Build Time ECDF

import matplotlib.pyplot as plt
import numpy as np

fig, ax = plt.subplots(figsize=(10, 6), facecolor='#ffffff')
ax.set_facecolor('#ffffff')

np.random.seed(42)
build_time = np.random.lognormal(2, 0.6, 500)

ax.ecdf(build_time, color='#dc2626', linewidth=2.5)

target = 10
ax.axvline(x=target, color='#059669', linestyle='--', linewidth=2, label=f'Target: {target} min')

ax.set_xlabel('Build Time (minutes)', fontsize=12, color='#1f2937')
ax.set_ylabel('Cumulative Probability', fontsize=12, color='#1f2937')
ax.set_title('CI/CD Build Time ECDF', fontsize=16, fontweight='bold', color='#1f2937', pad=20)
ax.set_xlim(0, 30)
ax.legend(loc='lower right')
ax.grid(True, alpha=0.3)

for spine in ['top', 'right']:
    ax.spines[spine].set_visible(False)

plt.tight_layout()