@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--bg-app:#f9fafb;--bg-surface:#fff;--bg-subtle:#f3f4f6;--bg-hover:#f3f4f6;--bg-input:#fff;--border-subtle:#e5e7eb;--border-strong:#d1d5db;--border-focus:#111827;--text-main:#111827;--text-muted:#6b7280;--text-faint:#9ca3af;--text-inverse:#fff;--primary-bg:#111827;--primary-hover:#1f2937;--primary-text:#fff;--status-active-bg:#fef3c7;--status-active-text:#92400e;--status-overdue-bg:#fee2e2;--status-overdue-text:#991b1b;--status-returned-bg:#ecfdf5;--status-returned-text:#065f46;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-full:9999px;--shadow-subtle:0 1px 3px 0 #0000000d, 0 1px 2px -1px #0000000d;--shadow-popover:0 10px 25px -5px #00000014, 0 8px 10px -6px #0000000a}[data-theme=dark]{--bg-app:#0f1117;--bg-surface:#161821;--bg-subtle:#1e212d;--bg-hover:#222634;--bg-input:#12141c;--border-subtle:#272a38;--border-strong:#383c4e;--border-focus:#e5e7eb;--text-main:#f3f4f6;--text-muted:#9ca3af;--text-faint:#6b7280;--text-inverse:#111827;--primary-bg:#f3f4f6;--primary-hover:#fff;--primary-text:#111827;--status-active-bg:#92400e40;--status-active-text:#fbbf24;--status-overdue-bg:#991b1b4d;--status-overdue-text:#f87171;--status-returned-bg:#065f4640;--status-returned-text:#34d399;--shadow-subtle:0 1px 3px 0 #0006;--shadow-popover:0 10px 25px -5px #0009}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-app);color:var(--text-main);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;line-height:1.5}button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}button{cursor:pointer;background:0 0;border:none}.top-nav{z-index:50;background-color:var(--bg-surface);border-bottom:1px solid var(--border-subtle);height:60px;position:sticky;top:0}.top-nav-container{justify-content:space-between;align-items:center;gap:16px;max-width:1080px;height:100%;margin:0 auto;padding:0 24px;display:flex}.brand-section{align-items:center;gap:10px;display:flex}.brand-icon{border-radius:var(--radius-sm);background-color:var(--text-main);width:28px;height:28px;color:var(--bg-surface);justify-content:center;align-items:center;display:flex}.brand-name{letter-spacing:-.01em;color:var(--text-main);font-size:.95rem;font-weight:700}.nav-tabs{background-color:var(--bg-subtle);border-radius:var(--radius-md);align-items:center;gap:4px;padding:4px;display:flex}.nav-tab-btn{border-radius:var(--radius-sm);color:var(--text-muted);align-items:center;gap:6px;padding:6px 14px;font-size:.84rem;font-weight:500;transition:all .12s;display:flex}.nav-tab-btn:hover{color:var(--text-main)}.nav-tab-btn.active{background-color:var(--bg-surface);color:var(--text-main);box-shadow:var(--shadow-subtle);font-weight:600}.tab-badge{border-radius:var(--radius-full);background-color:var(--border-subtle);color:var(--text-muted);padding:1px 6px;font-size:.72rem;font-weight:600}.tab-badge.badge-active{background-color:var(--text-main);color:var(--bg-surface)}.nav-actions{align-items:center;gap:8px;display:flex}.btn-icon-quiet{border-radius:var(--radius-sm);width:34px;height:34px;color:var(--text-muted);border:1px solid var(--border-subtle);background-color:var(--bg-surface);justify-content:center;align-items:center;transition:all .12s;display:flex}.btn-icon-quiet:hover{color:var(--text-main);border-color:var(--border-strong);background-color:var(--bg-hover)}.main-content{max-width:1080px;margin:0 auto;padding:32px 24px 80px}.view-section{display:none}.view-section.active{display:block}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:24px;display:flex}.page-title{letter-spacing:-.02em;color:var(--text-main);font-size:1.35rem;font-weight:700;line-height:1.2}.page-subtitle{color:var(--text-muted);margin-top:4px;font-size:.85rem}.page-actions{align-items:center;gap:10px;display:flex}.btn{border-radius:var(--radius-md);-webkit-user-select:none;user-select:none;white-space:nowrap;justify-content:center;align-items:center;gap:7px;padding:8px 14px;font-size:.85rem;font-weight:500;transition:all .12s;display:inline-flex}.btn-primary{background-color:var(--primary-bg);color:var(--primary-text)}.btn-primary:hover{background-color:var(--primary-hover)}.btn-secondary{background-color:var(--bg-surface);color:var(--text-main);border:1px solid