* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #1a1a1f;
    --color-bg-tertiary: #0f0f14;
    --color-border: #2a2a2f;
    --color-border-light: #3a3a3f;
    --color-text-primary: #e0e0e0;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #8a8a9a;
    --color-accent-purple: #667eea;
    --color-accent-pink: #f093fb;
    --color-accent-cyan: #00d4ff;
    --color-accent-green: #00ff9f;
    --color-accent-yellow: #ffbd2e;
    --color-accent-red: #ff5f56;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
}

body {
    font-family: 'Courier New', 'Courier', monospace;
    background: var(--color-bg-primary);
    color: var(--color-accent-green);
    padding: var(--spacing-xl);
    min-height: 100vh;
}

/* View transition animations */
.feed-sources,
.news-feed {
    transition: opacity 0.3s ease-in-out;
}

.fade-out {
    opacity: 0;
}

.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

.terminal-container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--color-bg-secondary);
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.terminal-header {
    background: var(--color-bg-border);
    padding: 0.75rem var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--color-border-light);
}

.terminal-buttons {
    display: flex;
    gap: 0.5rem;
}

.terminal-buttons span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: block;
}

.btn-close {
    background: #ff5f56;
}

.btn-minimize {
    background: #ffbd2e;
}

.btn-maximize {
    background: #27c93f;
}

.terminal-title {
    color: #8a8a9a;
    font-size: 0.9rem;
}

.terminal-body {
    padding: 2rem;
    background: #0f0f14;
}

.terminal-prompt {
    margin-bottom: 2rem;
    font-size: 1rem;
    line-height: 1.5;
}

.prompt-user {
    color: #667eea;
}

.prompt-separator {
    color: #8a8a9a;
}

.prompt-path {
    color: #00ff9f;
}

.prompt-symbol {
    color: #f093fb;
    margin: 0 0.5rem;
}

.prompt-command {
    color: #00d4ff;
}

.feed-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #2a2a2f;
    flex-wrap: wrap;
    gap: 1rem;
}

.header-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.feed-info {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.feed-label {
    color: #667eea;
    font-size: 0.85rem;
}

.status-loading {
    color: #ffbd2e;
    animation: pulse 1.5s infinite;
}

.status-active {
    color: #27c93f;
}

.status-error {
    color: #ff5f56;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

#lastUpdate {
    color: #00d4ff;
    font-size: 0.85rem;
}

.refresh-btn {
    background: transparent;
    border: 1px solid #667eea;
    color: #667eea;
    padding: 0.5rem 1rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.85rem;
}

.view-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.3);
    color: var(--color-text-muted);
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
}

.view-btn:hover {
    background: rgba(102, 126, 234, 0.2);
    border-color: var(--color-accent-purple);
    color: var(--color-accent-cyan);
    transform: translateY(-1px);
}

.view-btn.active {
    background: linear-gradient(135deg, var(--color-accent-purple) 0%, #764ba2 100%);
    border-color: transparent;
    color: white;
    box-shadow: 0 3px 10px rgba(102, 126, 234, 0.4);
    transform: translateY(0);
}

.refresh-btn:hover {
    background: rgba(102, 126, 234, 0.2);
    border-color: #00d4ff;
    color: #00d4ff;
}

.feed-sources {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    align-items: center;
}

.source-label {
    color: #f093fb;
    font-size: 0.85rem;
    margin-right: 0.5rem;
}

.source-btn {
    background: transparent;
    border: 1px solid #3a3a3f;
    color: #8a8a9a;
    padding: 0.4rem 1rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.85rem;
}

.source-btn:hover {
    border-color: #667eea;
    color: #00d4ff;
}

.source-btn.active {
    background: rgba(102, 126, 234, 0.2);
    border-color: #667eea;
    color: #00ff9f;
}

.stats-dashboard {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding: 0.75rem 1rem;
    background: rgba(102, 126, 234, 0.05);
    border: 1px solid #2a2a2f;
    border-radius: 4px;
    flex-wrap: wrap;
    align-items: center;
}

