/* OMAC Edge — Application Theme
   Single source of truth for all design tokens.
   Other stylesheets (style.css, industrial.css, reports.css) must use var(--*) only. */

:root {
    /* ===== BRAND ===== */
    --omac-navy: #142543;
    --omac-navy-light: #1e3a5f;
    --omac-navy-dark: #0d1a2d;
    --omac-navy-mid: #1a2f4a;
    --omac-orange: #fb481d;
    --omac-orange-hover: #e03d15;
    --omac-orange-light: #ff6b45;
    --omac-orange-active: #c93412;
    --omac-gray: #60625f;
    --omac-gray-light: #8a8c89;

    /* ===== SEMANTIC COLORS ===== */
    --color-success: #28a745;
    --color-success-dark: #198754;
    --color-success-bg: #d1e7dd;
    --color-success-border: #badbcc;
    --color-success-border-alt: #a3cfbb;
    --color-success-text: #0f5132;
    --color-success-text-alt: #155724;
    --color-success-bright: #00c853;
    --color-success-emerald: #10b981;
    --color-success-emerald-dark: #059669;
    --color-success-emerald-hover: #0d9668;
    --color-success-emerald-deep: #047857;

    --color-danger: #dc3545;
    --color-danger-bg: #f8d7da;
    --color-danger-border: #f5c2c7;
    --color-danger-border-alt: #f1aeb5;
    --color-danger-text: #842029;
    --color-danger-text-alt: #721c24;
    --color-danger-bright: #ff3d00;
    --color-danger-red: #ef4444;
    --color-danger-red-dark: #dc2626;
    --color-danger-red-hover: #e03e3e;
    --color-danger-red-deep: #c62323;

    --color-warning: #ffc107;
    --color-warning-bg: #fff3cd;
    --color-warning-border: #ffecb5;
    --color-warning-border-alt: #ffeaa7;
    --color-warning-text: #664d03;
    --color-warning-amber: #f59e0b;
    --color-warning-amber-dark: #d97706;
    --color-warning-amber-hover: #e08e0a;
    --color-warning-amber-deep: #c56605;

    --color-info: #17a2b8;
    --color-info-bg: #cff4fc;
    --color-info-border: #b6effb;
    --color-info-text: #055160;
    --color-info-text-alt: #0d47a1;
    --color-info-surface: #e3f2fd;
    --color-info-read-bg: #d1ecf1;
    --color-info-read-text: #0c5460;
    --color-info-green-bg: #e8f5e8;
    --color-info-green-text: #1b5e20;

    --color-secondary: #6c757d;
    --color-secondary-dark: #5a6268;
    --color-secondary-darker: #565e64;
    --color-secondary-surface: #e2e3e5;
    --color-secondary-surface-text: #383d41;
    --color-secondary-gray: #9ca3af;
    --color-secondary-gray-dark: #6b7280;
    --color-secondary-gray-muted: #718096;
    --color-secondary-slate: #4a5568;

    /* ===== TYPOGRAPHY ===== */
    --text-primary: #1a2332;
    --text-secondary: #495057;
    --text-muted: #6c757d;
    --text-dim: #adb5bd;
    --text-body: #212529;
    --text-heading: #2d3748;
    --text-code: #d73a49;
    --text-on-dark: #ffffff;
    --text-on-dark-muted: rgba(255, 255, 255, 0.82);
    --text-on-dark-90: rgba(255, 255, 255, 0.9);
    --text-black: #000000;
    --text-white: #ffffff;

    /* ===== SURFACES ===== */
    --body-bg: #eef1f6;
    --surface-bg: #ffffff;
    --surface-muted: #f4f6f9;
    --surface-header: #f0f3f8;
    --surface-header-end: #e8ecf2;
    --surface-elevated: #f8f9fa;
    --surface-subtle: #e9ecef;
    --surface-disabled: #f0f2f5;
    --surface-disabled-alt: #f0f0f0;
    --surface-overlay: rgba(255, 255, 255, 0.8);
    --surface-overlay-shell: rgba(238, 241, 246, 0.85);
    --surface-backup: rgba(20, 37, 67, 0.06);

    /* ===== BORDERS ===== */
    --border-subtle: #dde3ec;
    --border-default: #dee2e6;
    --border-light: #ced4da;
    --border-info: #e3f2fd;
    --border-divider: rgba(0, 0, 0, 0.05);
    --border-divider-strong: rgba(0, 0, 0, 0.125);

