:root {
    /* Sense dark mode (default) */
    --bg: #021940;
    --fg: rgb(255, 255, 255);
    --accent: #fc9077;
    --secondary: #6690e1;
    --tertiary: #66b4c4;
    --border: rgba(255, 255, 255, 0.3);
    --hover-bg: rgba(255, 255, 255, 0.1);
    --selected-bg: rgba(102, 144, 225, 0.2);
    /* Waveform line colors */
    --line-voltage-1: #fc9077;
    --line-voltage-2: #f5d76e;
    --line-amperage-1: #6690e1;
    --line-amperage-2: #66b4c4;
    /* Link colors */
    --link: #5cb8ff;
    --link-visited: #b8d4ff;
}

[data-theme="light"] {
    --bg: #ffffff;
    --fg: #021940;
    --accent: #f9461c;
    --secondary: #0046cd;
    --tertiary: #00829d;
    --border: rgba(2, 25, 64, 0.3);
    --hover-bg: rgba(2, 25, 64, 0.05);
    --selected-bg: rgba(0, 70, 205, 0.1);
    /* Waveform line colors */
    --line-voltage-1: #f9461c;
    --line-voltage-2: #d4a017;
    --line-amperage-1: #0046cd;
    --line-amperage-2: #00829d;
    /* Link colors */
    --link: #0046cd;
    --link-visited: #5c3d99;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

a {
    color: var(--link);
}

a:visited {
    color: var(--link-visited);
}

html, body {
    height: 100%;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--fg);
    background-color: var(--bg);
}

body {
    padding: 10px;
    display: flex;
    overflow: hidden;
}

/* ── layout panes ─────────────────────────────── */
.left-panel {
    width: 27%;
    height: 100%;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border);
    padding-right: 20px;
}

.right-panel {
    width: 73%;
    height: 100%;
    display: flex;
    flex-direction: column;
    padding-left: 20px;
}

/* ── header ─────────────────────────────────────── */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0 20px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 15px;
}

.header-title {
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-title img {
    height: 28px;
}

.header-controls {
    display: flex;
    gap: 15px;
    align-items: center;
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #888;
}

.status-dot.connected {
    background-color: #4ade80;
}

.status-dot.disconnected {
    background-color: #f87171;
}

.status-dot.connecting {
    background-color: #fbbf24;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ── feed list ──────────────────────────────────── */
.feed-header {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.new-anomalies-pill {
    width: 100%;
    margin: 0 0 10px 0;
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--selected-bg);
    color: var(--fg);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
}

.new-anomalies-pill:hover {
    background-color: var(--hover-bg);
}

.feed-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feed-item {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease;
    font-size: 13px;
}

.feed-item-text {
    font-weight: normal;
}

.feed-item:hover {
    background-color: var(--hover-bg);
}

.feed-item.selected {
    background-color: var(--selected-bg);
    border-color: var(--secondary);
}

.feed-item.unseen {
    border-left: 4px solid var(--accent);
    background-color: rgba(252, 144, 119, 0.1);
}

.feed-item.unseen .feed-item-text::before {
    content: "\2022 ";
    color: var(--accent);
}

.feed-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.feed-item-type {
    font-weight: 600;
    font-size: 15px;
}

.feed-item-status {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 10px;
    text-transform: uppercase;
    font-weight: 600;
}

.feed-item-status.new {
    background-color: var(--accent);
    color: var(--bg);
}

.feed-item-status.confirmed {
    background-color: var(--secondary);
    color: white;
}

.feed-item-status.resolved {
    background-color: var(--tertiary);
    color: var(--bg);
}

.feed-item-meta {
    font-size: 13px;
    opacity: 0.8;
    display: flex;
    gap: 15px;
}

.feed-item-summary {
    font-size: 13px;
    margin-top: 6px;
    opacity: 0.9;
}

/* ── detail panel ───────────────────────────────── */
.detail-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 15px;
}

.detail-header {
    font-size: 18px;
    font-weight: 600;
}

.detail-share-btn {
    font-size: 12px;
    padding: 5px 10px;
    white-space: nowrap;
    flex-shrink: 0;
}

.detail-placeholder {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    opacity: 0.6;
    border: 1px dashed var(--border);
    border-radius: 4px;
}

.detail-content {
    display: none;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow-y: auto;   /* whole detail scrolls when content (e.g. a long table) runs past the page */
}

