:root{--brand-crimson: #73091d;--brand-navy: #101b2e;--brand-gold: #df9630;--primary: #73091d;--primary-hover: #5c0717;--primary-pressed: #440510;--primary-soft: rgba(115,9,29,.09);--primary-softer: rgba(115,9,29,.04);--sidebar-bg: #101b2e;--sidebar-border: rgba(255,255,255,.08);--sidebar-text: rgba(255,255,255,.82);--sidebar-text-muted: rgba(255,255,255,.4);--sidebar-hover-bg: rgba(255,255,255,.07);--sidebar-active-bg: rgba(223,150,48,.15);--sidebar-active-text: #e8a93c;--sidebar-active-indicator: #df9630;--sidebar-user-bg: rgba(255,255,255,.06);--sidebar-user-border: rgba(255,255,255,.1);--ink-1: #0E1726;--ink-2: #2B3645;--ink-3: #586274;--ink-4: #8892A1;--ink-5: #B7BEC8;--surface-0: #FCFBF8;--surface-1: #FFFFFF;--surface-2: #F6F4EF;--surface-3: #EFEDE6;--border-1: #E7E3D8;--border-2: #DBD6C8;--border-strong: #C9C2B0;--status-loan: #2563EB;--status-loan-bg: #EBF2FE;--status-overdue: #C0362C;--status-overdue-bg: #FBECEA;--status-returned: #287A3E;--status-returned-bg: 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var(--t)}.loan-card:active{border-color:var(--border-2)}.loan-card-top{display:flex;align-items:flex-start;gap:8px}.loan-card-title{flex:1;min-width:0;font-weight:600;font-size:14px;color:var(--ink-1);line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.loan-card-student{display:flex;align-items:center;gap:8px}.loan-card-student-info{display:flex;flex-direction:column;min-width:0}.loan-card-student-name{font-size:13px;font-weight:500;color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.loan-card-student-grade{font-size:11px;color:var(--ink-4);font-family:var(--font-mono)}.loan-card-meta{display:flex;align-items:center;justify-content:space-between;padding:8px 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var(--sidebar-border);z-index:30;padding-bottom:env(safe-area-inset-bottom,0)}.more-sheet-overlay{display:block;position:fixed;inset:0;background:#00000073;z-index:40;opacity:0;pointer-events:none;transition:opacity .2s ease}.more-sheet-overlay.open{opacity:1;pointer-events:auto}.more-sheet{display:block;position:fixed;bottom:0;left:0;right:0;background:var(--sidebar-bg);border-radius:14px 14px 0 0;border-top:1px solid var(--sidebar-border);z-index:41;transform:translateY(100%);transition:transform .26s cubic-bezier(.32,.72,.24,1);padding-bottom:calc(env(safe-area-inset-bottom,0px) + 8px)}.more-sheet.open{transform:translateY(0)}.more-sheet-handle{width:36px;height:4px;background:#ffffff29;border-radius:2px;margin:10px auto 0}.more-sheet-items{padding:16px 12px 12px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}.more-sheet-item{display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px 8px;border-radius:10px;font-size:12px;font-weight:500;color:var(--sidebar-text);transition:background var(--t),color var(--t);border:1px solid transparent}.more-sheet-item.active{background:var(--sidebar-active-bg);color:var(--sidebar-active-text);border-color:#df963033}.more-sheet-item:active{background:var(--sidebar-hover-bg)}.more-sheet-divider{height:1px;background:var(--sidebar-border);margin:0 14px}.more-sheet-user{display:flex;align-items:center;gap:12px;padding:14px 16px 12px}.more-sheet-user-info .name{font-size:14px;font-weight:500;color:#ffffffe0}.more-sheet-user-info .role{font-size:11px;color:var(--sidebar-text-muted);font-family:var(--font-mono);letter-spacing:.04em;margin-top:2px}.more-sheet-logout{margin-left:auto;display:flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--radius);font-size:12px;font-weight:500;color:#ffffff80;transition:background var(--t),color var(--t)}.more-sheet-logout:hover,.more-sheet-logout:active{background:#ffffff14;color:#ff9090}.qr-scanner-overlay{align-items:flex-end;padding:0}.qr-scanner-modal{width:100%;max-width:100%;border-radius:20px 20px 0 0;animation:qr-slide-up .28s cubic-bezier(.32,.72,.24,1);max-height:92vh;overflow-y:auto}@keyframes qr-slide-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}.qr-scanner-handle{display:block;width:36px;height:4px;background:var(--border-2);border-radius:2px;margin:12px auto 0;flex-shrink:0}.qr-scanner-head{padding:8px 16px 12px}.qr-scanner-viewport{aspect-ratio:1/1}.qr-scanner-frame{width:65vw;height:65vw;max-width:260px;max-height:260px}.qr-scanner-steps{padding:8px 16px 0}.qr-scanner-footer{padding:10px 16px calc(14px + env(safe-area-inset-bottom,0px))}.qr-scanner-cancel-btn{min-height:52px;font-size:16px}.qr-scanner-head .icon-btn{min-width:44px;min-height:44px;border-radius:10px;background:var(--surface-2);color:var(--ink-2)}.qr-scanner-tab{min-height:44px;font-size:14px}.qr-scanner-gallery{padding:16px 16px 4px;min-height:200px}.qr-scanner-gallery-pick{min-height:160px;padding:28px 16px}.btn-scan-cam{min-width:44px;min-height:44px;padding:10px;border-radius:10px}}.qr-scanner-overlay{position:fixed;inset:0;background:#0e172699;z-index:70;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px);animation:qr-fade-in .18s ease-out}@keyframes qr-fade-in{0%{opacity:0}to{opacity:1}}.qr-scanner-modal{background:var(--surface-1);border:1px solid var(--border-2);border-radius:var(--radius-lg);width:420px;max-width:94vw;overflow:hidden;box-shadow:0 20px 60px #0e17264d;animation:qr-scale-in .24s cubic-bezier(.32,.72,.24,1);display:flex;flex-direction:column}@keyframes qr-scale-in{0%{transform:scale(.96) translateY(8px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}.qr-scanner-handle{display:none}.qr-scanner-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border-1);flex-shrink:0}.qr-scanner-viewport{position:relative;width:100%;aspect-ratio:4/3;background:#080c14;overflow:hidden;flex-shrink:0}.qr-scanner-video{width:100%;height:100%;object-fit:cover;display:none}.qr-scanner-video--visible{display:block}.qr-scanner-guide{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none}.qr-scanner-frame{width:200px;height:200px;position:relative;transition:transform .2s ease-out}.qr-scanner-frame .corner{position:absolute;width:28px;height:28px;border-color:var(--brand-gold);border-style:solid;border-width:0;transition:border-color .2s}.qr-scanner-frame .corner.tl{top:0;left:0;border-top-width:3px;border-left-width:3px;border-top-left-radius:6px}.qr-scanner-frame .corner.tr{top:0;right:0;border-top-width:3px;border-right-width:3px;border-top-right-radius:6px}.qr-scanner-frame .corner.bl{bottom:0;left:0;border-bottom-width:3px;border-left-width:3px;border-bottom-left-radius:6px}.qr-scanner-frame .corner.br{bottom:0;right:0;border-bottom-width:3px;border-right-width:3px;border-bottom-right-radius:6px}.qr-scanner-frame--detected .corner{border-color:#287a3e}.qr-scanner-line{position:absolute;left:8px;right:8px;height:2px;background:linear-gradient(90deg,transparent,var(--brand-gold),transparent);box-shadow:0 0 12px #df963080;animation:qr-scan-line 2.2s ease-in-out infinite}@keyframes qr-scan-line{0%,to{top:8px;opacity:.4}50%{top:calc(100% - 10px);opacity:1}}.qr-scanner-detected-overlay{position:absolute;inset:0;background:#287a3e52;display:flex;align-items:center;justify-content:center;animation:qr-detected-fade .4s ease-out}@keyframes 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li{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3)}.qr-scanner-steps li span{width:20px;height:20px;border-radius:50%;background:var(--surface-2);border:1px solid var(--border-1);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:600;color:var(--ink-4);flex-shrink:0}.qr-scanner-footer{padding:12px 18px 16px;flex-shrink:0}.qr-scanner-cancel-btn{width:100%;min-height:48px;background:var(--surface-2);border:1px solid var(--border-1);border-radius:8px;font-size:15px;color:var(--ink-2);font-weight:500;cursor:pointer;transition:background .15s}.qr-scanner-cancel-btn:hover{background:var(--surface-3, var(--border-1))}.qr-scanner-tabs{display:flex;border-bottom:1px solid var(--border-1);flex-shrink:0}.qr-scanner-tab{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:10px 12px;font-size:13px;font-weight:500;color:var(--ink-3);background:none;border:none;border-bottom:2px solid transparent;cursor:pointer;transition:color .15s,border-color .15s;margin-bottom:-1px}.qr-scanner-tab--active{color:var(--brand-crimson);border-bottom-color:var(--brand-crimson)}.qr-scanner-gallery{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:240px;padding:20px 20px 8px;gap:12px;flex:1}.qr-scanner-gallery-pick{width:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:32px 20px;background:var(--surface-2);border:2px dashed var(--border-2);border-radius:12px;cursor:pointer;transition:border-color .15s,background 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50%,transparent 70%);transform:translate(-100%);transition:transform .6s ease}.btn-scan-cam:hover:after{transform:translate(100%)}