    /* ===== GRADIENTS ===== */
    --gradient-header: linear-gradient(135deg, var(--omac-navy-dark) 0%, var(--omac-navy) 55%, var(--omac-navy-light) 100%);
    --gradient-primary: linear-gradient(135deg, var(--omac-navy-dark) 0%, var(--omac-navy) 50%, var(--omac-navy-light) 100%);
    --gradient-accent: linear-gradient(135deg, var(--omac-orange) 0%, var(--omac-orange-hover) 100%);
    --gradient-surface: linear-gradient(135deg, var(--surface-bg) 0%, var(--surface-elevated) 100%);
    --gradient-surface-header: linear-gradient(135deg, var(--surface-elevated) 0%, var(--surface-subtle) 100%);
    --gradient-surface-muted: linear-gradient(135deg, var(--surface-elevated) 0%, var(--body-bg) 100%);
    --gradient-panel-header: linear-gradient(180deg, var(--surface-elevated) 0%, var(--body-bg) 100%);
    --gradient-table-header: linear-gradient(180deg, var(--surface-header) 0%, var(--surface-header-end) 100%);
    --gradient-scada-header: linear-gradient(180deg, var(--omac-navy-mid) 0%, var(--omac-navy-dark) 100%);
    --gradient-status-enabled: linear-gradient(135deg, var(--color-success-emerald) 0%, var(--color-success-emerald-dark) 100%);
    --gradient-status-disabled: linear-gradient(135deg, var(--color-secondary-gray) 0%, var(--color-secondary-gray-dark) 100%);
    --gradient-status-error: linear-gradient(135deg, var(--color-danger-red) 0%, var(--color-danger-red-dark) 100%);
    --gradient-status-enabled-hover: linear-gradient(135deg, var(--color-success-emerald-hover) 0%, var(--color-success-emerald-deep) 100%);
    --gradient-status-warning: linear-gradient(135deg, var(--color-warning-amber) 0%, var(--color-warning-amber-dark) 100%);
    --gradient-status-warning-hover: linear-gradient(135deg, var(--color-warning-amber-hover) 0%, var(--color-warning-amber-deep) 100%);
    --gradient-status-error-hover: linear-gradient(135deg, var(--color-danger-red-hover) 0%, var(--color-danger-red-deep) 100%);

    /* ===== SHADOWS ===== */
    --shadow-color: rgba(20, 37, 67, 0.12);
    --shadow-xs: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 8px 25px rgba(0, 0, 0, 0.15);
    --shadow-card: 0 4px 20px rgba(20, 37, 67, 0.08);
    --shadow-modal: 0 0.5rem 2rem rgba(20, 37, 67, 0.12);
    --shadow-modal-lg: 0 0.5rem 2rem rgba(0, 0, 0, 0.15);
    --shadow-shell: 0 4px 16px rgba(20, 37, 67, 0.08);
    --shadow-accent: 0 4px 12px rgba(251, 72, 29, 0.15);
    --shadow-info: 0 4px 12px rgba(33, 150, 243, 0.1);
    --shadow-btn-hover: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-status-enabled: 0 0 20px rgba(16, 185, 129, 0.4);
    --shadow-status-disabled: 0 0 20px rgba(107, 114, 128, 0.3);
    --shadow-status-error: 0 0 20px rgba(239, 68, 68, 0.4);
    --shadow-column-hover: 0 2px 8px rgba(13, 110, 253, 0.1);
    --shadow-column-accent: 0 2px 8px rgba(251, 72, 29, 0.15);

    /* ===== FOCUS & INTERACTION ===== */
    --focus-ring: rgba(251, 72, 29, 0.25);
    --focus-ring-danger: rgba(220, 53, 69, 0.25);
    --focus-ring-info: rgba(33, 150, 243, 0.2);
    --accent-primary: var(--omac-orange);
    --accent-hover-bg: rgba(251, 72, 29, 0.08);
    --accent-subtle-bg: rgba(251, 72, 29, 0.06);
    --accent-medium-bg: rgba(251, 72, 29, 0.1);
    --accent-selected-bg: rgba(251, 72, 29, 0.12);
    --accent-strong-bg: rgba(251, 72, 29, 0.15);
    --accent-nav-hover: rgba(251, 72, 29, 0.15);
    --accent-nav-active: rgba(251, 72, 29, 0.22);
    --nav-toggler-border: rgba(255, 255, 255, 0.3);
    --shimmer-highlight: rgba(255, 255, 255, 0.2);

    /* ===== TABLE ===== */
    --table-stripe: rgba(20, 37, 67, 0.03);
    --table-hover: rgba(251, 72, 29, 0.06);
    --row-writable-bg: #fff9e6;
    --row-writable-hover: #fff3cd;
    --row-hover: var(--surface-elevated);

    /* ===== BADGES (modbus) ===== */
    --badge-read-bg: var(--color-info-read-bg);
    --badge-read-text: var(--color-info-read-text);
    --badge-write-bg: var(--color-danger-bg);
    --badge-write-text: var(--color-danger-text-alt);
    --badge-readwrite-bg: #d4edda;
    --badge-readwrite-text: var(--color-success-text-alt);
    --badge-type-bg: var(--color-secondary-surface);
    --badge-type-text: var(--color-secondary-surface-text);
    --badge-sign-bg: #cfe2ff;
    --badge-sign-text: #084298;
    --badge-length-bg: var(--color-success-bg);
    --badge-length-text: var(--color-success-text);

    /* ===== INDUSTRIAL / SCADA ===== */
    --status-ok: #00c853;
    --status-warning: #ffc107;
    --status-alarm: #ff3d00;
    --status-offline: #5f6368;
    --status-disconnected: #9e9e9e;

    --led-green: #00e676;
    --led-yellow: #ffea00;
    --led-red: #ff1744;
    --led-gray: #424242;
    --led-blue: #00b0ff;

