:root {
  --bg: #f5f7fb;
  --panel: #fff;
  --text: #0f172a;
  --muted: #475569;
  --border: #dbe4f0;
  --primary: #0f766e;
  --danger: #b91c1c;
  --radius: 8px;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); line-height: 1.5; }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 16px; }
.site-header { background: var(--panel); border-bottom: 1px solid var(--border); padding: 12px 0; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.site-header .logo { font-weight: 700; color: var(--primary); text-decoration: none; }
.site-header nav { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.site-header nav a { color: var(--text); text-decoration: none; }
.site-header nav a:hover { text-decoration: underline; }
.site-header .user { color: var(--muted); font-size: 0.9em; }
.main { padding: 24px 0 48px; min-height: 60vh; }
.site-footer { padding: 16px 0; color: var(--muted); font-size: 0.9em; border-top: 1px solid var(--border); }

.auth-box { max-width: 400px; margin: 24px auto; padding: 24px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); }
.auth-box h1 { margin: 0 0 8px; font-size: 1.5rem; }
.auth-box h2 { margin: 0 0 16px; font-size: 1.1rem; color: var(--muted); }
.auth-box label { display: block; margin-bottom: 4px; font-size: 0.9em; }
.auth-box input[type="text"], .auth-box input[type="email"], .auth-box input[type="password"] { width: 100%; padding: 8px 12px; margin-bottom: 12px; border: 1px solid var(--border); border-radius: 4px; }
.auth-box button { padding: 10px 20px; background: var(--primary); color: #fff; border: 0; border-radius: 4px; cursor: pointer; }
.auth-box button:hover { opacity: 0.9; }
.auth-box .error { color: var(--danger); margin-bottom: 12px; }
.auth-box .success { color: var(--primary); margin-bottom: 12px; }
.auth-box a { color: var(--primary); }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; }
.card h2 { margin: 0 0 12px; font-size: 1.2rem; }
table { width: 100%; border-collapse: collapse; }
th, td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; }
th { background: #f8fafc; font-weight: 600; }
.btn { display: inline-block; padding: 8px 16px; background: var(--primary); color: #fff; text-decoration: none; border-radius: 4px; border: 0; cursor: pointer; font-size: 0.95em; }
.btn:hover { opacity: 0.9; }
.btn-secondary { background: var(--muted); }
.btn-danger { background: var(--danger); }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 4px; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea { width: 100%; max-width: 400px; padding: 8px 12px; border: 1px solid var(--border); border-radius: 4px; }
.form-group textarea { min-height: 80px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 0.85em; }
.badge-draft { background: #e2e8f0; }
.badge-submitted { background: #bfdbfe; }
.badge-in_review { background: #fef3c7; }
.badge-completed { background: #d1fae5; }
.badge-rejected { background: #fecaca; }