/* ── CSS Custom Properties ───────────────────────────────────────────────── */
:root {
    --bg:          #0d1117;
    --surface:     #161b22;
    --surface-2:   #21262d;
    --border:      #30363d;
    --border-soft: #21262d;

    --text:        #e6edf3;
    --text-muted:  #8b949e;
    --text-dim:    #6e7681;

    --accent:      #388bfd;
    --accent-dark: #1f6feb;
    --accent-glow: rgba(56, 139, 253, 0.25);

    --green:       #2ea043;
    --green-bg:    rgba(46, 160, 67, 0.15);
    --green-border: rgba(46, 160, 67, 0.4);

    --red:         #da3633;
    --red-bg:      rgba(218, 54, 51, 0.15);
    --red-border:  rgba(218, 54, 51, 0.4);

    --yellow:      #d29922;
    --yellow-bg:   rgba(210, 153, 34, 0.15);
    --yellow-border: rgba(210, 153, 34, 0.4);

    --blue-bg:     rgba(31, 111, 235, 0.15);
    --blue-border: rgba(31, 111, 235, 0.4);

    --purple:      #bc8cff;
    --purple-bg:   rgba(188, 140, 255, 0.15);
    --purple-border: rgba(188, 140, 255, 0.4);

    --sidebar-w:   210px;
    --topbar-h:    56px;
    --radius:      6px;
    --radius-sm:   4px;
    --transition:  0.15s ease;

    /* Port card colors */
    --port-connected-bg:     rgba(46, 160, 67, 0.12);
    --port-connected-border: #2ea043;
    --port-empty-bg:         var(--surface-2);
    --port-empty-border:     var(--border);
    --port-wan-bg:           rgba(31, 111, 235, 0.12);
    --port-wan-border:       #1f6feb;
    --port-mgmt-bg:          rgba(188, 140, 255, 0.12);
    --port-mgmt-border:      #bc8cff;
    --port-disabled-bg:      rgba(218, 54, 51, 0.08);
    --port-disabled-border:  rgba(218, 54, 51, 0.35);
}

/* ── Reset & Base ────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { height: 100%; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    background: var(--bg);
    color: var(--text);
    height: 100%;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── App Shell / Layout ──────────────────────────────────────────────────── */
.app-shell {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-w);
    flex-shrink: 0;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
}

.brand-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
    flex-shrink: 0;
}

.brand-dot-lg {
    width: 18px;
    height: 18px;
}

.brand-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: 0.01em;
}

.sidebar-nav {
    list-style: none;
    padding: 12px 0;
    flex: 1;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 20px;
    color: var(--text-muted);
    font-size: 13.5px;
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: color var(--transition), background var(--transition), border-color var(--transition);
    text-decoration: none;
}

.nav-link:hover {
    color: var(--text);
    background: var(--surface-2);
    text-decoration: none;
}

.nav-link.active {
    color: var(--accent);
    background: var(--blue-bg);
    border-left-color: var(--accent);
}

.nav-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.sidebar-user {
    font-size: 12.5px;
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.logout-form {
    display: contents;
}

.btn-logout {
    font-size: 12px;
    color: var(--text-dim);
    text-decoration: none;
    padding: 3px 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: color var(--transition), border-color var(--transition);
    white-space: nowrap;
    flex-shrink: 0;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

.btn-logout:hover {
    color: var(--red);
    border-color: var(--red-border);
    text-decoration: none;
}

/* ── Topbar ──────────────────────────────────────────────────────────────── */
.topbar {
    height: var(--topbar-h);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 28px;
    background: var(--surface);
    flex-shrink: 0;
}

.topbar-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
}

/* ── Main Content ────────────────────────────────────────────────────────── */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* ── Flash Messages ──────────────────────────────────────────────────────── */
.flash {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 13.5px;
    font-weight: 500;
}

.flash-success {
    background: var(--green-bg);
    border: 1px solid var(--green-border);
    color: #3fb950;
}

.flash-error {
    background: var(--red-bg);
    border: 1px solid var(--red-border);
    color: #ff7b72;
}

.flash-hiding {
    transition: opacity 0.4s ease;
    opacity: 0;
}

/* ── Stats Grid ──────────────────────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
}

.stat-card-green { border-color: var(--green-border); }

.stat-value {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.1;
    color: var(--text);
    font-variant-numeric: tabular-nums;
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 500;
}

