/* ============================================
   VoiceBoard — Component Styles v4 (iOS HIG)
   Premium Apple-quality components
   ============================================ */

/* ── Layout ── */
.app-layout {
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
}

.main-content {
    flex: 1;
    min-width: 0;
    margin-left: var(--sidebar-width);
    padding: 24px 28px;
    padding-top: calc(24px + 60px);
    min-height: 100vh;
    min-height: 100dvh;
    transition: margin-left var(--transition-base);
    display: flex;
    flex-direction: column;
}

.main-content.sidebar-collapsed {
    margin-left: var(--sidebar-collapsed-width);
}

.page-header {
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding: 24px 32px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-radius: var(--radius-2xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.page-header h1 {
    font-size: clamp(22px, 3vw, 28px);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    letter-spacing: -0.5px;
    line-height: 1.15;
}

/* Subtle accent dot */
.page-header h1::after {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
    margin-left: 5px;
    vertical-align: super;
    opacity: 0.8;
}

.page-header p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: 4px;
}

/* ════════════════════════════════════════════
   Segmented Control — iOS Style
   ════════════════════════════════════════════ */
.ios-segmented-control {
    display: inline-flex;
    background: var(--color-fill-tertiary);
    padding: 3px;
    border-radius: var(--radius-lg);
    gap: 2px;
}

.ios-segmented-control .segment-btn {
    padding: 6px 14px;
    border: none;
    background: transparent;
    border-radius: calc(var(--radius-lg) - 2px);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.ios-segmented-control .segment-btn:hover:not(.active) {
    background: var(--color-fill-secondary);
    color: var(--color-text-primary);
}

.ios-segmented-control .segment-btn.active {
    background: var(--color-surface);
    color: var(--color-text-primary);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 1px rgba(0,0,0,0.06);
    font-weight: var(--font-weight-semibold);
}

/* ════════════════════════════════════════════
   Buttons — iOS Style
   ════════════════════════════════════════════ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    border: none;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-ios);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    letter-spacing: 0;
    min-height: var(--touch-target-min);
    -webkit-user-select: none;
    user-select: none;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 1px 3px color-mix(in srgb, var(--color-primary) 25%, transparent);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    box-shadow: 0 4px 14px color-mix(in srgb, var(--color-primary) 28%, transparent);
}

.btn-secondary {
    background-color: var(--color-fill);
    color: var(--color-primary);
    border: none;
}

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

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-border-strong);
}

.btn-outline:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
}

.btn-danger {
    background: var(--color-danger);
    color: white;
    box-shadow: 0 1px 3px rgba(255, 59, 48, 0.2);
}

.btn-danger:hover {
    box-shadow: 0 4px 14px rgba(255, 59, 48, 0.3);
}

.btn-ghost {
    background: transparent;
    color: var(--color-primary);
    padding: 8px 14px;
}

.btn-ghost:hover {
    background: var(--color-primary-light);
}

.btn-accent {
    background: var(--color-accent);
    color: white;
    box-shadow: 0 1px 3px color-mix(in srgb, var(--color-accent) 25%, transparent);
}

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

.btn-sm {
    padding: 6px 12px;
    font-size: var(--font-size-xs);
    border-radius: var(--radius-sm);
    min-height: 32px;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn:disabled, .btn[disabled] {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
}

/* ════════════════════════════════════════════
   Cards — iOS Grouped Style
   ════════════════════════════════════════════ */
.card {
    background: var(--glass-bg-thick);
    backdrop-filter: blur(var(--glass-blur-heavy));
    -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-separator);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    position: relative;
    padding-bottom: 6px;
}

.card-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 3px;
    border-radius: 2px;
    background: var(--color-primary);
    opacity: 0.8;
}

/* ════════════════════════════════════════════
   KPI Cards — iOS Widget Style
   ════════════════════════════════════════════ */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 14px;
    margin-bottom: var(--spacing-lg);
}

.kpi-card {
    background: var(--glass-bg-thick);
    backdrop-filter: blur(var(--glass-blur-heavy));
    -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
    border-radius: var(--radius-xl);
    padding: 20px 22px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-xl);
    transition: all 0.35s cubic-bezier(0.25, 0.1, 0.25, 1);
    position: relative;
    overflow: hidden;
    min-height: 130px;
}

.kpi-card-inner {
    position: relative;
    z-index: 2;
}

/* Background glyph watermark */
.kpi-bg-glyph {
    position: absolute;
    bottom: -8px;
    right: -4px;
    font-size: 64px;
    opacity: 0.05;
    line-height: 1;
    z-index: 1;
    transition: all 0.4s ease;
    filter: grayscale(0.3);
}

