/**
 * POLYROB Design System - Reusable Components
 *
 * Created: 2024-12-05
 * Version: 1.0.0
 *
 * This file provides unified component styles that should be used
 * across all pages for consistency.
 */

/* =============================================================================
   BUTTONS
   ============================================================================= */

/* Base button reset */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);

    padding: 0 var(--spacing-md);
    height: var(--button-height);
    min-height: var(--button-height);

    font-family: var(--font-family-mono);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-normal);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
    text-decoration: none;

    background: transparent;
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    color: var(--color-text-primary);

    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn:hover:not(:disabled) {
    border-color: var(--color-accent-blue);
    color: var(--color-accent-blue);
}

.btn:active:not(:disabled) {
    transform: scale(0.98);
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Button variants */
.btn-primary {
    border-color: var(--color-accent-blue);
    color: var(--color-accent-blue);
}

.btn-primary:hover:not(:disabled) {
    background: rgba(86, 194, 255, 0.1);
}

.btn-success {
    border-color: var(--color-accent-green);
    color: var(--color-accent-green);
}

.btn-success:hover:not(:disabled) {
    background: rgba(86, 226, 194, 0.1);
}

.btn-danger {
    border-color: var(--color-accent-red);
    color: var(--color-accent-red);
}

.btn-danger:hover:not(:disabled) {
    background: rgba(255, 94, 94, 0.1);
}

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

.btn-warning:hover:not(:disabled) {
    background: rgba(226, 192, 112, 0.1);
}

/* Button sizes */
.btn-sm {
    height: 24px;
    padding: 0 var(--spacing-sm);
    font-size: 10px;
}

.btn-lg {
    height: var(--button-height-lg);
    padding: 0 var(--spacing-lg);
    font-size: var(--font-size-sm);
}

/* Icon button */
.btn-icon {
    width: var(--button-height);
    padding: 0;
}

.btn-icon.btn-lg {
    width: var(--button-height-lg);
}

/* Legacy button aliases - for backwards compatibility */
.btn-search {
    border-color: var(--color-accent-blue);
    color: var(--color-accent-blue);
}

.btn-search:hover:not(:disabled) {
    background: rgba(86, 194, 255, 0.1);
}

.btn-page {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--spacing-md);
    height: var(--button-height);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-xs);
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-page:hover:not(:disabled) {
    border-color: var(--color-accent-blue);
    color: var(--color-accent-blue);
}

.btn-page:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Filter/Action buttons */
.btn-filter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--spacing-md);
    height: var(--button-height);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    background: transparent;
    border: 1px solid var(--color-accent-blue);
    color: var(--color-accent-blue);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-filter:hover:not(:disabled) {
    background: rgba(86, 194, 255, 0.1);
}

.btn-clear {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--spacing-md);
    height: var(--button-height);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-clear:hover:not(:disabled) {
    border-color: var(--color-accent-red);
    color: var(--color-accent-red);
}

/* Note: .filter-input now consolidated with .form-input above */

/* =============================================================================
   TABS / NAVIGATION
   ============================================================================= */

.tabs {
    display: flex;
    gap: 0;
    border-bottom: var(--border-width) solid var(--color-border);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);

    padding: var(--spacing-md) var(--spacing-xl);
    min-height: var(--touch-target-min);

    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    text-decoration: none;
    white-space: nowrap;

    background: transparent;
    border: none;
    border-bottom: var(--border-width-thick) solid transparent;
    color: var(--color-text-secondary);

    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab:hover {
    color: var(--color-text-primary);
}

.tab.active {
    color: var(--color-accent-green);
    border-bottom-color: var(--color-accent-green);
}

/* Tab variant - blue accent (for settings, admin, secondary pages) */
.tabs--blue .tab.active {
    color: var(--color-accent-blue);
    border-bottom-color: var(--color-accent-blue);
}

/* Admin Navigation - specific styling */
.admin-nav {
    display: flex;
    gap: var(--spacing-xs);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-xl);
    overflow-x: auto;
    padding: 0 var(--spacing-xl);
}

.admin-nav-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-xl);
    min-height: var(--touch-target-min);
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.admin-nav-item:hover {
    color: var(--color-text-primary);
}

.admin-nav-item.active {
    color: var(--color-accent-blue);
    border-bottom-color: var(--color-accent-blue);
}

/* =============================================================================
   FORM CONTROLS
   ============================================================================= */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);

    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-hint {
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    font-style: italic;
}

.form-error {
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--color-error);
}

/* Text inputs, textareas, selects */
.form-control {
    display: block;
    width: 100%;
    height: var(--input-height);
    padding: var(--spacing-sm) var(--spacing-md);

    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);

    background: var(--color-bg-primary);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);

    transition: border-color var(--transition-fast);

    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent-blue);
}

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

.form-control:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Textarea specific */
textarea.form-control {
    height: auto;
    min-height: 80px;
    resize: vertical;
}

/* Select specific */
select.form-control {
    padding-right: 32px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23909090' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    cursor: pointer;
}

