/* Enhanced CSS styles for Network Tools Application - FIXED VERSION */

/* SIDEBAR SCROLLBAR FIX */
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    transition: all 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
    overflow-x: hidden; /* FIXED: Prevent horizontal scrollbar */
    display: flex;
    flex-direction: column;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
    overflow-y: hidden; /* FIXED: Hide scrollbar when collapsed */
}

/* Enhanced sidebar hover for collapsed state */
.sidebar.collapsed.hover-expanded {
    width: var(--sidebar-width);
    box-shadow: 4px 0 12px rgba(0,0,0,0.15);
    z-index: 1001;
    overflow-y: auto; /* Re-enable scrollbar when expanded on hover */
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0; /* FIXED: Prevent header from shrinking */
    min-height: 60px; /* Ensure consistent header height */
}

.nav-menu {
    padding: 0;
    list-style: none;
    flex: 1; /* FIXED: Allow menu to take remaining space */
    overflow-y: auto; /* Allow scrolling within nav menu only */
    overflow-x: hidden;
}

.sidebar.collapsed .nav-menu {
    overflow-y: hidden; /* Hide scrolling when collapsed */
}

.sidebar.collapsed.hover-expanded .nav-menu {
    overflow-y: auto; /* Re-enable scrolling on hover */
}

.nav-item {
    display: block;
    padding: 16px 20px;
    color: var(--sidebar-text);
    text-decoration: none;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    transition: background 0.3s ease;
    font-size: 14px;
    position: relative;
    white-space: nowrap; /* FIXED: Prevent text wrapping */
    flex-shrink: 0; /* Prevent nav items from shrinking */
}

.nav-item .icon {
    display: inline-block;
    width: 20px;
    margin-right: 12px;
    text-align: center;
    flex-shrink: 0; /* FIXED: Prevent icon from shrinking */
}

.nav-item .text {
    transition: opacity 0.3s ease;
    display: inline-block;
}

.sidebar.collapsed .nav-item .text {
    opacity: 0;
    pointer-events: none; /* FIXED: Prevent interaction with hidden text */
    width: 0; /* Collapse text width */
    overflow: hidden;
}

.sidebar.collapsed.hover-expanded .nav-item .text {
    opacity: 1;
    pointer-events: auto;
    width: auto;
}

/* Enhanced form styling */
.form-input:invalid {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-input:valid {
    border-color: var(--success-color);
}

/* Enhanced button animations */
.btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Enhanced table styles for results */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-primary);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    margin-top: 16px;
}

.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    word-wrap: break-word;
    max-width: 300px;
}

.data-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-primary);
    position: sticky;
    top: 0;
    z-index: 10;
    user-select: none;
}

.data-table th[onclick] {
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.data-table th[onclick]:hover {
    background: var(--border-color);
}

.data-table td {
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.data-table td:hover {
    background-color: var(--bg-secondary);
    transform: scale(1.02);
}

.data-table td.copyable-cell:hover::after {
    content: '📋';
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.7;
    font-size: 12px;
}

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

/* Search filter highlight */
.highlight {
    background-color: #ffeb3b;
    color: #000;
    padding: 2px 4px;
    border-radius: 3px;
    font-weight: bold;
}

/* Status legend */
.status-legend {
    margin-top: 20px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.status-legend h4 {
    margin-bottom: 12px;
    color: var(--text-primary);
    font-size: 16px;
}

.legend-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 8px;
}

.legend-item {
    padding: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

/* Loading states for share button */
#shareLoading {
    display: none;
}

#shareLoading.show {
    display: inline;
    animation: spin 1s linear infinite;
}

#shareBtn {
    display: inline;
}

#shareBtn.hide {
    display: none;
}

/* Results panel styling */
.results-panel {
    margin-top: 32px;
    background: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    display: none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.results-panel.show {
    display: block;
}

.results-header {
    padding: 20px 24px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.results-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.results-actions {
    display: flex;
    gap: 8px;
}


.export-menu-wrap {
    position: relative;
}

.export-toggle {
    white-space: nowrap;
}

.export-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 220px;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-primary);
    box-shadow: 0 12px 30px rgba(0,0,0,0.14);
    display: none;
    z-index: 40;
}

.export-menu.show {
    display: grid;
    gap: 6px;
}

.export-menu button {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--text-primary);
    text-align: left;
    border-radius: 8px;
    padding: 10px 12px;
    cursor: pointer;
    font-size: 13px;
}

