:root{--primary: #0f172a;--primary-light: #1e293b;--accent: #2563eb;--accent-hover: #1d4ed8;--background: #f8fafc;--card-bg: #ffffff;--text-main: #0f172a;--text-muted: #64748b;--border: #e2e8f0;--error: #ef4444;--success: #10b981;--shadow: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--radius: .75rem}*{box-sizing:border-box;transition:all .2s ease-in-out}body{font-family:Inter,system-ui,-apple-system,sans-serif;margin:0;padding:0;background-color:var(--background);color:var(--text-main);line-height:1.5;min-height:100vh}header{background-color:var(--primary);color:#fff;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:100;box-shadow:var(--shadow-md)}header h1{font-size:1.25rem;font-weight:700;margin:0;letter-spacing:-.025em}nav{display:flex;gap:1.5rem;align-items:center}nav a,nav button.link{color:#cbd5e1;text-decoration:none;font-size:.875rem;font-weight:500;padding:.5rem .75rem;border-radius:.5rem}nav a:hover,nav button.link:hover{color:#fff;background-color:var(--primary-light)}nav a.active{color:#fff;background-color:var(--accent)}main{padding:2rem 2rem 5rem;max-width:1000px;margin:0 auto}.card{background:var(--card-bg);padding:2rem;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);margin-bottom:1.5rem}.card h2,.card h3{margin-top:0;margin-bottom:1.5rem;font-weight:700;letter-spacing:-.025em}form{display:flex;flex-direction:column;gap:1rem}.form-group{display:flex;flex-direction:column;gap:.5rem}label{font-size:.875rem;font-weight:600;color:var(--text-muted)}input{padding:.75rem 1rem;border:1px solid var(--border);border-radius:.5rem;font-size:.875rem;font-family:inherit;background-color:#fff}input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #2563eb1a}input:disabled{background-color:var(--background);cursor:not-allowed;color:var(--text-muted)}button{padding:.75rem 1.5rem;border-radius:.5rem;font-size:.875rem;font-weight:600;cursor:pointer;border:none;background-color:var(--accent);color:#fff;display:inline-flex;align-items:center;justify-content:center;gap:.5rem}button:hover{background-color:var(--accent-hover);transform:translateY(-1px)}button:active{transform:translateY(0)}button.secondary{background-color:#fff;color:var(--text-main);border:1px solid var(--border)}button.secondary:hover{background-color:var(--background);border-color:#cbd5e1}button.danger{background-color:#fee2e2;color:var(--error)}button.danger:hover{background-color:#fecaca}.error{background-color:#fef2f2;color:var(--error);padding:.75rem 1rem;border-radius:.5rem;font-size:.875rem;border:1px solid #fee2e2;margin:1rem 0}.success{background-color:#ecfdf5;color:var(--success);padding:.75rem 1rem;border-radius:.5rem;font-size:.875rem;border:1px solid #d1fae5;margin:1rem 0}.doc-item{display:flex;justify-content:space-between;align-items:center;padding:1rem;border-bottom:1px solid var(--border)}.doc-item:last-child{border-bottom:none}.doc-info h4{margin:0;font-size:1rem;font-weight:600}.doc-info p{margin:.25rem 0 0;font-size:.75rem;color:var(--text-muted)}.doc-actions{display:flex;gap:.5rem}.doc-actions button{padding:.4rem .8rem;font-size:.75rem}#auth-tabs{background-color:var(--background);padding:.25rem;border-radius:.5rem;margin-bottom:2rem}#auth-tabs button{background:transparent;color:var(--text-muted);border:none;box-shadow:none;transform:none}#auth-tabs button.active{background:#fff;color:var(--text-main);box-shadow:var(--shadow)}footer{text-align:center;padding:2rem;color:var(--text-muted);font-size:.875rem;background:transparent;position:static;margin-top:auto}@media(max-width:640px){header{flex-direction:column;gap:1rem;padding:1rem}nav{gap:.5rem}main{padding:1rem}.doc-item{flex-direction:column;align-items:flex-start;gap:1rem}.doc-actions{width:100%;justify-content:flex-end}}#toast-container{position:fixed;top:1rem;left:50%;transform:translate(-50%);z-index:1000;display:flex;flex-direction:column;gap:.5rem;pointer-events:none;width:100%;max-width:400px;padding:0 1rem}.toast{padding:1rem 1.5rem;border-radius:.5rem;font-size:.875rem;font-weight:500;color:#fff;box-shadow:var(--shadow-md);pointer-events:auto;animation:slideDown .3s ease-out;display:flex;align-items:center;justify-content:center;text-align:center}.toast-info{background-color:var(--primary);border:1px solid var(--primary-light)}.toast-success{background-color:var(--success)}.toast-error{background-color:var(--error)}@keyframes slideDown{0%{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}