/* ── Panel ───────────────────────────────────────────────────────────────── */
.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    flex-shrink: 0;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
    background: var(--surface-2);
}

.panel-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

/* ── Port Grid (Switch Panel Visualization) ──────────────────────────────── */
.port-grid-wrap {
    overflow-x: auto;
    padding: 20px;
}

.panel-face-label {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-dim);
    padding: 0 0 6px 2px;
}

.panel-face-label-rear {
    padding-top: 16px;
    border-top: 1px solid var(--border);
    margin-top: 16px;
}

.port-grid {
    display: grid;
    /* grid-template-columns and grid-template-rows are set by app.js
       based on data-rows / data-cols attributes so the grid matches
       the exact physical dimensions of the switch panel. */
    gap: 12px;
    width: max-content;
    min-width: 100%;
}

/* ── Grid row placement: gr-1 … gr-10 ───────────────────────────────────── */
.gr-1  { grid-row: 1;  }
.gr-2  { grid-row: 2;  }
.gr-3  { grid-row: 3;  }
.gr-4  { grid-row: 4;  }
.gr-5  { grid-row: 5;  }
.gr-6  { grid-row: 6;  }
.gr-7  { grid-row: 7;  }
.gr-8  { grid-row: 8;  }
.gr-9  { grid-row: 9;  }
.gr-10 { grid-row: 10; }

/* ── Grid column placement: gc-1 … gc-50 ────────────────────────────────── */
.gc-1  { grid-column: 1;  }
.gc-2  { grid-column: 2;  }
.gc-3  { grid-column: 3;  }
.gc-4  { grid-column: 4;  }
.gc-5  { grid-column: 5;  }
.gc-6  { grid-column: 6;  }
.gc-7  { grid-column: 7;  }
.gc-8  { grid-column: 8;  }
.gc-9  { grid-column: 9;  }
.gc-10 { grid-column: 10; }
.gc-11 { grid-column: 11; }
.gc-12 { grid-column: 12; }
.gc-13 { grid-column: 13; }
.gc-14 { grid-column: 14; }
.gc-15 { grid-column: 15; }
.gc-16 { grid-column: 16; }
.gc-17 { grid-column: 17; }
.gc-18 { grid-column: 18; }
.gc-19 { grid-column: 19; }
.gc-20 { grid-column: 20; }
.gc-21 { grid-column: 21; }
.gc-22 { grid-column: 22; }
.gc-23 { grid-column: 23; }
.gc-24 { grid-column: 24; }
.gc-25 { grid-column: 25; }
.gc-26 { grid-column: 26; }
.gc-27 { grid-column: 27; }
.gc-28 { grid-column: 28; }
.gc-29 { grid-column: 29; }
.gc-30 { grid-column: 30; }
.gc-31 { grid-column: 31; }
.gc-32 { grid-column: 32; }
.gc-33 { grid-column: 33; }
.gc-34 { grid-column: 34; }
.gc-35 { grid-column: 35; }
.gc-36 { grid-column: 36; }
.gc-37 { grid-column: 37; }
.gc-38 { grid-column: 38; }
.gc-39 { grid-column: 39; }
.gc-40 { grid-column: 40; }
.gc-41 { grid-column: 41; }
.gc-42 { grid-column: 42; }
.gc-43 { grid-column: 43; }
.gc-44 { grid-column: 44; }
.gc-45 { grid-column: 45; }
.gc-46 { grid-column: 46; }
.gc-47 { grid-column: 47; }
.gc-48 { grid-column: 48; }
.gc-49 { grid-column: 49; }
.gc-50 { grid-column: 50; }

.port-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 10px 8px;
    border-radius: var(--radius);
    border: 2px solid var(--port-empty-border);
    background: var(--port-empty-bg);
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    min-height: 80px;
    text-align: center;
    user-select: none;
}

.port-poe-badge {
    font-size: 10px;
    line-height: 1;
    filter: grayscale(1) opacity(0.45);
}

.port-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.port-card.port-connected {
    background: var(--port-connected-bg);
    border-color: var(--port-connected-border);
}

.port-card.port-wan {
    background: var(--port-wan-bg);
    border-color: var(--port-wan-border);
}

.port-card.port-mgmt {
    background: var(--port-mgmt-bg);
    border-color: var(--port-mgmt-border);
}