.export-menu button:hover {
    background: var(--bg-secondary);
}

.export-menu-divider {
    height: 1px;
    background: var(--border-color);
    margin: 4px 0;
}

.shared-insights {
    display: grid;
    gap: 16px;
    margin: 24px 0;
}

.shared-summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
}

.shared-summary-card,
.shared-meta-box,
.shared-warning-box {
    border: 1px solid var(--border-color);
    border-radius: 14px;
    background: var(--bg-primary);
    box-shadow: 0 4px 14px rgba(0,0,0,0.06);
}

.shared-summary-card {
    padding: 16px;
}

.shared-summary-label {
    font-size: 12px;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--text-secondary);
    font-weight: 700;
}

.shared-summary-value {
    margin-top: 8px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    word-break: break-word;
}

.shared-meta-box {
    padding: 16px 18px;
    color: var(--text-primary);
    line-height: 1.55;
}

.shared-warning-box {
    padding: 16px 18px;
    border-color: rgba(255, 140, 0, 0.28);
    background: rgba(255, 140, 0, 0.08);
}

.shared-warning-title {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.shared-warning-list {
    margin: 0;
    padding-left: 18px;
    color: var(--text-primary);
}

.shared-warning-list li + li {
    margin-top: 6px;
}

.results-content {
    padding: 0;
}

/* No results message */
.no-results {
    padding: 40px 24px;
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
}

/* Status indicators */
.status-success {
    color: var(--success-color);
    font-weight: 600;
}

.status-danger {
    color: var(--danger-color);
    font-weight: 600;
}

.status-warning {
    color: var(--warning-color);
    font-weight: 600;
}

.status-info {
    color: var(--info-color);
    font-weight: 600;
}

/* Enhanced IP card styling */
/* NEW: Compact IP card styling */
.ip-card {
    text-align: center;
    padding: 48px 32px;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    color: white;
    border-radius: 16px;
    margin: 32px auto;
    max-width: 800px;
    width: 90%;
    box-shadow: 0 8px 32px rgba(0,123,255,0.3);
    display: block;
}

.ip-card:hover {
    transform: translateY(-2px);
}

.ip-number {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    transition: all 0.2s ease;
}

.ip-number:hover {
    transform: scale(1.05);
    text-shadow: 0 4px 8px rgba(0,0,0,0.4);
}

.ip-subtitle {
    font-size: 18px;
    opacity: 0.9;
}

/* Password display styling */
.password-display {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 8px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 18px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 2px dashed var(--border-color);
}

.password-display:hover {
    background: var(--border-color);
    border-color: var(--primary-color);
    transform: scale(1.02);
}

.password-display::after {
    content: ' 📋';
    opacity: 0;
    transition: opacity 0.2s ease;
}

.password-display:hover::after {
    opacity: 1;
}

/* Image converter results styling */
.image-result {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 20px;
    margin-top: 16px;
}

.image-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.image-result-title {
    font-weight: 600;
    color: var(--text-primary);
}

.download-btn {
    background: var(--success-color);
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.download-btn:hover {
    background: #218838;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.image-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 600;
    color: var(--text-secondary);
    margin-right: 16px;
}

.info-value {
    color: var(--text-primary);
    font-weight: 500;
    text-align: right;
}

/* Loading state enhancements */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.loading-text {
    margin-left: 10px;
    color: var(--text-secondary);
}

.loading-spinner {
    display: none;
}

.loading-spinner.show {
    display: inline;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Result panel enhancements */
.results-panel .copy-indicator {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--success-color);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.results-panel .copy-indicator.show {
    opacity: 1;
}

/* Pre-content styling for legacy fallbacks */
.pre-content {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 8px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    line-height: 1.5;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.pre-content:hover {
    background: var(--border-color);
}

/* NOTIFICATION FIX - Ensure notifications are completely hidden by default */
#copyNotification,
#shareNotification,
#pwaNotification {
    display: none !important;
    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
}

/* Show notifications only when explicitly shown */
#copyNotification.show,
#shareNotification.show,
#pwaNotification.show {
    display: block !important;
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* Enhanced mobile styles */
@media (max-width: 480px) {
    .content-wrapper {
        padding: 16px;
    }
    
    .tool-section {
        padding: 20px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .form-input {
        padding: 14px;
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    .btn {
        padding: 14px 20px;
        font-size: 16px;
    }
    