.stat-item {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

.stat-label {
    font-size: 0.7rem;
    color: #667eea;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    font-size: 1rem;
    color: #00ff9f;
    font-weight: bold;
}

.stat-cve {
    color: #00d4ff;
}

.stat-critical {
    color: #ff5f56;
}

/* Trends Panel */
.trends-panel {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(102, 126, 234, 0.08);
    border: 1px solid #667eea;
    border-radius: 4px;
    animation: fadeIn 0.3s ease;
}

.trends-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.trends-section {
    background: rgba(0, 0, 0, 0.2);
    padding: 1rem;
    border-radius: 4px;
}

.trends-title {
    font-size: 0.85rem;
    color: #667eea;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.trend-item {
    margin-bottom: 0.75rem;
}

.trend-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
    font-size: 0.85rem;
}

.trend-keyword {
    color: #00ff9f;
    font-weight: bold;
}

.trend-cve-link {
    color: #00d4ff;
    text-decoration: none;
    font-weight: bold;
}

.trend-cve-link:hover {
    text-decoration: underline;
}

/* Clickable trend filters */
.trend-cve-filter,
.trend-keyword-filter {
    color: #00d4ff;
    font-weight: bold;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
    display: inline-block;
}

.trend-cve-filter {
    background: rgba(0, 212, 255, 0.1);
}

.trend-keyword-filter {
    color: #00ff9f;
    background: rgba(0, 255, 159, 0.1);
}

.trend-cve-filter:hover,
.trend-keyword-filter:hover {
    transform: translateX(3px);
    background: rgba(0, 212, 255, 0.2);
}

.trend-keyword-filter:hover {
    background: rgba(0, 255, 159, 0.2);
}

/* NVD link next to CVE */
.trend-nvd-link {
    color: #667eea;
    text-decoration: none;
    font-size: 0.7rem;
    margin-left: 0.5rem;
    padding: 0.15rem 0.35rem;
    border: 1px solid #667eea;
    border-radius: 3px;
    transition: all 0.2s ease;
    font-weight: bold;
}

.trend-nvd-link:hover {
    background: rgba(102, 126, 234, 0.2);
    border-color: #764ba2;
    transform: translateY(-1px);
}

.trend-count {
    color: #ffbd2e;
    font-weight: bold;
}

.trend-bar-container {
    height: 8px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    overflow: hidden;
}

.trend-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.trend-bar-cve {
    background: linear-gradient(90deg, #667eea, #00d4ff);
}

.trend-bar-keyword {
    background: linear-gradient(90deg, #00ff9f, #00d4ff);
}

.trends-empty {
    text-align: center;
    color: #8a8a9a;
    padding: 2rem;
    font-style: italic;
}

.keyword-critical {
    color: #ff5f56;
    font-weight: bold;
    background: rgba(255, 95, 86, 0.1);
    padding: 0.1rem 0.3rem;
    border-radius: 2px;
}

.keyword-high {
    color: #ffbd2e;
    font-weight: bold;
    background: rgba(255, 189, 46, 0.1);
    padding: 0.1rem 0.3rem;
    border-radius: 2px;
}

.cve-link {
    color: #00d4ff;
    font-weight: bold;
    text-decoration: none;
    background: rgba(0, 212, 255, 0.1);
    padding: 0.1rem 0.4rem;
    border-radius: 2px;
    border: 1px solid rgba(0, 212, 255, 0.3);
    transition: all 0.3s ease;
}

.cve-link:hover {
    background: rgba(0, 212, 255, 0.2);
    border-color: #00d4ff;
    transform: translateY(-1px);
}

.search-container {
    margin-bottom: 1.5rem;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: #1a1a1f;
    border: 1px solid #3a3a3f;
    border-radius: 4px;
    color: #00ff9f;
    font-family: 'Courier New', 'Courier', monospace;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: #667eea;
    background: #1f1f24;
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.3);
}

