:root{--bg-color: #0f172a;--card-bg: rgba(30, 41, 59, .7);--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-color: #3b82f6;--accent-hover: #2563eb;--border-color: rgba(255, 255, 255, .1);--error-color: #ef4444;--success-color: #10b981}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,sans-serif;background-color:var(--bg-color);background-image:radial-gradient(at 0% 0%,hsla(253,16%,7%,1) 0,transparent 50%),radial-gradient(at 50% 0%,hsla(225,39%,30%,.2) 0,transparent 50%),radial-gradient(at 100% 0%,hsla(339,49%,30%,.2) 0,transparent 50%);color:var(--text-primary);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem}.app-container{width:100%;max-width:480px;background:var(--card-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:24px;padding:2.5rem;box-shadow:0 25px 50px -12px #00000080;animation:fadeIn .5s ease-out}.portal-app-container{max-width:800px}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}h1{font-size:1.875rem;font-weight:700;margin-bottom:.5rem;text-align:center;letter-spacing:-.025em}p.subtitle{color:var(--text-secondary);text-align:center;margin-bottom:2rem;font-size:.95rem}.form-group{margin-bottom:1.5rem}label{display:block;font-size:.875rem;font-weight:600;margin-bottom:.5rem;color:var(--text-secondary)}input{width:100%;padding:.875rem 1rem;background:#0f172a99;border:1px solid var(--border-color);border-radius:12px;color:var(--text-primary);font-size:1rem;transition:all .2s ease}input:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 3px #3b82f633}button{width:100%;padding:.875rem;background-color:var(--accent-color);color:#fff;border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 4px 6px -1px #3b82f64d}button:hover{background-color:var(--accent-hover);transform:translateY(-1px);box-shadow:0 6px 8px -1px #3b82f666}button:active{transform:translateY(0)}button:disabled{opacity:.7;cursor:not-allowed;transform:none}.error-message{color:var(--error-color);background:#ef44441a;padding:.75rem;border-radius:8px;margin-bottom:1.5rem;font-size:.875rem;border:1px solid rgba(239,68,68,.2)}.dashboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.dashboard-header h1{margin-bottom:0;font-size:1.5rem}.btn-secondary{background:transparent;border:1px solid var(--border-color);width:auto;padding:.5rem 1rem;font-size:.875rem;box-shadow:none}.btn-secondary:hover{background:#ffffff0d}.files-grid{display:grid;gap:1rem}.file-card{display:flex;align-items:center;justify-content:space-between;background:#0f172a66;padding:1rem 1.5rem;border-radius:12px;border:1px solid var(--border-color);transition:transform .2s ease,background .2s ease}.file-card:hover{background:#0f172acc;transform:translate(4px);border-color:#fff3}.file-info{display:flex;align-items:center;gap:1rem}.file-icon{width:40px;height:40px;background:#3b82f61a;color:var(--accent-color);border-radius:8px;display:flex;align-items:center;justify-content:center}.file-name{font-weight:600;font-size:.95rem}.file-meta{font-size:.75rem;color:var(--text-secondary);margin-top:.25rem}.btn-download{width:auto;padding:.5rem 1.25rem;font-size:.875rem;border-radius:8px;text-decoration:none;display:inline-block}.empty-state{text-align:center;padding:3rem 1rem;color:var(--text-secondary)}