:root{--bg-color:#f7f9fa;--card-bg:#ffffff;--text-main:#1f2937;--text-muted:#6b7280;--border-color:#e5e7eb;--primary:#059669;--primary-hover:#047857;--danger:#dc2626;--danger-hover:#b91c1c;--warning:#d97706;--info:#2563eb;--font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-main);line-height:1.5;font-size:14px}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.app-container{max-width:1200px;margin:0 auto;padding:20px}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--border-color)}.page-title{font-size:20px;font-weight:600;color:var(--text-main)}.page-subtitle{font-size:13px;color:var(--text-muted);margin-top:2px}.navbar{background-color:#ffffff;border-bottom:1px solid var(--border-color);padding:12px 24px;justify-content:space-between}.nav-brand,.navbar{display:flex;align-items:center}.nav-brand{font-weight:700;font-size:16px;color:#065f46;gap:8px}.nav-links{display:flex;gap:16px;align-items:center}.nav-link{color:#374151;font-size:14px;font-weight:500;padding:6px 10px;border-radius:4px}.nav-link.active,.nav-link:hover{background-color:#ecfdf5;color:#047857;text-decoration:none}.nav-user{display:flex;align-items:center;gap:12px;font-size:13px}.card{background-color:var(--card-bg);border:1px solid var(--border-color);border-radius:6px;padding:18px;margin-bottom:20px}.card-title{font-size:16px;font-weight:600;margin-bottom:14px;border-bottom:1px solid var(--border-color);padding-bottom:8px}.grid-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.stat-box{background:#ffffff;border:1px solid var(--border-color);border-radius:6px;padding:16px}.stat-label{font-size:12px;color:var(--text-muted);text-transform:uppercase;font-weight:600}.stat-value{font-size:24px;font-weight:700;color:var(--text-main);margin-top:6px}.stat-subtext{font-size:12px;color:var(--text-muted);margin-top:4px}.table-responsive{width:100%;overflow-x:auto}table{width:100%;border-collapse:collapse;text-align:left;background:#ffffff}td,th{padding:10px 14px;border:1px solid var(--border-color);font-size:13px;vertical-align:middle}th{background-color:#f3f4f6;font-weight:600;color:#374151}tr:nth-child(2n) td{background-color:#fafafa}tr:hover td{background-color:#f0fdf4}.btn{display:inline-block;padding:6px 12px;font-size:13px;font-weight:500;border-radius:4px;border:1px solid transparent;cursor:pointer;text-align:center;line-height:1.4;background:#e5e7eb;color:#374151}.btn:hover{text-decoration:none;opacity:.95}.btn-primary{background-color:var(--primary);color:#ffffff}.btn-primary:hover{background-color:var(--primary-hover)}.btn-danger{background-color:var(--danger);color:#ffffff}.btn-danger:hover{background-color:var(--danger-hover)}.btn-secondary{background-color:#4b5563;color:#ffffff}.btn-sm{padding:4px 8px;font-size:12px}.btn-outline{background-color:transparent;border-color:var(--border-color);color:#374151}.btn-outline:hover{background-color:#f3f4f6}.form-group{margin-bottom:14px}.form-label{display:block;font-size:13px;font-weight:500;margin-bottom:5px;color:#374151}.form-control{width:100%;padding:8px 10px;border:1px solid var(--border-color);border-radius:4px;font-size:13px;background-color:#ffffff;color:var(--text-main)}.form-control:focus{outline:none;border-color:var(--primary)}.form-control:disabled,.form-control[readonly]{background-color:#f3f4f6;color:#6b7280;cursor:not-allowed}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.badge{display:inline-block;padding:2px 8px;border-radius:9999px;font-size:11px;font-weight:600}.badge-active{background-color:#d1fae5;color:#065f46}.badge-expiring{background-color:#fef3c7;color:#92400e}.badge-ended{background-color:#fee2e2;color:#991b1b}.badge-admin{background-color:#ede9fe;color:#5b21b6}.badge-dietitian{background-color:#e0f2fe;color:#075985}.badge-locked{background-color:#f3f4f6;color:#4b5563;border:1px solid #d1d5db}.tabs{display:flex;gap:8px;margin-bottom:16px;border-bottom:1px solid var(--border-color);padding-bottom:8px;flex-wrap:wrap}.tab-btn{padding:6px 14px;background:none;border:none;font-size:13px;font-weight:500;color:var(--text-muted);cursor:pointer;border-radius:4px}.tab-btn.active{background-color:#e5e7eb;color:#111827;font-weight:600}.alert{padding:10px 14px;border-radius:4px;margin-bottom:16px;font-size:13px}.alert-success{background-color:#def7ec;color:#03543f;border:1px solid #bcf0da}.alert-danger{background-color:#fde8e8;color:#9b1c1c;border:1px solid #f8b4b4}.alert-info{background-color:#e1effe;color:#1e429f;border:1px solid #b4c6fc}.action-buttons{display:flex;gap:6px;flex-wrap:wrap}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:rgba(0,0,0,.4);display:flex;justify-content:center;align-items:center;z-index:1000;padding:20px}.modal-content{background:#ffffff;border-radius:6px;width:100%;max-width:550px;padding:20px;max-height:90vh;overflow-y:auto;border:1px solid var(--border-color)}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid var(--border-color)}.modal-close{background:none;border:none;font-size:18px;cursor:pointer;color:#6b7280}