.port-card.port-disabled {
    background: var(--port-disabled-bg);
    border-color: var(--port-disabled-border);
    opacity: 0.6;
}

.port-number {
    font-size: 22px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    line-height: 1;
    color: var(--text);
}

.port-type-badge {
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--text-dim);
    text-transform: uppercase;
}

.port-device {
    font-size: 10px;
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 100%;
    text-align: center;
    max-width: 74px;
}

.port-vlan {
    font-size: 9px;
    color: var(--text-dim);
}

.port-empty-label {
    color: var(--text-dim);
    font-style: italic;
}

/* Port Legend */
.port-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding: 12px 20px;
    border-top: 1px solid var(--border-soft);
    background: var(--surface-2);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-muted);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 2px solid;
    flex-shrink: 0;
}

.legend-connected { background: var(--port-connected-bg);  border-color: var(--port-connected-border); }
.legend-empty     { background: var(--port-empty-bg);       border-color: var(--port-empty-border); }
.legend-wan       { background: var(--port-wan-bg);         border-color: var(--port-wan-border); }
.legend-mgmt      { background: var(--port-mgmt-bg);        border-color: var(--port-mgmt-border); }
.legend-disabled  { background: var(--port-disabled-bg);    border-color: var(--port-disabled-border); }

/* ── Tables ──────────────────────────────────────────────────────────────── */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

.data-table th {
    padding: 10px 16px;
    text-align: left;
    font-size: 11.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    background: var(--surface-2);
    white-space: nowrap;
}

.data-table td {
    padding: 11px 16px;
    border-bottom: 1px solid var(--border-soft);
    vertical-align: middle;
}

.data-table tbody tr:last-child td { border-bottom: none; }

.data-table tbody tr:hover td { background: var(--surface-2); }

.col-actions { width: 1%; white-space: nowrap; text-align: right; }

.actions-cell {
    display: flex;
    align-items: center;
    gap: 6px;
    justify-content: flex-end;
}

.notes-cell {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-muted);
}

/* ── Badges ──────────────────────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 99px;
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.badge-type {
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 10.5px;
    letter-spacing: 0.06em;
}

.badge-success {
    background: var(--green-bg);
    border: 1px solid var(--green-border);
    color: #3fb950;
}

.badge-danger {
    background: var(--red-bg);
    border: 1px solid var(--red-border);
    color: #ff7b72;
}

.badge-warning {
    background: var(--yellow-bg);
    border: 1px solid var(--yellow-border);
    color: #e3b341;
}

.badge-neutral {
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--text-muted);
}

.badge-proto-tcp  { background: var(--blue-bg);   border: 1px solid var(--blue-border);   color: #79c0ff; }
.badge-proto-udp  { background: var(--purple-bg); border: 1px solid var(--purple-border); color: var(--purple); }
.badge-proto-both { background: var(--surface-2); border: 1px solid var(--border);        color: var(--text-muted); }

.badge-status-active   { background: var(--green-bg);  border: 1px solid var(--green-border);  color: #3fb950; }
.badge-status-disabled { background: var(--red-bg);    border: 1px solid var(--red-border);    color: #ff7b72; }
.badge-status-unknown  { background: var(--surface-2); border: 1px solid var(--border);        color: var(--text-muted); }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: var(--radius);
    font-size: 13.5px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    text-decoration: none;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
    white-space: nowrap;
    line-height: 1.4;
}

.btn:hover { text-decoration: none; }

.btn-primary {
    background: var(--accent-dark);
    border-color: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: #388bfd;
    border-color: #58a6ff;
    color: #fff;
}

.btn-secondary {
    background: var(--surface-2);
    border-color: var(--border);
    color: var(--text-muted);
}

.btn-secondary:hover {
    background: var(--border);
    color: var(--text);
}

.btn-danger {
    background: var(--red-bg);
    border-color: var(--red-border);
    color: #ff7b72;
}

.btn-danger:hover {
    background: var(--red);
    border-color: var(--red);
    color: #fff;
}

.btn-warning {
    background: var(--yellow-bg);
    border-color: var(--yellow-border);
    color: var(--yellow);
}

.btn-warning:hover {
    background: var(--yellow);
    border-color: var(--yellow);
    color: #000;
}

