/* ==========================================================================
   desti-IT Brand Layer
   Quelle: https://www.desti-it.de  (Cabinet Grotesk + Satoshi, Navy + Teal)
   Wird NACH Bootstrap geladen und überschreibt dessen Defaults gezielt.
   ========================================================================== */

/* --- Fonts (kostenlos via Fontshare-CDN, kein API-Key) --- */
@import url('https://api.fontshare.com/v2/css?f[]=cabinet-grotesk@500,700,800&f[]=satoshi@300,400,500,700&display=swap');

/* --- Design Tokens --- */
:root {
    /* Surfaces */
    --brand-bg:              #F8F9FA;
    --brand-surface:         #FFFFFF;
    --brand-surface-2:       #F1F3F5;
    --brand-surface-offset:  #E9ECEF;
    --brand-border:          #DEE2E6;
    --brand-divider:         #E9ECEF;

    /* Text */
    --brand-text:            #1A1D23;
    --brand-text-muted:      #6C757D;
    --brand-text-faint:      #ADB5BD;

    /* Brand */
    --brand-primary:         #1B2A4A;   /* Navy (Header, Headings) */
    --brand-primary-hover:   #253A66;
    --brand-primary-light:   #E8EDF5;
    --brand-accent:          #0D9488;   /* Teal (CTA, Links) */
    --brand-accent-hover:    #0F766E;
    --brand-accent-light:    #CCFBF1;

    /* Status */
    --brand-error:           #DC2626;
    --brand-success:         #16A34A;
    --brand-warning:         #D97706;

    /* Schatten */
    --brand-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --brand-shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --brand-shadow-lg: 0 12px 32px rgba(0,0,0,0.12);

    /* Fonts */
    --brand-font-display: 'Cabinet Grotesk', 'Helvetica Neue', system-ui, sans-serif;
    --brand-font-body:    'Satoshi', 'Inter', system-ui, sans-serif;

    /* Bootstrap-Variablen mappen */
    --bs-body-bg:        var(--brand-bg);
    --bs-body-color:     var(--brand-text);
    --bs-border-color:   var(--brand-border);
    --bs-primary:        #0D9488;
    --bs-primary-rgb:    13, 148, 136;
    --bs-link-color:     #0D9488;
    --bs-link-color-rgb: 13, 148, 136;
    --bs-link-hover-color: #0F766E;
    --bs-body-font-family: var(--brand-font-body);
}

/* ==========================================================================
   Dark Mode (1:1 von desti-it.de übernommen, via [data-bs-theme="dark"])
   Bootstrap 5.3 schaltet eigene Komponenten via data-bs-theme automatisch um;
   wir überschreiben hier zusätzlich unsere Brand-Tokens.
   ========================================================================== */
[data-bs-theme="dark"] {
    --brand-bg:              #0F1117;
    --brand-surface:         #1A1D27;
    --brand-surface-2:       #22252F;
    --brand-surface-offset:  #2A2D37;
    --brand-border:          #343840;
    --brand-divider:         #2A2D37;

    --brand-text:            #E4E5E9;
    --brand-text-muted:      #9CA3AF;
    --brand-text-faint:      #6B7280;

    --brand-primary:         #94A8D0;
    --brand-primary-hover:   #B0C0E0;
    --brand-primary-light:   #1E2640;
    --brand-accent:          #2DD4BF;
    --brand-accent-hover:    #5EEAD4;
    --brand-accent-light:    #0D3D38;

    --brand-error:           #F87171;
    --brand-success:         #4ADE80;
    --brand-warning:         #FBBF24;

    --brand-shadow-sm: 0 1px 2px rgba(0,0,0,0.30);
    --brand-shadow-md: 0 4px 12px rgba(0,0,0,0.45);
    --brand-shadow-lg: 0 12px 32px rgba(0,0,0,0.55);

    /* Bootstrap-Mapping für Dark */
    --bs-body-bg:          var(--brand-bg);
    --bs-body-color:       var(--brand-text);
    --bs-border-color:     var(--brand-border);
    --bs-primary:          #2DD4BF;
    --bs-primary-rgb:      45, 212, 191;
    --bs-link-color:       #2DD4BF;
    --bs-link-color-rgb:   45, 212, 191;
    --bs-link-hover-color: #5EEAD4;
    --bs-tertiary-bg:      var(--brand-surface-2);
    --bs-secondary-bg:     var(--brand-surface-2);
    --bs-emphasis-color:   var(--brand-text);
}