.detail-content.visible {
    display: flex;
}

/* ── top split: table + map side by side ────────── */
.detail-top-split {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.detail-info {
    flex: 2;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, auto);   /* content-height rows (2nd row no longer stretched) */
    gap: 8px;
}

.detail-info .notes-section {
    grid-column: 1 / -1;
    margin-bottom: 0;
}

.detail-info-item {
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
}

.detail-info-label {
    font-size: 12px;
    opacity: 0.7;
    margin-bottom: 4px;
}

.detail-info-value {
    font-size: 16px;
    font-weight: 600;
}

/* feature-14 provenance/retention in the detail boxes */
.detail-prov { font-size: 11px; font-weight: 400; opacity: 0.6; margin-top: 3px; word-break: break-word; }
.detail-prov .detail-ovr { color: var(--accent); font-weight: 600; opacity: 1; }
.detail-ret { font-size: 14px; font-weight: 400; word-break: break-word; }
.detail-none { font-size: 14px; font-weight: 400; opacity: 0.55; }

/* ── map ────────────────────────────────────────── */
.map-container {
    flex: 1;
    min-height: 175px;
    border-radius: 4px;
    background-color: var(--hover-bg);
}

/* ── waveform plots ─────────────────────────────── */
.waveform-section {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.waveform-container {
    position: relative;
    height: 150px;
}

.waveform-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 14px;
    opacity: 0.6;
}

.axis path,
.axis line {
    stroke: currentColor;
    fill: none;
}

.axis text {
    fill: currentColor;
    font-size: 12px;
}

.grid line {
    stroke: currentColor;
    stroke-opacity: 0.2;
    shape-rendering: crispEdges;
}

.grid path {
    display: none;
}

/* crosshair target lines + value tooltip on the waveform plots */
.wf-crosshair {
    stroke: var(--fg);
    stroke-width: 1;
    stroke-dasharray: 4 3;
    opacity: 0.55;
    pointer-events: none;
    shape-rendering: crispEdges;
}

.wf-tip {
    pointer-events: none;
}

.wf-tip-bg {
    fill: var(--bg);
    stroke: var(--border);
    stroke-width: 1;
    opacity: 0.92;
}

.wf-tip-text {
    fill: var(--fg);
    font-size: 11px;
    font-variant-numeric: tabular-nums;
}

/* ── observations table ─────────────────────────── */
.observations-section {
    margin-top: 20px;
    position: relative;
}

.observations-section table {
    display: block;
}

.observations-section thead,
.observations-section tbody {
    display: table;
    width: 100%;
    table-layout: fixed;
}

.observations-section tbody {
    display: block;
}

.observations-section tbody tr {
    display: table;
    width: 100%;
    table-layout: fixed;
}

.observations-header {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

thead th {
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    text-align: left;
    padding: 6px 8px;
}

tbody td {
    padding: 6px 8px;
    border-bottom: 1px solid var(--border);
}

tbody tr:hover {
    background-color: var(--hover-bg);
}

tbody tr.selected {
    background-color: var(--selected-bg);
}

tbody tr.selected:hover {
    background-color: var(--selected-bg);
}

/* ── controls ───────────────────────────────────── */
select {
    background: var(--bg);
    color: var(--fg);
    border: 1px solid var(--border);
    padding: 6px 10px;
    font-size: 14px;
    border-radius: 4px;
    cursor: pointer;
}

select:focus {
    outline: none;
    border-color: var(--secondary);
}

.btn {
    padding: 8px 16px;
    background-color: var(--bg);
    color: var(--fg);
    border: 1px solid var(--fg);
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.1s ease;
}

.btn:hover {
    opacity: 0.9;
    background-color: var(--hover-bg);
}

.btn:active {
    transform: scale(0.98);
}

/* ── scrollbar styling ──────────────────────────── */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--fg);
    opacity: 0.5;
}

/* Login styles */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.login-box {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 40px;
    width: 100%;
    max-width: 360px;
}

.login-header {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 32px;
    justify-content: center;
}

.login-header img {
    height: 24px;
}

.login-field {
    margin-bottom: 20px;
}

.login-field label {
    display: block;
    font-size: 13px;
    margin-bottom: 6px;
    color: var(--fg);
    opacity: 0.8;
}