    .data-table {
        font-size: 14px;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px 12px;
    }
    
    .results-header {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }
    
    .results-actions {
        justify-content: center;
    }
    
    .ip-number {
        font-size: 36px;
    }
    
    .password-display {
        font-size: 16px;
        padding: 16px;
    }
    
    /* Mobile notification positioning */
    #copyNotification,
    #shareNotification,
    #pwaNotification {
        left: 10px;
        right: 10px;
        transform: translateY(-100%);
    }
    
    #copyNotification.show,
    #shareNotification.show,
    #pwaNotification.show {
        transform: translateY(0);
    }
    
    /* Mobile sidebar fixes */
    .sidebar {
        overflow-y: auto; /* Always allow scrolling on mobile */
    }
    
    .sidebar.collapsed {
        overflow-y: auto; /* Keep scrolling enabled on mobile even when collapsed */
    }
}

/* Enhanced mobile responsiveness for tables */
@media (max-width: 768px) {
    .data-table {
        font-size: 14px;
    }
    
    .data-table,
    .data-table thead,
    .data-table tbody,
    .data-table th,
    .data-table td,
    .data-table tr {
        display: block;
    }
    
    .data-table thead tr {
        position: absolute;
        top: -9999px;
        left: -9999px;
    }
    
    .data-table tr {
        border: 1px solid var(--border-color);
        border-radius: 8px;
        margin-bottom: 12px;
        padding: 12px;
        background: var(--bg-primary);
    }
    
    .data-table td {
        border: none;
        border-bottom: 1px solid var(--border-color);
        position: relative;
        padding-left: 50% !important;
        white-space: normal;
        text-align: left;
        max-width: none;
    }
    
    .data-table td:before {
        content: attr(data-label) ": ";
        position: absolute;
        left: 6px;
        width: 45%;
        padding-right: 10px;
        white-space: nowrap;
        font-weight: 600;
        color: var(--text-secondary);
        font-size: 12px;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }
    
    .data-table td:last-child {
        border-bottom: none;
    }
    
    /* Mobile image info grid */
    .image-info {
        grid-template-columns: 1fr;
    }
    
    .info-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
    
    .info-value {
        text-align: left;
    }
}

/* Print styles */
@media print {
    .sidebar,
    .top-bar,
    .pwa-banner,
    .notification,
    .mobile-overlay,
    .results-actions,
    #copyNotification,
    #shareNotification,
    #pwaNotification {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0 !important;
    }
    
    .results-panel {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .pre-content,
    .password-display {
        background: #f8f9fa;
        border: 1px solid #dee2e6;
    }
    
    .data-table {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ff;
        --success-color: #008000;
        --danger-color: #ff0000;
        --warning-color: #ff8c00;
        --info-color: #4169e1;
    }
    
    .btn {
        border: 2px solid currentColor;
    }
    
    .form-input {
        border-width: 3px;
    }
    
    .data-table td:hover {
        background-color: #ffff00;
        color: #000000;
    }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .loading-spinner {
        animation: none;
    }
    
    .data-table td:hover {
        transform: none;
    }
    
    .ip-number:hover {
        transform: none;
    }
    
    .password-display:hover {
        transform: none;
    }
    
    .ip-card:hover {
        transform: none;
    }
    
    #copyNotification,
    #shareNotification,
    #pwaNotification {
        transition: none;
    }
}

/* Focus indicators for keyboard navigation */
.nav-item:focus,
.btn:focus,
.form-input:focus,
.toggle-btn:focus,
.data-table td:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
}

.skip-link:focus {
    top: 6px;
}

/* Enhanced error states */
.error-message {
    background: var(--danger-color);
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    margin: 16px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.error-message::before {
    content: '⚠️';
    font-size: 16px;
}

/* Success states */
.success-message {
    background: var(--success-color);
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    margin: 16px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.success-message::before {
    content: '✅';
    font-size: 16px;
}

/* Tooltip styles */
.tooltip {
    position: relative;
    cursor: help;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: var(--bg-primary);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
    z-index: 1000;
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Status indicators with icons */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.status-indicator.online {
    background: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
}

.status-indicator.offline {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
}

.status-indicator.warning {
    background: rgba(255, 193, 7, 0.1);
    color: var(--warning-color);
}

/* Progress bars */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin: 16px 0;
}

