@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";
:root{--color-bg-primary:#f8f9fc;--color-bg-secondary:#fff;--color-bg-tertiary:#f1f3f9;--color-bg-hover:#e8ecf4;--color-bg-active:#dde3ef;--color-bg-sidebar:#0f1729;--color-bg-sidebar-hover:#1a2744;--color-bg-sidebar-active:#243356;--color-bg-card:#fff;--color-bg-overlay:#0f172980;--color-bg-input:#fff;--color-bg-badge:#e8ecf4;--color-text-primary:#1a1f36;--color-text-secondary:#525f7f;--color-text-tertiary:#8898aa;--color-text-sidebar:#a0aec0;--color-text-sidebar-active:#fff;--color-text-inverse:#fff;--color-text-link:#5469d4;--color-text-on-accent:#fff;--color-accent:#5469d4;--color-accent-hover:#4355b5;--color-accent-light:#5469d41a;--color-accent-gradient:linear-gradient(135deg, #667eea 0%, #5469d4 50%, #764ba2 100%);--color-success:#28c76f;--color-success-light:#28c76f1a;--color-warning:#ff9f43;--color-warning-light:#ff9f431a;--color-danger:#ea5455;--color-danger-light:#ea54551a;--color-info:#00cfe8;--color-border:#e4e8ee;--color-border-light:#f0f2f7;--color-border-focus:#5469d4;--shadow-xs:0 1px 2px #0000000a;--shadow-sm:0 2px 4px #0000000f;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 8px 24px #0000001f;--shadow-xl:0 16px 48px #00000029;--font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-size-xs:.75rem;--font-size-sm:.8125rem;--font-size-base:.875rem;--font-size-md:1rem;--font-size-lg:1.125rem;--font-size-xl:1.25rem;--font-size-2xl:1.5rem;--font-size-3xl:2rem;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-full:9999px;--sidebar-width:280px;--header-height:64px;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-normal:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.35s cubic-bezier(.4, 0, .2, 1)}[data-theme=dark]{--color-bg-primary:#0f1729;--color-bg-secondary:#1a2332;--color-bg-tertiary:#1e2a3a;--color-bg-hover:#243044;--color-bg-active:#2d3a4e;--color-bg-sidebar:#0a0f1e;--color-bg-sidebar-hover:#141d30;--color-bg-sidebar-active:#1c2940;--color-bg-card:#1a2332;--color-bg-overlay:#0009;--color-bg-input:#1e2a3a;--color-bg-badge:#243044;--color-text-primary:#e4e8ee;--color-text-secondary:#a0aec0;--color-text-tertiary:#718096;--color-text-sidebar:#718096;--color-text-sidebar-active:#fff;--color-text-link:#7b8ff0;--color-border:#2d3748;--color-border-light:#1e2a3a;--color-border-focus:#667eea;--shadow-xs:0 1px 2px #0003;--shadow-sm:0 2px 4px #0000004d;--shadow-md:0 4px 12px #0006;--shadow-lg:0 8px 24px #00000080}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{font-family:var(--font-family);font-size:var(--font-size-base);color:var(--color-text-primary);background:var(--color-bg-primary);min-height:100vh;line-height:1.6}a{color:var(--color-text-link);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--color-accent-hover)}h1,h2,h3,h4,h5,h6{font-weight:var(--font-weight-semibold);color:var(--color-text-primary);line-height:1.3}.app-layout{min-height:100vh;display:flex}.main-content{margin-left:var(--sidebar-width);padding:var(--space-8);max-width:calc(100vw - var(--sidebar-width));flex:1;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--color-bg-sidebar);color:var(--color-text-sidebar);z-index:100;transition:transform var(--transition-normal);flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0;overflow:hidden}.sidebar-header{padding:var(--space-6);border-bottom:1px solid #ffffff0f}.sidebar-brand{align-items:center;gap:var(--space-3);display:flex}.sidebar-brand-icon{background:var(--color-accent-gradient);border-radius:var(--radius-md);color:#fff;width:36px;height:36px;font-weight:var(--font-weight-bold);font-size:var(--font-size-lg);flex-shrink:0;justify-content:center;align-items:center;display:flex}.sidebar-brand-text{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:#fff;letter-spacing:-.02em}.sidebar-search{padding:var(--space-4) var(--space-6)}.sidebar-search-input{width:100%;padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);color:#fff;font-size:var(--font-size-sm);font-family:var(--font-family);transition:all