.kpi-card:hover .kpi-bg-glyph {
    opacity: 0.10;
    transform: scale(1.06) rotate(-3deg);
}

/* Colored top edge */
.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.kpi-card.kpi-primary::before   { background: var(--color-primary); }
.kpi-card.kpi-success::before   { background: var(--color-success); }
.kpi-card.kpi-warning::before   { background: var(--color-accent); }
.kpi-card.kpi-danger::before    { background: var(--color-danger); }
.kpi-card.kpi-purple::before    { background: var(--brand-stripe-h); }
.kpi-card.kpi-info::before      { background: var(--color-secondary); }

/* Hover effects */
.kpi-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.kpi-card.kpi-primary:hover   { box-shadow: var(--shadow-lg), 0 6px 24px -6px color-mix(in srgb, var(--color-primary) 18%, transparent); }
.kpi-card.kpi-success:hover   { box-shadow: var(--shadow-lg), 0 6px 24px -6px color-mix(in srgb, var(--color-success) 18%, transparent); }
.kpi-card.kpi-warning:hover   { box-shadow: var(--shadow-lg), 0 6px 24px -6px color-mix(in srgb, var(--color-accent) 18%, transparent); }
.kpi-card.kpi-purple:hover    { box-shadow: var(--shadow-lg), var(--brand-glow); }

.kpi-header-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.kpi-card .kpi-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    flex-shrink: 0;
}

.kpi-card.kpi-primary .kpi-icon { background: var(--color-primary-light); }
.kpi-card.kpi-success .kpi-icon { background: var(--color-success-light); }
.kpi-card.kpi-warning .kpi-icon { background: var(--color-accent-light); }
.kpi-card.kpi-danger .kpi-icon  { background: var(--color-danger-light); }
.kpi-card.kpi-purple .kpi-icon  { background: var(--color-primary-light); }
.kpi-card.kpi-info .kpi-icon    { background: var(--color-secondary-light); }

.kpi-card .kpi-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.1px;
}

.kpi-card .kpi-value {
    font-size: clamp(24px, 3vw, 30px);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    line-height: 1.1;
    letter-spacing: -0.8px;
    font-variant-numeric: tabular-nums;
}

.kpi-card .kpi-trend {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: var(--font-size-2xs);
    font-weight: var(--font-weight-semibold);
    margin-top: 8px;
    padding: 3px 8px;
    border-radius: var(--radius-full);
}

.kpi-trend.up { background: var(--color-success-light); color: var(--color-success); }
.kpi-trend.down { background: var(--color-danger-light); color: var(--color-danger); }

/* ════════════════════════════════════════════
   Tables — iOS Grouped List Style
   ════════════════════════════════════════════ */
.table-container {
    background: var(--glass-bg-thick);
    backdrop-filter: blur(var(--glass-blur-heavy));
    -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
    border-radius: var(--radius-2xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.table-responsive {
    overflow-x: auto;
    width: 100%;
    -webkit-overflow-scrolling: touch;
}

.table-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px var(--spacing-lg);
    border-bottom: 1px solid var(--color-separator);
    gap: var(--spacing-md);
    flex-wrap: wrap;
    background: var(--color-fill-tertiary);
}

.table-search {
    position: relative;
    flex: 1;
    max-width: 320px;
}

.table-search input {
    width: 100%;
    padding: 10px 14px 10px 36px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: var(--color-surface);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    min-height: var(--touch-target-min);
}

.table-search input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.table-search .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-tertiary);
    font-size: 14px;
    pointer-events: none;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    position: sticky;
    top: 0;
    z-index: 10;
    padding: 10px var(--spacing-md);
    text-align: left;
    font-size: var(--font-size-2xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    background: var(--glass-bg-thick);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--color-separator);
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
    transition: color var(--transition-fast);
}

.table th:hover {
    color: var(--color-primary);
}

.table td {
    padding: 12px var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    border-bottom: 1px solid var(--color-separator);
    vertical-align: middle;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.table tr {
    transition: all var(--transition-fast);
}

.table tbody tr:hover {
    background: var(--color-fill-tertiary);
}

.table tbody tr:hover td:first-child {
    box-shadow: inset 3px 0 0 var(--color-primary);
}

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

/* ── Badges — iOS Pill Style ── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-2xs);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.2px;
}

.badge-success { background: var(--color-success-light); color: var(--color-success); }
.badge-danger { background: var(--color-danger-light); color: var(--color-danger); }
.badge-warning { background: var(--color-warning-light); color: var(--color-warning); }
.badge-primary { background: var(--color-primary-light); color: var(--color-primary); }
.badge-secondary { background: var(--color-fill); color: var(--color-text-secondary); }
.badge-accent { background: var(--color-accent-light); color: var(--color-accent); }