    --type-int-color: #4caf50;
    --type-bool-color: #ff9800;
    --mode-read-color: #42a5f5;
    --mode-read-bg: rgba(33, 150, 243, 0.15);
    --mode-read-border: rgba(33, 150, 243, 0.3);
    --mode-write-color: #ffb74d;
    --mode-write-bg: rgba(255, 152, 0, 0.15);
    --mode-write-border: rgba(255, 152, 0, 0.3);
    --mode-readwrite-color: #81c784;
    --mode-readwrite-bg: rgba(76, 175, 80, 0.15);
    --mode-readwrite-border: rgba(76, 175, 80, 0.3);

    --alarm-critical-bg: rgba(255, 23, 68, 0.15);
    --alarm-warning-bg: rgba(255, 234, 0, 0.15);
    --alarm-normal-bg: rgba(0, 230, 118, 0.15);
    --panel-status-ok-bg: rgba(0, 200, 83, 0.2);
    --panel-status-warning-bg: rgba(255, 193, 7, 0.2);
    --panel-status-alarm-bg: rgba(255, 61, 0, 0.2);
    --panel-status-unknown-bg: rgba(95, 99, 104, 0.2);
    --value-error-bg: rgba(255, 23, 68, 0.15);
    --value-error-border: rgba(255, 23, 68, 0.3);
    --value-offline-bg: rgba(158, 158, 158, 0.15);
    --modal-overlay-bg: rgba(26, 29, 33, 0.9);

    /* ===== BUTTONS ===== */
    --btn-info-bg: #0dcaf0;
    --btn-bootstrap-primary: #0d6efd;

    /* ===== LEGACY ALIASES ===== */
    --primary-color: var(--omac-orange);
    --primary-dark: var(--omac-orange-hover);
    --primary-navy: var(--omac-navy);
    --primary-gradient: var(--gradient-primary);
    --header-gradient: var(--gradient-header);
    --accent-gradient: var(--gradient-accent);

    --success-color: var(--color-success);
    --danger-color: var(--color-danger);
    --warning-color: var(--color-warning);
    --info-color: var(--color-info);

    /* Shell aliases */
    --shell-bg: var(--body-bg);
    --shell-surface: var(--surface-bg);
    --shell-surface-alt: var(--surface-muted);
    --shell-surface-header: var(--surface-header);
    --shell-border: var(--border-subtle);
    --shell-text: var(--text-primary);
    --shell-text-secondary: var(--text-secondary);
    --shell-text-muted: var(--text-muted);
    --shell-input-bg: var(--surface-bg);
    --shell-input-disabled: var(--surface-disabled);
    --shell-table-stripe: var(--table-stripe);
    --shell-table-hover: var(--table-hover);
    --shell-shadow: var(--shadow-shell);

    /* Industrial aliases */
    --bg-primary: var(--body-bg);
    --bg-secondary: var(--surface-bg);
    --bg-tertiary: var(--surface-muted);
    --bg-panel: var(--surface-bg);
    --bg-input: var(--surface-bg);
    --accent-blue: var(--omac-orange);
    --accent-cyan: var(--omac-navy);
    --accent-purple: var(--omac-navy-light);
    --border-color: var(--border-subtle);
    --border-focus: var(--omac-orange);

    /* Typography */
    --font-mono: 'Consolas', 'Monaco', 'Courier New', monospace;
    --font-system: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Bootstrap overrides */
.btn-primary {
    --bs-btn-bg: var(--omac-orange);
    --bs-btn-border-color: var(--omac-orange);
    --bs-btn-hover-bg: var(--omac-orange-hover);
    --bs-btn-hover-border-color: var(--omac-orange-hover);
    --bs-btn-active-bg: var(--omac-orange-active);
    --bs-btn-active-border-color: var(--omac-orange-active);
    --bs-btn-disabled-bg: var(--omac-orange);
    --bs-btn-disabled-border-color: var(--omac-orange);
    --bs-btn-focus-shadow-rgb: 251, 72, 29;
}

.btn-outline-primary {
    --bs-btn-color: var(--omac-orange);
    --bs-btn-border-color: var(--omac-orange);
    --bs-btn-hover-bg: var(--omac-orange);
    --bs-btn-hover-border-color: var(--omac-orange);
    --bs-btn-active-bg: var(--omac-orange-hover);
    --bs-btn-active-border-color: var(--omac-orange-hover);
    --bs-btn-focus-shadow-rgb: 251, 72, 29;
}

.bg-primary {
    background: var(--header-gradient) !important;
}

.text-primary {
    color: var(--omac-orange) !important;
}

a {
    color: var(--omac-navy-light);
}

a:hover {
    color: var(--omac-orange);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--omac-orange);
    box-shadow: 0 0 0 0.2rem var(--focus-ring);
}

/* App shell — fixed sidebar + main content */
:root {
    --sidebar-width: 272px;
    --sidebar-icon-size: 2rem;
    --sidebar-nav-radius: 0.5rem;
}

.sidebar-toggle {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1040;
    width: 2.75rem;
    height: 2.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 1px solid rgba(251, 72, 29, 0.5);
    border-radius: 0.625rem;
    background: var(--header-gradient);
    color: var(--text-on-dark);
    font-size: 1.35rem;
    line-height: 1;
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255, 255, 255, 0.06) inset;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.sidebar-toggle[hidden] {
    display: none !important;
}

