:root{--primary: #6366f1;--primary-light: #818cf8;--primary-dark: #4f46e5;--bg: #0f172a;--bg-secondary: #1e293b;--panel-card: #334155;--panel-border: #475569;--text: #f8fafc;--text-dim: #94a3b8;--text-muted: #64748b;--success: #22c55e;--success-bg: rgba(34, 197, 94, .15);--warning: #f59e0b;--warning-bg: rgba(245, 158, 11, .15);--error: #ef4444;--error-bg: rgba(239, 68, 68, .15);--info: #3b82f6;--info-bg: rgba(59, 130, 246, .15)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg);border-radius:4px}::-webkit-scrollbar-thumb{background:var(--panel-border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--primary)}*{scrollbar-width:thin;scrollbar-color:#475569 #0f172a}.login-page{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,var(--bg) 0%,var(--bg-secondary) 100%)}.login-box{background:var(--bg-secondary);padding:40px;border-radius:16px;border:1px solid var(--panel-border);box-shadow:0 25px 50px -12px #00000080;width:100%;max-width:400px}.login-box h1{text-align:center;margin-bottom:30px;color:var(--text);font-size:28px;font-weight:600}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-dim);font-size:14px}.form-group input,.form-group select,textarea{width:100%;padding:12px 16px;background:var(--panel-card);border:1px solid var(--panel-border);border-radius:8px;font-size:14px;color:var(--text);transition:all .2s}.form-group input:focus,.form-group select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #6366f133}.form-group input::placeholder,textarea::placeholder{color:var(--text-muted)}textarea{resize:vertical;min-height:100px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;white-space:nowrap}.btn:hover{background:var(--primary-dark);transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn:disabled{background:var(--panel-border);color:var(--text-muted);cursor:not-allowed;transform:none}.btn-secondary{background:var(--panel-card);border:1px solid var(--panel-border)}.btn-secondary:hover{background:var(--panel-border)}.btn-success{background:var(--success)}.btn-success:hover{background:#16a34a}.btn-danger{background:var(--error)}.btn-danger:hover{background:#dc2626}.btn-sm{padding:6px 12px;font-size:12px}.error{color:var(--error);margin-top:10px;text-align:center;font-size:14px}.dashboard{min-height:100vh}.header{background:var(--bg-secondary);padding:16px 24px;border-bottom:1px solid var(--panel-border);display:flex;justify-content:space-between;align-items:center}.header h1{font-size:20px;font-weight:600;color:var(--text)}.header-actions{display:flex;gap:10px}.nav-tabs{display:flex;gap:8px;padding:16px 24px;background:var(--bg-secondary);border-bottom:1px solid var(--panel-border);overflow-x:auto}.nav-tab{padding:8px 16px;background:transparent;border:1px solid transparent;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500;color:var(--text-dim);transition:all .2s;white-space:nowrap}.nav-tab:hover{background:var(--panel-card);color:var(--text)}.nav-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.content{padding:24px;max-width:1400px;margin:0 auto}.card{background:var(--bg-secondary);border:1px solid var(--panel-border);border-radius:12px;padding:24px;margin-bottom:20px}.card h2{margin-bottom:20px;font-size:18px;font-weight:600;color:var(--text)}.card h3{margin-bottom:16px;font-size:16px;font-weight:500;color:var(--text-dim)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--panel-card);border:1px solid var(--panel-border);border-radius:12px;padding:20px;text-align:center;transition:all .2s}.stat-card:hover{border-color:var(--primary);transform:translateY(-2px)}.stat-card .value{font-size:32px;font-weight:700;color:var(--primary-light);line-height:1.2}.stat-card .label{color:var(--text-dim);margin-top:8px;font-size:13px}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--panel-border)}.table th{background:var(--panel-card);font-weight:600;font-size:13px;color:var(--text-dim);text-transform:uppercase;letter-spacing:.5px}.table tr:hover td{background:#6366f10d}.table a{color:var(--primary-light);text-decoration:none;transition:color .2s}.table a:hover{color:var(--primary);text-decoration:underline}.status{display:inline-block;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:500}.status-success,.status-sent,.status-joined,.status-completed{background:var(--success-bg);color:var(--success)}.status-failed,.status-error{background:var(--error-bg);color:var(--error)}.status-pending{background:var(--warning-bg);color:var(--warning)}.status-in_progress,.status-sending,.status-joining{background:var(--info-bg);color:var(--info)}.text-success{color:var(--success)}.text-error{color:var(--error)}.text-warning{color:var(--warning)}.text-info{color:var(--info)}.text-muted{color:var(--text-muted)}.text-dim{color:var(--text-dim)}.bg-success{background:var(--success-bg)}.bg-error{background:var(--error-bg)}.bg-warning{background:var(--warning-bg)}.bg-info{background:var(--info-bg)}.phone-auth{max-width:400px}.phone-auth .step{margin-bottom:24px}.phone-auth .step-number{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;background:var(--primary);color:#fff;border-radius:50%;margin-right:12px;font-weight:600;font-size:14px}.user-info{background:var(--success-bg);border:1px solid var(--success);padding:16px;border-radius:8px;margin-top:12px}.user-info p{margin:4px 0;color:var(--success)}.user-info.error{background:var(--error-bg);border-color:var(--error)}.user-info.error p{color:var(--error)}.groups-list{display:flex;flex-direction:column;gap:8px}.group-item{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:var(--panel-card);border:1px solid var(--panel-border);border-radius:8px;transition:all .2s}.group-item:hover{border-color:var(--primary)}.group-item.selected{border-color:var(--primary);background:#6366f11a}.group-item .title{font-weight:500;color:var(--text)}.group-item .title a{color:var(--primary-light);text-decoration:none}.group-item .title a:hover{text-decoration:underline}.group-item .id{color:var(--text-muted);font-size:12px;margin-top:4px}input[type=checkbox]{width:18px;height:18px;accent-color:var(--primary);cursor:pointer}input[type=file]{color:var(--text-dim);font-size:14px}input[type=file]::file-selector-button{background:var(--panel-card);border:1px solid var(--panel-border);border-radius:6px;padding:8px 16px;color:var(--text);font-size:14px;cursor:pointer;margin-right:12px;transition:all .2s}input[type=file]::file-selector-button:hover{background:var(--panel-border)}.checkbox-group{max-height:300px;overflow-y:auto;background:var(--panel-card);border:1px solid var(--panel-border);border-radius:8px;padding:8px}.checkbox-item{display:flex;align-items:center;padding:10px 12px;border-radius:6px;transition:background .2s}.checkbox-item:hover{background:#6366f11a}.checkbox-item input{margin-right:12px}.checkbox-item label{cursor:pointer;color:var(--text);font-size:14px}.mt-10{margin-top:10px}.mt-20{margin-top:20px}.mb-10{margin-bottom:10px}.mb-20{margin-bottom:20px}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.card{animation:fadeIn .3s ease-out}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width: 768px){.content,.card{padding:16px}.stats-grid{grid-template-columns:repeat(2,1fr)}.nav-tabs{padding:12px 16px}.nav-tab{padding:6px 12px;font-size:13px}}