:root{--bg-main:#f0f4f8;--bg-card:#ffffff;--primary:#3b82f6;--primary-dark:#2563eb;--text-dark:#1e293b;--text-muted:#64748b;--border-light:#e2e8f0;--shadow-light:0 8px 24px rgba(0,0,0,0.05);--radius:14px;--transition:0.25s ease}body{font-family:Inter,sans-serif;background-color:var(--bg-main);color:var(--text-dark)}.dashboard-container{width:100%;max-width:100vw;overflow-x:hidden}.dashboard-main{flex:1 1;padding:6rem 1.5rem 2rem}.admin-title{font-size:2.5rem;font-weight:800;text-align:center;margin-bottom:1rem;color:var(--text-dark)}.admin-top-nav{position:-webkit-sticky;position:sticky;top:0;left:0;width:100%;background:white;border-bottom:1px solid var(--border-light);padding:1rem 0;z-index:10}.admin-nav-container{width:100%;max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:0 1rem}.nav-center{display:flex;gap:24px;justify-content:center;flex:1 1}.nav-link{text-decoration:none;font-weight:600;color:var(--text-dark);padding:8px 16px;border-radius:var(--radius);transition:background-color .2s}.nav-link:hover{background-color:#f1f5f9}.nav-right{flex-shrink:0}.logoutButton{background-color:#ff5f5f;color:white;padding:8px 16px;border:none;border-radius:6px;cursor:pointer;font-weight:700;transition:background-color .2s ease}.logoutButton:hover{background-color:#e94444}.admin-form{background-color:var(--bg-card);padding:32px;border-radius:var(--radius);box-shadow:var(--shadow-light);max-width:700px;margin:0 auto;display:flex;flex-direction:column;gap:18px}.admin-form,.inputStyle{border:1px solid var(--border-light)}.inputStyle{width:100%;padding:12px 14px;border-radius:var(--radius);font-size:1rem;background-color:#fff;color:var(--text-dark);transition:var(--transition)}.inputStyle:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(59,130,246,.25)}.submitButton{background:linear-gradient(90deg,#3b82f6,#2563eb);color:white;padding:12px 16px;font-size:1rem;border-radius:var(--radius);font-weight:600;cursor:pointer;transition:background-color var(--transition);border:none}.submitButton:hover{background-color:var(--primary-dark)}.admin-filters{display:flex;flex-wrap:wrap;gap:12px;margin:1.5rem auto;justify-content:center;max-width:800px}.admin-filters .inputStyle{min-width:200px}.admin-table-card{background:white;border-radius:var(--radius);box-shadow:var(--shadow-light);padding:1.5rem;margin-bottom:2rem;overflow-x:auto}.admin-table{width:100%;border-collapse:collapse;background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius);overflow:hidden}.admin-table thead{background-color:#f1f5f9;font-weight:700;color:var(--text-muted)}.admin-table td,.admin-table th{padding:18px 20px;text-align:left;border-bottom:1px solid var(--border-light);font-size:.95rem}.admin-table tr:last-child td{border-bottom:none}.stock-label{display:inline-block;padding:4px 10px;border-radius:12px;font-weight:600;font-size:.85rem}.in-stock{background-color:#dcfce7;color:#15803d;border:1px solid #bbf7d0}.out-of-stock{background-color:#fee2e2;color:#b91c1c;border:1px solid #fecaca}.tools-menu{display:flex;flex-direction:column;gap:1rem;max-width:600px;margin:2rem auto}.tool-card{background-color:white;border:1px solid var(--border-light);padding:16px 24px;border-radius:var(--radius);text-decoration:none;color:var(--text-dark);font-weight:600;font-size:1.1rem;transition:background-color .2s ease;box-shadow:var(--shadow-light)}.tool-card:hover{background-color:#f9fafb}.water-usage-page{display:flex;flex-direction:column;align-items:center;padding-top:2rem;gap:2rem}.water-usage-form,.water-usage-results{max-width:500px;width:100%}.water-usage-results{background-color:var(--bg-card);border:1px solid var(--border-light);padding:24px;border-radius:var(--radius);box-shadow:var(--shadow-light);font-size:1rem;line-height:1.8;color:var(--text-dark)}.water-usage-results p{margin-bottom:12px;background-color:#f8fafc;padding:10px 14px;border-left:4px solid var(--primary);border-radius:var(--radius)}.water-usage-results strong{color:var(--primary-dark)}