var(--border-subtle)}.btn-secondary:hover{background-color:var(--bg-hover);border-color:var(--border-strong)}.btn-sm{border-radius:var(--radius-sm);padding:5px 10px;font-size:.78rem}.btn-danger-quiet{color:#dc2626;border:1px solid var(--border-subtle);background-color:#0000}.btn-danger-quiet:hover{color:#991b1b;background-color:#fee2e2;border-color:#fca5a5}[data-theme=dark] .btn-danger-quiet{color:#f87171}[data-theme=dark] .btn-danger-quiet:hover{color:#fca5a5;background-color:#991b1b4d;border-color:#f871714d}.filter-bar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.search-input-wrap{flex:1;max-width:340px;position:relative}.search-input-wrap svg{color:var(--text-faint);pointer-events:none;position:absolute;top:50%;left:10px;transform:translateY(-50%)}.search-input{border-radius:var(--radius-md);border:1px solid var(--border-subtle);background-color:var(--bg-surface);width:100%;color:var(--text-main);outline:none;padding:7px 12px 7px 32px;font-size:.82rem;transition:border-color .12s}.search-input:focus{border-color:var(--border-focus)}.subfilter-pills{align-items:center;gap:4px;display:flex}.subfilter-btn{border-radius:var(--radius-sm);color:var(--text-muted);padding:5px 12px;font-size:.78rem;font-weight:500;transition:all .12s}.subfilter-btn:hover{color:var(--text-main)}.subfilter-btn.active{background-color:var(--bg-subtle);color:var(--text-main);font-weight:600}.table-card{background-color:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-subtle);overflow:hidden}.table-responsive{width:100%;overflow-x:auto}.clean-table{border-collapse:collapse;text-align:left;width:100%;font-size:.84rem}.clean-table th{text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);background-color:var(--bg-app);border-bottom:1px solid var(--border-subtle);white-space:nowrap;padding:10px 18px;font-size:.72rem;font-weight:600}.clean-table td{border-bottom:1px solid var(--border-subtle);vertical-align:middle;color:var(--text-main);padding:14px 18px}.clean-table tr:last-child td{border-bottom:none}.clean-table tr:hover td{background-color:var(--bg-hover)}.cell-title{color:var(--text-main);font-weight:600}.cell-subtitle{color:var(--text-muted);margin-top:2px;font-size:.76rem}.code-pill{font-family:var(--font-mono);background-color:var(--bg-subtle);color:var(--text-muted);border-radius:4px;margin-right:6px;padding:2px 5px;font-size:.72rem}.status-pill{border-radius:var(--radius-full);white-space:nowrap;align-items:center;padding:2px 8px;font-size:.72rem;font-weight:500;display:inline-flex}.status-pill.status-active{background-color:var(--status-active-bg);color:var(--status-active-text)}.status-pill.status-overdue{background-color:var(--status-overdue-bg);color:var(--status-overdue-text)}.status-pill.status-returned{background-color:var(--status-returned-bg);color:var(--status-returned-text)}.status-pill.status-neutral{background-color:var(--bg-subtle);color:var(--text-muted)}.empty-box{text-align:center;color:var(--text-muted);padding:48px 20px}.empty-box p{margin-bottom:14px;font-size:.88rem}.modal-backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;background-color:#00000073;justify-content:center;align-items:center;padding:20px;animation:.15s fadeInBackdrop;display:none;position:fixed;inset:0}.modal-backdrop.open{display:flex}@keyframes fadeInBackdrop{0%{opacity:0}to{opacity:1}}@keyframes slideUpModal{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.modal-dialog{background-color:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);width:100%;max-width:480px;box-shadow:var(--shadow-popover);flex-direction:column;max-height:90vh;animation:.18s slideUpModal;display:flex;overflow:hidden}.modal-header-clean{border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.modal-title-clean{color:var(--text-main);font-size:1rem;font-weight:600}.modal-body-clean{flex-direction:column;gap:16px;padding:20px;display:flex;overflow-y:auto}.modal-footer-clean{border-top:1px solid var(--border-subtle);background-color:var(--bg-app);justify-content:flex-end;align-items:center;gap:10px;padding:14px 