/* ════════════════════════════════════════════
   Forms — iOS Text Fields
   ════════════════════════════════════════════ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

.form-input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background: var(--color-surface);
    transition: all var(--transition-fast);
    min-height: var(--touch-target-min);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input::placeholder {
    color: var(--color-text-tertiary);
}

.form-input.error {
    border-color: var(--color-danger);
    box-shadow: 0 0 0 3px var(--color-danger-light);
}

.form-error {
    font-size: var(--font-size-xs);
    color: var(--color-danger);
    margin-top: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: 4px;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2386868B' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

/* ── Custom Filters & Glassmorphism ── */
.form-control-glass {
    min-width: 150px;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.5rem 2.25rem 0.5rem 1rem;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    outline: none;
    transition: all var(--transition-base);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2386868B' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
}
.form-control-glass:focus, .form-control-glass:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-primary) 15%, transparent);
}
.form-control-glass.search-input {
    background-image: none;
    padding-left: 2.25rem;
    padding-right: 1rem;
    width: 100%;
}
.form-control-glass option {
    background-color: var(--color-surface);
    color: var(--color-text-primary);
}

.filter-checkbox-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.5rem 1rem;
    transition: all var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 0;
    box-shadow: var(--shadow-sm);
    transform: translateZ(0); /* Fix compositor ghosting */
    width: fit-content;
    white-space: nowrap;
}
.filter-checkbox-btn:hover {
    border-color: var(--color-primary);
    transform: translateY(-1px) translateZ(0);
}
.filter-checkbox-btn:active {
    transform: scale(0.97) translateZ(0);
}
.filter-checkbox-btn.active {
    background-color: color-mix(in srgb, var(--color-primary) 8%, var(--color-surface));
    border-color: var(--color-primary);
}
.filter-checkbox-btn.active span {
    color: var(--color-primary);
}
.filter-checkbox-btn input[type="checkbox"] {
    width: 1.1rem;
    height: 1.1rem;
    cursor: pointer;
    accent-color: var(--color-primary);
    margin: 0;
}
.filter-checkbox-btn span {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    transition: color var(--transition-base);
}

.badge-soft {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
}
.badge-soft-warning {
    color: #9a6700;
    background-color: #fef0c7;
    border: 1px solid #fdecb5;
}
.badge-soft-success {
    color: #027a48;
    background-color: #d1fadf;
    border: 1px solid #a6f4c5;
}
.badge-soft-danger {
    color: #b42318;
    background-color: #fee4e2;
    border: 1px solid #fecdca;
}

/* ════════════════════════════════════════════
   Charts — Clean Panels
   ════════════════════════════════════════════ */
.chart-container {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.chart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

/* ════════════════════════════════════════════
   Modal — iOS Sheet Style
   ════════════════════════════════════════════ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

.modal {
    background: var(--color-surface);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    max-width: 520px;
    width: 90%;
    box-shadow: var(--shadow-float);
    border: 1px solid var(--color-border);
    animation: modalSlideUp 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    position: relative;
    overflow: hidden;
    max-height: 90vh;
    overflow-y: auto;
}

/* iOS-style handle indicator */
.modal::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 5px;
    background: var(--color-fill);
    border-radius: var(--radius-full);
}

@keyframes modalSlideUp {
    from { opacity: 0; transform: translateY(30px) scale(0.97); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding-top: 12px;
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.2px;
}

.modal-close {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-full);
    border: none;
    background: var(--color-fill);
    color: var(--color-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-fill-secondary);
    color: var(--color-text-primary);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-separator);
}

/* ── Pagination — iOS Style ── */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px var(--spacing-md);
    border-top: 1px solid var(--color-separator);
}

.pagination-info {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 4px;
}

.pagination-btn {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-fast);
}

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

.pagination-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    box-shadow: 0 2px 8px color-mix(in srgb, var(--color-primary) 25%, transparent);
}

.pagination-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ── Loading — iOS Style Spinner ── */
.skeleton {
    background: linear-gradient(90deg,
        var(--color-fill-tertiary) 25%,
        var(--color-fill-secondary) 50%,
        var(--color-fill-tertiary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

.spinner {
    width: 28px;
    height: 28px;
    border: 3px solid var(--color-fill);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.loading-overlay {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-3xl);
    color: var(--color-text-secondary);
}

/* ── Toast — iOS Banner Style ── */
.toast-container {
    position: fixed;
    top: 76px;
    right: var(--spacing-lg);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: var(--glass-bg-thick);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-radius: var(--radius-lg);
    padding: 14px 18px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--glass-border);
    animation: toastSlideIn 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 300px;
    max-width: 420px;
}