.login-field input {
    width: 100%;
    padding: 10px 12px;
    font-size: 14px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg);
    color: var(--fg);
}

.login-field input:focus {
    outline: none;
    border-color: var(--secondary);
}

/* password show/hide toggle */
.password-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.password-wrap input {
    padding-right: 64px;  /* room for the toggle button */
}

.password-toggle {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 600;
    background: transparent;
    color: var(--secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
}

.password-toggle:hover {
    background-color: var(--hover-bg);
}

.login-error {
    color: var(--accent);
    font-size: 13px;
    margin-bottom: 16px;
    min-height: 18px;
}

.login-button {
    width: 100%;
    padding: 12px;
    font-size: 14px;
    font-weight: 600;
    background: var(--secondary);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.login-button:hover {
    opacity: 0.9;
}

.app-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    gap: 10px;
}

/* ── top bar + tabs ─────────────────────────────── */
.topbar {
    display: flex;
    align-items: center;
    gap: 24px;
    /* No bottom padding: the tabs are the tallest item, so their bottom edge
       sits directly on the border line (folder-tab look, no bg-color gap). */
    padding: 4px 4px 0 4px;
    border-bottom: 1px solid var(--border);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    white-space: nowrap;
}

.brand img {
    height: 26px;
    /* Nudge just the logos up a few px; relative offset doesn't move the text. */
    position: relative;
    top: -1px;
}

.tabs {
    display: flex;
    gap: 6px;
}

.tab {
    padding: 8px 18px;
    background: transparent;
    color: var(--fg);
    border: 1px solid transparent;
    border-radius: 6px 6px 0 0;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    opacity: 0.7;
}

.tab:hover {
    background-color: var(--hover-bg);
    opacity: 1;
}

.tab.active {
    opacity: 1;
    background-color: var(--selected-bg);
    border-color: var(--border);
    border-bottom-color: transparent;
}

.topbar-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 15px;
}

.current-user {
    font-size: 13px;
    opacity: 0.8;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.logout-btn {
    padding: 6px 14px;
    font-size: 13px;
    font-weight: 600;
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
}

.logout-btn:hover {
    background-color: var(--hover-bg);
}

/* ── views ──────────────────────────────────────── */
.view {
    flex: 1;
    min-height: 0;
    width: 100%;
}

/* ── admin / users page ─────────────────────────── */
.admin-wrap {
    height: 100%;
    overflow-y: auto;
    padding: 4px 2px 20px 2px;
}

.admin-placeholder {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    opacity: 0.6;
    border: 1px dashed var(--border);
    border-radius: 4px;
}

.admin-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.admin-toolbar h2 {
    font-size: 18px;
    font-weight: 600;
}

.admin-status {
    font-size: 13px;
    min-height: 18px;
    margin-bottom: 8px;
    opacity: 0.85;
}

.admin-status.error {
    color: var(--accent);
    opacity: 1;
}

.users-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.users-table th,
.users-table td {
    text-align: left;
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.users-table th {
    font-weight: 600;
}

.perm-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.perm-chip {
    font-size: 11px;
    padding: 2px 7px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--selected-bg);
    white-space: nowrap;
}

.perm-chip.expired {
    opacity: 0.5;
    text-decoration: line-through;
}

.row-actions {
    display: flex;
    gap: 6px;
    white-space: nowrap;
}

.mini-btn {
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 600;
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
}

.mini-btn:hover:not(:disabled) {
    background-color: var(--hover-bg);
}

.mini-btn.danger {
    border-color: var(--accent);
    color: var(--accent);
}

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

/* user create/edit editor */
.user-form {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 16px;
    margin: 6px 0 14px 0;
    background: var(--hover-bg);
}

.user-form h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 16px;
    margin-bottom: 14px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-field label {
    font-size: 12px;
    opacity: 0.75;
}

.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="password"],
.form-field input[type="datetime-local"] {
    padding: 8px 10px;
    font-size: 13px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg);
    color: var(--fg);
}

.form-field.checkbox {
    flex-direction: row;
    align-items: center;
    gap: 8px;
}

.perm-editor {
    border-top: 1px solid var(--border);
    padding-top: 12px;
    margin-bottom: 14px;
}

.perm-editor-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 10px;
}

.perm-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 5px 0;
    font-size: 13px;
}

