@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0b0d14;--surface:#13151f;--surface-2:#1c1f2e;--surface-3:#252839;--border:#ffffff12;--border-2:#ffffff1f;--text:#e8eaf6;--text-2:#9095b0;--text-3:#5a5f7a;--purple:#7c6dfa;--purple-2:#9d91fb;--purple-glow:#7c6dfa26;--green:#34d399;--green-bg:#34d3991a;--red:#f87171;--red-bg:#f871711a;--amber:#fbbf24;--amber-bg:#fbbf241a;--blue:#60a5fa;--blue-bg:#60a5fa1a;--sidebar-w:224px;--radius:10px;--radius-lg:14px;--radius-sm:6px}html{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.5}body{min-height:100vh}::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-2);border-radius:2px}input,select,textarea{background:var(--surface-2);border:1px solid var(--border-2);width:100%;color:var(--text);border-radius:var(--radius-sm);outline:none;padding:9px 12px;font-family:inherit;font-size:14px;transition:border-color .15s}input:focus,select:focus,textarea:focus{border-color:var(--purple);box-shadow:0 0 0 3px var(--purple-glow)}.inline-select{background:var(--surface-3);width:auto;padding:4px 8px;font-size:13px}button{cursor:pointer;border-radius:var(--radius-sm);border:1px solid var(--border-2);background:var(--surface-2);color:var(--text);padding:8px 16px;font-family:inherit;font-size:14px;transition:all .15s}button:hover{background:var(--surface-3)}button.primary{background:var(--purple);border-color:var(--purple);color:#fff}button.primary:hover{background:var(--purple-2)}button.danger{background:var(--red-bg);border-color:var(--red);color:var(--red)}button.sm{padding:5px 12px;font-size:13px}button.xs{padding:3px 9px;font-size:12px}button:disabled{opacity:.4;cursor:not-allowed}.layout{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);z-index:20;flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0}.sidebar-top{padding:20px 16px}.logo{align-items:center;gap:10px;display:flex}.logo-mark{background:var(--purple);color:#fff;border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;font-size:16px;font-weight:700;display:flex}.logo-mark.lg{border-radius:12px;width:48px;height:48px;font-size:22px}.logo-text{font-size:16px;font-weight:600}.sidebar-nav{flex:1;padding:0 8px;overflow-y:auto}.nav-section-label{color:var(--text-3);text-transform:uppercase;letter-spacing:.06em;padding:16px 12px 6px;font-size:11px;font-weight:600}.nav-item{border-radius:var(--radius-sm);color:var(--text-2);border-left:3px solid #0000;align-items:center;gap:10px;margin-bottom:2px;padding:9px 12px;font-size:14px;font-weight:500;text-decoration:none;transition:all .15s;display:flex}.nav-item:hover{background:var(--surface-2);color:var(--text)}.nav-item.active{background:var(--purple-glow);color:var(--purple-2);border-left-color:var(--purple)}.sidebar-bottom{border-top:1px solid var(--border);padding:12px 16px}.sidebar-user{align-items:center;gap:8px;margin-bottom:8px;display:flex}.sidebar-username{color:var(--text-2);font-size:13px}.btn-signout{width:100%;color:var(--text-3);border:1px solid var(--border);background:0 0;padding:6px;font-size:12px}.btn-signout:hover{color:var(--red);border-color:var(--red);background:var(--red-bg)}.main-area{margin-left:var(--sidebar-w);flex-direction:column;flex:1;display:flex}.topbar{background:var(--surface);border-bottom:1px solid var(--border);z-index:10;justify-content:space-between;align-items:center;height:56px;padding:0 24px;display:flex;position:sticky;top:0}.topbar-left,.topbar-right{flex:1}.topbar-right{text-align:right}.topbar-username{color:var(--text-2);font-size:13px}.topbar-center{justify-content:center;display:flex}.trip-chip{background:var(--surface-2);border:1px solid var(--border);border-radius:20px;align-items:center;gap:8px;padding:4px 14px;font-size:13px;display:flex}.trip-dot{background:var(--green);border-radius:50%;width:7px;height:7px}.trip-currency{color:var(--purple-2);font-size:11px;font-weight:600}.page-content{flex:1;padding:24px}.page,.fade-in{animation:.2s fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.page-loading{flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:80px 0;display:flex}.page-loading.full{min-height:100vh}.spinner{border:3px solid var(--border-2);border-top-color:var(--purple);border-radius:50%;width:28px;height:28px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.page-title{margin-bottom:20px;font-size:22px;font-weight:600}.page-subtitle{color:var(--text-2);margin-top:-14px;margin-bottom:20px;font-size:14px}.page-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.page-header .page-title{margin-bottom:0}.btn-back{color:var(--text-2);background:0 0;border:none;padding:4px 0;font-size:13px}.btn-back:hover{color:var(--text);background:0 0}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.25rem}.card-title{color:var(--text-2);margin-bottom:14px;font-size:15px;font-weight:600}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:24px;display:grid}.stat-card{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-lg);text-align:center;padding:18px}.stat-accent{background:var(--purple);border-color:var(--purple)}.stat-accent .stat-label{color:#ffffffbf}.stat-value{margin-bottom:2px;font-size:26px;font-weight:600}.stat-label{color:var(--text-2);font-size:13px}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%}th{color:var(--text-2);text-transform:uppercase;letter-spacing:.05em;text-align:left;background:var(--surface-2);border-bottom:1px solid var(--border);padding:10px 14px;font-size:12px;font-weight:600}td{border-bottom:1px solid var(--border);padding:12px 14px;font-size:14px}tr:hover td{background:var(--surface-2)}tr.row-pending{border-left:3px solid var(--amber)}.row-actions{justify-content:flex-end;gap:6px;display:flex}.badge{border-radius:20px;padding:3px 