:root{--bg-primary: #0a0a0b;--bg-secondary: #111113;--bg-tertiary: #1a1a1f;--bg-hover: #222228;--bg-active: #2a2a32;--border-primary: #2a2a32;--border-secondary: #333340;--border-focus: #3b82f6;--text-primary: #f0f0f3;--text-secondary: #9898a6;--text-tertiary: #6b6b7b;--text-inverse: #0a0a0b;--accent-blue: #3b82f6;--accent-blue-hover: #2563eb;--accent-blue-muted: rgba(59, 130, 246, .12);--status-green: #22c55e;--status-green-bg: rgba(34, 197, 94, .12);--status-yellow: #eab308;--status-yellow-bg: rgba(234, 179, 8, .12);--status-red: #ef4444;--status-red-bg: rgba(239, 68, 68, .12);--status-blue: #3b82f6;--status-blue-bg: rgba(59, 130, 246, .12);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "SF Mono", "Fira Code", "Fira Mono", monospace;--transition: .15s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:14px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.5;min-height:100vh}a{color:var(--accent-blue);text-decoration:none}a:hover{text-decoration:underline}code,pre{font-family:var(--font-mono);font-size:.875rem}pre{background:var(--bg-primary);border:1px solid var(--border-primary);border-radius:var(--radius-md);padding:12px 16px;overflow-x:auto}::selection{background:var(--accent-blue);color:#fff}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-secondary);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}.app-layout{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--bg-secondary);border-right:1px solid var(--border-primary);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100}.sidebar-logo{padding:20px 20px 16px;border-bottom:1px solid var(--border-primary)}.sidebar-logo h1{font-size:1rem;font-weight:700;color:var(--text-primary);letter-spacing:-.02em}.sidebar-logo span{font-size:.75rem;color:var(--text-tertiary);display:block;margin-top:2px}.sidebar-nav{flex:1;padding:12px 8px;display:flex;flex-direction:column;gap:2px}.sidebar-nav a{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:var(--radius-sm);color:var(--text-secondary);font-size:.875rem;font-weight:500;transition:all var(--transition);text-decoration:none}.sidebar-nav a:hover{background:var(--bg-hover);color:var(--text-primary);text-decoration:none}.sidebar-nav a.active{background:var(--accent-blue-muted);color:var(--accent-blue)}.sidebar-nav .nav-icon{width:18px;height:18px;opacity:.7;flex-shrink:0}.sidebar-nav a.active .nav-icon{opacity:1}.sidebar-section-label{font-size:.688rem;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em;padding:16px 12px 6px}.sidebar-footer{padding:12px 16px;border-top:1px solid var(--border-primary);font-size:.75rem;color:var(--text-tertiary)}.main-content{flex:1;margin-left:240px;min-height:100vh}.page-header{padding:24px 32px 0}.page-header h2{font-size:1.5rem;font-weight:700;letter-spacing:-.02em;color:var(--text-primary)}.page-header p{color:var(--text-secondary);margin-top:4px;font-size:.875rem}.page-body{padding:24px 32px 48px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-bottom:24px}.two-col-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.three-col-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}@media (max-width: 1200px){.two-col-grid{grid-template-columns:1fr}.three-col-grid{grid-template-columns:1fr 1fr}}@media (max-width: 768px){.sidebar{display:none}.main-content{margin-left:0}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 16px;border-radius:var(--radius-sm);font-size:.875rem;font-weight:500;font-family:var(--font-sans);cursor:pointer;transition:all var(--transition);border:1px solid transparent;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent-blue);color:#fff;border-color:var(--accent-blue)}.btn-primary:hover:not(:disabled){background:var(--accent-blue-hover)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border-color:var(--border-secondary)}.btn-secondary:hover:not(:disabled){background:var(--bg-hover);border-color:var(--text-tertiary)}.btn-ghost{background:transparent;color:var(--text-secondary);border-color:transparent}.btn-ghost:hover:not(:disabled){background:var(--bg-hover);color:var(--text-primary)}.btn-danger{background:var(--status-red);color:#fff;border-color:var(--status-red)}.btn-danger:hover:not(:disabled){background:#dc2626}.btn-sm{padding:4px 10px;font-size:.813rem}.btn-lg{padding:10px 20px;font-size:1rem}.card{background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);padding:20px}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card-header