.progress-fill {
    height: 100%;
    background: var(--primary-color);
    transition: width 0.3s ease;
    border-radius: 4px;
}

/* Card layouts for results */
.result-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    transition: box-shadow 0.3s ease;
}

.result-card:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.result-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.result-card-title {
    font-weight: 600;
    color: var(--text-primary);
}

.result-card-meta {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Responsive grid for cards */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
    margin-top: 24px;
}

/* Additional notification styling enhancements */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    z-index: 2000;
    max-width: 300px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.notification.copy {
    background: var(--success-color);
    color: white;
}

.notification.share {
    background: var(--info-color);
    color: white;
}

/* Ensure proper stacking and positioning */
#copyNotification {
    z-index: 2001;
}

#shareNotification {
    z-index: 2002;
}

#pwaNotification {
    z-index: 2003;
}

@media (max-width: 768px) {
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    /* Mobile-specific table improvements */
    .data-table td:before {
        font-size: 12px;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }
    
    .data-table td {
        padding-top: 12px;
        padding-bottom: 12px;
    }
    
    .data-table tr:last-child td:last-child {
        border-bottom: none;
    }
}

/* Custom scrollbar styling for webkit browsers */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: rgba(255,255,255,0.1);
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.3);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.5);
}

.sidebar.collapsed::-webkit-scrollbar {
    width: 0px; /* Hide scrollbar when collapsed */
}

.nav-menu::-webkit-scrollbar {
    width: 4px;
}

.nav-menu::-webkit-scrollbar-track {
    background: transparent;
}

.nav-menu::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.2);
    border-radius: 2px;
}

/* Firefox scrollbar styling */
.sidebar {
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.3) rgba(255,255,255,0.1);
}

.sidebar.collapsed {
    scrollbar-width: none; /* Hide scrollbar when collapsed */
}

/* Ensure nav menu scrolling works properly */
.nav-menu {
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.2) transparent;
}

@media (max-width: 768px) {
    .export-menu {
        left: 0;
        right: auto;
        min-width: 200px;
    }

    .shared-summary-grid {
        grid-template-columns: 1fr;
    }
}

/* ==============================
   Phase 1 UI
   ============================== */
.optional-text {
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
}

.phase-results-stack {
    display: grid;
    gap: 18px;
    padding: 18px;
}

.phase-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 14px;
}

.phase-metric-card,
.phase-section-card,
.phase-warning-box {
    border: 1px solid var(--border-color);
    border-radius: 14px;
    background: var(--bg-primary);
    box-shadow: 0 4px 14px rgba(0,0,0,0.06);
}

.phase-metric-card {
    padding: 16px;
}

.phase-metric-card-success {
    border-color: rgba(40, 167, 69, 0.28);
    background: rgba(40, 167, 69, 0.08);
}

.phase-metric-card-warning {
    border-color: rgba(255, 193, 7, 0.28);
    background: rgba(255, 193, 7, 0.09);
}

.phase-metric-card-danger {
    border-color: rgba(220, 53, 69, 0.28);
    background: rgba(220, 53, 69, 0.08);
}

.phase-metric-label {
    font-size: 12px;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--text-secondary);
    font-weight: 700;
}

.phase-metric-value {
    margin-top: 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    word-break: break-word;
}

.phase-warning-box {
    padding: 16px 18px;
    border-color: rgba(255, 140, 0, 0.28);
    background: rgba(255, 140, 0, 0.08);
}

.phase-warning-title,
.phase-section-title {
    font-weight: 700;
    color: var(--text-primary);
}

.phase-warning-title {
    margin-bottom: 10px;
}

.phase-warning-list {
    margin: 0;
    padding-left: 18px;
    color: var(--text-primary);
}

.phase-warning-list li + li {
    margin-top: 6px;
}

.phase-section-card {
    padding: 16px;
}

.phase-section-title {
    margin-bottom: 12px;
}

.phase-status-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 74px;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    border: 1px solid currentColor;
    background: rgba(255,255,255,0.6);
}

.phase-badge-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.phase-badge {
    display: inline-flex;
    align-items: center;
    padding: 7px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.phase-badge-success {
    color: var(--success-color);
    border-color: rgba(40, 167, 69, 0.28);
    background: rgba(40, 167, 69, 0.08);
}

.phase-badge-danger {
    color: var(--danger-color);
    border-color: rgba(220, 53, 69, 0.28);
    background: rgba(220, 53, 69, 0.08);
}

