios-row { grid-template-columns: 1fr 1fr; }
    .sf-form-row { grid-template-columns: 1fr; }
}
.sf-calc-radio-group { display: flex; flex-direction: column; gap: 4px; }
.sf-radio-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8125rem;
    color: var(--sf-text);
    cursor: pointer;
    user-select: none;
}
.sf-radio-label input[type="radio"] { accent-color: var(--sf-primary); cursor: pointer; }

.sf-form-actions { display: flex; gap: 12px; align-items: center; margin-top: 4px; }
.sf-btn {
    padding: 8px 20px;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background 0.15s, opacity 0.15s;
}
.sf-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.sf-btn-primary { background: var(--sf-primary); color: #fff; }
.sf-btn-primary:hover:not(:disabled) { background: #0747A6; }
.sf-btn-ghost { background: transparent; color: var(--sf-primary); border: 1px solid var(--sf-border); }
.sf-btn-ghost:hover:not(:disabled) { background: var(--sf-page-bg); }
.sf-alert { padding: 10px 14px; border-radius: 4px; font-size: 0.875rem; margin-bottom: 16px; }
.sf-alert-error { background: #FFF5F5; border: 1px solid #FED7D7; color: #C53030; }
.sf-empty-state { padding: 24px; text-align: center; color: var(--sf-text-muted); font-size: 0.9rem; }

/* ── Test Calculator ─────────────────────────────────────────────────────────── */
.sf-calc-layout {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sf-calc-form-panel {
    background: var(--sf-card-bg);
    border-radius: 6px;
    box-shadow: var(--sf-shadow);
    padding: 24px;
    max-width: 780px;
}

.sf-calc-results-panel {
    background: var(--sf-card-bg);
    border-radius: 6px;
    box-shadow: var(--sf-shadow);
    padding: 24px;
}

.sf-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--sf-text-muted);
    margin-bottom: 16px;
}

.sf-calc-tubes { display: flex; flex-direction: column; gap: 16px; }

.sf-calc-tube-card {
    border: 1px solid var(--sf-border);
    border-radius: 6px;
    overflow: hidden;
}
.sf-calc-tube-selected { border-color: var(--sf-success); }

.sf-calc-tube-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--sf-page-bg);
    border-bottom: 1px solid var(--sf-border);
}
.sf-calc-tube-selected .sf-calc-tube-header { background: #E3FCEF; }

.sf-calc-tube-size { font-size: 1rem; font-weight: 600; color: var(--sf-text); }
.sf-calc-tube-cost { margin-left: auto; font-weight: 600; color: var(--sf-primary); }

.sf-calc-tube-body { padding: 16px; }

.sf-calc-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 12px;
}

@media (max-width: 900px) {
    .sf-calc-cols { grid-template-columns: 1fr; }
}

.sf-calc-col {}
.sf-calc-section-label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--sf-text-muted);
    margin-bottom: 8px;
}

.sf-calc-dl {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3px 12px;
    font-size: 0.8125rem;
    margin: 0;
}
.sf-calc-dl dt { color: var(--sf-text-muted); white-space: nowrap; }
.sf-calc-dl dd { margin: 0; color: var(--sf-text); font-weight: 500; }

.sf-calc-dl-inline { gap: 4px 16px; }

.sf-calc-total {
    margin-top: 12px;
    padding-top: 8px;
    border-top: 1px solid var(--sf-border);
    font-weight: 700;
    font-size: 0.9375rem;
    color: var(--sf-primary);
}

.sf-value-pass { color: var(--sf-success); }
.sf-value-fail { color: var(--sf-danger); }

/* Audit log */
.sf-calc-audit { margin-top: 24px; }
.sf-audit-body {
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.8rem;
    background: #1A1F2E;
    color: #CBD5E0;
    border-radius: 0 0 4px 4px;
    padding: 12px 16px;
    max-height: 400px;
    overflow-y: auto;
}
.sf-audit-line { padding: 1px 0; line-height: 1.5; }
.sf-audit-group { color: #90CDF4; font-weight: bold; margin-top: 4px; }
.sf-audit-ok    { color: #68D391; }
.sf-audit-warn  { color: #F6E05E; }
.sf-audit-error { color: #FC8181; }

/* Badges */
.sf-badge { display: inline-block; font-size: 0.7rem; font-weight: 600; padding: 2px 8px; border-radius: 10px; text-transform: uppercase; letter-spacing: 0.04em; }
.sf-badge-success { background: #E3FCEF; color: #006644; }
.sf-badge-warning { background: #FFFAE6; color: #974F0C; }

/* ── Checkbox list (multi-select replacement) ───────────────────────────────── */
.sf-checkbox-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 160px;
    overflow-y: auto;
    border: 1px solid var(--sf-border);
    border-radius: 4px;
    padding: 8px 10px;
    background: #fff;
}
.sf-checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--sf-text);
    cursor: pointer;
    user-select: none;
}
.sf-checkbox-item input[type="checkbox"] { accent-color: var(--sf-primary); cursor: pointer; }

/* ── Wide drawer variant ─────────────────────────────────────────────────────── */
.drawer-panel-wide { width: 780px; }

/* ── Motor Platform admin sections ──────────────────────────────────────────── */
.mp-section {
    border: 1px solid var(--sf-border);
    border-radius: 6px;
    padding: 14px 16px;
    margin-bottom: 16px;
}
.mp-section-title {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--sf-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}
.mp-section-help {
    font-size: 0.75rem;
    color: var(--sf-text-muted);
    margin-bottom: 10px;
}