var(--transition-fast);background:#ffffff0f;border:1px solid #ffffff14;outline:none;padding-left:36px}.sidebar-search-input::placeholder{color:#ffffff59}.sidebar-search-input:focus{border-color:var(--color-accent);background:#ffffff1a;box-shadow:0 0 0 3px #5469d426}.sidebar-search-wrapper{position:relative}.sidebar-search-icon{color:#ffffff59;width:16px;height:16px;position:absolute;top:50%;left:10px;transform:translateY(-50%)}.sidebar-nav{padding:var(--space-2) var(--space-3)}.sidebar-nav-label{padding:var(--space-3) var(--space-3);font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.08em;color:#ffffff4d;font-weight:var(--font-weight-semibold)}.sidebar-nav-item{align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);color:var(--color-text-sidebar);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-fast);text-align:left;background:0 0;border:none;width:100%;text-decoration:none;display:flex}.sidebar-nav-item:hover{background:var(--color-bg-sidebar-hover);color:#fff}.sidebar-nav-item.active{background:var(--color-bg-sidebar-active);color:var(--color-text-sidebar-active)}.sidebar-nav-item-icon{opacity:.7;flex-shrink:0;width:20px;height:20px}.sidebar-nav-item.active .sidebar-nav-item-icon{opacity:1}.sidebar-clients{padding:var(--space-2) var(--space-3);flex:1;overflow-y:auto}.sidebar-clients::-webkit-scrollbar{width:4px}.sidebar-clients::-webkit-scrollbar-track{background:0 0}.sidebar-clients::-webkit-scrollbar-thumb{border-radius:var(--radius-full);background:#ffffff1a}.sidebar-client-item{align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);color:var(--color-text-sidebar);font-size:var(--font-size-sm);cursor:pointer;transition:all var(--transition-fast);text-decoration:none;display:flex}.sidebar-client-item:hover{background:var(--color-bg-sidebar-hover);color:#fff}.sidebar-client-item.active{background:var(--color-bg-sidebar-active);color:#fff}.sidebar-client-avatar{border-radius:var(--radius-md);width:32px;height:32px;font-size:var(--font-size-xs);font-weight:var(--font-weight-bold);color:#7b8ff0;background:#5469d433;flex-shrink:0;justify-content:center;align-items:center;display:flex}.sidebar-client-info{flex:1;min-width:0}.sidebar-client-name{text-overflow:ellipsis;white-space:nowrap;font-weight:var(--font-weight-medium);display:block;overflow:hidden}.sidebar-client-range{font-size:var(--font-size-xs);color:#ffffff4d}.sidebar-footer{padding:var(--space-4) var(--space-6);border-top:1px solid #ffffff0f}.sidebar-user{align-items:center;gap:var(--space-3);display:flex}.sidebar-user-avatar{border-radius:var(--radius-full);background:var(--color-accent-gradient);color:#fff;width:36px;height:36px;font-weight:var(--font-weight-bold);font-size:var(--font-size-sm);flex-shrink:0;justify-content:center;align-items:center;display:flex}.sidebar-user-info{flex:1;min-width:0}.sidebar-user-name{color:#fff;font-weight:var(--font-weight-medium);font-size:var(--font-size-sm);text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.sidebar-user-email{font-size:var(--font-size-xs);color:#fff6;text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.page-header{margin-bottom:var(--space-8);justify-content:space-between;align-items:center;gap:var(--space-4);display:flex}.page-header-left{gap:var(--space-1);flex-direction:column;display:flex}.page-title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);letter-spacing:-.02em}.page-subtitle{font-size:var(--font-size-base);color:var(--color-text-secondary)}.page-header-actions{gap:var(--space-3);align-items:center;display:flex}.btn{align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);font-family:var(--font-family);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;border:1px solid #0000;line-height:1.5;text-decoration:none;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-accent-gradient);color:var(--color-text-on-accent);box-shadow:var(--shadow-sm), 0 0 0 0 #5469d44d;border-color:#0000}.btn-primary:hover:not(:disabled){box-shadow:var(--shadow-md), 