/* Logo-Switching: in Markup beide Versionen, CSS blendet die richtige ein */
.brand-logo-img.logo-dark  { display: block; }
.brand-logo-img.logo-light { display: none; }
[data-bs-theme="dark"] .brand-logo-img.logo-dark  { display: none; }
[data-bs-theme="dark"] .brand-logo-img.logo-light { display: block; }

/* --- Body & Typografie --- */
body {
    font-family: var(--brand-font-body);
    background: var(--brand-bg);
    color: var(--brand-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-family: var(--brand-font-display);
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--brand-primary);
}
.text-muted { color: var(--brand-text-muted) !important; }

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

code, pre, kbd, samp { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

/* --- Buttons (Teal CTA wie auf desti-it.de) --- */
.btn {
    border-radius: 0.5rem;
    font-weight: 600;
    transition: transform .18s cubic-bezier(.16,1,.3,1),
                box-shadow .18s cubic-bezier(.16,1,.3,1),
                background .18s,
                color .18s;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--brand-shadow-md); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background: var(--brand-accent);
    border-color: var(--brand-accent);
    color: #fff;
}
.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active,
.btn-primary.active {
    background: var(--brand-accent-hover) !important;
    border-color: var(--brand-accent-hover) !important;
    color: #fff !important;
}
.btn-outline-primary {
    color: var(--brand-accent);
    border-color: var(--brand-accent);
}
.btn-outline-primary:hover {
    background: var(--brand-accent);
    border-color: var(--brand-accent);
    color: #fff;
}
.btn-outline-secondary {
    color: var(--brand-text);
    border-color: var(--brand-border);
}
.btn-outline-secondary:hover {
    background: var(--brand-surface-2);
    border-color: var(--brand-text-faint);
    color: var(--brand-text);
}
.btn-dark {
    background: var(--brand-primary);
    border-color: var(--brand-primary);
}
.btn-dark:hover, .btn-dark:focus {
    background: var(--brand-primary-hover);
    border-color: var(--brand-primary-hover);
}

/* --- Forms --- */
.form-control, .form-select {
    border-radius: 0.5rem;
    border-color: var(--brand-border);
}
.form-control:focus, .form-select:focus {
    border-color: var(--brand-accent);
    box-shadow: 0 0 0 .2rem rgba(13, 148, 136, .15);
}
.form-label { font-weight: 500; color: var(--brand-text); }

/* --- Cards & Tabellen --- */
.card {
    border: 1px solid var(--brand-border) !important;
    border-radius: 0.75rem;
    background: var(--brand-surface);
    box-shadow: var(--brand-shadow-sm);
}
.card .card-header { background: var(--brand-surface-2); border-bottom: 1px solid var(--brand-border); }
hr { color: var(--brand-divider); opacity: 1; }

.table { color: var(--brand-text); }
.table > :not(caption) > * > * { border-bottom-color: var(--brand-divider); }
.table thead th {
    color: var(--brand-text-muted);
    font-weight: 600;
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .03em;
    border-bottom: 1px solid var(--brand-border);
}

/* --- Badges (Status/Priorität) --- */
.badge { font-weight: 600; letter-spacing: .02em; }
.text-bg-primary { background: var(--brand-accent) !important; }
.text-bg-info    { background: #0EA5E9 !important; }
.text-bg-warning { background: var(--brand-warning) !important; color: #fff !important; }
.text-bg-secondary { background: var(--brand-text-muted) !important; }
.text-bg-success { background: var(--brand-success) !important; }
.text-bg-danger  { background: var(--brand-error) !important; }

/* --- Alerts --- */
.alert { border-radius: 0.5rem; border: 1px solid transparent; }
.alert-success { background: #ECFDF5; border-color: #A7F3D0; color: #065F46; }
.alert-danger  { background: #FEF2F2; border-color: #FECACA; color: #991B1B; }
.alert-info    { background: #ECFEFF; border-color: #A5F3FC; color: #155E75; }
.alert-warning { background: #FFFBEB; border-color: #FDE68A; color: #92400E; }