.btn-sm  { padding: 5px 11px; font-size: 12.5px; }
.btn-xs  { padding: 3px 8px;  font-size: 12px; }
.btn-full { width: 100%; }

/* ── Forms ───────────────────────────────────────────────────────────────── */
.form { padding: 20px; }

.form-inline-section {
    padding: 16px 20px;
    border-top: 1px solid var(--border-soft);
    background: var(--surface-2);
}

.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 16px;
}

.form-row:last-child { margin-bottom: 0; }

.field-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
    flex: 1;
    min-width: 160px;
}

.field-group-wide  { flex: 2; }
.field-group-narrow { flex: 0 0 110px; min-width: 110px; }
.field-group-check  { flex: 0 0 auto; justify-content: flex-end; }

.field-label {
    font-size: 12.5px;
    font-weight: 500;
    color: var(--text-muted);
}

.required { color: var(--red); }

.field-input {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 13.5px;
    padding: 7px 10px;
    width: 100%;
    transition: border-color var(--transition), box-shadow var(--transition);
    font-family: inherit;
}

.field-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(56, 139, 253, 0.15);
}

.field-input::placeholder { color: var(--text-dim); }

textarea.field-input { resize: vertical; }

select.field-input { cursor: pointer; }

.field-hint {
    font-size: 11.5px;
    color: var(--text-dim);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-muted);
    padding-top: 22px;
}

.checkbox-label input[type="checkbox"] {
    width: 15px;
    height: 15px;
    accent-color: var(--accent);
    cursor: pointer;
}

.form-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-top: 20px;
}

.panel-form { overflow: visible; }

/* ── Page Actions ────────────────────────────────────────────────────────── */
.page-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ── Collapsible ─────────────────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ── Device Detail ───────────────────────────────────────────────────────── */
.device-title-block {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.device-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0;
    padding: 0;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px 20px;
    border-right: 1px solid var(--border);
}

.meta-item:last-child,
.meta-item-full { border-right: none; }

.meta-item-full { grid-column: 1 / -1; }

.meta-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-dim);
}

.meta-value { font-size: 13.5px; color: var(--text); }

/* ── Misc ────────────────────────────────────────────────────────────────── */
.mono {
    font-family: 'SFMono-Regular', 'Cascadia Code', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 13px;
}

.text-muted { color: var(--text-muted); }

.link { color: var(--accent); }
.link:hover { color: #58a6ff; }
.link-strong { font-weight: 500; }

.inline-form { display: inline-flex; }

.error-message {
    color: var(--red);
    padding: 16px;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 48px 24px;
    color: var(--text-muted);
    text-align: center;
}

.empty-state-sm {
    padding: 24px 20px;
    color: var(--text-muted);
    font-size: 13.5px;
    font-style: italic;
}

/* ── Login Page ──────────────────────────────────────────────────────────── */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--bg);
}

.login-card {
    width: 100%;
    max-width: 360px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.login-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
}

.login-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
}

.login-subtitle {
    font-size: 13px;
    color: var(--text-muted);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* ── Panel Editor ────────────────────────────────────────────────────────── */
.panel-editor-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.panel-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.panel-controls-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-device-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    margin-right: 4px;
}

.panel-ctrl-label {
    font-size: 12.5px;
    font-weight: 500;
    color: var(--text-muted);
}

.panel-ctrl-input {
    width: 72px;
    padding: 5px 8px;
    font-size: 13px;
}

/* ── Dashboard Connections ───────────────────────────────────────────────── */
.dashboard-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.connect-color-picker {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.color-swatch {
    display: inline-block;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid rgba(255, 255, 255, 0.25);
    outline: 1px solid rgba(0, 0, 0, 0.4);
    transition: transform 0.1s ease, border-color 0.1s ease, box-shadow 0.1s ease;
    flex-shrink: 0;
}
.color-swatch:hover {
    transform: scale(1.25);
    border-color: rgba(255, 255, 255, 0.6);
}
.color-swatch-active {
    border-color: #fff;
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.5);
    transform: scale(1.2);
}

.connect-color-hint {
    font-size: 11.5px;
    color: var(--text-muted);
    margin-left: 4px;
}

#dashboard-devices {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

#connections-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    pointer-events: none;
    overflow: visible;
    z-index: 2;
}

