:root {
    --bg-primary: #fafafa;
    --bg-secondary: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    --border-color: #e5e5e5;
    --accent-blue: #2563eb;
    --accent-green: #10b981;
    --accent-orange: #f59e0b;
    --accent-red: #ef4444;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.08);
}

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

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.header-time {
    font-family: 'JetBrains Mono', monospace;
    font-size: 2.5rem;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.header-date {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Grid Layout */
.grid-container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Widget Base */
.widget {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.widget:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--text-tertiary);
}

/* Widget Layouts */
.widget-news {
    grid-column: span 4;
    grid-row: span 2;
}

.widget-mail {
    grid-column: span 4;
    grid-row: span 2;
}

.widget-crypto {
    grid-column: span 4;
    grid-row: span 2;
}

.widget-economy {
    grid-column: span 4;
    grid-row: span 2;
}

.widget-culture {
    grid-column: span 8;
    grid-row: span 2;
}

/* Widget Header */
.widget-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.widget-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.update-indicator {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    padding: 0.25rem 0.5rem;
    background: var(--bg-primary);
    border-radius: 4px;
}

.update-indicator.active {
    color: var(--accent-green);
    animation: pulse 2s infinite;
}

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

/* Widget Content */
.widget-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.widget-content::-webkit-scrollbar {
    width: 6px;
}

.widget-content::-webkit-scrollbar-track {
    background: transparent;
}

.widget-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.widget-content::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* Loading State */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

/* News Item */
.news-item {
    padding: 0.875rem 0;
    border-bottom: 1px solid var(--bg-primary);
    transition: all 0.2s ease;
    animation: slideIn 0.4s ease;
}

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

.news-item:hover {
    padding-left: 0.5rem;
}

.news-item-title {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.375rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-item-meta {
    display: flex;
    gap: 0.75rem;
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

.news-source {
    font-weight: 500;
    color: var(--accent-blue);
}

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

/* Mail Item */
.mail-item {
    padding: 0.875rem 0;
    border-bottom: 1px solid var(--bg-primary);
    transition: all 0.2s ease;
    cursor: pointer;
}

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

.mail-item:hover {
    padding-left: 0.5rem;
}

.mail-item.unread {
    background: rgba(37, 99, 235, 0.03);
    padding: 0.875rem;
    margin: 0 -0.5rem;
    border-radius: 6px;
}

.mail-subject {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.mail-item.unread .mail-subject {
    font-weight: 600;
}

.mail-from {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.mail-time {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-top: 0.25rem;
}

/* Crypto Item */
.crypto-grid {
    display: grid;
    gap: 1rem;
}

.crypto-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.crypto-item:hover {
    background: var(--border-color);
}

.crypto-symbol {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.crypto-price {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.crypto-change {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.crypto-change.positive {
    color: var(--accent-green);
    background: rgba(16, 185, 129, 0.1);
}

.crypto-change.negative {
    color: var(--accent-red);
    background: rgba(239, 68, 68, 0.1);
}

.crypto-stats {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.crypto-stat {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    font-size: 0.875rem;
}

.crypto-stat-label {
    color: var(--text-secondary);
}

.crypto-stat-value {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
    color: var(--text-primary);
}

/* Culture Item */
.culture-item {
    padding: 0.875rem 0;
    border-bottom: 1px solid var(--bg-primary);
    transition: all 0.2s ease;
}

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

.culture-item:hover {
    padding-left: 0.5rem;
}

.culture-title {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.375rem;
}

.culture-meta {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.culture-rating {
    display: inline-block;
    margin-left: 0.5rem;
    color: var(--accent-orange);
    font-weight: 600;
}

/* Footer */
.footer {
    text-align: center;
    padding: 1rem;
    color: var(--text-tertiary);
    font-size: 0.8125rem;
    border-top: 1px solid var(--border-color);
}

/* Responsive Design */
@media (max-width: 1400px) {
    .widget-news,
    .widget-mail,
    .widget-crypto,
    .widget-economy {
        grid-column: span 6;
    }
    
    .widget-culture {
        grid-column: span 12;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .header-time {
        font-size: 1.75rem;
    }
    
    .grid-container {
        gap: 1rem;
    }
    
    .widget-news,
    .widget-mail,
    .widget-crypto,
    .widget-economy,
    .widget-culture {
        grid-column: span 12;
        grid-row: span 1;
    }
    
    .widget {
        padding: 1rem;
    }
}