/* --- Top-Navigation (Customer-Layout) --- */
.brand-topbar {
    background: var(--brand-surface);
    border-bottom: 1px solid var(--brand-border);
    backdrop-filter: blur(16px);
    position: sticky;
    top: 0;
    z-index: 1030;
}
.brand-topbar .navbar-brand img { height: 36px; width: auto; }
.brand-topbar .nav-link {
    color: var(--brand-text-muted) !important;
    font-weight: 500;
    font-size: .95rem;
    position: relative;
    padding-top: .75rem;
    padding-bottom: .75rem;
}
.brand-topbar .nav-link:hover { color: var(--brand-text) !important; }
.brand-topbar .nav-link.active { color: var(--brand-primary) !important; font-weight: 600; }
.brand-topbar .nav-link.active::after,
.brand-topbar .nav-link:hover::after {
    content: '';
    position: absolute;
    left: .75rem; right: .75rem; bottom: .35rem;
    height: 2px;
    background: var(--brand-accent);
    border-radius: 2px;
}
.brand-topbar .nav-link:not(.active):hover::after { background: var(--brand-accent); opacity: .6; }

/* --- Sidebar (Admin-Layout) --- */
.brand-sidebar {
    min-height: 100vh;
    background: var(--brand-primary);
    color: #E4E7EE;
}
.brand-sidebar .brand-logo {
    padding: 1.1rem 1.25rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
    display: flex;
    align-items: center;
    gap: .65rem;
}
.brand-sidebar .brand-logo img { height: 32px; width: auto; }
.brand-sidebar .nav-link {
    color: #C8CDD8;
    border-radius: .5rem;
    margin: 2px 10px;
    padding: .55rem .85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: .55rem;
}
.brand-sidebar .nav-link i { font-size: 1.05rem; opacity: .85; }
.brand-sidebar .nav-link:hover { background: rgba(255,255,255,.06); color: #fff; }
.brand-sidebar .nav-link.active {
    background: var(--brand-accent);
    color: #fff;
    box-shadow: 0 4px 14px rgba(13,148,136,.35);
}
.brand-sidebar .nav-link.active i { opacity: 1; }
@media (max-width: 767.98px) {
    .brand-sidebar { min-height: auto; }
}

.brand-topbar-admin {
    background: var(--brand-surface);
    border-bottom: 1px solid var(--brand-border);
    padding: .85rem 1.25rem;
}
.brand-topbar-admin h1, .brand-topbar-admin .h5 {
    color: var(--brand-primary);
    margin: 0;
}

/* --- Login-Screens --- */
.brand-login-bg {
    min-height: 100vh;
    background:
        radial-gradient(1200px 600px at 80% -10%, rgba(13,148,136,.18), transparent 60%),
        radial-gradient(900px 600px at -10% 110%, rgba(27,42,74,.30), transparent 60%),
        linear-gradient(135deg, #0F1726 0%, #1B2A4A 60%, #14323F 100%);
    color: #E5E7EB;
}
.brand-login-card {
    background: var(--brand-surface);
    border: 1px solid var(--brand-border);
    border-radius: 1rem;
    box-shadow: 0 30px 80px rgba(0,0,0,.35);
}
.brand-login-card .brand-logo-wrap {
    display: flex; justify-content: center; margin-bottom: 1rem;
}
.brand-login-card .brand-logo-wrap img { height: 44px; width: auto; }

/* --- Ticket-Eintrag (überschreibt editor_assets-Defaults mit Brand-Farben) --- */
.ticket-entry { border-color: var(--brand-border); border-radius: .75rem; }
.ticket-entry .entry-header {
    background: var(--brand-surface-2);
    border-bottom-color: var(--brand-border);
    color: var(--brand-text);
}
.ticket-entry .entry-header .author { color: var(--brand-primary); }
.ticket-entry.entry-admin .entry-header { background: var(--brand-primary-light); }
.ticket-entry .entry-header .role-customer { background: var(--brand-accent-light); color: #064E3B; }
.ticket-entry .entry-header .role-admin    { background: #DBE3F4; color: var(--brand-primary); }
.ticket-entry .entry-body { color: var(--brand-text); }
.ticket-entry .entry-attachments { background: var(--brand-surface-2); border-top-color: var(--brand-border); }
.ticket-entry .entry-attachments a { color: var(--brand-accent); border-color: var(--brand-border); }
.ticket-entry .entry-attachments a:hover { background: var(--brand-accent-light); border-color: var(--brand-accent); }

