/* ============================================================
   E-MAIL MANAGER – KOMPONENTEN
   Buttons, Formulare, Karten, Badges, Alerts, Tabellen, Modals,
   Toasts, Tabs, Schalter, Avatare, Leerzustände, Utilities
   ============================================================ */

/* ------------------------------------------------------------
   Buttons
   ------------------------------------------------------------ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    min-height: 38px;
    padding: 0 var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    line-height: 1;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    text-decoration: none;
    user-select: none;
    transition: background var(--transition-fast), border-color var(--transition-fast),
                color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.btn:active:not(:disabled) {
    transform: translateY(1px);
}

.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn .icon {
    width: 1.1em;
    height: 1.1em;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: var(--color-primary);
    box-shadow: 0 1px 2px rgba(16, 24, 40, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: var(--color-text-inverse);
}

.btn-secondary,
.btn-default {
    background: var(--color-bg-elevated);
    color: var(--color-text);
    border-color: var(--color-border-strong);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled),
.btn-default:hover:not(:disabled) {
    background: var(--color-bg-subtle);
    border-color: var(--color-border-strong);
    color: var(--color-text);
}

.btn-danger {
    background: var(--color-danger);
    color: var(--color-text-inverse);
    border-color: var(--color-danger);
}

.btn-danger:hover:not(:disabled) {
    filter: brightness(0.92);
    color: var(--color-text-inverse);
}

.btn-danger-outline {
    background: transparent;
    color: var(--color-danger);
    border-color: color-mix(in srgb, var(--color-danger) 45%, transparent);
}

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

.btn-ghost,
.btn-text {
    background: transparent;
    color: var(--color-text-secondary);
    border-color: transparent;
}

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

.btn-link {
    background: none;
    border: none;
    color: var(--color-primary);
    padding: 0;
    min-height: 0;
}

.btn-link:hover:not(:disabled) {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

/* Größen */
.btn-sm {
    min-height: 32px;
    padding: 0 var(--space-3);
    font-size: var(--text-xs);
    border-radius: var(--radius-sm);
}

.btn-xs {
    min-height: 26px;
    padding: 0 var(--space-2);
    font-size: var(--text-xs);
    border-radius: var(--radius-sm);
}

.btn-lg {
    min-height: 44px;
    padding: 0 var(--space-6);
    font-size: var(--text-base);
}

.btn-block {
    width: 100%;
}

/* Quadratischer Icon-Button */
.btn-icon {
    width: 38px;
    height: 38px;
    min-height: 0;
    padding: 0;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
}

.btn-icon:hover:not(:disabled) {
    background: var(--color-bg-hover);
    border-color: var(--color-border-strong);
    color: var(--color-text);
}

.btn-icon.btn-sm,
.btn-icon-sm {
    width: 32px;
    height: 32px;
}

.btn-icon .icon {
    width: 1.25em;
    height: 1.25em;
}

.btn-icon.active {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-group {
    display: inline-flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    align-items: center;
}

/* ------------------------------------------------------------
   Formulare
   ------------------------------------------------------------ */
.form-group,
.form-row {
    margin-bottom: var(--space-4);
}

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

.form-group label,
.form-row label,
.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.form-label .required,
label .required {
    color: var(--color-danger);
    margin-left: 2px;
}

.form-control,
.form-group input:where(:not([type="checkbox"]):not([type="radio"]):not([type="color"]):not([type="file"]):not([type="range"])),
.form-group select,
.form-group textarea,
.form-row input:where(:not([type="checkbox"]):not([type="radio"]):not([type="color"]):not([type="file"]):not([type="range"])),
.form-row select,
.form-row textarea {
    display: block;
    width: 100%;
    min-height: 40px;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-base);
    line-height: 1.4;
    color: var(--color-text);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    box-shadow: inset 0 1px 2px rgba(16, 24, 40, 0.04);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-control:hover,
.form-group input:hover,
.form-row input:hover {
    border-color: var(--color-text-muted);
}

.form-control:focus,
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-focus);
}

.form-control::placeholder,
.form-group input::placeholder,
.form-group textarea::placeholder,
.form-row input::placeholder,
.form-row textarea::placeholder {
    color: var(--color-text-muted);
}

.form-control:disabled,
.form-group input:disabled,
.form-row input:disabled {
    background: var(--color-bg-subtle);
    color: var(--color-text-muted);
    cursor: not-allowed;
}