h3{font-size:.938rem;font-weight:600;color:var(--text-primary)}.card-header .card-action{font-size:.813rem;color:var(--accent-blue);cursor:pointer}.stats-card{background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);padding:20px;display:flex;flex-direction:column;gap:8px}.stats-card .stats-label{font-size:.813rem;color:var(--text-secondary);font-weight:500}.stats-card .stats-value{font-size:1.75rem;font-weight:700;letter-spacing:-.02em;color:var(--text-primary)}.stats-card .stats-trend{font-size:.75rem;font-weight:500;display:flex;align-items:center;gap:4px}.stats-trend.up{color:var(--status-green)}.stats-trend.down{color:var(--status-red)}.stats-trend.neutral{color:var(--text-tertiary)}.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:100px;font-size:.75rem;font-weight:600;line-height:1.4}.badge-green{background:var(--status-green-bg);color:var(--status-green)}.badge-yellow{background:var(--status-yellow-bg);color:var(--status-yellow)}.badge-red{background:var(--status-red-bg);color:var(--status-red)}.badge-blue{background:var(--status-blue-bg);color:var(--status-blue)}.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor}.form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.form-label{font-size:.813rem;font-weight:500;color:var(--text-secondary)}.form-input,.form-select{padding:8px 12px;background:var(--bg-primary);border:1px solid var(--border-primary);border-radius:var(--radius-sm);color:var(--text-primary);font-size:.875rem;font-family:var(--font-sans);transition:border-color var(--transition)}.form-input:focus,.form-select:focus{outline:none;border-color:var(--border-focus);box-shadow:0 0 0 3px var(--accent-blue-muted)}.form-input::placeholder{color:var(--text-tertiary)}.form-row{display:flex;gap:12px;align-items:flex-end}.form-row .form-group{flex:1;margin-bottom:0}.table-wrapper{overflow-x:auto;border:1px solid var(--border-primary);border-radius:var(--radius-lg)}table{width:100%;border-collapse:collapse}thead{background:var(--bg-tertiary)}th{text-align:left;padding:10px 16px;font-size:.75rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid var(--border-primary)}td{padding:12px 16px;font-size:.875rem;color:var(--text-primary);border-bottom:1px solid var(--border-primary)}tr:last-child td{border-bottom:none}tbody tr:hover{background:var(--bg-hover)}td.mono{font-family:var(--font-mono);font-size:.813rem}.copy-block{display:flex;align-items:center;gap:8px;background:var(--bg-primary);border:1px solid var(--border-primary);border-radius:var(--radius-sm);padding:8px 12px;cursor:pointer;transition:border-color var(--transition)}.copy-block:hover{border-color:var(--border-secondary)}.copy-block code{flex:1;font-size:.813rem;color:var(--text-primary);word-break:break-all}.copy-block .copy-icon{flex-shrink:0;width:16px;height:16px;color:var(--text-tertiary);transition:color var(--transition)}.copy-block:hover .copy-icon{color:var(--text-secondary)}.copy-block.copied{border-color:var(--status-green)}.copy-block.copied .copy-icon{color:var(--status-green)}.alert{padding:14px 16px;border-radius:var(--radius-md);font-size:.875rem;line-height:1.5;margin-bottom:16px}.alert-info{background:var(--status-blue-bg);border:1px solid rgba(59,130,246,.25);color:var(--accent-blue)}.alert-success{background:var(--status-green-bg);border:1px solid rgba(34,197,94,.25);color:var(--status-green)}.alert-warning{background:var(--status-yellow-bg);border:1px solid rgba(234,179,8,.25);color:var(--status-yellow)}.alert-error{background:var(--status-red-bg);border:1px solid rgba(239,68,68,.25);color:var(--status-red)}.section{margin-bottom:32px}.section-title{font-size:1.125rem;font-weight:600;color:var(--text-primary);margin-bottom:4px}.section-desc{font-size:.875rem;color:var(--text-secondary);margin-bottom:16px}.inline-list{display:flex;gap:8px;flex-wrap:wrap}.loading{display:flex;align-items:center;justify-content:center;padding:48px;color:var(--text-tertiary)}.spinner{width:20px;height:20px;border:2px solid var(--border-primary);border-top-color:var(--accent-blue);border-radius:50%;animation:spin .6s linear infinite;margin-right:8px}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;padding:48px 24px;color:var(--text-tertiary)}.empty-state p{margin-top:8px;font-size:.875rem}.dns-record{margin-bottom:12px}.dns-record-header{display:flex;align-items:center;gap:8px;margin-bottom:6px}.dns-record-type{font-size:.688rem;font-weight:700;background:var(--bg-tertiary);color:var(--text-secondary);padding:2px 