/* --- Editor & Upload-Zone --- */
.editor-wrap { border-color: var(--brand-border); border-radius: .5rem; }
.editor-wrap .ql-toolbar.ql-snow { border-bottom-color: var(--brand-border); background: var(--brand-surface-2); border-radius: .5rem .5rem 0 0; }
.upload-zone { border-color: var(--brand-border); background: var(--brand-surface-2); border-radius: .5rem; }
.upload-zone:hover, .upload-zone.dragover { border-color: var(--brand-accent); background: var(--brand-accent-light); }

/* --- Footer --- */
.brand-footer {
    color: var(--brand-text-muted);
    font-size: .85rem;
    padding: 1.5rem 0;
    border-top: 1px solid var(--brand-border);
    margin-top: 3rem;
    background: var(--brand-surface);
}
.brand-footer a { color: var(--brand-text-muted); }
.brand-footer a:hover { color: var(--brand-accent); }

/* --- Focus visible (Brand-Farbe) --- */
:focus-visible {
    outline: 2px solid var(--brand-accent);
    outline-offset: 2px;
    border-radius: .25rem;
}

/* ==========================================================================
   Dark-Mode Komponenten-Feinschliff
   ========================================================================== */

/* Cards / Tabellen / Forms */
[data-bs-theme="dark"] .card {
    background: var(--brand-surface);
    border-color: var(--brand-border) !important;
    box-shadow: var(--brand-shadow-sm);
}
[data-bs-theme="dark"] .card .card-header { background: var(--brand-surface-2); border-bottom-color: var(--brand-border); }
[data-bs-theme="dark"] .table { color: var(--brand-text); --bs-table-bg: transparent; }
[data-bs-theme="dark"] .table > :not(caption) > * > * { border-bottom-color: var(--brand-divider); background-color: transparent; color: var(--brand-text); }
[data-bs-theme="dark"] .table thead th { color: var(--brand-text-muted); border-bottom-color: var(--brand-border); }
[data-bs-theme="dark"] .table-hover > tbody > tr:hover > * { background-color: var(--brand-surface-2); color: var(--brand-text); }

[data-bs-theme="dark"] .form-control,
[data-bs-theme="dark"] .form-select {
    background: var(--brand-surface-2);
    border-color: var(--brand-border);
    color: var(--brand-text);
}
[data-bs-theme="dark"] .form-control::placeholder { color: var(--brand-text-faint); }
[data-bs-theme="dark"] .form-control:focus,
[data-bs-theme="dark"] .form-select:focus {
    background: var(--brand-surface-2);
    border-color: var(--brand-accent);
    color: var(--brand-text);
    box-shadow: 0 0 0 .2rem rgba(45, 212, 191, .15);
}
[data-bs-theme="dark"] .form-label { color: var(--brand-text); }
[data-bs-theme="dark"] .form-control:disabled,
[data-bs-theme="dark"] .form-control[readonly] { background: var(--brand-surface-offset); color: var(--brand-text-muted); }

/* Buttons */
[data-bs-theme="dark"] .btn-primary {
    background: var(--brand-accent);
    border-color: var(--brand-accent);
    color: #06231F;
}
[data-bs-theme="dark"] .btn-primary:hover,
[data-bs-theme="dark"] .btn-primary:focus,
[data-bs-theme="dark"] .btn-primary:active {
    background: var(--brand-accent-hover) !important;
    border-color: var(--brand-accent-hover) !important;
    color: #06231F !important;
}
[data-bs-theme="dark"] .btn-outline-secondary {
    color: var(--brand-text);
    border-color: var(--brand-border);
}
[data-bs-theme="dark"] .btn-outline-secondary:hover {
    background: var(--brand-surface-2);
    border-color: var(--brand-text-faint);
    color: var(--brand-text);
}