0 0 0 3px #5469d426;transform:translateY(-1px)}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-secondary{background:var(--color-bg-secondary);color:var(--color-text-primary);border-color:var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-bg-hover);border-color:var(--color-border)}.btn-ghost{color:var(--color-text-secondary);background:0 0;border-color:#0000}.btn-ghost:hover:not(:disabled){background:var(--color-bg-hover);color:var(--color-text-primary)}.btn-danger{background:var(--color-danger);color:#fff;border-color:#0000}.btn-danger:hover:not(:disabled){background:#d64243}.btn-sm{padding:var(--space-1) var(--space-2);font-size:var(--font-size-xs)}.btn-lg{padding:var(--space-3) var(--space-6);font-size:var(--font-size-md)}.btn-icon{padding:var(--space-2);justify-content:center;width:36px;height:36px}.card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-xs);transition:all var(--transition-fast);overflow:hidden}.card-hover:hover{box-shadow:var(--shadow-md);border-color:var(--color-accent);transform:translateY(-2px)}.card-header{padding:var(--space-5) var(--space-6);border-bottom:1px solid var(--color-border-light);justify-content:space-between;align-items:center;display:flex}.card-body{padding:var(--space-6)}.card-footer{padding:var(--space-4) var(--space-6);border-top:1px solid var(--color-border-light);background:var(--color-bg-tertiary)}.form-group{margin-bottom:var(--space-5)}.form-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);margin-bottom:var(--space-2);display:block}.form-hint{font-size:var(--font-size-xs);color:var(--color-text-tertiary);margin-top:var(--space-1)}.form-input{width:100%;padding:var(--space-2) var(--space-3);font-size:var(--font-size-base);font-family:var(--font-family);color:var(--color-text-primary);background:var(--color-bg-input);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:all var(--transition-fast);outline:none}.form-input:focus{border-color:var(--color-border-focus);box-shadow:0 0 0 3px var(--color-accent-light)}.form-input::placeholder{color:var(--color-text-tertiary)}.file-grid{gap:var(--space-4);grid-template-columns:repeat(auto-fill,minmax(260px,1fr));display:grid}.file-item{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-4);cursor:pointer;transition:all var(--transition-fast);gap:var(--space-3);flex-direction:column;display:flex}.file-item:hover{border-color:var(--color-accent);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.file-item-header{align-items:flex-start;gap:var(--space-3);display:flex}.file-item-icon{border-radius:var(--radius-md);flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;display:flex}.file-item-icon.folder{background:var(--color-warning-light);color:var(--color-warning)}.file-item-icon.file{background:var(--color-accent-light);color:var(--color-accent)}.file-item-info{flex:1;min-width:0}.file-item-name{font-weight:var(--font-weight-medium);text-overflow:ellipsis;white-space:nowrap;font-size:var(--font-size-sm);overflow:hidden}.file-item-meta{font-size:var(--font-size-xs);color:var(--color-text-tertiary);gap:var(--space-3);margin-top:var(--space-1);display:flex}.file-item-actions{gap:var(--space-1);opacity:0;transition:opacity var(--transition-fast);display:flex}.file-item:hover .file-item-actions{opacity:1}.file-list{border:1px solid var(--color-border);border-radius:var(--radius-lg);flex-direction:column;display:flex;overflow:hidden}.file-list-header{padding:var(--space-3) var(--space-4);background:var(--color-bg-tertiary);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-text-tertiary);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--color-border);grid-template-columns:1fr 120px 180px 80px;display:grid}.file-list-row{padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border-light);transition:background var(--transition-fast);cursor:pointer;grid-template-columns:1fr 120px 180px 