:root{--beige: #F5F1E8;--brown: #66241E;--green: #5B8C3E;--orange: #FF8C42;--red: #DC3545;--success: #28A745;--error-bg: #F8D7DA;--error-text: #721C24;--error-border: #F5C6CB}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--beige);color:var(--brown);margin:0;padding:0;box-sizing:border-box;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{color:var(--brown)}a{color:var(--orange);text-decoration:none}a:hover{text-decoration:underline}button,.btn{background-color:var(--orange);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:8px;cursor:pointer;font-size:1rem;font-weight:600;transition:background-color .2s ease,transform .2s ease}button:hover,.btn:hover{background-color:#e67a35;transform:translateY(-1px)}button:disabled,.btn:disabled{background-color:#ccc;cursor:not-allowed}.btn-secondary{background-color:var(--beige);color:var(--brown);border:1px solid var(--brown)}.btn-secondary:hover{background-color:#ede9e1}.alert{padding:1rem;margin-bottom:1rem;border-radius:8px;border:1px solid transparent}.alert-error{background-color:var(--error-bg);color:var(--error-text);border-color:var(--error-border)}.alert-success{background-color:#d4edda;color:#155724;border-color:#c3e6cb}.app-header{background-color:var(--brown, #66241E);color:#fff;padding:1rem;box-shadow:0 2px 8px #0000001a;position:sticky;top:0;z-index:1000}.header-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.logo a{color:#fff;text-decoration:none;font-size:1.5rem;font-weight:700}.main-nav{display:flex;align-items:center;gap:1.5rem}.main-nav a{color:#fff;text-decoration:none;font-weight:500;transition:opacity .2s}.main-nav a:hover{opacity:.8;text-decoration:none}.user-info{font-size:.9rem;opacity:.9}.btn-logout{background:var(--orange, #FF8C42);color:#fff;border:none;padding:.5rem 1rem;border-radius:6px;cursor:pointer;font-weight:600;transition:background-color .2s}.btn-logout:hover{background-color:#e67a35}.main-content{padding:2rem 1rem;flex-grow:1}.container{max-width:1200px;margin:0 auto}.login-page{display:flex;justify-content:center;align-items:flex-start;padding-top:4rem}.login-card{width:100%;max-width:400px;padding:2rem;background:#fff;border-radius:12px;box-shadow:0 4px 15px #0000001a;text-align:center}.login-card h2{margin-bottom:1.5rem}.input-group{margin-bottom:1.5rem;text-align:left}.input-group label{display:block;margin-bottom:.5rem;font-weight:600}.input-group input{width:100%;padding:.75rem;border:2px solid var(--brown);border-radius:8px;font-size:1rem;background-color:var(--beige);color:var(--brown);box-sizing:border-box}.voucher-history h4{margin-top:0;margin-bottom:1rem;color:var(--brown)}.history-table{width:100%;border-collapse:collapse;font-size:.9rem}.history-table th,.history-table td{padding:.6rem;text-align:left;border-bottom:1px solid #eee}.history-table th{font-weight:600;background-color:#f9f9f9}.tx-type{padding:.2rem .5rem;border-radius:10px;font-weight:600;color:#fff}.tx-creation{background-color:var(--green, #28a745)}.tx-redemption{background-color:var(--red, #dc3545)}.tx-unknown{background-color:#6c757d}.manager-view h2{margin-bottom:1.5rem}.layout-grid{display:grid;grid-template-columns:2fr 1fr;gap:1.5rem;align-items:start}.main-column{display:flex;flex-direction:column;gap:1.5rem}.sidebar-column{display:flex;flex-direction:column;gap:1.5rem;position:sticky;top:calc(var(--header-height, 60px) + 1.5rem)}.card{background:#fff;border-radius:12px;padding:1.5rem;box-shadow:0 4px 15px #00000014}.card h3{margin-top:0;margin-bottom:1rem;border-bottom:2px solid #f0f0f0;padding-bottom:.5rem}.filter-bar{display:flex;gap:.5rem;margin-bottom:1rem;flex-wrap:wrap}.btn-filter{background:#f0f0f0;border:none;padding:.5rem 1rem;border-radius:20px;cursor:pointer;font-weight:600;color:#555;transition:all .2s}.btn-filter:hover{background:#e0e0e0}.btn-filter.active{background:var(--brown, #66241E);color:#fff}.btn-small{background:var(--orange, #FF8C42);color:#fff;border:none;padding:.3rem .6rem;font-size:.8rem;border-radius:4px;cursor:pointer;transition:background-color .2s}.btn-small:hover{background-color:#e67a35}.voucher-table{width:100%;border-collapse:collapse;margin-top:1rem}.voucher-table th,.voucher-table td{padding:.75rem;text-align:left;border-bottom:1px solid #eee}.voucher-table th{font-weight:600;background-color:#f9f9f9}.voucher-table .clickable-row{cursor:pointer;transition:background-color .2s}.voucher-table .clickable-row:hover{background-color:#f5f5f5}.text-right{text-align:right}.status-badge{padding:.25rem .6rem;border-radius:12px;font-size:.8rem;font-weight:600;color:#fff;background-color:#999}.status-active{background-color:var(--green, #28a745)}.status-partially_redeemed{background-color:var(--orange, #fd7e14)}.status-fully_redeemed{background-color:var(--red, #dc3545)}.summary p{margin:.5rem 0;display:flex;justify-content:space-between}.mt-1{margin-top:1rem}.modal-overlay{position:fixed;inset:0;background:#0009;display:flex;justify-content:center;align-items:center;z-index:2000}.modal-content{background:#fff;padding:2rem;border-radius:12px;width:90%;max-width:800px;max-height:90vh;overflow-y:auto;position:relative}.modal-close{position:absolute;top:10px;right:15px;background:none;border:none;font-size:2rem;line-height:1;color:#999;cursor:pointer;transition:color .2s}.modal-close:hover{color:#333}