/* GitHub Contributions Section - Exact GitHub Style */
.github-contributions {
    padding: 2rem 0;
    background: var(--bg-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.contributions-container {
    max-width: 896px;
    margin: 0 auto;
    padding: 0 16px;
    margin-left: 200px;
}

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

.contributions-header h2 {
    font-size: 30px;
    align-items: center;
    padding-left: 220px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.contributions-calendar {
    position: relative;
}

.contributions-graph {
    display: flex;
    gap: 3px;
    margin-bottom: 16px;
    padding: 16px 0;
    overflow-x: auto;
}

.contributions-months {
    display: flex;
    justify-content: space-between;
    padding: 0 16px;
    margin-bottom: 4px;
    font-size: 12px;
    color: var(--text-secondary);
}

.month-label {
    flex: 1;
    text-align: center;
}

.contributions-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 4px;
}

.contributions-days {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding-top: 24px;
    font-size: 12px;
    color: var(--text-secondary);
    text-align: right;
    padding-right: 8px;
}

.day-label {
    height: 15px;
    line-height: 15px;
}

.contributions-squares {
    display: grid;
    grid-template-columns: repeat(53, 15px);
    grid-template-rows: repeat(7, 15px);
    gap: 3px;
}

.contribution-day {
    width: 15px;
    height: 15px;
    border-radius: 2px;
    background: #ebedf0;
    position: relative;
    cursor: pointer;
    transition: all 0.1s ease;
}

.contribution-day:hover {
    border: 1px solid rgba(0, 0, 0, 0.5);
    transform: scale(1.1);
}

/* GitHub's exact colors */
.contribution-day[data-level="0"] { background: #ebedf0; }
.contribution-day[data-level="1"] { background: #9be9a8; }
.contribution-day[data-level="2"] { background: #40c463; }
.contribution-day[data-level="3"] { background: #30a14e; }
.contribution-day[data-level="4"] { background: #216e39; }

.contribution-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background: #000;
    color: #fff;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.1s ease;
    z-index: 1000;
    font-weight: 600;
}

.contribution-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 4px solid transparent;
    border-top-color: #000;
}

.contribution-day:hover .contribution-tooltip {
    opacity: 1;
}

.contributions-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid #d0d7de;
}

.contributions-legend {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--text-secondary);
}

.legend-text {
    margin-right: 8px;
}

.legend-squares {
    display: flex;
    gap: 2px;
}

.legend-square {
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

.legend-square.less { background: #ebedf0; }
.legend-square.more { background: #216e39; }

.contributions-learn-more {
    font-size: 12px;
    color: #0969da;
    text-decoration: none;
}

.contributions-learn-more:hover {
    text-decoration: underline;
}

.contributions-stats {
    display: flex;
    gap: 16px;
    margin-top: 16px;
    padding: 16px;
    background: #f6f8fa;
    border-radius: 6px;
    border: 1px solid #d0d7de;
    margin-left: 150px;
}

.stat-item {
    text-align: center;
    flex: 1;
}

.stat-number {
    font-size: 20px;
    font-weight: 600;
    color: #000;
    display: block;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Loading state */
.contributions-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 0;
    color: var(--text-secondary);
    font-size: 14px;
}

.contributions-loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid #d0d7de;
    border-top: 2px solid #0969da;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 8px;
}

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

/* Error state */
.contributions-error {
    text-align: center;
    padding: 40px 0;
    color: #cf222e;
    font-size: 14px;
}

.contributions-error .btn {
    margin-top: 12px;
    background: #0969da;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
}

.contributions-error .btn:hover {
    background: #0856c3;
}

/* Responsive design */
@media (max-width: 768px) {
    .contributions-container {
        padding: 0 8px;
    }
    
    .contributions-squares {
        grid-template-columns: repeat(26, 12px);
        gap: 2px;
    }
    
    .contribution-day {
        width: 12px;
        height: 12px;
    }
    
    .contributions-header {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }
    
    .contributions-footer {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
    
    .contributions-stats {
        flex-direction: column;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .contributions-squares {
        grid-template-columns: repeat(13, 10px);
    }
    
    .contribution-day {
        width: 10px;
        height: 10px;
    }
    
    .contributions-days {
        display: none;
    }
}