/* Select mit Pfeil */
.form-control-select,
.form-group select,
.form-row select,
select.form-control {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238a94a6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    padding-right: var(--space-10);
    cursor: pointer;
}

textarea.form-control,
.form-group textarea,
.form-row textarea {
    min-height: 120px;
    resize: vertical;
    line-height: var(--leading-relaxed);
}

.form-hint,
.form-group .hint,
.form-text {
    display: block;
    margin-top: var(--space-2);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.form-error {
    display: block;
    margin-top: var(--space-2);
    font-size: var(--text-xs);
    color: var(--color-danger);
}

.form-control.is-invalid,
.form-group input.is-invalid {
    border-color: var(--color-danger);
}

/* Raster für nebeneinanderliegende Felder */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-4);
}

.form-grid .form-group,
.form-grid .form-row {
    margin-bottom: 0;
}

.form-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-border);
}

/* Checkbox / Radio */
input[type="checkbox"],
input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-label,
.form-check,
.form-row.checkbox-row,
.option-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    color: var(--color-text);
    cursor: pointer;
    margin-bottom: 0;
}

/* Schalter (Toggle) */
.switch {
    position: relative;
    display: inline-block;
    width: 42px;
    height: 24px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch .slider,
.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--color-border-strong);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.switch .slider::before,
.toggle-slider::before {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    background: #ffffff;
    border-radius: var(--radius-full);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    transition: transform var(--transition-fast);
}

.switch input:checked + .slider,
.switch input:checked + .toggle-slider {
    background: var(--color-primary);
}

.switch input:checked + .slider::before,
.switch input:checked + .toggle-slider::before {
    transform: translateX(18px);
}

.switch input:focus-visible + .slider {
    box-shadow: var(--shadow-focus);
}

/* Eingabe mit Icon */
.input-icon {
    position: relative;
}

.input-icon .icon {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
}

.input-icon .form-control,
.input-icon input {
    padding-left: var(--space-10);
}

/* Datei-Upload */
.file-drop {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-6);
    border: 2px dashed var(--color-border-strong);
    border-radius: var(--radius-lg);
    background: var(--color-bg-subtle);
    color: var(--color-text-secondary);
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.file-drop:hover,
.file-drop.dragover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

/* Chips (Anhänge, Tags) */
.chip,
.attachment-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    max-width: 100%;
    padding: var(--space-1) var(--space-3);
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    color: var(--color-text);
}

.chip .chip-remove {
    display: inline-flex;
    width: 16px;
    height: 16px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    color: var(--color-text-muted);
}

.chip .chip-remove:hover {
    background: var(--color-danger-bg);
    color: var(--color-danger);
}

.attachment-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

/* ------------------------------------------------------------
   Karten
   ------------------------------------------------------------ */
.card,
.settings-section,
.settings-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-6);
}

.card-header,
.settings-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.card-title,
.settings-section-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin: 0;
}

.card-title .icon {
    color: var(--color-primary);
}

.card-subtitle {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: 2px;
}

.card-body {
    padding: var(--space-6);
}

.card-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-subtle);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

.card-compact .card-body {
    padding: var(--space-4);
}

/* Listenzeilen innerhalb von Karten */
.list-row {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.list-row:last-child {
    border-bottom: none;
}

.list-row-main {
    flex: 1;
    min-width: 0;
}

.list-row-title {
    font-weight: var(--font-medium);
    color: var(--color-text);
}

.list-row-meta {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-top: 2px;
}

.list-row-actions {
    display: flex;
    gap: var(--space-2);
    flex-shrink: 0;
}

/* ------------------------------------------------------------
   Badges & Status
   ------------------------------------------------------------ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    line-height: 1.5;
    background: var(--color-bg-muted);
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.badge-primary { background: var(--color-primary-light); color: var(--color-primary-dark); }
.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-danger  { background: var(--color-danger-bg);  color: var(--color-danger); }
.badge-info    { background: var(--color-info-bg);    color: var(--color-info); }

[data-theme="dark"] .badge-primary { color: #c7d2fe; }

.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--color-text-muted);
}

.status-dot.success { background: var(--color-success); }
.status-dot.warning { background: var(--color-warning); }
.status-dot.danger  { background: var(--color-danger); }