80px;align-items:center;display:grid}.file-list-row:last-child{border-bottom:none}.file-list-row:hover{background:var(--color-bg-hover)}.file-list-name{align-items:center;gap:var(--space-3);font-weight:var(--font-weight-medium);font-size:var(--font-size-sm);min-width:0;display:flex}.file-list-name span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.file-list-size,.file-list-date{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.file-list-actions{gap:var(--space-1);opacity:0;transition:opacity var(--transition-fast);justify-content:flex-end;display:flex}.file-list-row:hover .file-list-actions{opacity:1}.upload-zone{border:2px dashed var(--color-border);border-radius:var(--radius-lg);padding:var(--space-10);text-align:center;cursor:pointer;transition:all var(--transition-fast);background:var(--color-bg-tertiary)}.upload-zone:hover,.upload-zone.dragover{border-color:var(--color-accent);background:var(--color-accent-light)}.upload-zone-icon{width:48px;height:48px;margin:0 auto var(--space-4);color:var(--color-text-tertiary)}.upload-zone-text{font-size:var(--font-size-base);color:var(--color-text-secondary);margin-bottom:var(--space-1)}.upload-zone-hint{font-size:var(--font-size-xs);color:var(--color-text-tertiary)}.breadcrumb{align-items:center;gap:var(--space-1);font-size:var(--font-size-sm);color:var(--color-text-tertiary);margin-bottom:var(--space-4);display:flex}.breadcrumb-item{cursor:pointer;color:var(--color-text-link);transition:color var(--transition-fast)}.breadcrumb-item:hover{color:var(--color-accent-hover)}.breadcrumb-item.current{color:var(--color-text-primary);font-weight:var(--font-weight-medium);cursor:default}.breadcrumb-separator{color:var(--color-text-tertiary)}.modal-overlay{background:var(--color-bg-overlay);z-index:1000;animation:fadeIn var(--transition-fast);padding:var(--space-4);justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--color-bg-card);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);width:100%;max-width:480px;max-height:90vh;animation:slideUp var(--transition-normal);flex-direction:column;display:flex}.modal-header{padding:var(--space-5) var(--space-6);border-bottom:1px solid var(--color-border-light);flex-shrink:0;justify-content:space-between;align-items:center;display:flex}.modal-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold)}.modal-body{padding:var(--space-6);flex:1;overflow-y:auto}.modal-footer{padding:var(--space-4) var(--space-6);border-top:1px solid var(--color-border-light);justify-content:flex-end;gap:var(--space-3);flex-shrink:0;display:flex}.toast-container{top:var(--space-4);right:var(--space-4);z-index:2000;gap:var(--space-2);flex-direction:column;display:flex;position:fixed}.toast{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-3) var(--space-4);box-shadow:var(--shadow-lg);align-items:center;gap:var(--space-3);min-width:300px;max-width:420px;animation:slideInRight var(--transition-normal);font-size:var(--font-size-sm);display:flex}.toast.success{border-left:3px solid var(--color-success)}.toast.error{border-left:3px solid var(--color-danger)}.toast.warning{border-left:3px solid var(--color-warning)}.toast-icon{flex-shrink:0}.toast-message{flex:1}.toast-close{cursor:pointer;color:var(--color-text-tertiary);padding:var(--space-1);background:0 0;border:none}.spinner{border:2px solid var(--color-border);border-top-color:var(--color-accent);border-radius:50%;width:20px;height:20px;animation:.6s linear infinite spin}.spinner-lg{border-width:3px;width:40px;height:40px}.loading-page{justify-content:center;align-items:center;gap:var(--space-4);min-height:60vh;color:var(--color-text-tertiary);flex-direction:column;display:flex}.empty-state{text-align:center;padding:var(--space-12);color:var(--color-text-tertiary)}.empty-state-icon{width:64px;height:64px;margin:0 auto var(--space-4);opacity:.5}.empty-state-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-2)}.empty-state-text{font-size:var(--font-size-sm);margin-bottom:var(--space-6);max-width:400px;margin-left:auto;margin-right:auto}.badge{padding:2px