:root{--bg-primary: #0f1923;--bg-card: #1a2736;--bg-hover: #1f3044;--border: #253545;--text-primary: #e2e8f0;--text-secondary: #c8d6e5;--text-muted: #6b7f95;--accent: #00d4ff;--green: #48bb78;--red: #fc8181;--yellow: #f6e05e;--radius: 8px;--radius-lg: 12px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit;font-size:.95rem}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.page-container{max-width:1400px;margin:0 auto;padding:20px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px}.btn{padding:10px 20px;border:none;border-radius:var(--radius);font-weight:600;font-size:.9rem;transition:all .2s}.btn-primary{background:var(--accent);color:var(--bg-primary)}.btn-primary:hover{filter:brightness(1.1)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-success{background:var(--green);color:var(--bg-primary)}.btn-danger{background:var(--red);color:var(--bg-primary)}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text-secondary)}.btn-outline:hover{border-color:var(--accent);color:var(--accent)}.form-input{width:100%;padding:12px 16px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:.95rem;transition:border-color .2s}.form-input:focus{outline:none;border-color:var(--accent)}.form-input::placeholder{color:var(--text-muted)}.form-label{display:block;margin-bottom:6px;color:var(--text-secondary);font-size:.85rem;font-weight:500}.form-group{margin-bottom:16px}.badge{display:inline-block;padding:4px 10px;border-radius:20px;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.badge-buy{background:#48bb7826;color:var(--green)}.badge-sell{background:#fc818126;color:var(--red)}.badge-hold{background:#6b7f9526;color:var(--text-muted)}.nav{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:var(--bg-card);border-bottom:1px solid var(--border);margin-bottom:24px}.nav-brand{font-size:1.2rem;font-weight:700;color:var(--accent)}.nav-links{display:flex;gap:24px;align-items:center}.nav-link{color:var(--text-secondary);font-size:.9rem;font-weight:500;padding:8px 0;border-bottom:2px solid transparent;transition:all .2s}.nav-link:hover,.nav-link.active{color:var(--accent);border-bottom-color:var(--accent);text-decoration:none}.table{width:100%;border-collapse:collapse}.table th{text-align:left;padding:12px 16px;color:var(--text-muted);font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--border)}.table td{padding:14px 16px;border-bottom:1px solid var(--border);font-size:.9rem}.table tr:hover{background:var(--bg-hover)}.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-center{display:flex;justify-content:center;align-items:center;min-height:200px}.alert{padding:12px 16px;border-radius:var(--radius);margin-bottom:16px;font-size:.9rem}.alert-error{background:#fc81811a;border:1px solid rgba(252,129,129,.3);color:var(--red)}.alert-success{background:#48bb781a;border:1px solid rgba(72,187,120,.3);color:var(--green)}