:root {
  --bg: #f5f7fa;
  --surface: rgba(255, 255, 255, 0.8);
  --surface2: #ffffff;
  --border: rgba(0, 0, 0, 0.08);
  --border2: rgba(0, 0, 0, 0.12);
  --accent: #ef4a23;
  --accent2: #3749bb;
  --warn: #f59e0b;
  --danger: #ef4444;
  --text: #1a1f26;
  --muted: #626f81;
  --mono: 'Inter', sans-serif;
  --sans: 'Inter', sans-serif;
  --display: 'Outfit', sans-serif;
  --glass: blur(12px) saturate(180%);
}

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      background: var(--bg);
      color: var(--text);
      font-family: var(--sans);
      font-size: 14px;
      min-height: 100vh;
      line-height: 1.6;
    }

    /* Grid noise bg */
    body::before {
      content: '';
      position: fixed;
      inset: 0;
      background-image:
        linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
      background-size: 32px 32px;
      pointer-events: none;
      z-index: 0;
    }

    .container {
      max-width: 1100px;
      margin: 0 auto;
      padding: 32px 24px;
      position: relative;
      z-index: 1;
    }

    /* Header */
    .header {
      display: flex;
      align-items: flex-start;
      gap: 20px;
      margin-bottom: 40px;
      padding-bottom: 28px;
      border-bottom: 1px solid var(--border);
    }

    .logo-block {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .logo-tag {
      font-family: var(--mono);
      font-size: 10px;
      color: var(--accent);
      letter-spacing: 3px;
      text-transform: uppercase;
    }

    h1 {
      font-family: var(--display);
      font-size: 32px;
      font-weight: 700;
      letter-spacing: -1px;
      color: var(--text);
    }

    h1 span {
      color: var(--accent);
    }

    .subtitle {
      font-size: 15px;
      color: var(--muted);
      margin-top: 6px;
      font-weight: 400;
    }

    /* Input section */
    .input-section {
      display: grid;
      grid-template-columns: 1fr 280px;
      gap: 20px;
      margin-bottom: 24px;
      align-items: start;
    }

    .card {
      background: var(--surface);
      backdrop-filter: var(--glass);
      -webkit-backdrop-filter: var(--glass);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 24px;
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    }

    .card-label {
      font-family: var(--display);
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 2px;
      color: var(--accent);
      text-transform: uppercase;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .card-label::after {
      content: '';
      flex: 1;
      height: 1px;
      background: var(--border);
    }

    textarea {
      width: 100%;
      background: var(--surface2);
      border: 1px solid var(--border2);
      border-radius: 12px;
      color: var(--text);
      font-family: var(--mono);
      font-size: 14px;
      padding: 16px;
      resize: vertical;
      outline: none;
      line-height: 1.7;
      transition: all 0.2s;
    }

    textarea:focus {
      border-color: var(--accent);
    }

    textarea::placeholder {
      color: var(--muted);
    }

    .file-upload {
      margin-top: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .file-btn {
      background: var(--surface2);
      border: 1px solid var(--border2);
      color: var(--muted);
      padding: 7px 14px;
      border-radius: 5px;
      font-size: 12px;
      font-family: var(--mono);
      cursor: pointer;
      transition: all 0.2s;
    }

    .file-btn:hover {
      border-color: var(--accent);
      color: var(--accent);
    }

    #fileInput {
      display: none;
    }

    .file-hint {
      font-size: 11px;
      color: var(--muted);
    }

    /* Settings card */
    .settings-grid {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .setting-row label {
      display: block;
      font-family: var(--mono);
      font-size: 10px;
      letter-spacing: 1.5px;
      color: var(--muted);
      text-transform: uppercase;
      margin-bottom: 6px;
    }

    .setting-row select,
    .setting-row input {
      width: 100%;
      background: var(--surface2);
      border: 1px solid var(--border2);
      border-radius: 8px;
      color: var(--text);
      font-family: var(--mono);
      font-size: 13px;
      padding: 10px 12px;
      outline: none;
      transition: all 0.2s;
    }

    .setting-row select:focus,
    .setting-row input[type=number]:focus {
      border-color: var(--accent);
    }

    .setting-row select option {
      background: var(--surface);
    }

    .start-btn {
      width: 100%;
      margin-top: 8px;
      padding: 14px;
      background: var(--accent);
      color: #ffffff;
      border: none;
      border-radius: 10px;
      font-family: var(--display);
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      letter-spacing: 0.5px;
      transition: all 0.2s;
      text-transform: uppercase;
      box-shadow: 0 4px 12px rgba(239, 74, 35, 0.2);
    }