.sidebar-toggle:hover {
    color: var(--text-on-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-xl);
}

.sidebar-toggle:focus-visible {
    outline: 2px solid var(--omac-orange);
    outline-offset: 2px;
}

@media (max-width: 991.98px) {
    .app-sidebar {
        transform: translateX(-100%);
        box-shadow: var(--shadow-xl);
    }

    body:not(.sidebar-collapsed) .app-sidebar {
        transform: translateX(0);
    }

    .scada-theme .dashboard,
    .scada-theme .config-layout,
    .scada-theme .content-section,
    .scada-theme .controls-section {
        padding-top: 4.25rem;
    }
}

.sidebar-header,
.sidebar-nav,
.sidebar-auth {
    position: relative;
    z-index: 1;
}

.sidebar-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 1.15rem 0.85rem 1rem 1.1rem;
    border-bottom: 1px solid var(--border-subtle);
    background: linear-gradient(180deg, var(--surface-bg) 0%, var(--surface-muted) 100%);
    box-shadow: 0 2px 12px rgba(20, 37, 67, 0.1);
}

.sidebar-header::after {
    content: '';
    position: absolute;
    left: 1.1rem;
    right: 0.85rem;
    bottom: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--omac-orange) 0%, transparent 100%);
    opacity: 0.75;
    pointer-events: none;
}

.sidebar-close-btn {
    flex-shrink: 0;
    width: 2rem;
    height: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 1px solid var(--border-subtle);
    border-radius: 0.375rem;
    background: var(--surface-bg);
    color: var(--omac-navy);
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.sidebar-close-btn:hover {
    background: var(--accent-subtle-bg);
    border-color: var(--omac-orange);
    color: var(--omac-orange);
}

.sidebar-close-btn:focus-visible {
    outline: 2px solid var(--omac-orange);
    outline-offset: 2px;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
    padding: 0;
    color: var(--omac-navy);
    text-decoration: none;
    border-bottom: none;
    position: relative;
    z-index: 1;
    transition: opacity 0.2s ease;
}

.sidebar-brand:hover {
    color: var(--omac-navy);
    opacity: 0.88;
}

.sidebar-brand .brand-text,
.navbar-brand .brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.brand-name,
.navbar-brand .brand-name {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.brand-accent,
.navbar-brand .brand-accent,
.system-title .title-accent {
    color: var(--omac-orange);
}

.brand-tagline,
.navbar-brand .brand-tagline {
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-on-dark-muted);
    margin-top: 2px;
}

.sidebar-brand .brand-tagline {
    color: var(--omac-gray);
}

.app-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    z-index: 1030;
    display: flex;
    flex-direction: column;
    background: var(--header-gradient);
    border-right: 1px solid rgba(251, 72, 29, 0.35);
    box-shadow: 4px 0 24px rgba(13, 26, 45, 0.35);
    color: var(--text-on-dark);
    overflow: hidden;
    transform: translateX(0);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-sidebar::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 120% 80% at 0% 0%, rgba(251, 72, 29, 0.08) 0%, transparent 55%),
        radial-gradient(ellipse 80% 50% at 100% 100%, rgba(255, 255, 255, 0.04) 0%, transparent 50%);
    pointer-events: none;
}

.sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1025;
    background: rgba(20, 37, 67, 0.45);
}

.sidebar-backdrop[hidden] {
    display: none !important;
}

body.sidebar-collapsed .app-sidebar {
    transform: translateX(-100%);
}

@media (min-width: 992px) {
    body.scada-theme:not(.sidebar-collapsed) {
        padding-left: var(--sidebar-width);
    }

    body.scada-theme {
        transition: padding-left 0.3s ease;
    }

    body.sidebar-collapsed .app-sidebar {
        transform: translateX(-100%);
    }
}

@media (max-width: 991.98px) {
    body:not(.sidebar-collapsed) .sidebar-backdrop {
        display: block !important;
    }
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0.85rem 0.65rem 1rem;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

.sidebar-nav::-webkit-scrollbar {
    width: 5px;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.18);
    border-radius: 99px;
}

.sidebar-nav::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.28);
}

.sidebar-nav-label {
    margin: 0 0 0.5rem;
    padding: 0 0.85rem;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
}

.app-sidebar .navbar-nav {
    gap: 0.2rem;
}

.app-sidebar .navbar-nav .nav-link,
.sidebar-auth .nav-link {
    position: relative;
    color: var(--text-on-dark-90) !important;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.62rem 0.75rem;
    border-radius: var(--sidebar-nav-radius);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border: 1px solid transparent;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.nav-link-icon {
    flex-shrink: 0;
    width: var(--sidebar-icon-size);
    height: var(--sidebar-icon-size);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.4rem;
    background: rgba(255, 255, 255, 0.07);
    color: rgba(255, 255, 255, 0.85);
    font-size: 1rem;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-link-text {
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-chevron {
    font-size: 0.7rem;
    opacity: 0.55;
    transition: transform 0.25s ease, opacity 0.2s ease;
}