var(--space-2);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);border-radius:var(--radius-full);background:var(--color-bg-badge);color:var(--color-text-secondary);align-items:center;display:inline-flex}.badge-accent{background:var(--color-accent-light);color:var(--color-accent)}.badge-success{background:var(--color-success-light);color:var(--color-success)}.settings-section{margin-bottom:var(--space-8)}.settings-section-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);margin-bottom:var(--space-4);padding-bottom:var(--space-3);border-bottom:1px solid var(--color-border-light)}.settings-row{gap:var(--space-4);grid-template-columns:1fr 1fr;display:grid}.login-page{background:var(--color-bg-primary);min-height:100vh;padding:var(--space-4);justify-content:center;align-items:center;display:flex}.login-container{width:100%;max-width:420px}.login-card{text-align:center}.login-logo{background:var(--color-accent-gradient);border-radius:var(--radius-xl);width:64px;height:64px;margin:0 auto var(--space-6);color:#fff;font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);box-shadow:var(--shadow-lg);justify-content:center;align-items:center;display:flex}.login-title{font-size:var(--font-size-2xl);margin-bottom:var(--space-2)}.login-subtitle{color:var(--color-text-secondary);margin-bottom:var(--space-8)}.login-divider{align-items:center;gap:var(--space-3);margin:var(--space-6) 0;color:var(--color-text-tertiary);font-size:var(--font-size-xs);display:flex}.login-divider:before,.login-divider:after{content:"";background:var(--color-border);flex:1;height:1px}.login-btn-microsoft{width:100%;padding:var(--space-3) var(--space-4);font-size:var(--font-size-base);background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);cursor:pointer;font-family:var(--font-family);font-weight:var(--font-weight-medium);justify-content:center;align-items:center;gap:var(--space-3);transition:all var(--transition-fast);display:flex}.login-btn-microsoft:hover{background:var(--color-bg-hover);box-shadow:var(--shadow-sm)}.login-btn-microsoft svg{width:20px;height:20px}.stat-grid{gap:var(--space-4);margin-bottom:var(--space-8);grid-template-columns:repeat(auto-fit,minmax(240px,1fr));display:grid}.stat-card{padding:var(--space-5) var(--space-6)}.stat-card-label{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-text-tertiary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--space-2)}.stat-card-value{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);letter-spacing:-.02em}.stat-card-icon{border-radius:var(--radius-md);width:40px;height:40px;margin-bottom:var(--space-3);justify-content:center;align-items:center;display:flex}.stat-card-icon.accent{background:var(--color-accent-light);color:var(--color-accent)}.stat-card-icon.success{background:var(--color-success-light);color:var(--color-success)}.stat-card-icon.warning{background:var(--color-warning-light);color:var(--color-warning)}.view-toggle{background:var(--color-bg-tertiary);border-radius:var(--radius-md);border:1px solid var(--color-border);padding:2px;display:flex}.view-toggle-btn{padding:var(--space-1) var(--space-2);border-radius:var(--radius-sm);cursor:pointer;color:var(--color-text-tertiary);transition:all var(--transition-fast);background:0 0;border:none;justify-content:center;align-items:center;display:flex}.view-toggle-btn.active{background:var(--color-bg-secondary);color:var(--color-text-primary);box-shadow:var(--shadow-xs)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(100px)}to{opacity:1;transform:translate(0)}}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width:768px){.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.main-content{max-width:100vw;padding:var(--space-4);margin-left:0}.file-grid{grid-template-columns:1fr}.file-list-header,.file-list-row{grid-template-columns:1fr 80px}.file-list-date,.file-list-header>:nth-child(3){display:none}.settings-row{grid-template-columns:1fr}.page-header{flex-direction:column;align-items:flex-start}.stat-grid{grid-template-columns:1fr 1fr}}