:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--color-primary: #00a884;--color-primary-dark: #008f6f;--color-bg: #eefeec;--color-surface: #ffffff;--color-text: #111b21;--color-text-secondary: #667781;--color-border: #e9edef;--color-danger: #ef4444;--color-warning: #f59e0b;--shadow-sm: 0 1px 3px rgba(0,0,0,.1);--shadow-md: 0 4px 6px -1px rgba(0,0,0,.1);--radius: 8px}body{margin:0;font-family:Segoe UI,Helvetica Neue,Helvetica,Arial,sans-serif;background-color:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased}*{box-sizing:border-box}.app-container{max-width:1200px;margin:0 auto;padding:20px;height:100vh;display:flex;flex-direction:column}.header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;padding:10px 0}.header h1{margin:0;color:var(--color-primary-dark);font-size:1.5rem}.main-content{display:grid;grid-template-columns:350px 1fr;gap:20px;flex:1;min-height:0}.card{background:var(--color-surface);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:20px;display:flex;flex-direction:column}.card-header{font-weight:600;margin-bottom:15px;color:var(--color-primary-dark);border-bottom:1px solid var(--color-border);padding-bottom:10px}.form-group{margin-bottom:15px}.form-group label{display:block;margin-bottom:5px;font-size:.9rem;color:var(--color-text-secondary)}.form-control{width:100%;padding:10px;border:1px solid var(--color-border);border-radius:6px;font-size:.95rem;transition:border-color .2s}.form-control:focus{outline:none;border-color:var(--color-primary)}textarea.form-control{resize:vertical;min-height:100px}.btn{padding:10px 20px;border:none;border-radius:6px;font-weight:600;cursor:pointer;transition:background .2s;font-size:.95rem;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark)}.btn-primary:disabled{background:#a5d8c8;cursor:not-allowed}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover{opacity:.9}.btn-warning{background:var(--color-warning);color:#fff}.contact-list{overflow-y:auto;flex:1;padding-right:5px}.contact-item{display:flex;align-items:center;justify-content:space-between;padding:12px;border-bottom:1px solid var(--color-border);transition:background .2s}.contact-item:last-child{border-bottom:none}.contact-item:hover{background:#f9f9f9}.contact-info{display:flex;flex-direction:column}.contact-name{font-weight:500}.contact-phone{font-size:.85rem;color:var(--color-text-secondary)}.status-badge{padding:4px 8px;border-radius:12px;font-size:.75rem;font-weight:600;text-transform:uppercase}.status-pending{background:#e9edef;color:var(--color-text-secondary)}.status-sending{background:#fff7ed;color:var(--color-warning)}.status-sent{background:#dcf8c6;color:var(--color-primary-dark)}.status-failed{background:#fee2e2;color:var(--color-danger)}.progress-container{height:8px;background:#e9edef;border-radius:4px;overflow:hidden;margin:10px 0}.progress-bar{height:100%;background:var(--color-primary);transition:width .3s ease}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:20px}.stat-card{background:#f0f2f5;padding:10px;border-radius:6px;text-align:center}.stat-value{font-size:1.2rem;font-weight:700;color:var(--color-primary)}.stat-label{font-size:.8rem;color:var(--color-text-secondary)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ccc;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#bbb}