/* Checkbox/Toggle */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.form-check input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--color-accent-green);
    cursor: pointer;
}

/* Legacy form input aliases - mapped to .form-control */
.form-input,
.search-input,
.filter-input {
    display: block;
    width: 100%;
    height: var(--input-height);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-fast);
    box-sizing: border-box;
}

.form-input:focus,
.search-input:focus,
.filter-input:focus {
    outline: none;
    border-color: var(--color-accent-blue);
}

/* Legacy select aliases - mapped to select.form-control */
.filter-select,
.form-select {
    display: block;
    height: var(--input-height);
    padding: var(--spacing-sm) var(--spacing-md);
    padding-right: 32px;
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    border: var(--border-width) solid var(--color-border);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23909090' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    cursor: pointer;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.filter-select:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-accent-blue);
}

/* =============================================================================
   CARDS
   ============================================================================= */

.card {
    background: var(--color-bg-terminal);
    border: var(--border-width) solid var(--color-border);
    padding: var(--spacing-lg);
    transition: border-color var(--transition-fast);
}

.card:hover {
    border-color: var(--color-accent-blue);
}

/* Card with left accent */
.card--accent {
    border-left-width: var(--border-width-accent);
    border-left-color: var(--color-accent-blue);
}

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

.card--accent-yellow {
    border-left-color: var(--color-accent-yellow);
}

.card--accent-red {
    border-left-color: var(--color-accent-red);
}

/* Stat card */
.card--stat {
    text-align: center;
    padding: var(--spacing-xl);
}

.card--stat .stat-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--color-accent-green);
    font-family: var(--font-family-mono);
}

.card--stat .stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: var(--spacing-sm);
}

/* =============================================================================
   SECTION HEADERS
   ============================================================================= */

.section-header {
    font-size: var(--font-size-lg);
    color: var(--color-accent-blue);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: var(--border-width) solid var(--color-border);
    font-weight: var(--font-weight-normal);
}

.section-header a {
    font-size: var(--font-size-xs);
    text-transform: none;
    letter-spacing: normal;
    float: right;
}

.section-header--flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Profile section header - extends .section-header with flex layout */
.profile-section-header {
    font-size: var(--font-size-lg);
    color: var(--color-accent-blue);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: var(--border-width) solid var(--color-border);
    font-weight: var(--font-weight-normal);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* =============================================================================
   TABLES
   ============================================================================= */

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

.table th,
.table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: var(--border-width) solid var(--color-border);
}

.table th {
    background: var(--color-bg-primary);
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.table tbody tr:hover {
    background: var(--color-bg-primary);
}

/* =============================================================================
   MODALS
   ============================================================================= */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    padding: var(--spacing-xl);
}

.modal-overlay.hidden {
    display: none;
}

.modal {
    background: var(--color-bg-secondary);
    border: var(--border-width) solid var(--color-border);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: var(--border-width) solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: var(--font-size-lg);
    color: var(--color-accent-blue);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

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

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: var(--border-width) solid var(--color-border);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

/* =============================================================================
   LOADING STATES
   ============================================================================= */

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

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Inline loading (for buttons, etc) */
.loading-inline {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.loading-inline .loading-spinner {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

/* =============================================================================
   EMPTY STATES
   ============================================================================= */

.empty-state {
    text-align: center;
    padding: 60px var(--spacing-xl);
    color: var(--color-text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    box-sizing: border-box;
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state-title {
    font-size: var(--font-size-md);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.empty-state-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* Mobile empty state */
@media (max-width: 768px) {
    .empty-state {
        padding: 40px 16px;
    }

    .empty-state-icon {
        font-size: 40px;
    }

    .empty-state-title {
        font-size: var(--font-size-base);
    }
}

/* =============================================================================
   ALERTS / INFO BOXES
   ============================================================================= */

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-left: var(--border-width-accent) solid var(--color-accent-blue);
    background: var(--color-bg-primary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
}

.alert--success {
    border-left-color: var(--color-accent-green);
}

.alert--warning {
    border-left-color: var(--color-accent-yellow);
}

.alert--error {
    border-left-color: var(--color-accent-red);
}

/* =============================================================================
   BADGES
   ============================================================================= */

.badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
}

.badge-primary {
    background: var(--color-accent-blue);
    color: var(--color-bg-primary);
}

.badge-success {
    background: var(--color-accent-green);
    color: var(--color-bg-primary);
}

.badge-warning {
    background: var(--color-accent-yellow);
    color: var(--color-bg-primary);
}

.badge-danger {
    background: var(--color-accent-red);
    color: var(--color-bg-primary);
}

.badge-muted {
    background: var(--color-text-muted);
    color: var(--color-bg-primary);
}

/* =============================================================================
   PAGINATION
   ============================================================================= */

.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) 0;
    font-size: var(--font-size-sm);
}

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

.pagination-controls {
    display: flex;
    gap: var(--spacing-sm);
}

/* =============================================================================
   UTILITY CLASSES
   ============================================================================= */