.port-card.connectable {
    cursor: crosshair !important;
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Edge-zone indicator: highlights the side the wire will attach to */
.port-card.connectable[data-zone]::before {
    content: '';
    position: absolute;
    background: var(--accent);
    border-radius: 2px;
    pointer-events: none;
    z-index: 10;
}
.port-card.connectable[data-zone="top"]::before    { top: 3px;    left: 20%; right: 20%; height: 3px; }
.port-card.connectable[data-zone="bottom"]::before { bottom: 3px; left: 20%; right: 20%; height: 3px; }
.port-card.connectable[data-zone="left"]::before   { left: 3px;   top: 20%; bottom: 20%; width: 3px;  }
.port-card.connectable[data-zone="right"]::before  { right: 3px;  top: 20%; bottom: 20%; width: 3px;  }

.port-card.conn-selected {
    outline: 2px solid var(--yellow);
    outline-offset: 2px;
    background: var(--yellow-bg) !important;
}

.port-card.conn-occupied {
    opacity: 0.35;
    cursor: not-allowed !important;
}

.conn-hit {
    cursor: pointer;
    pointer-events: stroke;
}

.conn-line,
.conn-dot {
    pointer-events: none;
}

/* Disable connection hit areas while connect mode is active so they
   don't intercept clicks intended for port cards underneath */
#connections-svg.connect-mode-active .conn-hit {
    pointer-events: none;
}

/* Device panel sections in global panel editor */
#panel-editor-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.device-panel-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.device-panel-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
    background: var(--surface-2);
    flex-wrap: wrap;
    cursor: grab;
    user-select: none;
}
.device-panel-section-header:active {
    cursor: grabbing;
}
.device-panel-section-header a,
.device-panel-section-header button {
    cursor: pointer;
    user-select: auto;
}

.device-section-label {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text);
    min-width: 80px;
}

.device-panel-section.dragging {
    opacity: 0.45;
}
.device-panel-section.drag-over-top {
    border-top: 2px solid var(--accent);
}
.device-panel-section.drag-over-bottom {
    border-bottom: 2px solid var(--accent);
}

.device-panel-resize {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

/* Standalone legend outside any panel */
.port-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding: 12px 16px;
}

/* Empty cell in panel editor */
.port-cell-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80px;
    border-radius: var(--radius);
    border: 2px dashed var(--border);
    background: transparent;
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
    color: var(--text-dim);
}

.port-cell-empty:hover {
    border-color: var(--accent);
    background: var(--blue-bg);
    color: var(--accent);
}

.cell-add-icon {
    font-size: 22px;
    line-height: 1;
    font-weight: 300;
    pointer-events: none;
}

/* Dragging state */
.port-card.dragging {
    opacity: 0.4;
    cursor: grabbing;
}

.port-card[draggable="true"] {
    cursor: grab;
}

.port-cell-empty.drag-over {
    border-color: var(--accent);
    background: var(--blue-bg);
}

.port-card.drag-over {
    border-color: var(--yellow);
    background: var(--yellow-bg);
}

/* ── Modal ───────────────────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    width: 100%;
    max-width: 540px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 22px;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    transition: color var(--transition);
}

.modal-close:hover { color: var(--text); }

.modal-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.modal-error {
    background: var(--red-bg);
    border: 1px solid var(--red-border);
    color: #ff7b72;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 14px;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    gap: 10px;
}

.modal-footer-right {
    display: flex;
    gap: 8px;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar { width: 56px; }
    .brand-name,
    .nav-link span,
    .sidebar-user,
    .btn-logout { display: none; }
    .nav-link { padding: 10px; justify-content: center; }
    .nav-icon { width: 20px; height: 20px; }
    .sidebar-footer { justify-content: center; padding: 12px; }
    .main-content { padding: 16px; }
    .form-row { flex-direction: column; }
    .field-group-narrow { flex: 1; }
}

/* ── Backup & Restore ────────────────────────────────────────────────────── */
.backup-page {
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-width: 640px;
}

.backup-panel {
    padding: 24px;
}

.backup-section-title {
    font-size: 15px;
    font-weight: 600;
    margin: 0 0 8px 0;
    color: var(--text);
}

.backup-desc {
    color: var(--text-dim);
    font-size: 13px;
    line-height: 1.6;
    margin: 0 0 16px 0;
}

.backup-upload-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.backup-file-input {
    font-size: 13px;
    color: var(--text-dim);
}