/* Alerts (gedämpfte Brand-Töne) */
[data-bs-theme="dark"] .alert-success { background: rgba(74, 222, 128, .10); border-color: rgba(74, 222, 128, .35); color: #BBF7D0; }
[data-bs-theme="dark"] .alert-danger  { background: rgba(248, 113, 113, .10); border-color: rgba(248, 113, 113, .35); color: #FECACA; }
[data-bs-theme="dark"] .alert-info    { background: rgba(45, 212, 191, .10); border-color: rgba(45, 212, 191, .35); color: #A7F3D0; }
[data-bs-theme="dark"] .alert-warning { background: rgba(251, 191, 36, .10); border-color: rgba(251, 191, 36, .35); color: #FDE68A; }

/* Badges (zurückhaltender im Dark-Mode) */
[data-bs-theme="dark"] .text-bg-light { background: var(--brand-surface-2) !important; color: var(--brand-text) !important; border-color: var(--brand-border) !important; }
[data-bs-theme="dark"] .text-bg-warning { background: #B45309 !important; color: #fff !important; }
[data-bs-theme="dark"] .text-bg-info { background: #0369A1 !important; color: #fff !important; }
[data-bs-theme="dark"] .text-bg-secondary { background: #4B5563 !important; color: #fff !important; }
[data-bs-theme="dark"] .border { border-color: var(--brand-border) !important; }

/* Topbar (Customer) */
[data-bs-theme="dark"] .brand-topbar {
    background: rgba(26, 29, 39, .92);
    border-bottom-color: var(--brand-border);
}
[data-bs-theme="dark"] .brand-topbar .nav-link.active { color: var(--brand-text) !important; }

/* Sidebar (Admin) — bleibt eine dunkle Fläche, im Dark-Mode aber eine elevated Surface */
[data-bs-theme="dark"] .brand-sidebar {
    background: var(--brand-surface);
    border-right: 1px solid var(--brand-border);
    color: var(--brand-text);
}
[data-bs-theme="dark"] .brand-sidebar .brand-logo { border-bottom-color: var(--brand-border); }
[data-bs-theme="dark"] .brand-sidebar .nav-link { color: var(--brand-text-muted); }
[data-bs-theme="dark"] .brand-sidebar .nav-link:hover { background: var(--brand-surface-2); color: var(--brand-text); }
[data-bs-theme="dark"] .brand-sidebar .nav-link.active {
    background: var(--brand-accent);
    color: #06231F;
    box-shadow: 0 4px 14px rgba(45,212,191,.30);
}

[data-bs-theme="dark"] .brand-topbar-admin {
    background: var(--brand-surface);
    border-bottom-color: var(--brand-border);
}

/* Login-Karte: im Dark-Mode wird die Karte selbst dunkel */
[data-bs-theme="dark"] .brand-login-card {
    background: var(--brand-surface);
    border-color: var(--brand-border);
}

/* Ticket-Eintrag */
[data-bs-theme="dark"] .ticket-entry {
    background: var(--brand-surface);
    border-color: var(--brand-border);
}
[data-bs-theme="dark"] .ticket-entry .entry-header { background: var(--brand-surface-2); border-bottom-color: var(--brand-border); }
[data-bs-theme="dark"] .ticket-entry .entry-header .author { color: var(--brand-text); }
[data-bs-theme="dark"] .ticket-entry.entry-admin .entry-header { background: var(--brand-primary-light); }
[data-bs-theme="dark"] .ticket-entry .entry-header .role-customer { background: rgba(45, 212, 191, .18); color: #99F6E4; }
[data-bs-theme="dark"] .ticket-entry .entry-header .role-admin    { background: rgba(148, 168, 208, .18); color: #C7D2FE; }
[data-bs-theme="dark"] .ticket-entry .entry-body { color: var(--brand-text); }
[data-bs-theme="dark"] .ticket-entry .entry-attachments { background: var(--brand-surface-2); border-top-color: var(--brand-border); }
[data-bs-theme="dark"] .ticket-entry .entry-attachments a {
    background: var(--brand-surface);
    color: var(--brand-accent);
    border-color: var(--brand-border);
}
[data-bs-theme="dark"] .ticket-entry .entry-attachments a:hover {
    background: var(--brand-accent-light);
    border-color: var(--brand-accent);
    color: var(--brand-accent-hover);
}

