:root{--primary-50: #eff6ff;--primary-100: #dbeafe;--primary-200: #bfdbfe;--primary-500: #3b82f6;--primary-600: #2563eb;--primary-700: #1d4ed8;--primary-800: #1e40af;--primary-900: #1e3a8a;--neutral-0: #ffffff;--neutral-50: #f8fafc;--neutral-100: #f1f5f9;--neutral-200: #e2e8f0;--neutral-300: #cbd5e1;--neutral-400: #94a3b8;--neutral-500: #64748b;--neutral-600: #475569;--neutral-700: #334155;--neutral-800: #1e293b;--neutral-900: #0f172a;--success-bg: #ecfdf5;--success-border: #a7f3d0;--success-text: #065f46;--success-accent: #10b981;--warning-bg: #fffbeb;--warning-border: #fde68a;--warning-text: #92400e;--warning-accent: #f59e0b;--error-bg: #fef2f2;--error-border: #fecaca;--error-text: #991b1b;--error-accent: #ef4444;--shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, .05);--shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, .08), 0 1px 2px -1px rgba(15, 23, 42, .08);--shadow-md: 0 4px 6px -1px rgba(15, 23, 42, .07), 0 2px 4px -2px rgba(15, 23, 42, .07);--shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, .08), 0 4px 6px -4px rgba(15, 23, 42, .04);--shadow-modal: 0 20px 25px -5px rgba(15, 23, 42, .15), 0 8px 10px -6px rgba(15, 23, 42, .1);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-full: 9999px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--transition: all .15s ease-in-out}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--neutral-50);color:var(--neutral-800);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app-container{min-height:100vh;display:flex;flex-direction:column}.app-header{background-color:var(--neutral-0);border-bottom:1px solid var(--neutral-200);position:sticky;top:0;z-index:40;box-shadow:var(--shadow-xs)}.header-inner{max-width:1080px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand-badge{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit}.brand-logo-icon{width:40px;height:40px;border-radius:var(--radius-md);background:linear-gradient(135deg,var(--primary-700),var(--primary-800));display:flex;align-items:center;justify-content:center;color:var(--neutral-0);box-shadow:var(--shadow-sm)}.brand-info h1{font-size:1.15rem;font-weight:700;color:var(--neutral-900);letter-spacing:-.01em;line-height:1.2}.brand-info p{font-size:.75rem;color:var(--neutral-500);font-weight:500}.header-actions{display:flex;align-items:center;gap:10px}.quota-pill{display:inline-flex;align-items:center;gap:6px;background-color:var(--primary-50);border:1px solid var(--primary-200);color:var(--primary-800);padding:6px 12px;border-radius:var(--radius-full);font-size:.8rem;font-weight:600}.main-content{flex:1;max-width:1080px;width:100%;margin:0 auto;padding:28px 20px 48px}.page-intro{margin-bottom:24px}.page-intro h2{font-size:1.5rem;font-weight:700;color:var(--neutral-900);letter-spacing:-.02em}.page-intro p{color:var(--neutral-600);font-size:.925rem;margin-top:4px}.section-card{background-color:var(--neutral-0);border:1px solid var(--neutral-200);border-radius:var(--radius-lg);padding:24px;margin-bottom:24px;box-shadow:var(--shadow-sm);transition:border-color .2s ease}.section-card:hover{border-color:var(--neutral-300)}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;gap:12px;flex-wrap:wrap}.section-title{display:flex;align-items:center;gap:10px}.section-step-badge{width:28px;height:28px;background-color:var(--primary-100);color:var(--primary-800);border-radius:50%;font-size:.85rem;font-weight:700;display:flex;align-items:center;justify-content:center}.section-title h3{font-size:1.1rem;font-weight:600;color:var(--neutral-900)}.section-subtitle{font-size:.85rem;color:var(--neutral-500);margin-top:2px}.form-group{margin-bottom:16px}.form-group:last-child{margin-bottom:0}.form-label{display:block;font-size:.875rem;font-weight:600;color:var(--neutral-700);margin-bottom:6px}.form-label-help{font-weight:400;color:var(--neutral-400);font-size:.8rem;margin-left:6px}.form-input{width:100%;padding:10px 14px;font-size:.95rem;font-family:inherit;color:var(--neutral-800);background-color:var(--neutral-0);border:1px solid var(--neutral-300);border-radius:var(--radius-md);outline:none;transition:var(--transition)}.form-input:focus{border-color:var(--primary-600);box-shadow:0 0 0 3px #2563eb26}.form-input::placeholder{color:var(--neutral-400)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;font-size:.925rem;font-weight:600;font-family:inherit;border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;transition:var(--transition);text-decoration:none;white-space:nowrap}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background-color:var(--primary-700);color:var(--neutral-0)}.btn-primary:hover:not(:disabled){background-color:var(--primary-800);box-shadow:var(--shadow-sm)}.btn-primary:active:not(:disabled){background-color:var(--primary-900)}.btn-secondary{background-color:var(--neutral-0);border-color:var(--neutral-300);color:var(--neutral-700)}.btn-secondary:hover:not(:disabled){background-color:var(--neutral-50);border-color:var(--neutral-400);color:var(--neutral-900)}.btn-danger{background-color:var(--error-accent);color:var(--neutral-0)}.btn-danger:hover:not(:disabled){background-color:var(--error-text)}.btn-ghost{background-color:transparent;color:var(--neutral-600);padding:8px 12px}.btn-ghost:hover:not(:disabled){background-color:var(--neutral-100);color:var(--neutral-900)}.btn-sm{padding:6px 12px;font-size:.825rem}.btn-lg{padding:14px 24px;font-size:1rem}.dropzone{border:2px dashed var(--neutral-300);border-radius:var(--radius-lg);padding:32px 20px;text-align:center;background-color:var(--neutral-50);cursor:pointer;transition:var(--transition)}.dropzone:hover,.dropzone.drag-active{border-color:var(--primary-600);background-color:var(--primary-50)}.dropzone-icon{width:48px;height:48px;margin:0 auto 12px;color:var(--primary-600);display:flex;align-items:center;justify-content:center}.dropzone-title{font-size:.975rem;font-weight:600;color:var(--neutral-800)}.dropzone-desc{font-size:.825rem;color:var(--neutral-500);margin-top:4px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-top:18px}.stat-card{background-color:var(--neutral-50);border:1px solid var(--neutral-200);border-radius:var(--radius-md);padding:14px 16px;text-align:left}.stat-label{font-size:.775rem;font-weight:600;color:var(--neutral-500);text-transform:uppercase;letter-spacing:.03em}.stat-value{font-size:1.45rem;font-weight:700;color:var(--neutral-900);margin-top:2px;line-height:1.2}.stat-card.valid .stat-value{color:var(--success-accent)}.stat-card.invalid .stat-value{color:var(--error-accent)}.stat-card.duplicates .stat-value{color:var(--warning-accent)}.table-container{margin-top:18px;border:1px solid var(--neutral-200);border-radius:var(--radius-md);overflow:hidden;background:var(--neutral-0)}.table-header-controls{padding:12px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;background-color:var(--neutral-50);border-bottom:1px solid var(--neutral-200);flex-wrap:wrap}.table-search{max-width:280px;font-size:.85rem;padding:6px 12px}.recipient-table{width:100%;border-collapse:collapse;font-size:.875rem;text-align:left}.recipient-table th{background-color:var(--neutral-50);color:var(--neutral-600);font-weight:600;padding:10px 16px;border-bottom:1px solid var(--neutral-200);font-size:.8rem;text-transform:uppercase;letter-spacing:.03em}.recipient-table td{padding:10px 16px;border-bottom:1px solid var(--neutral-100);color:var(--neutral-800)}.recipient-table tr:hover td{background-color:var(--neutral-50)}.recipient-table-scroll{max-height:260px;overflow-y:auto}.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:var(--radius-full);font-size:.725rem;font-weight:600}.badge-valid{background-color:var(--success-bg);color:var(--success-text);border:1px solid var(--success-border)}.badge-invalid{background-color:var(--error-bg);color:var(--error-text);border:1px solid var(--error-border)}.badge-duplicate{background-color:var(--warning-bg);color:var(--warning-text);border:1px solid var(--warning-border)}.editor-toolbar{display:flex;align-items:center;gap:4px;padding:8px 12px;background-color:var(--neutral-50);border:1px solid var(--neutral-300);border-bottom:none;border-top-left-radius:var(--radius-md);border-top-right-radius:var(--radius-md);flex-wrap:wrap}.toolbar-btn{background:transparent;border:1px solid transparent;border-radius:var(--radius-sm);padding:6px 10px;font-size:.85rem;color:var(--neutral-700);cursor:pointer;display:inline-flex;align-items:center;gap:4px;transition:var(--transition)}.toolbar-btn:hover{background-color:var(--neutral-200);color:var(--neutral-900)}.toolbar-divider{width:1px;height:20px;background-color:var(--neutral-300);margin:0 4px}.editor-textarea{width:100%;min-height:220px;padding:14px;font-family:inherit;font-size:.95rem;line-height:1.6;color:var(--neutral-800);background-color:var(--neutral-0);border:1px solid