.toast.success { border-left: 4px solid var(--color-success); }
.toast.error { border-left: 4px solid var(--color-danger); }
.toast.warning { border-left: 4px solid var(--color-warning); }

/* ── Empty State ── */
.empty-state {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    color: var(--color-text-secondary);
}

.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    opacity: 0.25;
}

.empty-state h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    font-size: var(--font-size-sm);
    max-width: 340px;
    margin: 0 auto;
    line-height: 1.5;
}

/* ════════════════════════════════════════════
   Animations
   ════════════════════════════════════════════ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes toastSlideIn {
    from { opacity: 0; transform: translateX(100px) scale(0.9); }
    to { opacity: 1; transform: translateX(0) scale(1); }
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* ════════════════════════════════════════════
   Forms Extra
   ════════════════════════════════════════════ */
.beautiful-textarea {
    width: 100%;
    min-height: 250px;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    line-height: 1.6;
    transition: all var(--transition-fast);
    resize: vertical;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.02);
}

.beautiful-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
    background: var(--color-surface);
}

/* ════════════════════════════════════════════
   Wissensdatenbank (Knowledge Base)
   ════════════════════════════════════════════ */
.kb-section {
    animation: fadeIn 0.3s ease;
}

.kb-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.kb-header-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.kb-header-info .kb-name {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    padding: 4px 12px;
    background: var(--color-fill-secondary);
    border-radius: var(--radius-full);
}

.kb-doc-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-lg);
}

.kb-doc-table th {
    padding: 10px 16px;
    text-align: left;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--color-fill-secondary);
    border-bottom: 1px solid var(--color-separator);
}

.kb-doc-table td {
    padding: 12px 16px;
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    border-bottom: 1px solid var(--color-separator);
    vertical-align: middle;
}

.kb-doc-table tr {
    transition: background var(--transition-fast);
}

.kb-doc-table tbody tr:hover {
    background: var(--color-fill-tertiary);
}

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

.kb-doc-name {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: var(--font-weight-medium);
}

.kb-type-icon {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.kb-type-icon.pdf {
    background: rgba(255, 69, 58, 0.1);
    color: var(--color-danger);
}

.kb-type-icon.docx {
    background: rgba(0, 122, 255, 0.1);
    color: var(--color-primary);
}

.kb-type-icon.txt {
    background: rgba(142, 142, 147, 0.12);
    color: var(--color-text-secondary);
}

.kb-type-icon.website {
    background: rgba(48, 209, 88, 0.1);
    color: var(--color-success);
}

.kb-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
}

.kb-status.active {
    background: var(--color-success-light);
    color: var(--color-success);
}

.kb-status.processing {
    background: var(--color-warning-light);
    color: var(--color-warning);
    animation: pulse 1.5s infinite;
}

.kb-status.failed {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.kb-status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

.kb-btn-delete {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    background: transparent;
    color: var(--color-text-tertiary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: all var(--transition-fast);
}

.kb-btn-delete:hover {
    background: var(--color-danger-light);
    color: var(--color-danger);
    border-color: rgba(255, 69, 58, 0.2);
}

.kb-upload-section {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-fast);
    background: var(--color-surface-hover);
}

.kb-upload-section:hover {
    border-color: var(--color-primary);
    background: var(--color-fill-tertiary);
}

.kb-upload-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.kb-upload-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
    flex-wrap: wrap;
}

.kb-upload-row .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 180px;
}

.kb-file-input-wrapper {
    position: relative;
}

.kb-file-input-wrapper input[type="file"] {
    width: 100%;
    padding: 8px 12px;
    border: 1.5px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    background: var(--color-surface);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.kb-file-input-wrapper input[type="file"]:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.kb-file-input-wrapper input[type="file"]::file-selector-button {
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-fill-secondary);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    margin-right: 12px;
    transition: all var(--transition-fast);
}

.kb-file-input-wrapper input[type="file"]::file-selector-button:hover {
    background: var(--color-fill-tertiary);
}

.kb-upload-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) 0;
}

.kb-empty {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-secondary);
}

.kb-empty-icon {
    font-size: 36px;
    margin-bottom: var(--spacing-sm);
    opacity: 0.5;
}

/* ════════════════════════════════════════════
   Knowledge Base Modals
   ════════════════════════════════════════════ */
.kb-confirm-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1100;
    animation: fadeIn 0.15s ease;
}

.kb-confirm-dialog {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 420px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.25s ease;
}

.kb-confirm-dialog.kb-modal-fullscreen {
    width: 100vw !important;
    height: 100vh !important;
    max-width: none !important;
    max-height: none !important;
    border-radius: 0;
    resize: none !important;
}

.kb-confirm-dialog h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.kb-confirm-dialog p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.kb-confirm-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}