/* Editor (Quill) */
[data-bs-theme="dark"] .editor-wrap { background: var(--brand-surface); border-color: var(--brand-border); }
[data-bs-theme="dark"] .ql-toolbar.ql-snow { background: var(--brand-surface-2); border-color: var(--brand-border) !important; }
[data-bs-theme="dark"] .ql-container.ql-snow { border-color: var(--brand-border) !important; background: var(--brand-surface); }
[data-bs-theme="dark"] .ql-editor { color: var(--brand-text); }
[data-bs-theme="dark"] .ql-editor.ql-blank::before { color: var(--brand-text-faint); font-style: normal; }
[data-bs-theme="dark"] .ql-snow .ql-stroke { stroke: var(--brand-text-muted); }
[data-bs-theme="dark"] .ql-snow .ql-fill,
[data-bs-theme="dark"] .ql-snow .ql-stroke.ql-fill { fill: var(--brand-text-muted); }
[data-bs-theme="dark"] .ql-snow .ql-picker { color: var(--brand-text-muted); }
[data-bs-theme="dark"] .ql-snow .ql-picker-options { background: var(--brand-surface); border-color: var(--brand-border); }
[data-bs-theme="dark"] .ql-snow.ql-toolbar button:hover .ql-stroke,
[data-bs-theme="dark"] .ql-snow.ql-toolbar button.ql-active .ql-stroke,
[data-bs-theme="dark"] .ql-snow.ql-toolbar .ql-picker-label:hover .ql-stroke { stroke: var(--brand-accent); }
[data-bs-theme="dark"] .ql-snow.ql-toolbar button:hover .ql-fill,
[data-bs-theme="dark"] .ql-snow.ql-toolbar button.ql-active .ql-fill { fill: var(--brand-accent); }
[data-bs-theme="dark"] .ql-snow .ql-tooltip {
    background: var(--brand-surface);
    border-color: var(--brand-border);
    color: var(--brand-text);
    box-shadow: var(--brand-shadow-md);
}
[data-bs-theme="dark"] .ql-snow .ql-tooltip input[type=text] {
    background: var(--brand-surface-2);
    border-color: var(--brand-border);
    color: var(--brand-text);
}
[data-bs-theme="dark"] blockquote, [data-bs-theme="dark"] .ql-editor blockquote { border-left-color: var(--brand-border); color: var(--brand-text-muted); }
[data-bs-theme="dark"] .ql-editor pre, [data-bs-theme="dark"] .ql-editor code { background: var(--brand-surface-2); color: var(--brand-text); }

/* Upload-Zone */
[data-bs-theme="dark"] .upload-zone { background: var(--brand-surface-2); border-color: var(--brand-border); color: var(--brand-text-muted); }
[data-bs-theme="dark"] .upload-zone:hover, [data-bs-theme="dark"] .upload-zone.dragover {
    background: rgba(45, 212, 191, .08);
    border-color: var(--brand-accent);
    color: var(--brand-text);
}
[data-bs-theme="dark"] .upload-list li { background: var(--brand-surface-2); color: var(--brand-text); }

/* Footer */
[data-bs-theme="dark"] .brand-footer { background: var(--brand-surface); border-top-color: var(--brand-border); }
[data-bs-theme="dark"] .brand-footer a { color: var(--brand-text-muted); }
[data-bs-theme="dark"] .brand-footer a:hover { color: var(--brand-accent); }

/* Theme-Toggle Button */
.brand-theme-toggle {
    width: 38px; height: 38px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--brand-border);
    background: var(--brand-surface);
    color: var(--brand-text-muted);
    transition: color .18s, background .18s, border-color .18s, transform .18s;
    padding: 0;
}
.brand-theme-toggle:hover {
    color: var(--brand-accent);
    border-color: var(--brand-accent);
    background: var(--brand-surface);
    transform: translateY(-1px);
}
.brand-theme-toggle i { font-size: 1rem; line-height: 1; }
[data-bs-theme="dark"] .brand-theme-toggle { background: var(--brand-surface-2); }
.brand-sidebar .brand-theme-toggle {
    background: rgba(255,255,255,.06);
    border-color: rgba(255,255,255,.12);
    color: #C8CDD8;
}
.brand-sidebar .brand-theme-toggle:hover { color: #fff; border-color: var(--brand-accent); background: rgba(255,255,255,.10); }