.nav-group-toggle[aria-expanded="true"] .nav-chevron {
    transform: rotate(180deg);
    opacity: 0.85;
}

.app-sidebar .navbar-nav .nav-link:hover,
.sidebar-auth .nav-link:hover {
    color: var(--text-on-dark) !important;
    background-color: var(--accent-nav-hover);
    border-color: rgba(255, 255, 255, 0.06);
}

.app-sidebar .navbar-nav .nav-link:hover .nav-link-icon,
.sidebar-auth .nav-link:hover .nav-link-icon {
    background: rgba(251, 72, 29, 0.2);
    color: var(--text-on-dark);
}

.app-sidebar .navbar-nav .nav-link.active,
.sidebar-auth .nav-link.active {
    color: var(--text-on-dark) !important;
    background: var(--accent-nav-active);
    border-color: rgba(251, 72, 29, 0.25);
    box-shadow: inset 3px 0 0 var(--omac-orange);
}

.app-sidebar .navbar-nav .nav-link.active .nav-link-icon,
.sidebar-auth .nav-link.active .nav-link-icon {
    background: rgba(251, 72, 29, 0.35);
    color: var(--text-on-dark);
}

/* Inline submenu (Modbus group) */
.nav-submenu {
    list-style: none;
    margin: 0.15rem 0 0.35rem;
    padding: 0.25rem 0 0.25rem 0.5rem;
    border-left: 2px solid rgba(255, 255, 255, 0.1);
    margin-left: calc(0.75rem + var(--sidebar-icon-size) / 2);
}

.nav-submenu .nav-sublink {
    font-size: 0.85rem;
    padding: 0.5rem 0.65rem;
}

.nav-submenu .nav-sublink .nav-link-icon {
    width: 1.65rem;
    height: 1.65rem;
    font-size: 0.85rem;
    background: rgba(255, 255, 255, 0.05);
}

.nav-submenu .nav-sublink.active {
    box-shadow: inset 2px 0 0 var(--omac-orange);
}

.sidebar-auth {
    position: relative;
    z-index: 1;
    padding: 0.85rem 0.65rem 1.25rem;
    border-top: 1px solid var(--nav-toggler-border);
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.12) 0%, transparent 100%);
}

.sidebar-user-row {
    display: flex;
    align-items: stretch;
    gap: 0.45rem;
    position: relative;
    width: 100%;
}

.sidebar-user-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    margin-bottom: 0.5rem;
    padding: 0.65rem 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--sidebar-nav-radius);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-on-dark);
    text-align: left;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.sidebar-user-row .sidebar-user-card {
    flex: 1;
    min-width: 0;
    margin-bottom: 0;
}

a.sidebar-user-card {
    text-decoration: none;
}

.sidebar-user-card.active,
a.sidebar-user-card.active {
    background: rgba(251, 72, 29, 0.14);
    border-color: rgba(251, 72, 29, 0.45);
}

.sidebar-user-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(251, 72, 29, 0.35);
}

.sidebar-user-card:focus-visible {
    outline: 2px solid var(--omac-orange);
    outline-offset: 2px;
}

.sidebar-user-avatar {
    flex-shrink: 0;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    background: var(--gradient-accent);
    color: var(--text-on-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.sidebar-user-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.sidebar-user-name {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-on-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-badge {
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
}

.sidebar-user-badge-sep {
    opacity: 0.5;
    margin: 0 0.15rem;
}

.sidebar-user-chevron {
    flex-shrink: 0;
    font-size: 0.75rem;
    opacity: 0.4;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.sidebar-user-card:hover .sidebar-user-chevron {
    opacity: 0.75;
    transform: translateX(2px);
}

/* User actions & 3-dot dropdown menu */
.sidebar-user-actions {
    position: relative;
    display: flex;
}

.sidebar-user-menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 100%;
    min-height: 44px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--sidebar-nav-radius);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-on-dark);
    font-size: 1.1rem;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.sidebar-user-menu-btn:hover,
.sidebar-user-menu-btn[aria-expanded="true"] {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(251, 72, 29, 0.45);
    color: #fff;
}

.sidebar-user-menu-btn:focus-visible {
    outline: 2px solid var(--omac-orange);
    outline-offset: 2px;
}

.sidebar-user-dropdown {
    background: #14223d !important;
    border: 1px solid rgba(255, 255, 255, 0.15) !important;
    border-radius: 8px;
    padding: 0.4rem;
    min-width: 175px;
    margin-bottom: 0.5rem !important;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
    z-index: 1060;
}

.sidebar-user-actions.dropup .sidebar-user-dropdown {
    top: auto !important;
    bottom: 100% !important;
    right: 0 !important;
    left: auto !important;
    transform: none !important;
}

.sidebar-user-dropdown .dropdown-item {
    display: flex;
    align-items: center;
    padding: 0.55rem 0.85rem;
    font-size: 0.86rem;
    color: rgba(255, 255, 255, 0.85);
    border-radius: 6px;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.sidebar-user-dropdown .dropdown-item:hover,
.sidebar-user-dropdown .dropdown-item:focus {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.sidebar-user-dropdown .dropdown-item.active {
    background-color: rgba(251, 72, 29, 0.18);
    color: #ff914d;
    font-weight: 600;
}

