:root{--primary: #f5b800;--primary-dark: #d49c00;--primary-light: #fefce8;--secondary: #64748b;--success: #16a34a;--danger: #dc2626;--warning: #d97706;--bg: #f8fafc;--surface: #ffffff;--border: #e2e8f0;--text: #1e293b;--text-muted: #64748b;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);--sidebar-bg: #ffffff;--sidebar-hover: #f8fafc;--sidebar-border: #e2e8f0;--sidebar-text: #64748b;--sidebar-text-active: #111118}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;font-size:14px}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;border:none;font-family:inherit;font-size:inherit;transition:background .15s,opacity .15s}input,textarea,select{font-family:inherit;font-size:inherit;border:1px solid var(--border);border-radius:var(--radius);padding:8px 12px;outline:none;background:var(--surface);color:var(--text);transition:border-color .15s,box-shadow .15s;width:100%}input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #f5b80026}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius);font-weight:500;cursor:pointer;transition:all .15s;border:none}.btn-primary{background:var(--primary);color:#111118;font-weight:600}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{background:var(--bg);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#b91c1c}.btn-sm{padding:5px 10px;font-size:12px}.btn:disabled{opacity:.5;cursor:not-allowed}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.3px}.badge-blue{background:#dbeafe;color:#1d4ed8}.badge-green{background:#dcfce7;color:#15803d}.badge-orange{background:#fed7aa;color:#c2410c}.badge-purple{background:#ede9fe;color:#7c3aed}.badge-gray{background:#f1f5f9;color:#475569}.badge-red{background:#fee2e2;color:#b91c1c}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.form-group{display:flex;flex-direction:column;gap:4px;margin-bottom:16px}.form-group label{font-weight:500;font-size:13px;color:var(--text)}.form-error{color:var(--danger);font-size:12px;margin-top:4px}.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px;text-align:center;color:var(--text-muted)}.empty-state svg{margin-bottom:16px;opacity:.4}.app-layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:240px;min-width:240px;background:var(--sidebar-bg);color:var(--sidebar-text);display:flex;flex-direction:column;overflow-y:auto;border-right:1px solid var(--sidebar-border);transition:width .2s cubic-bezier(.4,0,.2,1),min-width .2s cubic-bezier(.4,0,.2,1)}.sidebar-brand{padding:20px 16px;font-size:16px;font-weight:700;color:#fff;border-bottom:1px solid var(--sidebar-border);display:flex;align-items:center;gap:8px}.sidebar-nav{flex:1;padding:12px 8px;display:flex;flex-direction:column;gap:2px}.sidebar-nav a{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:6px;color:var(--sidebar-text);font-weight:500;text-decoration:none;transition:all .15s}.sidebar-nav a:hover{background:var(--sidebar-hover);color:var(--sidebar-text-active)}.sidebar-nav a.active{background:var(--primary);color:var(--sidebar-text-active);font-weight:700}.sidebar-user{padding:12px 16px;border-top:1px solid var(--sidebar-border);display:flex;align-items:center;gap:10px}.sidebar-user-info{flex:1;min-width:0}.sidebar-user-name{font-weight:600;color:var(--text);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-user-role{font-size:11px;color:var(--text-muted)}.main-area{flex:1;display:flex;flex-direction:column;overflow:hidden}.main-content{flex:1;overflow-y:auto;display:flex;flex-direction:column}.page-header{background:var(--surface);border-bottom:1px solid var(--border);padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.page-title{font-size:18px;font-weight:700;color:var(--text)}.page-body{padding:24px;flex:1}.doc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.doc-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;cursor:pointer;transition:border-color .15s,box-shadow .15s,transform .1s}.doc-card:hover{border-color:var(--primary);box-shadow:var(--shadow-md);transform:translateY(-1px)}.doc-card-icon{width:40px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:12px}.icon-pdf{background:#fee2e2}.icon-docx{background:#dbeafe}.icon-xlsx{background:#dcfce7}.icon-html{background:#fef3c7}.icon-video{background:#ede9fe}.doc-card-title{font-weight:600;font-size:14px;color:var(--text);margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.doc-card-desc{font-size:12px;color:var(--text-muted);margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.doc-card-meta{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--text-muted)}.viewer-layout{display:flex;height:100%;overflow:hidden}.viewer-main{flex:1;overflow:hidden;background:#1a1a22;display:flex;align-items:center;justify-content:center;position:relative}.viewer-embed{width:100%;height:100%;border:none}.viewer-sidebar{width:360px;min-width:360px;background:var(--surface);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.viewer-sidebar-header{padding:16px;border-bottom:1px solid var(--border)}.viewer-tabs{display:flex;border-bottom:1px solid var(--border)}.viewer-tab{flex:1;padding:10px;text-align:center;font-weight:500;font-size:13px;cursor:pointer;background:none;border:none;color:var(--text-muted);border-bottom:2px solid transparent;transition:all .15s}.viewer-tab.active{color:var(--primary);border-bottom-color:var(--primary)}.viewer-tab-content{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}.note-item{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:12px}.note-item-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.note-author{font-weight:600;font-size:12px}.note-date{font-size:11px;color:var(--text-muted)}.note-content{font-size:13px;line-height:1.5;white-space:pre-wrap;word-break:break-word}.note-actions{display:flex;gap:4px;margin-top:8px}.note-form{display:flex;flex-direction:column;gap:8px}.note-form textarea{resize:vertical;min-height:80px}.revision-item{display:flex;align-items:flex-start;gap:12px;padding:10px;border-radius:var(--radius);background:var(--bg);border:1px solid var(--border);cursor:pointer;transition:border-color .15s}.revision-item:hover{border-color:var(--primary)}.revision-item.current{border-color:var(--primary);background:var(--primary-light)}.revision-meta{flex:1;min-width:0}.revision-version{font-weight:700;font-size:13px}.revision-info{font-size:11px;color:var(--text-muted)}.revision-changelog{font-size:12px;color:var(--text);margin-top:4px;font-style:italic}.upload-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:32px;text-align:center;color:var(--text-muted);cursor:pointer;transition:border-color .15s,background .15s}.upload-zone:hover,.upload-zone.dragging{border-color:var(--primary);background:var(--primary-light);color:var(--primary)}.upload-zone input[type=file]{display:none}.filters-bar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:20px}.filters-bar input,.filters-bar select{max-width:220px}.pagination{display:flex;align-items:center;gap:8px;margin-top:24px;justify-content:center}.pagination-info{font-size:12px;color:var(--text-muted)}.table-container{overflow-x:auto}table{width:100%;border-collapse:collapse}th{text-align:left;padding:10px 12px;font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.4px;border-bottom:2px solid var(--border)}td{padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:middle}tr:hover td{background:var(--bg)}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#111118,#1a1a28,#111118)}.auth-card{background:var(--surface);border-radius:12px;padding:40px;width:100%;max-width:400px;box-shadow:0 20px 60px #0000004d}.auth-logo{text-align:center;margin-bottom:28px}.auth-logo h1{font-size:22px;font-weight:800;color:var(--text)}.auth-logo p{font-size:13px;color:var(--text-muted);margin-top:4px}.toast-container{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px}.toast{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;box-shadow:var(--shadow-md);display:flex;align-items:center;gap:10px;min-width:280px;max-width:400px;animation:slideIn .2s ease}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.toast-success{border-left:4px solid var(--success)}.toast-error{border-left:4px solid var(--danger)}.toast-info{border-left:4px solid var(--primary)}.mobile-topbar{display:none}.hamburger{display:none;background:none;border:none;color:var(--sidebar-text);padding:6px;cursor:pointer;border-radius:6px;transition:background .15s}.hamburger:hover{background:var(--sidebar-hover)}.viewer-toolbar{position:absolute;top:10px;right:10px;z-index:10;display:flex;gap:6px}.viewer-toolbar-btn{display:inline-flex;align-items:center;gap:5px;padding:6px 10px;background:#0000008c;color:#fff;border:none;border-radius:6px;font-size:12px;font-weight:500;cursor:pointer;transition:background .15s;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);white-space:nowrap}.viewer-toolbar-btn:hover{background:#000c}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:99}.sidebar-overlay.open{display:block}.viewer-tab[data-active=true]{color:var(--primary);border-bottom-color:var(--primary)}.sidebar-collapse-btn{display:none;background:none;border:none;color:var(--sidebar-text);cursor:pointer;padding:8px 12px;border-radius:6px;transition:all .15s;align-items:center;justify-content:flex-end;gap:6px;font-size:12px;margin:0 8px 4px;width:calc(100% - 16px)}.sidebar-collapse-btn:hover{background:var(--sidebar-hover);color:var(--text)}@media (min-width: 901px){.sidebar-collapse-btn{display:flex}.sidebar.collapsed{width:56px;min-width:56px;overflow:hidden}.sidebar.collapsed .sidebar-brand{justify-content:center;padding:16px 0}.sidebar.collapsed .sidebar-brand img{width:34px;height:34px;object-fit:cover;padding:2px}.sidebar.collapsed .nav-label{display:none}.sidebar.collapsed .sidebar-nav a{justify-content:center;padding:10px 0}.sidebar.collapsed .sidebar-user{flex-wrap:wrap;justify-content:center;padding:10px 4px;gap:6px}.sidebar.collapsed .sidebar-user-info{display:none}.sidebar.collapsed .sidebar-collapse-btn{justify-content:center;margin:0 0 4px;width:100%}}.panel-toggle-btn{position:absolute;right:0;top:50%;transform:translateY(-50%);z-index:5;background:var(--surface);border:1px solid var(--border);border-right:none;color:var(--text-muted);cursor:pointer;padding:14px 5px;border-radius:6px 0 0 6px;font-size:16px;line-height:1;transition:all .15s;box-shadow:-2px 0 6px #0000000f}.panel-toggle-btn:hover{color:var(--primary);background:var(--primary-light)}@media (max-width: 900px){.sidebar{position:fixed;left:-260px;top:0;bottom:0;width:260px;z-index:100;transition:left .25s cubic-bezier(.4,0,.2,1);box-shadow:none}.sidebar.open{left:0;box-shadow:4px 0 24px #00000040}.sidebar-overlay{display:block;visibility:hidden;opacity:0;transition:opacity .25s,visibility .25s}.sidebar-overlay.open{visibility:visible;opacity:1}.hamburger{display:flex;align-items:center;justify-content:center}.main-area{width:100%}.mobile-topbar{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--sidebar-bg);color:var(--text);border-bottom:1px solid var(--sidebar-border);position:sticky;top:0;z-index:50}.mobile-topbar-brand{flex:1;display:flex;align-items:center;gap:10px}.mobile-topbar-logo{height:28px;width:auto}.page-body{padding:16px}.page-header{padding:12px 16px}.doc-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}.filters-bar input,.filters-bar select{max-width:100%;flex:1 1 160px}.viewer-layout{flex-direction:column}.viewer-main{min-height:50vh;flex:none}.viewer-layout.panel-closed .viewer-main{flex:1;min-height:0}.viewer-sidebar{width:100%;min-width:unset;border-left:none;border-top:1px solid var(--border);flex:1;max-height:50vh;overflow-y:auto}.panel-toggle-btn{right:50%;top:auto;bottom:0;transform:translate(50%);border-radius:8px 8px 0 0;border:1px solid var(--border);border-bottom:none;border-right:1px solid var(--border);padding:8px 28px;box-shadow:0 -2px 6px #0000000f}}@media (max-width: 600px){.doc-grid{grid-template-columns:1fr}.auth-card{padding:24px;margin:16px}.page-body{padding:12px}.filters-bar{gap:8px}.table-hide-mobile{display:none}.viewer-main{min-height:40vh}.viewer-sidebar{max-height:60vh}.panel-toggle-btn{padding:6px 24px}.note-item-header{flex-direction:column;align-items:flex-start;gap:2px}.admin-tabs{flex-wrap:wrap}.admin-tabs .viewer-tab{flex:none}.table-container{-webkit-overflow-scrolling:touch}}.docx-render{background:#fff;max-width:860px;margin:0 auto;box-shadow:0 2px 8px #0000001f;border-radius:4px;padding:60px 72px;font-family:Calibri,Segoe UI,sans-serif;font-size:14px;line-height:1.6;color:#1e293b}.docx-render h1,.docx-render h2,.docx-render h3,.docx-render h4,.docx-render h5,.docx-render h6{margin:1em 0 .4em;font-weight:700;line-height:1.3}.docx-render p{margin:0 0 .6em}.docx-render table{border-collapse:collapse;width:100%;margin:1em 0}.docx-render td,.docx-render th{border:1px solid #cbd5e1;padding:6px 10px;vertical-align:top}.docx-render th{background:#f1f5f9;font-weight:600}.docx-render img{max-width:100%;height:auto}.docx-render ul,.docx-render ol{margin:.4em 0 .4em 1.4em}.docx-render li{margin-bottom:.2em}@media (max-width: 700px){.docx-render{padding:24px 16px}}@keyframes pwa-slide-in{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}