    .start-btn:hover {
      background: #f15c3a;
      transform: translateY(-1px);
    }

    .start-btn:disabled {
      background: var(--border2);
      color: var(--muted);
      cursor: not-allowed;
      transform: none;
    }

    .stop-btn {
      width: 100%;
      margin-top: 6px;
      padding: 10px;
      background: transparent;
      color: var(--danger);
      border: 1px solid var(--danger);
      border-radius: 6px;
      font-family: var(--mono);
      font-size: 12px;
      cursor: pointer;
      letter-spacing: 1px;
      transition: all 0.2s;
      display: none;
    }

    .stop-btn:hover {
      background: rgba(255, 92, 92, 0.1);
    }

    /* Progress */
    .progress-section {
      margin-bottom: 24px;
      display: none;
    }

    .progress-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 10px;
    }

    .progress-label {
      font-family: var(--mono);
      font-size: 12px;
      color: var(--muted);
    }

    .progress-count {
      font-family: var(--mono);
      font-size: 12px;
      color: var(--accent);
    }

    .progress-bar-track {
      height: 4px;
      background: var(--border);
      border-radius: 2px;
      overflow: hidden;
      margin-bottom: 10px;
    }

    .progress-bar-fill {
      height: 100%;
      background: var(--accent);
      border-radius: 2px;
      width: 0%;
      transition: width 0.4s ease;
    }

    .current-kw {
      font-family: var(--mono);
      font-size: 11px;
      color: var(--muted);
    }

    .current-kw span {
      color: var(--accent2);
    }

    /* Stats row */
    .stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      margin-bottom: 24px;
      display: none;
    }

    .stat-card {
      background: var(--surface2);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 18px;
      text-align: center;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    }

    .stat-num {
      font-family: var(--mono);
      font-size: 24px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 11px;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .stat-green .stat-num {
      color: var(--accent);
    }

    .stat-blue .stat-num {
      color: var(--accent2);
    }

    .stat-warn .stat-num {
      color: var(--warn);
    }

    .stat-red .stat-num {
      color: var(--danger);
    }

    /* Actions bar */
    .actions-bar {
      display: flex;
      gap: 10px;
      margin-bottom: 16px;
      align-items: center;
      display: none;
    }

    .export-btn {
      padding: 8px 16px;
      border-radius: 5px;
      font-family: var(--mono);
      font-size: 11px;
      font-weight: 500;
      cursor: pointer;
      letter-spacing: 1px;
      transition: all 0.2s;
      text-transform: uppercase;
      border: 1px solid var(--border2);
      background: var(--surface2);
      color: var(--text);
    }

    .export-btn:hover {
      border-color: var(--accent2);
      color: var(--accent2);
    }

    .export-btn.primary {
      background: var(--surface2);
      border-color: var(--accent);
      color: var(--accent);
    }

    .export-btn.primary:hover {
      background: rgba(0, 229, 160, 0.1);
    }

    .filter-input {
      margin-left: auto;
      background: var(--bg);
      border: 1px solid var(--border2);
      border-radius: 5px;
      color: var(--text);
      font-family: var(--mono);
      font-size: 12px;
      padding: 7px 12px;
      outline: none;
      width: 200px;
      transition: border-color 0.2s;
    }

    .filter-input:focus {
      border-color: var(--accent2);
    }

    .filter-input::placeholder {
      color: var(--muted);
    }

    /* Table */
    .table-wrap {
      background: var(--surface);
      backdrop-filter: var(--glass);
      -webkit-backdrop-filter: var(--glass);
      border: 1px solid var(--border);
      border-radius: 16px;
      overflow: hidden;
      display: none;
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    }

    table {
      width: 100%;
      border-collapse: collapse;
      font-size: 14px;
    }

    thead th {
      background: var(--surface);
      padding: 11px 16px;
      text-align: left;
      font-family: var(--mono);
      font-size: 10px;
      letter-spacing: 1.5px;
      color: var(--muted);
      text-transform: uppercase;
      border-bottom: 1px solid var(--border);
      white-space: nowrap;
      cursor: pointer;
      user-select: none;
      transition: color 0.15s;
    }

    thead th:hover {
      color: var(--text);
    }

    thead th.sort-asc::after {
      content: ' ↑';
      color: var(--accent);
    }

    thead th.sort-desc::after {
      content: ' ↓';
      color: var(--accent);
    }

    tbody tr {
      border-bottom: 1px solid var(--border);
      transition: background 0.15s;
    }

    tbody tr:last-child {
      border-bottom: none;
    }

    tbody tr:hover {
      background: var(--surface);
    }

    td {
      padding: 11px 16px;
      vertical-align: middle;
    }

    .td-num {
      font-family: var(--mono);
      color: var(--muted);
      font-size: 12px;
      width: 40px;
    }

