*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--green:#2d6a2d;--green-dark:#1e4d1e;--green-light:#e8f5e8;--amber:#ba7517;--amber-light:#faeeda;--blue-light:#e6f1fb;--blue-mid:#0c447c;--red-light:#fcebeb;--red-mid:#791f1f;--text:#1a1a1a;--text-muted:#6b7280;--text-hint:#9ca3af;--border:rgba(0,0,0,.1);--surface:#f9f9f8;--white:#fff;--radius:10px;--radius-sm:6px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:15px;color:var(--text);background:var(--surface);line-height:1.5}.header{background:var(--green);height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:-webkit-sticky;position:sticky;top:0;z-index:100}.header-logo{color:#fff;font-size:15px;font-weight:600;letter-spacing:.01em}.header-logo span{font-weight:400;font-size:13px;opacity:.7;margin-left:8px}.header-right{gap:16px}.header-right,.header-user{display:flex;align-items:center}.header-user{gap:8px;color:hsla(0,0%,100%,.9);font-size:13px}.avatar{width:32px;height:32px;border-radius:50%;background:hsla(0,0%,100%,.2);display:flex;align-items:center;justify-content:center;color:#fff;font-size:12px;font-weight:600;flex-shrink:0}.signout-btn{background:none;border:1px solid hsla(0,0%,100%,.3);color:hsla(0,0%,100%,.85);font-size:12px;padding:5px 12px;border-radius:20px;cursor:pointer;transition:background .15s}.signout-btn:hover{background:hsla(0,0%,100%,.1)}.nav{background:var(--white);border-bottom:1px solid var(--border);display:flex;padding:0 24px;overflow-x:auto}.nav-item{padding:14px 16px;font-size:14px;color:var(--text-muted);cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap;display:flex;align-items:center;gap:6px;transition:color .15s;-webkit-user-select:none;-moz-user-select:none;user-select:none}.nav-item:hover{color:var(--text)}.nav-item.active{color:var(--green);border-bottom-color:var(--green);font-weight:500}.page{max-width:860px;margin:0 auto;padding:28px 20px}.page-title{font-size:20px;font-weight:600;margin-bottom:4px}.page-sub{font-size:14px;color:var(--text-muted);margin-bottom:24px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));grid-gap:12px;gap:12px;margin-bottom:24px}.stat-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}.stat-label{font-size:12px;color:var(--text-muted);margin-bottom:6px}.stat-value{font-size:22px;font-weight:600}.stat-value.green{color:var(--green)}.stat-value.amber{color:var(--amber)}.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;margin-bottom:16px}.card-title{font-size:14px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px;color:var(--text)}.card-title svg{color:var(--green)}.info-banner{background:var(--blue-light);border:1px solid #b5d4f4;border-radius:var(--radius-sm);padding:10px 14px;color:var(--blue-mid);margin-bottom:20px}.info-banner,.inv-row{display:flex;align-items:center;gap:10px;font-size:13px}.inv-row{padding:11px 0;border-bottom:1px solid var(--border)}.inv-row:last-child{border-bottom:none;padding-bottom:0}.inv-num{color:var(--text-muted);min-width:88px;font-size:12px;font-family:monospace}.inv-desc{flex:1 1}.inv-date{color:var(--text-muted);font-size:12px;min-width:90px;text-align:right}.inv-amt{font-weight:600;min-width:68px;text-align:right}.book-row{display:flex;align-items:center;padding:11px 0;border-bottom:1px solid var(--border);gap:10px;font-size:13px}.book-row:last-child{border-bottom:none;padding-bottom:0}.book-info{flex:1 1}.book-info small{display:block;font-size:12px;color:var(--text-muted);margin-top:2px}.doc-row{display:flex;align-items:center;padding:11px 0;border-bottom:1px solid var(--border);gap:12px;font-size:13px}.doc-row:last-child{border-bottom:none;padding-bottom:0}.doc-info{flex:1 1}.doc-info small{display:block;font-size:12px;color:var(--text-muted);margin-top:2px}.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:600;white-space:nowrap}.badge-paid{background:#eaf3de;color:#27500a}.badge-due{background:var(--amber-light);color:#633806}.badge-overdue{background:var(--red-light);color:var(--red-mid)}.badge-confirm{background:#eaf3de;color:#27500a}.badge-pending{background:var(--blue-light);color:var(--blue-mid)}.badge-done{background:#f1f1f1;color:#555}.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--white);font-size:13px;cursor:pointer;color:var(--text);transition:background .15s}.btn:hover{background:var(--surface)}.btn-green{background:var(--green);color:#fff;border-color:var(--green)}.btn-green:hover{background:var(--green-dark)}.login-bg{min-height:100vh;background:var(--surface);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px}.login-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:36px 32px;width:100%;max-width:380px;text-align:center}.login-logo{width:52px;height:52px;background:var(--green);border-radius:50%;margin:0 auto 18px;display:flex;align-items:center;justify-content:center}.login-title{font-size:20px;font-weight:600;margin-bottom:6px}.login-desc{font-size:14px;color:var(--text-muted);margin-bottom:28px;line-height:1.6}.google-btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:11px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--white);cursor:pointer;font-size:14px;font-weight:500;color:var(--text);transition:background .15s}.google-btn:hover{background:var(--surface)}.login-footer{font-size:12px;color:var(--text-hint);margin-top:20px;line-height:1.7}.login-footer a{color:var(--green);text-decoration:none}.notice{background:#fffbeb;border:1px solid #fcd34d;border-radius:var(--radius-sm);padding:14px 16px;font-size:14px;color:#78350f}.spinner{display:inline-block;width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--green);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.loading-row{display:flex;align-items:center;gap:10px;padding:16px 0;font-size:14px;color:var(--text-muted)}@media (max-width:600px){.header,.nav{padding:0 16px}.page{padding:20px 16px}.header-user,.inv-date{display:none}}