.search-input::placeholder {
    color: #4a4a5a;
    font-style: italic;
}

.search-results-count {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: #667eea;
}

.news-feed {
    min-height: 400px;
}

.loading-indicator {
    text-align: center;
    padding: 3rem;
    color: #667eea;
}

.spinner {
    font-size: 0.9rem;
    margin-bottom: 1rem;
    color: #00d4ff;
}

.loading-text {
    color: #8a8a9a;
    font-size: 0.9rem;
}

.news-item {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    animation: fadeIn 0.5s ease-out;
    border-radius: 4px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.news-item:hover {
    background: rgba(102, 126, 234, 0.05);
    border-color: rgba(102, 126, 234, 0.3);
    transform: translateX(4px);
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.news-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    flex-wrap: wrap;
    align-items: center;
}

.bookmark-btn {
    background: transparent;
    border: none;
    color: #8a8a9a;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.2rem 0.5rem;
    transition: all 0.3s ease;
    margin-left: auto;
}

.bookmark-btn:hover {
    color: #ffbd2e;
    transform: scale(1.2);
}

.bookmark-btn.bookmarked {
    color: #ffbd2e;
}

.bookmark-btn.bookmarked:hover {
    color: #ff5f56;
}

.news-time {
    color: #667eea;
}

.news-source {
    color: #f093fb;
}

.article-type-badge {
    font-size: 0.75rem;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-weight: bold;
    margin-left: 0.5rem;
}

.article-type-news {
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid rgba(102, 126, 234, 0.5);
    color: #667eea;
}

.article-type-intel {
    background: rgba(255, 189, 46, 0.2);
    border: 1px solid rgba(255, 189, 46, 0.5);
    color: #ffbd2e;
}

.news-title {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.news-title a {
    color: #00ff9f;
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-title a:hover {
    color: #00d4ff;
    text-decoration: underline;
}

.news-description {
    color: #8a8a9a;
    font-size: 0.9rem;
    line-height: 1.6;
    margin-top: 0.5rem;
}

.terminal-footer {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid #2a2a2f;
}

.back-link {
    color: #667eea;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: #00d4ff;
}

/* Keyboard Shortcuts Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: #1a1a1f;
    border: 2px solid #667eea;
    border-radius: 8px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.5);
    position: relative;
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    color: #8a8a9a;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close-modal:hover {
    color: #ff5f56;
}

.modal-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
}

.shortcuts-grid {
    display: grid;
    gap: 1rem;
}

.shortcut-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background: rgba(102, 126, 234, 0.05);
    border: 1px solid #2a2a2f;
    border-radius: 4px;
}

.shortcut-item kbd {
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid #667eea;
    border-radius: 4px;
    padding: 0.25rem 0.75rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: #00ff9f;
    min-width: 40px;
    text-align: center;
}

.shortcut-item span {
    color: #a0a0b0;
    font-size: 0.95rem;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent-purple) 0%, #764ba2 100%);
    border: none;
    color: white;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-to-top.visible {
    display: flex;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.6);
}

/* Loading Skeleton */
.skeleton {
    background: linear-gradient(90deg, 
        rgba(102, 126, 234, 0.05) 25%, 
        rgba(102, 126, 234, 0.1) 50%, 
        rgba(102, 126, 234, 0.05) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 4px;
}

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

.skeleton-item {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
}

.skeleton-meta {
    height: 1rem;
    width: 40%;
    margin-bottom: var(--spacing-sm);
}

.skeleton-title {
    height: 1.5rem;
    width: 80%;
    margin-bottom: var(--spacing-sm);
}

.skeleton-description {
    height: 1rem;
    width: 90%;
}

.error-message {
    background: rgba(255, 95, 86, 0.1);
    border: 1px solid #ff5f56;
    color: #ff5f56;
    padding: 1rem;
    border-radius: 4px;
    margin: 1rem 0;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    body {
        padding: 1rem;
    }
    
