:root{--primary: #2563eb;--primary-dark: #1e40af;--secondary: #64748b;--success: #10b981;--danger: #ef4444;--warning: #f59e0b;--background: #0f172a;--surface: #1e293b;--surface-light: #334155;--text: #f1f5f9;--text-secondary: #cbd5e1;--border: #475569;--shadow: rgba(0, 0, 0, .3)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Poppins,sans-serif;background:var(--background);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.btn{font-family:Poppins,sans-serif;padding:.75rem 1.5rem;border:none;border-radius:.5rem;font-size:.95rem;font-weight:500;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;gap:.5rem}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px #2563eb4d}.btn-secondary{background:var(--surface-light);color:var(--text)}.btn-secondary:hover{background:var(--border)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#dc2626}.btn:disabled{opacity:.5;cursor:not-allowed}.input{font-family:Poppins,sans-serif;width:100%;padding:.75rem 1rem;background:var(--surface);border:1px solid var(--border);border-radius:.5rem;color:var(--text);font-size:.95rem;transition:all .2s ease}.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1a}.input::placeholder{color:var(--secondary)}.card{background:var(--surface);border-radius:1rem;padding:1.5rem;box-shadow:0 4px 6px var(--shadow)}.alert{padding:1rem;border-radius:.5rem;margin-bottom:1rem}.alert-error{background:#ef44441a;border:1px solid var(--danger);color:#fca5a5}.alert-success{background:#10b9811a;border:1px solid var(--success);color:#6ee7b7}.alert-warning{background:#f59e0b1a;border:1px solid var(--warning);color:#fcd34d}.form-group{margin-bottom:1.25rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--text-secondary);font-size:.9rem}.spinner{border:3px solid var(--surface-light);border-top:3px solid var(--primary);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal{background:var(--surface);border-radius:1rem;padding:2rem;max-width:600px;width:90%;max-height:80vh;overflow-y:auto;box-shadow:0 20px 25px -5px #00000080}.dashboard-shell{--background: #f5f7fb;--surface: #ffffff;--surface-light: #f1f5f9;--text: #0f172a;--text-secondary: #64748b;--border: #e2e8f0;--shadow: rgba(15, 23, 42, .08);background:var(--background);color:var(--text);min-height:100vh;display:flex}.dashboard-sidebar{width:240px;background:var(--surface);border-right:1px solid var(--border);padding:1.5rem 1.25rem;display:flex;flex-direction:column;gap:2rem}.dashboard-logo{display:flex;gap:.75rem;align-items:center}.dashboard-logo-mark{width:38px;height:38px;border-radius:12px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600}.dashboard-logo-name{font-weight:600}.dashboard-logo-sub{font-size:.8rem;color:var(--text-secondary)}.dashboard-nav{display:flex;flex-direction:column;gap:.5rem}.dashboard-nav-item{background:transparent;border:1px solid transparent;padding:.6rem .75rem;text-align:left;border-radius:.6rem;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:all .2s ease}.dashboard-nav-item:hover{background:var(--surface-light);color:var(--text)}.dashboard-nav-item.active{background:#2563eb1f;color:var(--primary);border-color:#2563eb33}.dashboard-sidebar-footer{margin-top:auto;display:flex;flex-direction:column;gap:1rem}.dashboard-user{display:flex;align-items:center;gap:.75rem}.dashboard-user-avatar{width:40px;height:40px;border-radius:50%;background:var(--surface-light);display:flex;align-items:center;justify-content:center;font-weight:600}.dashboard-user-name{font-weight:600}.dashboard-user-meta{font-size:.8rem;color:var(--text-secondary)}.dashboard-main{flex:1;display:flex;flex-direction:column;min-width:0}.dashboard-topbar{background:var(--surface);border-bottom:1px solid var(--border);padding:1rem 2rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}.dashboard-search{flex:1;max-width:420px}.dashboard-search-input{width:100%;padding:.6rem .9rem;border-radius:.75rem;border:1px solid var(--border);background:var(--surface-light);color:var(--text);font-family:Poppins,sans-serif}.dashboard-actions{display:flex;align-items:center;gap:.75rem}.dashboard-content{padding:2rem}.dashboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.dashboard-title{font-size:1.6rem;font-weight:600}.dashboard-subtitle{color:var(--text-secondary);margin-top:.35rem}.dashboard-section{display:flex;flex-direction:column;gap:1rem}.file-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem}.file-card{background:var(--surface);border:1px solid var(--border);border-radius:.85rem;padding:1rem;display:flex;flex-direction:column;gap:.75rem;box-shadow:0 6px 12px var(--shadow)}.file-card-title{font-weight:600;font-size:1.05rem}.file-card-meta{font-size:.85rem;color:var(--text-secondary)}.file-card-actions{display:flex;flex-wrap:wrap;gap:.5rem}.login-page{background:radial-gradient(circle at top,#1d4ed8,#0f172a 45%,#020617)}.login-card{background:#0f172ae6;border:1px solid rgba(148,163,184,.2);box-shadow:0 20px 40px #02061780;color:#f8fafc}.login-card .form-label,.login-card p{color:#cbd5f5}.login-card .input{background:#0f172ab3;border-color:#94a3b833;color:#f8fafc}.login-card .btn-secondary{background:#3b82f633;color:#e2e8f0}.key-upload-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#e2e8f0e6;-webkit-backdrop-filter:none;backdrop-filter:none;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1.5rem}.key-upload-card{background:#fff;border:1px solid #e2e8f0;box-shadow:0 24px 48px #0f172a1f;max-width:560px;width:100%;padding:2rem;color:#0f172a;display:flex;flex-direction:column;gap:1.5rem}.key-upload-card .form-label{color:#1e293b}.key-upload-header h2{margin-bottom:.4rem}.key-upload-header p{color:#475569}.key-upload-field{display:flex;flex-direction:column;gap:.75rem}.key-upload-picker{display:flex;align-items:center;gap:.75rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:.75rem;padding:.75rem}.key-upload-input{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.key-upload-filename{color:#475569;font-size:.9rem;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.key-upload-selected{color:#16a34a;font-size:.9rem}.key-upload-note{margin-top:.5rem;font-size:.85rem}.key-upload-actions{display:flex;gap:1rem;justify-content:flex-end}.key-upload-actions .btn{min-width:140px}.fingerprint{font-family:Courier New,monospace;background:var(--background);padding:1rem;border-radius:.5rem;word-break:break-all;font-size:.85rem;color:var(--primary)}