10px;font-size:12px;font-weight:500;line-height:1.4;display:inline-block}.badge-green{background:var(--green-bg);color:var(--green)}.badge-red{background:var(--red-bg);color:var(--red)}.badge-amber{background:var(--amber-bg);color:var(--amber)}.badge-purple{background:var(--purple-glow);color:var(--purple-2)}.badge-gray{background:var(--surface-3);color:var(--text-3)}.badge-blue{background:var(--blue-bg);color:var(--blue)}.avatar{background:var(--purple);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-weight:600;display:flex}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;background:#0009;justify-content:center;align-items:center;animation:.15s fadeIn;display:flex;position:fixed;inset:0}.modal-box{background:var(--surface);border:1px solid var(--border-2);border-radius:var(--radius-lg);width:100%;max-width:480px;margin:16px}.modal-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.modal-header h3{font-size:16px;font-weight:600}.modal-close{color:var(--text-3);cursor:pointer;background:0 0;border:none;padding:0;font-size:22px;line-height:1}.modal-close:hover{color:var(--text);background:0 0}.modal-body{padding:20px}.modal-footer{border-top:1px solid var(--border);justify-content:flex-end;gap:8px;padding:12px 20px;display:flex}.form-group{margin-bottom:16px}.form-group label{color:var(--text-2);margin-bottom:6px;font-size:13px;font-weight:500;display:block}.login-page{justify-content:center;align-items:center;min-height:100vh;padding:16px;display:flex}.login-card{background:var(--surface);border:1px solid var(--border-2);border-radius:var(--radius-lg);text-align:center;width:100%;max-width:380px;padding:40px 32px}.login-logo{justify-content:center;margin-bottom:16px;display:flex}.login-title{margin-bottom:4px;font-size:22px;font-weight:700}.login-subtitle{color:var(--text-2);margin-bottom:28px;font-size:14px}.login-error{background:var(--red-bg);color:var(--red);border-radius:var(--radius-sm);margin-bottom:16px;padding:8px 14px;font-size:13px}.login-card .form-group{text-align:left}.alert-banner{background:var(--amber-bg);border-radius:var(--radius);color:var(--amber);border:1px solid #fbbf2433;justify-content:space-between;align-items:center;margin-bottom:20px;padding:12px 16px;font-size:14px;display:flex}.alert-link{color:var(--amber);font-weight:600;text-decoration:none}.dashboard-grid{grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:16px;display:grid}.recent-list{flex-direction:column;gap:10px;display:flex}.recent-item{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:8px 0;display:flex}.recent-item:last-child{border-bottom:none}.recent-desc{font-size:14px;font-weight:500}.recent-meta{color:var(--text-3);font-size:12px}.recent-amount{font-size:15px;font-weight:600}.balance-list-grid{grid-template-columns:1fr 1fr;gap:16px;display:grid}.balance-section-label{color:var(--text-3);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px;font-size:12px;font-weight:600}.balance-row{justify-content:space-between;align-items:center;padding:6px 0;font-size:14px;display:flex}.tab-bar{border-bottom:1px solid var(--border);gap:4px;margin-bottom:20px;display:flex}.tab-btn{color:var(--text-2);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;padding:10px 16px;font-size:14px;font-weight:500}.tab-btn:hover{color:var(--text);background:0 0}.tab-btn.active{color:var(--purple-2);border-bottom-color:var(--purple)}.section{margin-bottom:28px}.section-title{margin-bottom:4px;font-size:16px;font-weight:600}.section-hint{color:var(--text-3);margin-bottom:14px;font-size:13px}.settlement-cards{flex-direction:column;gap:8px;display:flex}.settlement-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.settlement-card.completed{opacity:.55}.settlement-flow{align-items:center;gap:10px;display:flex}.settlement-arrow{color:var(--text-3)}.settlement-right{align-items:center;gap:12px;display:flex}.settlement-amount{font-size:17px;font-weight:600}.user-cell{align-items:center;gap:10px;display:flex}.household-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px;display:grid}.household-card{cursor:pointer;transition:border-color .15s}.household-card:hover{border-color:var(--purple)}.household-top{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.household-top h3{font-size:16px;font-weight:600}.household-count{color:var(--text-3);font-size:12px}.household-members{flex-wrap:wrap;gap:8px;display:flex}.member-chip{background:var(--surface-2);border-radius:20px;align-items:center;gap:6px;padding:4px 12px 4px 4px;font-size:13px;display:flex}.code-result{background:var(--purple-glow);border:1px solid var(--purple);border-radius:var(--radius);justify-content:space-between;align-items:center;margin-bottom:20px;padding:14px 18px;display:flex}.code-display{letter-spacing:2px;color:var(--purple-2);font-size:20px;font-weight:700}.code-inline{color:var(--purple-2);background:var(--surface-2);border-radius:4px;padding:2px 8px;font-size:13px}.split-pills{flex-wrap:wrap;gap:4px;display:flex}.split-pill{color:var(--text-2);background:var(--surface-2);border-radius:4px;padding:2px 8px;font-size:12px}.text-dim{color:var(--text-2)}.text-sm{font-size:13px}.text-green{color:var(--green)}.text-red{color:var(--red)}.font-semibold{font-weight:600}.empty-state{text-align:center;color:var(--text-3);background:var(--surface);border:1px dashed var(--border-2);border-radius:var(--radius-lg);padding:40px}@media (width<=768px){.sidebar{display:none}.main-area{margin-left:0}.stats-grid{grid-template-columns:repeat(2,1fr)}.dashboard-grid,.balance-list-grid{grid-template-columns:1fr}.settlement-card{flex-direction:column;align-items:flex-start;gap:10px}}