:root{--text-heading:1.1rem;--text-regular:0.9rem;--text-small:0.8rem;--text-xsmall:0.7rem;--color-primary:blue;--color-muted:#999;--color-hover:#f4f4f4;--color-surface:#f8f8f8;--sidebar-width:200px;color-scheme:light}*,:after,:before{box-sizing:border-box;margin:0}body,html{height:100%;background:#fff;color:#111}body{font-family:system-ui,sans-serif;line-height:1.5;display:flex;flex-direction:column;font-size:var(--text-regular)}a{text-decoration:none;color:var(--color-primary)}a:visited{color:purple}a:hover{color:inherit}.admin-shell{display:flex;flex:1 1;min-height:0}.admin-header{display:flex;align-items:baseline;gap:1rem;padding:.875rem 1.25rem}.admin-header h1{font-size:var(--text-heading)}.admin-header .header-right{margin-left:auto;font-size:var(--text-xsmall);color:var(--color-muted);display:flex;gap:1.25rem;align-items:center}.admin-nav{width:var(--sidebar-width);flex-shrink:0;background:var(--color-surface);padding:1rem 0;font-size:var(--text-small)}.admin-nav a{display:block;padding:.4rem 1rem;color:inherit;border-radius:0}.admin-nav a.active,.admin-nav a:hover{background:var(--color-hover);color:var(--color-primary)}.admin-nav .nav-section{font-size:var(--text-xsmall);font-weight:700;color:var(--color-muted);padding:.875rem 1rem .25rem;text-transform:uppercase;letter-spacing:.05em}.admin-main{flex:1 1;overflow-y:auto;padding:1.5rem 1.75rem;min-width:0}.admin-main h2{font-size:var(--text-heading);margin-bottom:1.25rem}.admin-main h3{font-size:var(--text-regular);margin-bottom:.6rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));grid-gap:.875rem;gap:.875rem;margin-bottom:2rem}.stat-card{background:var(--color-surface);border-radius:6px;padding:1rem 1.25rem}.stat-card .stat-num{font-size:1.6rem;font-weight:700;color:var(--color-primary);line-height:1}.stat-card .stat-label{font-size:var(--text-xsmall);color:var(--color-muted);margin-top:.3rem}.admin-table{width:100%;border-collapse:collapse;font-size:var(--text-small)}.admin-table th{text-align:left;padding:.5rem .75rem;font-weight:700;font-size:var(--text-xsmall);color:var(--color-muted);white-space:nowrap;background:var(--color-surface)}.admin-table td{padding:.625rem .75rem;vertical-align:top}.admin-table tr:hover td{background:var(--color-hover)}.status-badge{display:inline-block;font-size:var(--text-xsmall);padding:.15rem .5rem;border-radius:20px;font-weight:600}.status-pending{background:#fff8e1;color:#b8860b}.status-approved{background:#e8f5e9;color:#2e7d32}.status-rejected{background:#ffebee;color:#c62828}.status-pr_created{background:#e3f2fd;color:#1565c0}.type-badge{display:inline-block;font-size:var(--text-xsmall);padding:.15rem .45rem;border-radius:20px;background:var(--color-surface);color:var(--color-muted);text-transform:capitalize}.detail-grid{display:grid;grid-template-columns:150px 1fr;grid-gap:.5rem 1rem;gap:.5rem 1rem;margin-bottom:1.25rem;font-size:var(--text-small)}.detail-grid dt{color:var(--color-muted);font-weight:600}.detail-grid dd{word-break:break-word}.btn{padding:.4rem 1rem;font-size:var(--text-small);font-family:inherit;cursor:pointer;border:none;border-radius:4px;background:var(--color-surface);color:#111}.btn:hover{background:var(--color-hover)}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{opacity:.85;background:var(--color-primary)}.btn-danger{color:#c00;background:#fff5f5}.btn-danger:hover{background:#ffe8e8}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-row{display:flex;gap:.625rem;align-items:center;margin-top:1.25rem}.form-group{margin-bottom:.875rem}.form-group label{display:block;font-size:var(--text-small);font-weight:600;margin-bottom:.25rem}.form-group textarea{width:100%;padding:.45rem .6rem;font-size:var(--text-small);font-family:inherit;border:none;background:var(--color-surface);border-radius:4px;height:80px;resize:vertical}.form-group textarea:focus{outline:1.5px solid var(--color-primary)}.login-page{display:flex;align-items:center;justify-content:center;height:100vh}.login-card{background:var(--color-surface);border-radius:8px;padding:2.5rem 2rem;width:340px}.login-card h2{font-size:var(--text-heading);margin-bottom:1.5rem}.login-card .form-group input{width:100%;padding:.45rem .6rem;font-size:var(--text-regular);font-family:inherit;border:none;background:#fff;border-radius:4px}.login-card .form-group input:focus{outline:1.5px solid var(--color-primary)}.login-error{color:#c00;margin-top:.5rem}.alert,.login-error{font-size:var(--text-small)}.alert{padding:.75rem 1rem;border-radius:4px;margin-bottom:1.25rem}.alert-success{background:#f0fff4}.alert-error{background:#fff5f5;color:#c00}.breadcrumb{font-size:var(--text-xsmall);margin-bottom:1rem}.breadcrumb,.breadcrumb a{color:var(--color-muted)}.breadcrumb a:hover{color:var(--color-primary)}@media (max-width:650px){.admin-nav{display:none}.detail-grid{grid-template-columns:1fr}}