*{box-sizing:border-box}:root{--bg: #0f1419;--surface: #1a2332;--border: #2d3a4d;--text: #e6edf3;--muted: #8b949e;--accent: #58a6ff;--success: #3fb950;--warning: #d29922;--danger: #f85149}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;-webkit-tap-highlight-color:transparent}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer;border:none;border-radius:8px;padding:.6rem 1rem;background:var(--accent);color:#fff}button:disabled{opacity:.5;cursor:not-allowed}button.secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}button.danger{background:var(--danger)}a.button{display:inline-block;font:inherit;cursor:pointer;border:none;border-radius:8px;padding:.6rem 1rem;background:var(--accent);color:#fff;text-align:center}a.button:hover{text-decoration:none;filter:brightness(1.1)}input,select,textarea{font:inherit;padding:.5rem .75rem;border:1px solid var(--border);border-radius:6px;background:var(--surface);color:var(--text);width:100%}label{display:block;margin-bottom:.25rem;color:var(--muted);font-size:.9rem}.form-group{margin-bottom:1rem}.container{max-width:480px;margin:0 auto;padding:1rem 1rem 2rem}.page-title{font-size:1.5rem;margin-bottom:1rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1rem;margin-bottom:1rem}.badge{display:inline-block;padding:.2rem .5rem;border-radius:6px;font-size:.75rem;font-weight:600}.badge.cemented{background:var(--warning);color:#000}.badge.open{background:var(--success);color:#000}