/* Text utilities */
.text-muted { color: var(--color-text-muted); }
.text-success { color: var(--color-accent-green); }
.text-error { color: var(--color-accent-red); }
.text-warning { color: var(--color-accent-yellow); }
.text-info { color: var(--color-accent-blue); }
.text-center { text-align: center; }
.text-right { text-align: right; }

.font-mono { font-family: var(--font-family-mono); }
.font-bold { font-weight: var(--font-weight-bold); }

/* Display utilities */
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* Flex utilities */
.flex { display: flex; }
.flex-1 { flex: 1; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* Spacing utilities */
.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mr-sm { margin-right: var(--spacing-sm); }
.mr-md { margin-right: var(--spacing-md); }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }

/* Overflow utilities */
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }
.overflow-hidden { overflow: hidden; }

/* Cursor utilities */
.cursor-pointer { cursor: pointer; }
.select-none { user-select: none; }

/* Border utilities */
.border-none { border: none; }
.p-0 { padding: 0; }
.pt-md { padding-top: var(--spacing-md); }

/* =============================================================================
   LAYOUT CONTAINERS - UNIFIED WIDTH SYSTEM
   All pages use the same content zone width for consistency
   ============================================================================= */

.container {
    /* ALL containers are full-width - content width is controlled inside */
    max-width: none;
    width: 100%;
    margin: 0;
    padding: 0;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

/* Legacy class - now behaves same as default */
.container--fullwidth {
    max-width: none;
    padding: 0;
}

/* Mobile: Consistent full-width behavior */
@media (max-width: 768px) {
    .container {
        padding: 0;
        max-width: 100%;
    }
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

/* =============================================================================
   ERROR PAGE STYLES
   ============================================================================= */

.error-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    background: var(--color-bg-primary);
}

.error-box {
    background: var(--color-bg-terminal);
    border: 1px solid var(--color-accent-red);
    max-width: 800px;
    width: 100%;
}

.error-header {
    background: var(--color-accent-red);
    color: var(--color-bg-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-lg);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.error-body {
    padding: var(--spacing-xl);
}

/* Base error message - used across all pages */
.error-message {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-accent-red);
    font-family: var(--font-family-mono);
    white-space: pre-wrap;
    word-break: break-word;
    line-height: var(--line-height-normal);
}

/* Block-style error with background */
.error-message--block {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--error-bg);
    border-left: var(--border-width-accent) solid var(--color-accent-red);
}

/* Inline error for form fields */
.error-message--inline {
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-xs);
}

.error-details {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-family-mono);
}

.error-prefix {
    color: var(--color-accent-red);
    margin-right: var(--spacing-sm);
}

.error-section {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.error-section .section-title {
    color: var(--color-accent-blue);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.error-section .section-content {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    white-space: pre-wrap;
}

.error-actions {
    margin-top: var(--spacing-xl);
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.action-btn:hover {
    border-color: var(--color-accent-blue);
    color: var(--color-accent-blue);
}

.action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.action-link {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid var(--color-accent-green);
    color: var(--color-accent-green);
    text-decoration: none;
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.action-link:hover {
    background: rgba(86, 226, 194, 0.1);
}

.action-prefix {
    color: var(--color-accent-green);
    margin-right: var(--spacing-sm);
}

.troubleshooting-hints {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.troubleshooting-hint {
    padding: var(--spacing-sm);
    background: var(--color-bg-secondary);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* =============================================================================
   PROGRESS BAR
   ============================================================================= */

.upload-progress {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-primary);
    border-top: 1px solid var(--color-border);
}

.progress-bar-container {
    height: 4px;
    background: var(--color-border);
    margin-bottom: var(--spacing-xs);
}

.progress-bar {
    height: 100%;
    background: var(--color-accent-blue);
    transition: width var(--transition-fast);
}

.progress-text {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* =============================================================================
   SPINNER (Legacy alias for .loading-spinner)
   ============================================================================= */

.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: var(--spacing-sm);
    vertical-align: middle;
}

/* Loading state container (for session list, etc) */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    color: var(--color-text-secondary);
    gap: var(--spacing-md);
}

/* =============================================================================
   MISC CONTAINERS
   ============================================================================= */

/* Vision controls in sidebar */
.vision-controls {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* Feed items container */
.feed-items-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* Button add modifier */
.btn-add {
    font-size: var(--font-size-sm);
    padding: 6px 12px;
    text-transform: none;
    letter-spacing: normal;
}

/* Action button (admin forms) */
.btn-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    height: var(--button-height);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-action:hover:not(:disabled) {
    border-color: var(--color-accent-blue);
    color: var(--color-accent-blue);
}

.btn-action:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-action.btn-success {
    border-color: var(--color-accent-green);
    color: var(--color-accent-green);
}

.btn-action.btn-success:hover:not(:disabled) {
    background: rgba(86, 226, 194, 0.1);
}

.btn-action.btn-danger {
    border-color: var(--color-accent-red);
    color: var(--color-accent-red);
}

.btn-action.btn-danger:hover:not(:disabled) {
    background: rgba(255, 94, 94, 0.1);
}