/* Avatar mit Initialen */
.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    letter-spacing: 0.02em;
    flex-shrink: 0;
    user-select: none;
}

.avatar-sm { width: 32px; height: 32px; font-size: var(--text-xs); }
.avatar-lg { width: 56px; height: 56px; font-size: var(--text-lg); }
.avatar-xl { width: 80px; height: 80px; font-size: var(--text-2xl); }

/* ------------------------------------------------------------
   Alerts
   ------------------------------------------------------------ */
.alert,
.message {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    font-size: var(--text-sm);
    margin-bottom: var(--space-4);
    background: var(--color-info-bg);
    color: var(--color-text);
    border-color: color-mix(in srgb, var(--color-info) 30%, transparent);
}

.alert .icon {
    margin-top: 2px;
    flex-shrink: 0;
}

.alert-success, .message.success, .success-message {
    background: var(--color-success-bg);
    border-color: color-mix(in srgb, var(--color-success) 35%, transparent);
}

.alert-error, .alert-danger, .message.error, .error-message {
    background: var(--color-danger-bg);
    border-color: color-mix(in srgb, var(--color-danger) 35%, transparent);
}

.alert-warning, .message.warning {
    background: var(--color-warning-bg);
    border-color: color-mix(in srgb, var(--color-warning) 35%, transparent);
}

.alert-info, .message.info {
    background: var(--color-info-bg);
}

.alert-success .icon { color: var(--color-success); }
.alert-error .icon, .alert-danger .icon { color: var(--color-danger); }
.alert-warning .icon { color: var(--color-warning); }
.alert-info .icon { color: var(--color-info); }

/* ------------------------------------------------------------
   Tabellen
   ------------------------------------------------------------ */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg-elevated);
}

table,
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

th, td {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

th {
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: var(--color-bg-subtle);
    white-space: nowrap;
}

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

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

td .actions,
td.actions {
    display: flex;
    gap: var(--space-1);
    justify-content: flex-end;
}

/* ------------------------------------------------------------
   Tabs
   ------------------------------------------------------------ */
.tabs {
    display: flex;
    gap: var(--space-1);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-6);
    overflow-x: auto;
    overflow-y: hidden;
}

.tab,
.tabs button,
.admin-tab {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    margin-bottom: -1px;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    border: none;
    border-bottom: 2px solid transparent;
    background: transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.tab:hover,
.tabs button:hover,
.admin-tab:hover {
    color: var(--color-text);
}

.tab.active,
.tabs button.active,
.admin-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

/* Segmentierte Buttons (Filter-Pills) */
.segmented {
    display: inline-flex;
    flex-wrap: wrap;
    padding: 3px;
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    gap: 2px;
}

.segmented button,
.segmented a {
    padding: var(--space-1) var(--space-3);
    border-radius: calc(var(--radius-md) - 3px);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    border: none;
    background: transparent;
    text-decoration: none;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.segmented button.active,
.segmented a.active {
    background: var(--color-bg-elevated);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
}

/* ------------------------------------------------------------
   Modals
   ------------------------------------------------------------ */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(9, 12, 20, 0.55);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal.open,
.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.97) translateY(8px);
    transition: transform var(--transition-base);
}

.modal.open .modal-content,
.modal.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-small { max-width: 440px; }
.modal-wide { max-width: 860px; }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.modal-header h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-6);
}

/* Modals ohne .modal-body: Inhalt direkt einrücken */
.modal-content > .form-row,
.modal-content > .form-group,
.modal-content > .form-actions,
.modal-content > div:not(.modal-header):not(.modal-body):not(.modal-footer) {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.modal-content > .form-row:first-of-type,
.modal-content > .form-group:first-of-type {
    padding-top: var(--space-5);
}

.modal-content > .form-actions {
    margin-top: 0;
    padding-top: var(--space-4);
    padding-bottom: var(--space-5);
    border-top: 1px solid var(--color-border);
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-subtle);
    flex-shrink: 0;
}

/* ------------------------------------------------------------
   Toasts & Benachrichtigungen
   ------------------------------------------------------------ */
.notification,
.toast {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    max-width: 420px;
    padding: var(--space-3) var(--space-5);
    background: var(--color-bg-elevated);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-info);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    font-size: var(--text-sm);
    z-index: var(--z-toast);
    animation: slideIn var(--transition-base);
}