8px;border-radius:4px;text-transform:uppercase}.dns-record-name{font-size:.813rem;color:var(--text-secondary);font-family:var(--font-mono)}.steps{display:flex;gap:0;margin-bottom:32px}.step{flex:1;padding:16px 20px;background:var(--bg-secondary);border:1px solid var(--border-primary);position:relative;display:flex;align-items:center;gap:12px}.step:first-child{border-radius:var(--radius-md) 0 0 var(--radius-md)}.step:last-child{border-radius:0 var(--radius-md) var(--radius-md) 0}.step-number{width:28px;height:28px;border-radius:50%;background:var(--bg-tertiary);color:var(--text-tertiary);display:flex;align-items:center;justify-content:center;font-size:.813rem;font-weight:700;flex-shrink:0}.step.active .step-number{background:var(--accent-blue);color:#fff}.step.completed .step-number{background:var(--status-green);color:#fff}.step-label{font-size:.813rem;font-weight:500;color:var(--text-secondary)}.step.active .step-label{color:var(--text-primary)}.step.completed .step-label{color:var(--status-green)}.dropzone{border:2px dashed var(--border-secondary);border-radius:var(--radius-lg);padding:40px;text-align:center;cursor:pointer;transition:all var(--transition);background:var(--bg-secondary)}.dropzone:hover,.dropzone.dragging{border-color:var(--accent-blue);background:var(--accent-blue-muted)}.dropzone-icon{width:48px;height:48px;margin:0 auto 16px;color:var(--text-tertiary)}.dropzone h4{font-size:.938rem;font-weight:600;color:var(--text-primary);margin-bottom:4px}.dropzone p{font-size:.813rem;color:var(--text-tertiary)}.dropzone .browse-link{color:var(--accent-blue);cursor:pointer;font-weight:500}.dropzone.has-file{border-style:solid;border-color:var(--status-green);background:var(--status-green-bg)}.dropzone.has-file h4{color:var(--status-green)}.preview-table-wrapper{border:1px solid var(--border-primary);border-radius:var(--radius-lg);overflow:hidden;margin-top:16px}.preview-table-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg-tertiary);border-bottom:1px solid var(--border-primary)}.preview-table-header h4{font-size:.875rem;font-weight:600}.preview-table-header span{font-size:.75rem;color:var(--text-secondary)}.preview-table{max-height:400px;overflow-y:auto}.preview-row{display:grid;grid-template-columns:32px 1.5fr 1fr 1fr .7fr .7fr 100px;align-items:center;padding:8px 16px;border-bottom:1px solid var(--border-primary);font-size:.813rem}.preview-row:last-child{border-bottom:none}.preview-row.header{background:var(--bg-secondary);font-weight:600;color:var(--text-secondary);text-transform:uppercase;font-size:.688rem;letter-spacing:.04em}.preview-row .row-num{color:var(--text-tertiary);font-size:.75rem}.preview-row .cell{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding-right:8px}.preview-row .status-cell{display:flex;align-items:center;gap:4px}.preview-row .valid{color:var(--status-green)}.preview-row .invalid{color:var(--status-red)}.preview-row.row-invalid{background:var(--status-red-bg)}.csv-spec{border:1px solid var(--border-primary);border-radius:var(--radius-md);overflow:hidden}.csv-spec table{width:100%}.csv-spec th{background:var(--bg-tertiary);padding:8px 14px;font-size:.688rem}.csv-spec td{padding:8px 14px;font-size:.813rem}.csv-spec td:first-child{font-family:var(--font-mono);font-weight:600;color:var(--accent-blue)}.csv-spec .required{color:var(--status-red);font-weight:600;font-size:.75rem}.csv-spec .optional{color:var(--text-tertiary);font-size:.75rem}.results-panel{background:var(--bg-secondary);border:1px solid var(--status-green);border-radius:var(--radius-lg);padding:24px;margin-top:24px}.results-panel h3{color:var(--status-green);font-size:1.125rem;margin-bottom:16px}.results-credentials{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:20px}.credential-group{display:flex;flex-direction:column;gap:6px}.credential-group label{font-size:.75rem;color:var(--text-secondary);text-transform:uppercase;font-weight:600;letter-spacing:.04em}.sample-download{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;background:var(--bg-tertiary);border:1px solid var(--border-secondary);border-radius:var(--radius-md);color:var(--text-primary);cursor:pointer;font-size:.875rem;font-weight:500;transition:all var(--transition)}.sample-download:hover{background:var(--bg-hover);border-color:var(--text-tertiary);text-decoration:none}