.perm-row .perm-name {
    width: 180px;
}

.perm-row .perm-desc {
    opacity: 0.6;
    font-size: 12px;
    flex: 1;
}

.perm-row select {
    padding: 4px 8px;
    font-size: 12px;
}

.form-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    border-top: 1px solid var(--border);
    padding-top: 12px;
}

/* ── notes section ─────────────────────────────── */
.notes-section {
    margin-bottom: 15px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
}

.notes-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}

.notes-header-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.notes-char-count {
    font-size: 12px;
    font-weight: normal;
    opacity: 0.6;
}

#notes-textarea {
    width: 100%;
    min-height: 0;
    height: calc(2em * 1.3 + 20px);
    padding: 10px;
    font-size: 13px;
    font-family: inherit;
    line-height: 1.3;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg);
    color: var(--fg);
    resize: vertical;
}

#notes-textarea:focus {
    outline: none;
    border-color: var(--secondary);
}

.notes-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 6px;
}

.notes-save-btn {
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 600;
    background: var(--secondary);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.notes-save-btn:hover:not(:disabled) {
    opacity: 0.9;
}

.notes-save-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.notes-status {
    font-size: 12px;
    opacity: 0.7;
}

.notes-status.saved {
    color: #4ade80;
}

.notes-status.error {
    color: var(--accent);
}

/* ── settings view ─────────────────────────────── */
.settings-wrap {
    height: 100%;
    overflow-y: auto;
    padding: 4px 2px 20px 2px;
    max-width: 520px;
}

.settings-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.settings-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
}

.settings-label {
    font-size: 13px;
    font-weight: 600;
}

.settings-section select:disabled { opacity: 0.5; cursor: not-allowed; }

.settings-hint {
    font-size: 12px;
    opacity: 0.6;
}

/* ── feed-family workspace (Live / Waveform / Hypothesis) ─── */
.view-workspace {
    display: flex;
    gap: 10px;
}

.left-mode {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.selection-criteria {
    padding-bottom: 12px;
    margin-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.section-header {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
}

.filter-form label {
    display: block;
    font-size: 12px;
    opacity: 0.7;
    margin-bottom: 4px;
}

.filter-row {
    display: flex;
    gap: 8px;
}

.filter-row input {
    flex: 1;
    min-width: 0;
    padding: 8px 10px;
    font-size: 13px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg);
    color: var(--fg);
}

.filter-row input:focus {
    outline: none;
    border-color: var(--secondary);
}

/* Impedance tab (feature-09) */
.imp-wrap { display: flex; gap: 20px; flex: 1; min-width: 0; height: 100%; padding: 20px; box-sizing: border-box; overflow: hidden; }
.imp-sidebar { width: 280px; flex-shrink: 0; overflow-y: auto; }
.imp-results { flex: 1; min-width: 0; overflow: auto; }
.imp-forbidden { flex: 1; display: flex; align-items: center; justify-content: center; opacity: 0.6; font-size: 15px; }
.imp-title { font-size: 16px; font-weight: 600; margin-bottom: 12px; }
.imp-subtitle { font-size: 14px; font-weight: 600; margin: 22px 0 8px; }
.imp-empty { opacity: 0.6; padding: 16px 0; font-size: 13px; }
.imp-pivot, .imp-table { border-collapse: collapse; font-size: 13px; }
.imp-pivot th, .imp-pivot td, .imp-table th, .imp-table td {
    border: 1px solid var(--border); padding: 6px 12px; text-align: right;
}
.imp-pivot thead th, .imp-table thead th { text-align: center; font-weight: 600; background: rgba(127, 127, 127, 0.08); }
.imp-pivot tbody th, .imp-table td.l, .imp-table th.l { text-align: left; font-weight: 500; }
.imp-table { width: 100%; }
.imp-export { display: inline-block; margin-top: 4px; font-size: 11px; }
.imp-total-row td { border-top: 2px solid var(--border); font-weight: 600; }

/* Waveforms aggregate scatter (feature-12) */
.wf-scatter { width: 100%; height: 300px; margin-top: 6px; }
.wf-scatter svg { overflow: visible; }
.wf-hiconf-line { stroke: var(--accent); stroke-width: 1.5; stroke-dasharray: 6 4; opacity: 0.9; }
.wf-hiconf-label { fill: var(--accent); font-size: 10px; font-weight: 600; }
.wf-link { color: var(--link); cursor: pointer; text-decoration: none; }
.wf-link:hover { text-decoration: underline; }