.phase-badge-info {
    color: var(--info-color);
    border-color: rgba(23, 162, 184, 0.28);
    background: rgba(23, 162, 184, 0.08);
}

.phase-badge-neutral {
    color: var(--text-primary);
}


.phase-inline-note {
    color: var(--text-secondary);
    font-size: 12px;
}

.phase-header-list {
    display: grid;
    gap: 8px;
    min-width: 220px;
}

.phase-header-row {
    display: grid;
    gap: 4px;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-secondary);
}

.phase-header-key {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: .04em;
}

.phase-header-value {
    font-size: 12px;
    color: var(--text-primary);
    word-break: break-word;
}


/* Phase 1 UI menu enhancements */
.sidebar-header {
    position: sticky;
    top: 0;
    z-index: 5;
    background: var(--sidebar-bg);
    backdrop-filter: blur(10px);
}

.sidebar-brand {
    display: grid;
    gap: 2px;
    min-width: 0;
}

.sidebar-subtitle {
    font-size: 11px;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.68);
    font-weight: 700;
}

.sidebar-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-search-wrap {
    padding: 14px 14px 12px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    position: sticky;
    top: 77px;
    z-index: 4;
    background: linear-gradient(180deg, rgba(0,0,0,0.16), rgba(0,0,0,0.04));
    backdrop-filter: blur(10px);
}

.nav-search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 42px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.12);
    background: rgba(255,255,255,0.08);
    padding: 0 10px;
}

.nav-search-icon {
    flex-shrink: 0;
    opacity: 0.82;
}

.nav-search-input {
    flex: 1;
    border: none;
    background: transparent;
    color: #fff;
    font-size: 14px;
    min-width: 0;
    outline: none;
}

.nav-search-input::placeholder {
    color: rgba(255,255,255,0.58);
}

.nav-search-clear,
.mobile-close-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 999px;
    cursor: pointer;
    transition: background .2s ease, transform .2s ease;
}

.nav-search-clear {
    visibility: hidden;
    opacity: 0;
    background: rgba(255,255,255,0.12);
    color: #fff;
}

.nav-search-clear.show {
    visibility: visible;
    opacity: 1;
}

.nav-search-clear:hover,
.mobile-close-btn:hover {
    background: rgba(255,255,255,0.18);
    transform: translateY(-1px);
}

.mobile-close-btn {
    display: none;
    background: rgba(255,255,255,0.12);
    color: #fff;
}

.nav-group {
    padding: 10px 10px 0;
}

.nav-group + .nav-group {
    margin-top: 4px;
}

.nav-group-hidden {
    display: none;
}

.nav-group-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    border: none;
    background: transparent;
    color: rgba(255,255,255,0.76);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .1em;
    font-weight: 800;
    cursor: pointer;
    border-radius: 10px;
}

.nav-group-toggle:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
}

.nav-group-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-group-chevron {
    transition: transform .2s ease;
    font-size: 12px;
    flex-shrink: 0;
}

.nav-group.collapsed .nav-group-chevron {
    transform: rotate(-90deg);
}

.nav-group-items {
    display: grid;
    gap: 2px;
    padding: 4px 0 2px;
}

.nav-group.collapsed .nav-group-items {
    display: none;
}

.nav-item {
    border-radius: 12px;
}

.nav-item:hover,
.nav-item.active {
    background: rgba(255,255,255,0.12);
}

.nav-item.active {
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.16);
}

.sidebar.collapsed .sidebar-subtitle,
.sidebar.collapsed .nav-search-wrap,
.sidebar.collapsed .nav-group-toggle {
    opacity: 0;
    pointer-events: none;
    height: 0;
    padding-top: 0;
    padding-bottom: 0;
    overflow: hidden;
    border: none;
}

.sidebar.collapsed.hover-expanded .sidebar-subtitle,
.sidebar.collapsed.hover-expanded .nav-search-wrap,
.sidebar.collapsed.hover-expanded .nav-group-toggle {
    opacity: 1;
    pointer-events: auto;
    height: auto;
    border-bottom-width: 1px;
}

.sidebar.collapsed .nav-group {
    padding-left: 6px;
    padding-right: 6px;
}

.sidebar.collapsed.hover-expanded .nav-group {
    padding-left: 10px;
    padding-right: 10px;
}

body.menu-open {
    overflow: hidden;
}

.phase-section-card .data-table {
    margin-top: 0;
}

@media (max-width: 768px) {
    .sidebar {
        width: min(88vw, 340px);
        box-shadow: 10px 0 24px rgba(0,0,0,0.2);
    }