20px;display:flex}.form-field{flex-direction:column;gap:5px;display:flex}.form-label-clean{color:var(--text-main);justify-content:space-between;align-items:center;font-size:.8rem;font-weight:500;display:flex}.form-input-clean,.form-select-clean,.form-textarea-clean{border-radius:var(--radius-sm);border:1px solid var(--border-subtle);background-color:var(--bg-input);width:100%;color:var(--text-main);outline:none;padding:8px 12px;font-size:.85rem;transition:border-color .12s}.form-select-clean{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-position:right 10px center;background-repeat:no-repeat;padding-right:34px}[data-theme=dark] .form-select-clean{background-image:url("data:image/svg+xml,%3Csvg 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var(--border-subtle);border-radius:var(--radius-lg);flex-direction:column;gap:20px;width:100%;max-width:400px;padding:32px 28px;animation:.24s cubic-bezier(.16,1,.3,1) authSlideUp;display:flex;box-shadow:0 16px 36px -8px #00000014}@keyframes authSlideUp{0%{opacity:0;transform:translateY(14px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}.auth-header{text-align:center;flex-direction:column;align-items:center;gap:8px;display:flex}.auth-brand-badge{background-color:var(--bg-card);border:1px solid var(--border-subtle);color:var(--text-muted);border-radius:999px;align-items:center;gap:8px;padding:6px 12px;font-size:.78rem;font-weight:600;display:inline-flex}.auth-title{letter-spacing:-.02em;color:var(--text-main);margin-top:4px;font-size:1.35rem;font-weight:700}.auth-subtitle{color:var(--text-muted);font-size:.82rem;line-height:1.4}.auth-input-group{align-items:center;display:flex;position:relative}.auth-toggle-pwd{color:var(--text-muted);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;padding:4px;display:flex;position:absolute;right:10px}.auth-toggle-pwd:hover{color:var(--text-main)}.auth-remember-row{color:var(--text-muted);justify-content:space-between;align-items:center;font-size:.8rem;display:flex}.auth-checkbox-label{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:8px;display:flex}.auth-error{background-color:var(--status-overdue-bg);color:var(--status-overdue-text);border-radius:var(--radius-sm);border:1px solid #fecaca;align-items:center;gap:6px;padding:8px 12px;font-size:.78rem;display:none}.auth-error.visible{display:flex}.auth-hint{color:var(--text-muted);background-color:var(--bg-card);border-radius:var(--radius-sm);border:1px dashed var(--border-subtle);padding:10px 12px;font-size:.75rem;line-height:1.45}.auth-hint strong{color:var(--text-main)}.admin-badge-pill{background-color:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);color:var(--text-main);align-items:center;gap:6px;padding:4px 8px;font-size:.75rem;font-weight:600;display:inline-flex}.form-row-2{grid-template-columns:1fr 1fr;gap:12px;display:grid}.security-alert-box{background-color:var(--status-overdue-bg);border-radius:var(--radius-md);border:1px solid #fecaca;padding:14px}.security-alert-title{color:var(--status-overdue-text);margin-bottom:4px;font-size:.86rem;font-weight:600}.security-alert-desc{color:var(--text-main);font-size:.8rem;line-height:1.4}.security-list{color:var(--status-overdue-text);margin-top:8px;padding-left:18px;font-size:.78rem}.toast-container{z-index:200;pointer-events:none;flex-direction:column;gap:8px;display:flex;position:fixed;bottom:20px;right:20px}.toast{pointer-events:auto;background-color:var(--primary-bg);color:var(--primary-text);border-radius:var(--radius-md);box-shadow:var(--shadow-popover);opacity:0;align-items:center;gap:8px;padding:10px 16px;font-size:.82rem;font-weight:500;transition:all .16s;display:flex;transform:translateY(10px)}.toast.toast-show{opacity:1;transform:translateY(0)}@media (width<=768px){.top-nav{height:auto;min-height:60px}.top-nav-container{flex-wrap:wrap;justify-content:center;gap:8px;padding:8px 16px}.nav-tabs{order:3;justify-content:center;width:100%}.main-content{padding:20px 16px 60px}.nav-tab-btn span{font-size:.8rem}.nav-tab-btn{padding:6px 10px}.search-input-wrap{max-width:100%}.filter-bar{flex-direction:column;align-items:stretch}.subfilter-pills{justify-content:center}.page-header{flex-direction:column;align-items:flex-start;gap:12px}.form-row-2{grid-template-columns:1fr}.clean-table{font-size:.78rem}.clean-table th{padding:8px 12px}.clean-table td{padding:10px 12px}}