    .terminal-body {
        padding: 1rem;
    }
    
    .terminal-prompt {
        font-size: 0.85rem;
    }
    
    .feed-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-controls {
        width: 100%;
        justify-content: space-between;
    }
    
    .view-btn {
        flex: 1;
    }
    
    .feed-sources {
        width: 100%;
    }
    
    .source-btn {
        flex: 1;
        min-width: 70px;
    }
    
    .stats-dashboard {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
        padding: 0.75rem;
    }
    
    .stat-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    .stat-value {
        font-size: 0.9rem;
    }
    
    .news-title {
        font-size: 1rem;
    }
}

/* iPhone and small phone optimization (portrait mode) */
@media (max-width: 480px) {
    body {
        padding: 0.5rem;
        font-size: 14px;
    }
    
    .terminal-container {
        border-radius: 8px;
        margin: 0;
    }
    
    .terminal-body {
        padding: 0.75rem;
    }
    
    .terminal-prompt {
        font-size: 0.75rem;
        flex-wrap: wrap;
    }
    
    /* Header improvements */
    .feed-header {
        gap: 0.75rem;
        margin-bottom: 1rem;
    }
    
    .feed-info {
        font-size: 0.75rem;
        flex-wrap: wrap;
    }
    
    .header-controls {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .view-btn,
    .refresh-btn {
        font-size: 0.75rem;
        padding: 0.5rem 0.75rem;
        min-height: 44px; /* iOS touch target minimum */
    }
    
    /* Stats - single column on small screens */
    .stats-dashboard {
        grid-template-columns: 1fr;
        gap: 0.5rem;
        padding: 0.5rem;
        font-size: 0.85rem;
    }
    
    .stat-item {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .stat-label {
        font-size: 0.65rem;
    }
    
    .stat-value {
        font-size: 0.85rem;
    }
    
    /* Trends panel mobile */
    .trends-panel {
        padding: 0.75rem;
    }
    
    .trends-content {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .trends-title {
        font-size: 0.75rem;
    }
    
    .trend-label {
        font-size: 0.75rem;
    }
    
    /* Search */
    .search-input {
        font-size: 0.85rem;
        padding: 0.75rem;
    }
    
    /* Source buttons - stack better */
    .feed-sources {
        gap: 0.5rem;
    }
    
    .source-label {
        font-size: 0.65rem;
        width: 100%;
        margin-bottom: 0.25rem;
    }
    
    .source-btn {
        font-size: 0.65rem;
        padding: 0.5rem 0.6rem;
        min-width: auto;
        flex: 0 1 auto;
        min-height: 36px; /* Smaller but still tappable */
    }
    
    /* Articles */
    .news-item {
        padding: 0.75rem;
        margin-bottom: 0.75rem;
    }
    
    .news-meta {
        font-size: 0.7rem;
        gap: 0.5rem;
    }
    
    .news-title {
        font-size: 0.9rem;
        line-height: 1.4;
    }
    
    .news-description {
        font-size: 0.8rem;
        line-height: 1.5;
    }
    
    /* Bookmark button - bigger touch target */
    .bookmark-btn {
        font-size: 1.4rem;
        padding: 0.5rem;
        min-width: 44px;
        min-height: 44px;
    }
    
    /* Back to top button */
    .back-to-top {
        width: 44px;
        height: 44px;
        bottom: 1rem;
        right: 1rem;
    }
    
    /* Modal adjustments */
    .modal-content {
        width: 95%;
        padding: 1rem;
        max-height: 90vh;
        overflow-y: auto;
    }
    
    .modal-title {
        font-size: 1.2rem;
        margin-bottom: 1rem;
    }
    
    .shortcuts-grid {
        gap: 0.5rem;
    }
    
    .shortcut-item {
        padding: 0.5rem;
        font-size: 0.85rem;
    }
    
    .shortcut-item kbd {
        font-size: 0.8rem;
        min-width: 32px;
        padding: 0.2rem 0.5rem;
    }
}