:root{--bg:#f4f6fb;--surface:#fff;--border:#e3e8f0;--text:#1f2937;--muted:#6b7280;--primary:#4f46e5;--primary-hover:#4338ca;--danger:#dc2626;--success:#16a34a;--warning:#d97706;--radius:10px;--shadow:0 1px 3px rgba(16,24,40,.08)}*{box-sizing:border-box}body,html{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--primary);text-decoration:none}.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:linear-gradient(135deg,#4f46e5,#7c3aed)}.auth-card{background:var(--surface);border-radius:16px;box-shadow:0 10px 40px rgba(0,0,0,.15);padding:32px;width:100%;max-width:420px}.auth-card h1{margin:0 0 4px;font-size:1.5rem}.auth-card .subtitle{color:var(--muted);margin-bottom:24px}.landing{min-height:100vh;display:flex;flex-direction:column;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff}.landing header{display:flex;justify-content:space-between;align-items:center;padding:24px 40px}.landing header .brand{font-size:1.3rem;font-weight:700}.landing .hero{flex:1 1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px}.landing .hero h1{font-size:3rem;margin:0 0 16px;max-width:800px}.landing .hero p{font-size:1.2rem;max-width:640px;opacity:.9;margin:0 0 32px}.landing .features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));grid-gap:16px;gap:16px;max-width:900px;width:100%;margin-bottom:32px}.landing .feature{background:hsla(0,0%,100%,.12);border-radius:12px;padding:20px;text-align:left}.landing .feature h3{margin:0 0 8px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius);padding:10px 18px;font-size:.95rem;font-weight:600;cursor:pointer;transition:background .15s;background:var(--primary);color:#fff}.btn:hover{background:var(--primary-hover)}.btn.secondary{background:#eef2ff;color:var(--primary)}.btn.secondary:hover{background:#e0e7ff}.btn.danger{background:var(--danger)}.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--border)}.btn.ghost:hover{background:#f3f4f6}.btn.sm{padding:6px 12px;font-size:.85rem}.btn:disabled{opacity:.5;cursor:not-allowed}.field{margin-bottom:16px}.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:6px}.input,select.input,textarea.input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:.95rem;background:#fff;color:var(--text)}.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.15)}.error-text{color:var(--danger);font-size:.85rem;margin-top:4px}.alert{padding:12px 16px;border-radius:var(--radius);margin-bottom:16px;font-size:.9rem}.alert.error{background:#fef2f2;color:var(--danger);border:1px solid #fecaca}.alert.success{background:#f0fdf4;color:var(--success);border:1px solid #bbf7d0}.dashboard{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.sidebar{background:var(--surface);border-right:1px solid var(--border);padding:20px 16px;display:flex;flex-direction:column;gap:4px;position:-webkit-sticky;position:sticky;top:0;height:100vh}.sidebar .brand{font-size:1.2rem;font-weight:700;padding:0 12px 16px;color:var(--primary)}.sidebar a{padding:10px 12px;border-radius:8px;color:var(--text);font-weight:500}.sidebar a:hover{background:#f3f4f6}.sidebar a.active{background:#eef2ff;color:var(--primary)}.sidebar .logout{margin-top:auto}.main{padding:24px 32px;overflow-x:auto}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.topbar h1{margin:0;font-size:1.5rem}.user-chip{gap:10px}.avatar,.user-chip{display:flex;align-items:center}.avatar{width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;justify-content:center;font-weight:700}.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.75rem;font-weight:600}.badge.ADMIN{background:#ede9fe;color:#6d28d9}.badge.STAFF{background:#dbeafe;color:#1d4ed8}.badge.STUDENT{background:#dcfce7;color:#15803d}.badge.OPEN{background:#fee2e2;color:#b91c1c}.badge.IN_PROGRESS{background:#fef3c7;color:#b45309}.badge.RESOLVED{background:#dcfce7;color:#15803d}.badge.REJECTED{background:#f3f4f6;color:#4b5563}.badge.CLOSED{background:#e5e7eb;color:#374151}.badge.PENDING{background:#fef3c7;color:#b45309}.badge.APPROVED{background:#dcfce7;color:#15803d}.badge.CANCELLED{background:#f3f4f6;color:#4b5563}.badge.COMPLETED{background:#dbeafe;color:#1d4ed8}.badge.LOW{background:#e5e7eb;color:#374151}.badge.MEDIUM{background:#dbeafe;color:#1d4ed8}.badge.HIGH{background:#fef3c7;color:#b45309}.badge.URGENT{background:#fee2e2;color:#b91c1c}.badge.AVAILABLE{background:#dcfce7;color:#15803d}.badge.MAINTENANCE{background:#fef3c7;color:#b45309}.badge.UNAVAILABLE{background:#fee2e2;color:#b91c1c}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));grid-gap:16px;gap:16px;margin-bottom:24px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.card h3{margin:0 0 4px;font-size:.85rem;color:var(--muted);font-weight:600}.card .value{font-size:1.8rem;font-weight:700}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:24px}.panel h2{margin:0 0 16px;font-size:1.1rem}.toolbar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:16px}.toolbar .input{width:auto;min-width:220px;flex:1 1}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:12px 14px;border-bottom:1px solid var(--border);font-size:.92rem}th{font-weight:600;color:var(--muted)}th,tr:hover td{background:#fafbfc}.pagination{display:flex;align-items:center;gap:8px;justify-content:flex-end;margin-top:16px}.pagination button{border:1px solid var(--border);background:#fff;border-radius:8px;padding:6px 12px;cursor:pointer}.pagination button:disabled{opacity:.4;cursor:not-allowed}.grid-2{display:grid;grid-template-columns:1fr 1fr;grid-gap:24px;gap:24px}.detail-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--border)}.detail-row .label{color:var(--muted);font-weight:500}.timeline{list-style:none;margin:0;padding:0}.timeline li{border-left:2px solid var(--primary);padding:12px 0 12px 16px;margin-left:8px;position:relative}.timeline li:before{content:"";position:absolute;left:-6px;top:18px;width:10px;height:10px;border-radius:50%;background:var(--primary)}.muted{color:var(--muted);font-size:.85rem}.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px}.modal{background:#fff;border-radius:16px;padding:24px;width:100%;max-width:520px;max-height:90vh;overflow-y:auto}@media (max-width:768px){.dashboard{grid-template-columns:1fr}.sidebar{position:static;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center}.sidebar .brand{padding:0 8px}.grid-2{grid-template-columns:1fr}.landing .hero h1{font-size:2rem}}