.sidebar-user-dropdown .dropdown-divider {
    border-color: rgba(255, 255, 255, 0.12);
    margin: 0.35rem 0;
}

.sidebar-user-dropdown .dropdown-item.text-danger {
    color: #ff7b72 !important;
}

.sidebar-user-dropdown .dropdown-item.text-danger:hover {
    background-color: rgba(220, 53, 69, 0.2) !important;
    color: #ffa198 !important;
}

.sidebar-logout-form {
    margin: 0;
}

.sidebar-logout-btn {
    width: 100%;
    border: none;
    background: transparent;
    cursor: pointer;
    text-align: left;
    color: rgba(255, 180, 170, 0.9) !important;
}

.sidebar-logout-btn:hover {
    color: #ffb4aa !important;
    background-color: rgba(220, 53, 69, 0.15) !important;
    border-color: rgba(220, 53, 69, 0.2) !important;
}

.sidebar-logout-btn:hover .nav-link-icon {
    background: rgba(220, 53, 69, 0.25);
    color: #ffb4aa;
}

.sidebar-auth .nav-link.active {
    color: var(--text-on-dark) !important;
    background-color: var(--accent-nav-active);
    box-shadow: inset 3px 0 0 var(--omac-orange);
}

/* Card headers on admin pages */
.card-header.bg-primary {
    background: var(--header-gradient) !important;
    border-bottom: 2px solid var(--omac-orange);
}

/* Page headings */
.page-title-accent {
    color: var(--omac-orange);
}

/* ============================================================
   Unified app shell — all pages use body.scada-theme (light)
   ============================================================ */

body.scada-theme {
    background-color: var(--shell-bg);
    color: var(--shell-text);
    min-height: 100vh;
}

.scada-theme .controls-section {
    background: var(--shell-surface);
    border-bottom: 1px solid var(--shell-border);
    color: var(--shell-text);
}

.scada-theme .controls-section label,
.scada-theme .controls-section .form-label {
    color: var(--shell-text-secondary);
}

.scada-theme .content-section {
    background: var(--shell-bg);
    color: var(--shell-text);
    min-height: calc(100vh - 140px);
}

.scada-theme h1,
.scada-theme h2,
.scada-theme h3,
.scada-theme h4,
.scada-theme h5,
.scada-theme h6,
.scada-theme .h1,
.scada-theme .h2,
.scada-theme .h3,
.scada-theme .h4,
.scada-theme .h5,
.scada-theme .h6 {
    color: var(--shell-text);
}

.scada-theme .text-muted {
    color: var(--shell-text-muted) !important;
}

.scada-theme a:not(.nav-link):not(.navbar-brand):not(.sidebar-brand):not(.sidebar-user-card):not(.btn):not(.page-link):not(.paginate_button) {
    color: var(--omac-navy-light);
}

.scada-theme a:not(.nav-link):not(.navbar-brand):not(.sidebar-brand):not(.sidebar-user-card):not(.btn):hover {
    color: var(--omac-orange);
}

.scada-theme .card {
    background: var(--shell-surface);
    border-color: var(--shell-border);
    color: var(--shell-text);
}

.scada-theme .card-header {
    background: var(--shell-surface-header);
    border-bottom-color: var(--shell-border);
    color: var(--shell-text);
}

.scada-theme .card-footer {
    background: var(--shell-surface-alt);
    border-top-color: var(--shell-border);
}

.scada-theme .form-control,
.scada-theme .form-select {
    background: var(--shell-input-bg);
    border-color: var(--shell-border);
    color: var(--shell-text);
}

.scada-theme .form-control::placeholder {
    color: var(--text-dim);
}

.scada-theme .form-control:disabled,
.scada-theme .form-select:disabled {
    background: var(--shell-input-disabled);
    color: var(--shell-text-muted);
}

.scada-theme .input-group-text {
    background: var(--shell-surface-alt);
    border-color: var(--shell-border);
    color: var(--shell-text-secondary);
}

.scada-theme .table {
    color: var(--shell-text);
    --bs-table-bg: transparent;
    --bs-table-color: var(--shell-text);
    --bs-table-border-color: var(--shell-border);
    --bs-table-striped-bg: var(--shell-table-stripe);
    --bs-table-hover-bg: var(--shell-table-hover);
}

.scada-theme .table thead th {
    background: var(--shell-surface-header) !important;
    color: var(--shell-text) !important;
    border-bottom-color: var(--omac-orange) !important;
}

.scada-theme .modal-content {
    background: var(--shell-surface);
    border-color: var(--shell-border);
    color: var(--shell-text);
}

.scada-theme .modal-header {
    background: var(--shell-surface-header);
    border-bottom: 2px solid var(--omac-orange);
}

.scada-theme .modal-footer {
    background: var(--shell-surface-alt);
    border-top-color: var(--shell-border);
}

.scada-theme .btn-close {
    filter: none;
}

.scada-theme .dropdown-menu {
    background: var(--shell-surface);
    border-color: var(--shell-border);
    box-shadow: var(--shell-shadow);
}