    .sidebar-header {
        padding-top: calc(20px + env(safe-area-inset-top, 0px));
    }

    .nav-search-wrap {
        top: calc(76px + env(safe-area-inset-top, 0px));
    }

    .mobile-close-btn {
        display: inline-flex;
    }

    .toggle-btn {
        display: none;
    }

    .mobile-menu-btn {
        padding: 10px 16px;
        border-radius: 10px;
        font-weight: 700;
        box-shadow: 0 6px 14px rgba(0,0,0,0.14);
    }

    .nav-group {
        padding-left: 12px;
        padding-right: 12px;
    }

    .nav-item {
        padding-top: 15px;
        padding-bottom: 15px;
        font-size: 15px;
    }

    .top-bar {
        position: sticky;
        top: 0;
        z-index: 30;
        background: rgba(255,255,255,0.92);
        backdrop-filter: blur(12px);
    }

    body.theme-dark .top-bar,
    body.theme-black .top-bar,
    body.theme-ocean .top-bar,
    body.theme-matrix .top-bar,
    body.theme-purple .top-bar {
        background: rgba(18,18,18,0.9);
    }
}

@media (min-width: 769px) {
    .mobile-close-btn {
        display: none !important;
    }

    .nav-menu {
        padding-bottom: 18px;
    }

    .main-content {
        min-width: 0;
    }
}


/* Phase 1 mobile/header follow-up tuning */
.top-bar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 14px;
}

.page-title {
    min-width: 0;
    margin: 0;
    line-height: 1.08;
}

.mobile-menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    white-space: nowrap;
}

.mobile-menu-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    line-height: 1;
}

.mobile-menu-label {
    line-height: 1;
}

.theme-switcher {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.theme-toggle-btn {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.theme-toggle-btn:hover,
.theme-toggle-btn:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(0,0,0,0.10);
    border-color: var(--primary-color);
    outline: none;
}

.theme-toggle-icon {
    font-size: 20px;
    line-height: 1;
}

.theme-popover {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: min(260px, calc(100vw - 32px));
    display: none;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    background: var(--bg-primary);
    box-shadow: 0 18px 38px rgba(0,0,0,0.18);
    z-index: 80;
}

.theme-switcher.open .theme-popover {
    display: block;
}

.theme-popover-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.theme-popover-title {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .05em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.theme-popover-close {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 999px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
}

.theme-option-grid {
    display: grid;
    gap: 8px;
}

.theme-option-btn {
    width: 100%;
    display: grid;
    grid-template-columns: 18px 1fr;
    align-items: center;
    gap: 10px;
    padding: 11px 12px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    text-align: left;
    cursor: pointer;
    transition: border-color .18s ease, background-color .18s ease, transform .18s ease;
}

.theme-option-btn:hover,
.theme-option-btn:focus-visible {
    border-color: var(--primary-color);
    background: var(--bg-secondary);
    transform: translateY(-1px);
    outline: none;
}

.theme-option-btn.is-active {
    border-color: var(--primary-color);
    box-shadow: inset 0 0 0 1px rgba(0,123,255,0.16);
    background: var(--bg-secondary);
}

.theme-option-text {
    font-size: 14px;
    font-weight: 600;
}

.theme-swatch {
    width: 16px;
    height: 16px;
    border-radius: 999px;
    display: inline-block;
    border: 1px solid rgba(0,0,0,0.15);
}

.swatch-default { background: linear-gradient(135deg, #ffffff, #dfe7f4); }
.swatch-dark { background: linear-gradient(135deg, #121212, #3b3b3b); border-color: rgba(255,255,255,0.18); }
.swatch-blue { background: linear-gradient(135deg, #1976d2, #66a6ff); border-color: rgba(255,255,255,0.18); }
.swatch-terminal { background: linear-gradient(135deg, #050505, #00ff66); border-color: rgba(255,255,255,0.18); }
.swatch-purple { background: linear-gradient(135deg, #673ab7, #c09bff); border-color: rgba(255,255,255,0.18); }