@keyframes slideIn {
    from { transform: translateX(24px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.notification.success, .toast.success { border-left-color: var(--color-success); }
.notification.error,   .toast.error   { border-left-color: var(--color-danger); }
.notification.warning, .toast.warning { border-left-color: var(--color-warning); }
.notification.info,    .toast.info    { border-left-color: var(--color-info); }

.notification button {
    margin-left: auto;
    color: var(--color-text-muted);
    padding: var(--space-1);
    border-radius: var(--radius-sm);
}

.notification button:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

/* Toast: unsichtbar bis .show (showToast() in common.js) */
.toast {
    animation: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: none;
}

/* ------------------------------------------------------------
   Leerzustand, Laden
   ------------------------------------------------------------ */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-12) var(--space-6);
    text-align: center;
    color: var(--color-text-muted);
}

.empty-state .icon,
.empty-state-icon {
    width: 48px;
    height: 48px;
    color: var(--color-border-strong);
    margin-bottom: var(--space-2);
    font-size: 40px;
    line-height: 1;
}

.empty-state h3 {
    font-size: var(--text-lg);
    color: var(--color-text);
}

.empty-state p {
    max-width: 420px;
    font-size: var(--text-sm);
}

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-12);
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.loading::before,
.spinner {
    content: '';
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

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

.hint {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-12);
    color: var(--color-text-muted);
    text-align: center;
}

/* ------------------------------------------------------------
   Dropdown-Menü (Kontextmenü, Aktionen)
   ------------------------------------------------------------ */
.dropdown {
    position: relative;
}

.dropdown-menu,
.context-menu {
    position: absolute;
    min-width: 200px;
    padding: var(--space-2);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    display: none;
}

/* Über Seitenleiste, Kopfzeilen und eingeblendeter Navigation – sonst verschwindet das Menü dahinter */
.context-menu {
    position: fixed;
    z-index: calc(var(--z-overlay) + 50);
    max-width: calc(100vw - 16px);
}

.context-menu-item .icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.context-menu .context-disabled {
    color: var(--color-text-secondary);
    font-size: var(--text-xs);
    white-space: normal;
}

.context-menu .context-disabled:hover {
    background: none;
    color: var(--color-text-secondary);
}

.dropdown-menu.open,
.context-menu.open {
    display: block;
    animation: fadeIn var(--transition-fast);
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.97); }
    to { opacity: 1; transform: scale(1); }
}

.dropdown-item,
.context-menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    width: 100%;
    padding: var(--space-2) var(--space-3);
    color: var(--color-text);
    font-size: var(--text-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    text-align: left;
    background: none;
    border: none;
    transition: background var(--transition-fast);
}

.dropdown-item:hover,
.context-menu-item:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.dropdown-item.danger,
.context-menu-item.danger {
    color: var(--color-danger);
}

.dropdown-item.danger:hover,
.context-menu-item.danger:hover {
    background: var(--color-danger-bg);
}

.context-menu-item.context-disabled {
    color: var(--color-text-muted);
    cursor: default;
}

.dropdown-divider,
.context-menu-divider {
    height: 1px;
    margin: var(--space-2) 0;
    background: var(--color-border);
}

/* ------------------------------------------------------------
   Sonstiges
   ------------------------------------------------------------ */
kbd {
    display: inline-block;
    padding: 1px var(--space-2);
    font-size: var(--text-xs);
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
    border-bottom-width: 2px;
    border-radius: var(--radius-sm);
}

.divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--space-6) 0;
}

.app-footer {
    text-align: center;
    padding: var(--space-4);
    color: var(--color-text-muted);
    font-size: var(--text-xs);
    border-top: 1px solid var(--color-border);
}

/* ------------------------------------------------------------
   Utilities
   ------------------------------------------------------------ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.ml-auto { margin-left: auto; }

.flex { display: flex; }
.flex-1 { flex: 1; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

.hidden,
[hidden] { display: none !important; }

.fade-in { animation: fadeIn var(--transition-base); }
.slide-up { animation: slideUp var(--transition-base); }

@keyframes slideUp {
    from { transform: translateY(8px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Logo auf hellem Feld (für dunkle Logos auf dunkler Seitenleiste/Kopfzeile) */
.brand-logo-plate {
    padding: 4px 8px;
    border-radius: var(--radius-md);
    background: #ffffff;
    box-sizing: content-box;
}