.scada-theme .dropdown-item {
    color: var(--shell-text);
}

.scada-theme .dropdown-item:hover,
.scada-theme .dropdown-item:focus {
    background: var(--accent-hover-bg);
    color: var(--omac-navy);
}

.scada-theme .config-section {
    background: var(--shell-surface-alt);
    border: 1px solid var(--shell-border);
}

.scada-theme .config-section h5 {
    color: var(--shell-text);
    border-bottom-color: var(--shell-border);
}

.scada-theme .config-editor {
    background: var(--shell-input-bg);
    border-color: var(--shell-border);
    color: var(--shell-text);
}

.scada-theme .backup-info {
    background: var(--accent-subtle-bg);
    color: var(--shell-text);
}

.scada-theme #tablePaginationControls .page-link {
    background: var(--shell-surface);
    border-color: var(--shell-border);
    color: var(--shell-text);
}

.scada-theme #tablePaginationControls .page-link:hover:not(:disabled) {
    background: var(--shell-surface-alt);
    border-color: var(--omac-orange);
    color: var(--omac-navy);
}

.scada-theme #tablePaginationControls .page-item.disabled .page-link {
    opacity: 0.5;
}

.scada-theme #tablePaginationControls .page-item.active .page-link {
    background: var(--omac-orange);
    border-color: var(--omac-orange);
    color: var(--text-on-dark);
}

.scada-theme #tablePaginationControls .page-ellipsis {
    pointer-events: none;
    letter-spacing: 0.1em;
}

.scada-theme .dash-panel {
    background: var(--shell-surface);
    border-color: var(--shell-border);
}

.scada-theme .dash-btn {
    background: var(--shell-surface-alt);
    border-color: var(--shell-border);
    color: var(--shell-text);
}

.scada-theme .dash-btn--primary {
    background: var(--omac-orange);
    border-color: var(--omac-orange);
    color: var(--text-on-dark);
}

.scada-theme .device-tile {
    background: var(--shell-surface-alt);
    border-color: var(--shell-border);
}

.scada-theme .view-toggle-btn.active {
    background-color: var(--omac-orange);
    color: var(--text-on-dark);
    border-color: var(--omac-orange);
}

.scada-theme .connection-card {
    background: var(--shell-surface);
    border-color: var(--shell-border);
    color: var(--shell-text);
}

.scada-theme .connection-card .card-header {
    background: var(--shell-surface-header);
}

.scada-theme #emptyState h3 {
    color: var(--shell-text);
}

.scada-theme .value-display {
    background: var(--shell-surface-alt);
    border: 1px solid var(--shell-border);
    color: var(--shell-text);
}

.scada-theme .table tbody tr.writable {
    background-color: var(--accent-subtle-bg);
}

.scada-theme .table tbody tr.writable:hover {
    background-color: var(--accent-medium-bg);
}

.scada-theme .table tbody tr:hover {
    background-color: var(--shell-table-hover);
}

/* Alerts */
.scada-theme .alert {
    border: 1px solid transparent;
}

.scada-theme .alert-danger {
    background: var(--color-danger-bg);
    border-color: var(--color-danger-border);
    color: var(--color-danger-text);
}

.scada-theme .alert-success {
    background: var(--color-success-bg);
    border-color: var(--color-success-border);
    color: var(--color-success-text);
}

.scada-theme .alert-warning {
    background: var(--color-warning-bg);
    border-color: var(--color-warning-border);
    color: var(--color-warning-text);
}

.scada-theme .alert-info {
    background: var(--color-info-bg);
    border-color: var(--color-info-border);
    color: var(--color-info-text);
}

/* Badges */
.scada-theme .badge.bg-secondary {
    background-color: var(--color-secondary) !important;
    color: var(--text-on-dark);
}

.scada-theme .badge.bg-info {
    background-color: var(--btn-info-bg) !important;
    color: var(--text-black);
}

.scada-theme .badge.bg-success {
    background-color: var(--color-success-dark) !important;
    color: var(--text-on-dark);
}

.scada-theme .badge.bg-danger {
    background-color: var(--color-danger) !important;
    color: var(--text-on-dark);
}

/* Pagination */
.scada-theme .pagination {
    --bs-pagination-color: var(--shell-text);
    --bs-pagination-bg: var(--shell-surface);
    --bs-pagination-border-color: var(--shell-border);
    --bs-pagination-hover-color: var(--omac-navy);
    --bs-pagination-hover-bg: var(--shell-surface-alt);
    --bs-pagination-hover-border-color: var(--omac-orange);
    --bs-pagination-focus-color: var(--omac-navy);
    --bs-pagination-focus-bg: var(--shell-surface-alt);
    --bs-pagination-focus-box-shadow: 0 0 0 0.2rem var(--focus-ring);
    --bs-pagination-active-color: var(--text-on-dark);
    --bs-pagination-active-bg: var(--omac-orange);
    --bs-pagination-active-border-color: var(--omac-orange);
    --bs-pagination-disabled-color: var(--shell-text-muted);
    --bs-pagination-disabled-bg: var(--shell-input-disabled);
    --bs-pagination-disabled-border-color: var(--shell-border);
}

