:root{--bg-base: #0f0f13;--bg-sidebar: #1a1a24;--bg-card: #1f1f2e;--bg-card-hover: #252538;--bg-input: #2a2a3d;--bg-modal: #1a1a28;--color-primary: #6c5ce7;--color-primary-hover: #7d6ff0;--color-success: #00b894;--color-warning: #fdcb6e;--color-danger: #e17055;--color-info: #74b9ff;--text-primary: #e2e8f0;--text-muted: #94a3b8;--text-disabled: #4a5568;--border: #2d2d42;--border-light: #3a3a52;--radius: 12px;--radius-sm: 8px;--radius-full: 9999px;--shadow: 0 4px 24px rgba(0, 0, 0, .4)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;background-color:var(--bg-base);color:var(--text-primary);font-family:Inter,sans-serif;font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-base)}::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-disabled)}h1,h2,h3,h4{font-weight:600;color:var(--text-primary)}h1{font-size:1.5rem}h2{font-size:1.25rem}h3{font-size:1rem}.btn,.btn-ghost,.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--radius-sm);font-size:.875rem;font-weight:500;cursor:pointer;border:none;transition:all .15s ease;text-decoration:none}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-ghost{background:transparent;color:var(--text-muted)}.btn-ghost:hover{background:var(--bg-card-hover);color:var(--text-primary)}.btn:disabled,.btn-primary:disabled,.btn-ghost:disabled{opacity:.5;cursor:not-allowed}.badge{display:inline-flex;align-items:center;padding:2px 10px;border-radius:var(--radius-full);font-size:.75rem;font-weight:500}.badge-sent{background:#00b89426;color:var(--color-success)}.badge-pending{background:#fdcb6e26;color:var(--color-warning)}.badge-failed{background:#e1705526;color:var(--color-danger)}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-size:.8125rem;font-weight:500;color:var(--text-muted)}.form-group input,.form-group textarea,.form-group select{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:inherit;font-size:.875rem;padding:10px 12px;outline:none;transition:border-color .15s;width:100%}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--color-primary)}.form-group input::placeholder,.form-group textarea::placeholder,.form-group select::placeholder{color:var(--text-disabled)}.form-group textarea{resize:vertical;min-height:80px}.modal-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;padding:24px}.modal-box{background:var(--bg-modal);border:1px solid var(--border);border-radius:var(--radius);padding:32px;width:100%;max-width:480px;box-shadow:var(--shadow)}