/* Chrome/WebKit renders the date-picker calendar icon dark; invert it on dark themes so
   it's visible. Light themes keep the default dark glyph. */
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="datetime-local"]::-webkit-calendar-picker-indicator { filter: invert(1); opacity: 0.7; }
[data-theme="light"] input[type="date"]::-webkit-calendar-picker-indicator,
[data-theme="light"] input[type="datetime-local"]::-webkit-calendar-picker-indicator,

/* datetime-local needs more width than a date input; stack from/to in the filter form */
.filter-form .f-dates { flex-direction: column; }
.filter-form .f-dates input { flex: none; width: 100%; box-sizing: border-box; }

/* Classification-override modal (feature-14) */
.ov-backdrop {
    position: fixed; inset: 0; z-index: 1000;
    background: rgba(0, 0, 0, 0.5);
    display: flex; align-items: center; justify-content: center;
}
.ov-modal {
    background: var(--bg); color: var(--fg);
    border: 1px solid var(--border); border-radius: 6px;
    padding: 16px; width: 600px; max-width: 92vw;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
}
.detail-override-btn { margin-top: 6px; font-size: 11px; padding: 3px 8px; }

/* Waveform detail: Export COMTRADE + Go-to-hypothesis on one row, splitting the width */
.detail-action-row { display: flex; gap: 8px; grid-column: 1 / -1; }
.detail-action-row > * { flex: 1 1 0; text-align: center; }
.detail-action-row .hyp-link { display: flex; align-items: center; justify-content: center; }
.ov-title { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.ov-sub { font-size: 12px; opacity: 0.8; margin-bottom: 10px; }
.ov-list { width: 100%; margin-bottom: 12px; }
.ov-buttons { display: flex; gap: 8px; justify-content: flex-end; flex-wrap: nowrap; }
.ov-primary { background: var(--secondary); border-color: var(--secondary); color: #fff; }
.ov-danger { border-color: var(--accent); color: var(--accent); }

/* feature-16: Retain button (waveform selection pane) + retain modal fields.
   .f-actions puts Apply and Retain at opposite ends of the row. Disabled buttons
   keep their box (not hidden) so their title tooltip explains why. */
.f-actions { justify-content: space-between; align-items: center; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn:disabled:hover { background-color: var(--bg); opacity: 0.4; }
.ov-modal .f-label { display: block; font-size: 12px; opacity: 0.7; margin: 10px 0 4px; }
.rt-user { font-size: 13px; margin-bottom: 4px; }
.ov-modal .rt-reason {
    width: 100%; box-sizing: border-box; resize: vertical;
    padding: 8px 10px; font-size: 13px; border: 1px solid var(--border);
    border-radius: 4px; background: var(--bg); color: var(--fg);
}
.ov-modal .rt-until {
    padding: 7px 9px; font-size: 13px; border: 1px solid var(--border);
    border-radius: 4px; background: var(--bg); color: var(--fg);
}
.imp-pager { display: flex; align-items: center; gap: 10px; margin-top: 10px; font-size: 13px; }
.imp-pager .btn { padding: 4px 10px; font-size: 12px; }
.agg-page-select { margin-bottom: 14px; }
.agg-page-select .f-label { margin-top: 0; }
#agg-page {
    width: 100%; box-sizing: border-box; padding: 7px 9px; font-size: 14px; font-weight: 600;
    border: 1px solid var(--border); border-radius: 4px; background: var(--bg); color: var(--fg);
}

/* DB admin tab (feature-11) */
.view-db { overflow-y: auto; }
.db-wrap { max-width: 900px; margin: 0 auto; padding: 16px 20px 40px; }
.db-section { margin-bottom: 24px; }
.db-row { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 14px; }
.db-row label { display: flex; flex-direction: column; font-size: 12px; opacity: 0.85; gap: 4px; }
.db-row input, .db-row select {
    padding: 6px 8px; font-size: 13px; border: 1px solid var(--border);
    border-radius: 4px; background: var(--bg); color: var(--fg);
}
.db-total { font-size: 13px; margin-bottom: 8px; }
.db-job { font-size: 13px; opacity: 0.85; word-break: break-all; }
.db-danger { border-color: var(--accent); color: var(--accent); }
.db-danger:disabled { opacity: 0.4; }