.scada-theme .page-link {
    color: var(--shell-text);
}

/* Forms */
.scada-theme .form-text {
    color: var(--shell-text-muted);
}

.scada-theme .form-check-label {
    color: var(--shell-text);
}

.scada-theme .form-check-input {
    background-color: var(--shell-input-bg);
    border-color: var(--shell-border);
}

.scada-theme .form-check-input:checked {
    background-color: var(--omac-orange);
    border-color: var(--omac-orange);
}

.scada-theme .form-switch .form-check-input {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%236c757d'/%3e%3c/svg%3e");
}

.scada-theme .form-switch .form-check-input:checked {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%23fff'/%3e%3c/svg%3e");
}

/* Utility backgrounds */
.scada-theme .bg-light,
.scada-theme .table-light {
    --bs-table-bg: var(--shell-surface-alt);
    --bs-table-color: var(--shell-text);
    background-color: var(--shell-surface-alt) !important;
    color: var(--shell-text) !important;
}

.scada-theme .table-light th,
.scada-theme .table-light td {
    background-color: var(--shell-surface-alt) !important;
    color: var(--shell-text) !important;
    border-color: var(--shell-border) !important;
}

/* Code */
.scada-theme code {
    background: var(--shell-surface-alt);
    color: var(--omac-orange-hover);
    padding: 0.15rem 0.4rem;
    border-radius: 0.25rem;
    border: 1px solid var(--shell-border);
}

/* Progress */
.scada-theme .progress {
    background-color: var(--shell-surface-alt);
    border: 1px solid var(--shell-border);
}

.scada-theme .progress-bar {
    background-color: var(--omac-orange);
}

.scada-theme .progress-text {
    color: var(--shell-text-muted);
}

/* Buttons */
.scada-theme .btn-secondary {
    --bs-btn-bg: var(--color-secondary);
    --bs-btn-border-color: var(--color-secondary);
    --bs-btn-color: var(--text-on-dark);
    --bs-btn-hover-bg: var(--color-secondary-dark);
    --bs-btn-hover-border-color: var(--color-secondary-darker);
    --bs-btn-hover-color: var(--text-on-dark);
}

.scada-theme .btn-outline-secondary {
    --bs-btn-color: var(--shell-text-secondary);
    --bs-btn-border-color: var(--shell-border);
    --bs-btn-hover-bg: var(--shell-surface-alt);
    --bs-btn-hover-border-color: var(--text-dim);
    --bs-btn-hover-color: var(--shell-text);
}

.scada-theme .btn-success {
    --bs-btn-bg: var(--color-success-dark);
    --bs-btn-border-color: var(--color-success-dark);
}

.scada-theme .btn-warning {
    --bs-btn-color: var(--text-body);
}

/* Validation (config page) */
.scada-theme .validation-item.error {
    background-color: var(--color-danger-bg);
    color: var(--color-danger-text);
}

.scada-theme .validation-item.warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning-text);
}

.scada-theme .validation-item.success {
    background-color: var(--color-success-bg);
    color: var(--color-success-text);
}

.scada-theme .validation-summary.valid {
    background-color: var(--color-success-bg);
    border-color: var(--color-success-border);
    color: var(--color-success-text);
}

.scada-theme .validation-summary.invalid {
    background-color: var(--color-danger-bg);
    border-color: var(--color-danger-border);
    color: var(--color-danger-text);
}

/* Connection cards (config) */
.scada-theme .connection-card-title {
    color: var(--shell-text);
}

.scada-theme .connection-detail-label {
    color: var(--shell-text-muted);
}

.scada-theme .connection-detail-value {
    color: var(--shell-text);
}

.scada-theme .connection-card-header {
    border-bottom-color: var(--shell-border);
}

/* Loading overlay (config editor) */
.scada-theme .loading-overlay {
    background: var(--surface-overlay-shell);
}

.scada-theme .loading-text {
    color: var(--shell-text);
}

/* Table pagination bar (home dashboard) */
.scada-theme #tablePaginationControls {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--shell-border);
    background: var(--shell-surface-alt);
}

.scada-theme #tablePaginationControls .form-label,
.scada-theme #tablePaginationControls .form-select {
    color: var(--shell-text);
}

/* Page shell */
.scada-theme .page-header {
    margin-bottom: 1.5rem;
}

.scada-theme .page-header .page-subtitle {
    color: var(--shell-text-muted);
    font-size: 0.9rem;
}

.scada-theme .controls-section {
    padding: 1rem 0;
}

.scada-theme .content-section {
    padding: 1.5rem 0 2.5rem;
}

.scada-theme .card.shadow-sm {
    box-shadow: var(--shell-shadow) !important;
}

.scada-theme hr {
    border-color: var(--shell-border);
    opacity: 1;
}

/* Toast */
.scada-theme .toast {
    background: var(--shell-surface);
    border-color: var(--shell-border);
    color: var(--shell-text);
    box-shadow: var(--shell-shadow);
}

.scada-theme .toast-header {
    background: var(--shell-surface-header);
    border-bottom-color: var(--shell-border);
    color: var(--shell-text);
}

/* Variable highlight (reports transform help) */
.scada-theme .variable-highlight {
    background-color: var(--color-warning-bg);
    color: var(--color-warning-text);
    border-color: var(--color-warning-border);
}