/* Termin-Erinnerungen: Karten unten rechts, bleiben bis zum Schließen */
.reminder-stack {
    position: fixed;
    right: var(--space-4);
    bottom: var(--space-4);
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    width: min(360px, calc(100vw - 2 * var(--space-4)));
}

.reminder-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    padding: var(--space-3);
    border: 1px solid var(--color-border-strong);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    background: var(--color-bg-elevated);
    box-shadow: var(--shadow-lg);
}

.reminder-card a {
    display: flex;
    gap: var(--space-3);
    flex: 1;
    min-width: 0;
    color: var(--color-text);
    text-decoration: none;
}

.reminder-card a > .icon {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    flex-shrink: 0;
    color: var(--color-primary);
}

.reminder-card a span {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.reminder-card strong {
    overflow-wrap: anywhere;
}

.reminder-card small {
    color: var(--color-text-secondary);
}

.reminder-card button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: 0;
    border-radius: var(--radius-sm);
    background: none;
    color: var(--color-text-muted);
    cursor: pointer;
    flex-shrink: 0;
}

.reminder-card button:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.reminder-card button .icon {
    width: 15px;
    height: 15px;
}

/* Rückfrage (confirmDialog in common.js) */
.confirm-dialog {
    z-index: calc(var(--z-toast) + 10);
}

.confirm-dialog .modal-header h3 {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.confirm-dialog .modal-header .icon {
    flex-shrink: 0;
    color: var(--color-primary);
}

.confirm-dialog:has(.btn-danger) .modal-header .icon {
    color: var(--color-danger);
}

.confirm-dialog-text {
    margin: 0;
    color: var(--color-text);
    line-height: var(--leading-relaxed);
    white-space: pre-line; /* Absätze aus dem Text übernehmen */
    overflow-wrap: anywhere;
}

/* Häkchen in der Rückfrage (options.checkbox) */
.confirm-dialog-check {
    align-items: flex-start;
    margin-top: var(--space-4);
    padding: var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-subtle);
    line-height: var(--leading-normal);
    overflow-wrap: anywhere;
}

.confirm-dialog-check input {
    margin-top: 2px;
}

@media (max-width: 575px) {
    /* Smartphone: Knöpfe untereinander und gut treffbar, die Aktion zuerst */
    .confirm-dialog .modal-footer {
        flex-direction: column-reverse;
        align-items: stretch;
    }

    .confirm-dialog .modal-footer .btn {
        justify-content: center;
        min-height: 44px;
    }
}

/* ------------------------------------------------------------
   Smartphone: Tippflächen
   Alles, was man antippt, ist mindestens rund 44 px hoch – so trifft man es
   auch mit dem Daumen. Seiten dürfen einzelne Werte gezielt überschreiben.
   ------------------------------------------------------------ */
@media (max-width: 767px) {
    .btn {
        min-height: 44px;
    }

    .btn-sm {
        min-height: 40px;
        padding: 0 var(--space-3);
    }

    .btn-xs {
        min-height: 36px;
        padding: 0 var(--space-3);
    }

    .btn-link {
        min-height: 0;
    }

    .btn-icon {
        width: 44px;
        height: 44px;
        min-height: 0;
    }

    .btn-icon.btn-sm,
    .btn-icon-sm {
        width: 40px;
        height: 40px;
    }

    .form-control,
    .form-group input:where(:not([type="checkbox"]):not([type="radio"]):not([type="color"]):not([type="file"]):not([type="range"])),
    .form-group select,
    .form-row input:where(:not([type="checkbox"]):not([type="radio"]):not([type="color"]):not([type="file"]):not([type="range"])),
    .form-row select {
        min-height: 46px;
    }

    input[type="checkbox"],
    input[type="radio"] {
        width: 22px;
        height: 22px;
    }

    .dropdown-item,
    .context-menu-item {
        min-height: 44px;
    }

    .admin-tab,
    .segmented a,
    .segmented button {
        min-height: 42px;
    }

    button.chip {
        min-height: 40px;
    }

    /* Text-Knöpfe bleiben optisch klein, bekommen aber eine unsichtbare, größere Tippfläche */
    .btn-link {
        position: relative;
    }

    .btn-link::after {
        content: "";
        position: absolute;
        inset: -13px -6px;
    }

    code,
    kbd {
        font-size: 1em;
    }
}