/* Structured filter form controls (feature-07) */
.filter-form .f-label {
    display: block;
    font-size: 12px;
    opacity: 0.7;
    margin: 10px 0 4px;
}
.filter-form .f-level,
.filter-form .f-conf,
.filter-form .f-values,
.filter-form .f-values-text {
    width: 100%;
    box-sizing: border-box;
    padding: 7px 9px;
    font-size: 13px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg);
    color: var(--fg);
}
.filter-form .f-mode {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
    margin: 8px 0;
}
.filter-form .f-mode label {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin: 0;
    font-size: 12px;
    opacity: 1;
    cursor: pointer;
}
.filter-form .f-values-wrap { margin-bottom: 4px; }
.filter-form .f-values { height: auto; }
.filter-form .f-values-text { margin-top: 0; }
.filter-form .f-dates { margin-bottom: 4px; }
.filter-form .btn { margin-top: 10px; }

/* "Go to linked hypothesis" link on the Waveform detail */
.hyp-link {
    grid-column: 1 / -1;
    display: block;
    padding: 8px 10px;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid var(--secondary);
    border-radius: 4px;
    text-decoration: none;
    text-align: center;
}

.hyp-link:hover {
    background-color: var(--hover-bg);
}

/* ── impedance placeholder ─────────────────────── */
.view-impedance {
    overflow: hidden;
}

/* ── sensor configuration tab ─────────────────── */
.view-sensor-config {
    display: block;
    position: relative;
    overflow-y: auto;
}

.sc-placeholder {
    height: 100%;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    opacity: 0.6;
    border: 1px dashed var(--border);
    border-radius: 4px;
    padding: 40px;
    display: flex;
}

.sc-wrap {
    max-width: 720px;
    margin: 0 auto;
    padding: 4px 2px 24px 2px;
}

.sc-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    text-align: center;
}

.sc-selector {
    margin-bottom: 16px;
}

.sc-selector > label {
    display: block;
    font-size: 12px;
    opacity: 0.7;
    margin-bottom: 4px;
}

.sc-sensor-status {
    margin-top: 8px;
    font-size: 13px;
    min-height: 18px;
}

.sc-online { color: #4ade80; }
.sc-offline { color: var(--accent); }

.sc-boxes {
    flex-direction: column;
    gap: 12px;
}

.sc-box {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 14px 16px;
}

.sc-box-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 10px;
}

.sc-box-desc {
    font-size: 13px;
    opacity: 0.75;
    margin-bottom: 10px;
}

.sc-box-todo {
    opacity: 0.55;
}

.sc-mode {
    display: flex;
    gap: 18px;
    margin-bottom: 12px;
    font-size: 13px;
}

.sc-mode label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.sc-params {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sc-param {
    display: grid;
    grid-template-columns: 1fr 120px 90px;
    align-items: center;
    gap: 10px;
    font-size: 13px;
}

.sc-param input[type="number"] {
    padding: 6px 8px;
    font-size: 13px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg);
    color: var(--fg);
    width: 100%;
}

.sc-param input:disabled {
    opacity: 0.5;
}

.sc-default {
    font-size: 11px;
    opacity: 0.5;
}

.sc-box-note {
    font-size: 12px;
    opacity: 0.6;
    font-style: italic;
    margin-top: 12px;
}

.sc-syncbar {
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.sc-dirty {
    color: var(--accent);
    font-size: 14px;
}

.sc-sync-status,
.sc-request-status {
    font-size: 12px;
    opacity: 0.85;
    margin-left: 8px;
}

.sc-sync-status.saved,
.sc-request-status.saved { color: #4ade80; }
.sc-sync-status.error,
.sc-request-status.error { color: var(--accent); }

/* blocking popover during the async status query */
.sc-popover {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    align-items: center;
    justify-content: center;
    z-index: 50;
    display: flex;
}

.sc-popover-box {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px 32px;
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 14px;
}

.sc-spinner {
    width: 18px;
    height: 18px;
    border: 3px solid var(--border);
    border-top-color: var(--secondary);
    border-radius: 50%;
    animation: sc-spin 0.8s linear infinite;
}

@keyframes sc-spin {
    to { transform: rotate(360deg); }
}