var(--neutral-300);border-bottom-left-radius:var(--radius-md);border-bottom-right-radius:var(--radius-md);outline:none;resize:vertical;transition:var(--transition)}.editor-textarea:focus{border-color:var(--primary-600)}.token-pill{display:inline-flex;align-items:center;gap:4px;background-color:var(--primary-100);color:var(--primary-800);padding:3px 8px;border-radius:var(--radius-sm);font-family:monospace;font-size:.8rem;font-weight:600;cursor:pointer;border:1px solid var(--primary-200);transition:var(--transition)}.token-pill:hover{background-color:var(--primary-200)}.attachments-list{display:flex;flex-direction:column;gap:8px;margin-top:14px}.attachment-item{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background-color:var(--neutral-50);border:1px solid var(--neutral-200);border-radius:var(--radius-md);gap:12px}.attachment-meta{display:flex;align-items:center;gap:10px;overflow:hidden}.attachment-name{font-size:.875rem;font-weight:500;color:var(--neutral-800);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.attachment-size{font-size:.775rem;color:var(--neutral-500)}.social-inputs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}.input-with-icon{position:relative;display:flex;align-items:center}.input-icon-left{position:absolute;left:12px;color:var(--neutral-400);display:flex;align-items:center;pointer-events:none}.input-with-icon .form-input{padding-left:38px}.action-buttons-group{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#0f172a99;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;padding:20px;z-index:100}.modal-card{background-color:var(--neutral-0);border-radius:var(--radius-lg);box-shadow:var(--shadow-modal);width:100%;max-width:640px;max-height:90vh;display:flex;flex-direction:column;overflow:hidden;animation:modalIn .2s cubic-bezier(.16,1,.3,1)}.modal-card.modal-lg{max-width:800px}@keyframes modalIn{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}.modal-header{padding:18px 24px;border-bottom:1px solid var(--neutral-200);display:flex;align-items:center;justify-content:space-between}.modal-header h3{font-size:1.15rem;font-weight:700;color:var(--neutral-900)}.modal-body{padding:24px;overflow-y:auto}.modal-footer{padding:16px 24px;border-top:1px solid var(--neutral-200);background-color:var(--neutral-50);display:flex;align-items:center;justify-content:flex-end;gap:12px}.progress-container{margin:18px 0}.progress-header{display:flex;justify-content:space-between;margin-bottom:8px;font-size:.85rem;font-weight:600;color:var(--neutral-700)}.progress-track{width:100%;height:10px;background-color:var(--neutral-200);border-radius:var(--radius-full);overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary-600),var(--primary-500));transition:width .3s ease}.alert-banner{padding:12px 16px;border-radius:var(--radius-md);margin-bottom:20px;display:flex;align-items:flex-start;gap:12px;font-size:.875rem}.alert-banner.info{background-color:var(--primary-50);border:1px solid var(--primary-200);color:var(--primary-800)}.alert-banner.success{background-color:var(--success-bg);border:1px solid var(--success-border);color:var(--success-text)}.alert-banner.warning{background-color:var(--warning-bg);border:1px solid var(--warning-border);color:var(--warning-text)}.alert-banner.error{background-color:var(--error-bg);border:1px solid var(--error-border);color:var(--error-text)}.login-wrapper{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background-color:var(--neutral-50)}.login-card{background-color:var(--neutral-0);border:1px solid var(--neutral-200);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);width:100%;max-width:440px;padding:36px 32px}.login-header{text-align:center;margin-bottom:28px}.login-logo{width:52px;height:52px;background:linear-gradient(135deg,var(--primary-700),var(--primary-800));border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;color:var(--neutral-0);margin:0 auto 16px;box-shadow:var(--shadow-sm)}.login-header h2{font-size:1.35rem;font-weight:700;color:var(--neutral-900)}.login-header p{color:var(--neutral-500);font-size:.85rem;margin-top:4px}.app-footer{border-top:1px solid var(--neutral-200);background-color:var(--neutral-0);padding:16px 20px;text-align:center;font-size:.8rem;color:var(--neutral-500)}@media(max-width:640px){.header-inner{flex-direction:column;align-items:flex-start}.header-actions{width:100%;justify-content:space-between}.section-card{padding:18px 14px}.action-buttons-group{flex-direction:column;align-items:stretch}.action-buttons-group .btn{width:100%}.stats-grid{grid-template-columns:1fr 1fr}}