.action-button-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

body.theme-dark .theme-toggle-btn,
body.theme-blue .theme-toggle-btn,
body.theme-terminal .theme-toggle-btn,
body.theme-purple .theme-toggle-btn,
body.theme-dark .theme-popover,
body.theme-blue .theme-popover,
body.theme-terminal .theme-popover,
body.theme-purple .theme-popover {
    box-shadow: 0 18px 38px rgba(0,0,0,0.28);
}

@media (max-width: 768px) {
    .top-bar {
        padding: 12px 14px;
        gap: 10px;
        grid-template-columns: auto minmax(0, 1fr) auto;
    }

    .page-title {
        font-size: 18px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .mobile-menu-btn {
        min-width: 46px;
        min-height: 42px;
        padding: 8px 12px;
        border-radius: 12px;
        font-weight: 700;
    }

    .mobile-menu-label {
        font-size: 14px;
    }

    .theme-toggle-btn {
        width: 42px;
        height: 42px;
        border-radius: 12px;
    }

    .theme-popover {
        position: fixed;
        top: calc(72px + env(safe-area-inset-top, 0px));
        right: 12px;
        left: auto;
        width: min(280px, calc(100vw - 24px));
    }
}

@media (max-width: 480px) {
    .content-wrapper {
        padding: 12px;
    }

    .top-bar {
        padding: 10px 12px;
        gap: 8px;
    }

    .page-title {
        font-size: 17px;
    }

    .mobile-menu-btn {
        min-width: 40px;
        min-height: 40px;
        padding: 8px 10px;
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.10);
    }

    .mobile-menu-label {
        display: none;
    }

    .theme-toggle-btn {
        width: 40px;
        height: 40px;
        border-radius: 10px;
    }

    .tool-section {
        padding: 18px;
    }

    .section-title {
        font-size: 22px;
        margin-bottom: 18px;
    }

    .action-button-row {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: stretch;
    }

    .action-button-row .btn {
        width: 100%;
        justify-content: center;
    }

    .action-button-row .btn.btn-secondary {
        white-space: nowrap;
        min-width: 110px;
    }
}


body.modal-open {
    overflow: hidden;
}

.share-modal {
    position: fixed;
    inset: 0;
    display: none;
    z-index: 2000;
}

.share-modal.show {
    display: block;
}

.share-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.58);
    backdrop-filter: blur(2px);
}

.share-modal-dialog {
    position: relative;
    width: min(92vw, 560px);
    margin: min(12vh, 96px) auto 24px;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.25);
    overflow: hidden;
}

.share-modal-header,
.share-modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 22px;
}

.share-modal-header {
    border-bottom: 1px solid var(--border-color);
}

.share-modal-body {
    padding: 22px;
    display: grid;
    gap: 18px;
}

.share-modal-title {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
}

.share-modal-subtitle {
    margin: 6px 0 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.share-modal-close {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 999px;
}

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

.share-modal-summary {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 14px 16px;
}

.share-modal-summary-label {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.share-modal-summary-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    word-break: break-word;
}

.share-notes-input {
    min-height: 132px;
    resize: vertical;
}

.share-filter-option {
    display: grid;
    grid-template-columns: 18px minmax(0, 1fr);
    gap: 12px;
    align-items: flex-start;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    background: var(--bg-secondary);
    cursor: pointer;
}

.share-filter-option:hover {
    border-color: var(--accent-color);
}

.share-filter-checkbox {
    margin-top: 2px;
    width: 16px;
    height: 16px;
    accent-color: var(--accent-color);
    cursor: pointer;
}

.share-filter-copy {
    display: grid;
    gap: 4px;
}

.share-filter-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.share-filter-help {
    font-size: 0.86rem;
    color: var(--text-secondary);
    line-height: 1.45;
}

.share-modal-help {
    margin-top: 8px;
    font-size: 0.86rem;
    color: var(--text-secondary);
}

.share-modal-footer {
    border-top: 1px solid var(--border-color);
    justify-content: flex-end;
}

@media (max-width: 768px) {
    .share-modal-dialog {
        width: min(94vw, 560px);
        margin: 8vh auto 16px;
        border-radius: 16px;
    }

    .share-modal-header,
    .share-modal-footer,
    .share-modal-body {
        padding-left: 16px;
        padding-right: 16px;
    }

    .share-modal-footer {
        flex-direction: column-reverse;
        align-items: stretch;
    }

    .share-modal-footer .btn {
        width: 100%;
    }

    .share-filter-option {
        grid-template-columns: 18px minmax(0, 1fr);
        padding: 12px 14px;
    }
}