    .td-keyword {
      font-weight: 500;
      max-width: 220px;
    }

    .rank-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-family: var(--mono);
      font-size: 13px;
      font-weight: 600;
      padding: 5px 12px;
      border-radius: 6px;
      min-width: 60px;
      text-align: center;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }

    .rank-top3 {
      background: rgba(0, 229, 160, 0.15);
      color: var(--accent);
      border: 1px solid rgba(0, 229, 160, 0.3);
    }

    .rank-top10 {
      background: rgba(0, 144, 255, 0.12);
      color: var(--accent2);
      border: 1px solid rgba(0, 144, 255, 0.25);
    }

    .rank-top30 {
      background: rgba(255, 179, 71, 0.12);
      color: var(--warn);
      border: 1px solid rgba(255, 179, 71, 0.25);
    }

    .rank-beyond {
      background: rgba(255, 92, 92, 0.1);
      color: var(--danger);
      border: 1px solid rgba(255, 92, 92, 0.2);
    }

    .rank-none {
      background: rgba(107, 122, 148, 0.12);
      color: var(--muted);
      border: 1px solid var(--border2);
    }

    .rank-error {
      background: rgba(255, 92, 92, 0.1);
      color: var(--danger);
      border: 1px solid rgba(255, 92, 92, 0.2);
    }

    .rank-checking {
      background: rgba(0, 229, 160, 0.06);
      color: var(--muted);
      border: 1px solid var(--border);
      animation: pulse 1.2s ease-in-out infinite;
    }

    @keyframes pulse {

      0%,
      100% {
        opacity: 1
      }

      50% {
        opacity: 0.4
      }
    }

    .td-url {
      min-width: 250px;
    }

    .url-container {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .rank-link {
      color: var(--accent2);
      text-decoration: none;
      font-size: 12px;
      font-family: var(--mono);
      max-width: 280px;
      display: block;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      transition: color 0.2s;
    }

    .rank-link:hover {
      color: var(--accent);
      text-decoration: underline;
    }

    .copy-btn-mini {
      background: var(--surface2);
      border: 1px solid var(--border2);
      color: var(--muted);
      width: 24px;
      height: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 4px;
      cursor: pointer;
      transition: all 0.2s;
      flex-shrink: 0;
    }

    .copy-btn-mini:hover {
      border-color: var(--accent);
      color: var(--accent);
      background: rgba(0, 229, 160, 0.05);
    }

    .td-title {
      color: var(--muted);
      font-size: 12px;
      max-width: 280px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .td-time {
      font-family: var(--mono);
      font-size: 11px;
      color: var(--muted);
      white-space: nowrap;
    }

    .empty-state {
      text-align: center;
      padding: 60px 20px;
      color: var(--muted);
    }

    .empty-state .icon {
      font-size: 32px;
      margin-bottom: 12px;
      opacity: 0.5;
    }

    /* Toast */
    .toast {
      position: fixed;
      bottom: 24px;
      right: 24px;
      background: var(--surface2);
      border: 1px solid var(--border2);
      border-radius: 8px;
      padding: 12px 18px;
      font-family: var(--mono);
      font-size: 12px;
      color: var(--text);
      z-index: 100;
      transform: translateY(80px);
      opacity: 0;
      transition: all 0.3s;
    }

    .toast.show {
      transform: translateY(0);
      opacity: 1;
    }

    .toast.success {
      border-color: rgba(0, 229, 160, 0.4);
      color: var(--accent);
    }

    .toast.error {
      border-color: rgba(255, 92, 92, 0.4);
      color: var(--danger);
    }

    @media (max-width: 768px) {
      .input-section {
        grid-template-columns: 1fr;
      }

      .stats-row {
        grid-template-columns: repeat(2, 1fr);
      }
    }