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

    :root {
      --bg: #0E0E0E;
      --surface: #1A1A1A;
      --surface-raised: #222222;
      --ink: #FFFFFF;
      --text: #E8E8E8;
      --text-muted: #999999;
      --text-dim: #666666;
      --border: #333333;
      --border-strong: #444444;
      --red: #FF2D2D;
      --red-hover: #FF4D4D;
      --red-glow: rgba(255, 45, 45, 0.25);
      --green: #22C55E;
      --blue: #3B82F6;
      --yellow: #FACC15;
      --orange: #F97316;
      --radius: 4px;
      --border-w: 2px;
      --shadow-hard: 4px 4px 0px 0px rgba(255, 45, 45, 0.35);
      --shadow-hard-sm: 3px 3px 0px 0px rgba(255, 45, 45, 0.25);
      --font-display: 'Space Grotesk', sans-serif;
      --font-mono: 'JetBrains Mono', monospace;
      --transition: 0.15s ease;
    }

    html { background: var(--bg); }

    body {
      font-family: var(--font-display);
      background: var(--bg);
      color: var(--text);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      line-height: 1.6;
    }

    body::before {
      content: '';
      position: fixed;
      inset: 0;
      background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,45,45,0.015) 2px, rgba(255,45,45,0.015) 4px);
      pointer-events: none;
      z-index: 0;
    }

    /* ── Topbar ── */
    .topbar {
      width: 100%;
      background: var(--surface);
      border-bottom: var(--border-w) solid var(--border);
      box-shadow: 0 4px 0 0 rgba(0,0,0,0.4);
      padding: 0 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      height: 60px;
      position: sticky;
      top: 0;
      z-index: 100;
    }

    .topbar-inner {
      width: 100%;
      max-width: 860px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
      transition: 0.15s ease;
    }
    .logo:hover { transform: translateY(-1px); }

    .logo-icon {
      width: 38px;
      height: 38px;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
      transition: 0.15s ease;
      filter: drop-shadow(0 2px 8px rgba(255, 30, 45, 0.35));
    }
    .logo:hover .logo-icon {
      filter: drop-shadow(0 4px 14px rgba(255, 45, 60, 0.65));
    }
    .logo-icon svg { width: 100%; height: 100%; display: block; }

    .logo-text {
      font-family: var(--font-mono);
      font-size: 20px;
      font-weight: 800;
      color: var(--ink);
      letter-spacing: 1px;
    }

    .logo-text span { color: var(--red); }

    .topbar-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .lang-group {
      display: inline-flex;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      height: 28px;
      flex-shrink: 0;
      box-sizing: border-box;
      background: var(--surface);
    }

    .lang-btn {
      padding: 0 9px;
      height: 100%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-family: var(--font-mono);
      font-size: 10.5px;
      font-weight: 700;
      border: none;
      cursor: pointer;
      background: transparent;
      color: var(--text-dim);
      transition: var(--transition);
      line-height: 1;
    }

    .lang-btn.active {
      background: var(--red);
      color: var(--ink);
    }

    .lang-btn:not(.active):hover {
      background: var(--surface-hover);
      color: var(--text);
    }

    .back-btn {
      font-family: var(--font-mono);
      font-size: 10.5px;
      font-weight: 700;
      color: var(--text-muted);
      text-decoration: none;
      text-transform: uppercase;
      letter-spacing: 0.4px;
      height: 28px !important;
      line-height: 28px !important;
      padding: 0 10px !important;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      transition: var(--transition);
      box-shadow: none !important;
      white-space: nowrap !important;
      word-break: keep-all !important;
      display: inline-flex !important;
      align-items: center !important;
      justify-content: center !important;
      flex-direction: row !important;
      flex-shrink: 0 !important;
      box-sizing: border-box !important;
      background: var(--surface);
    }
    .back-btn * {
      white-space: nowrap !important;
    }

    .back-btn:hover {
      color: var(--ink);
      border-color: var(--red);
      background: var(--surface-hover);
      box-shadow: 0 0 8px rgba(255, 45, 45, 0.2) !important;
      transform: translateY(-1px);
    }
    .back-btn:active {
      transform: translateY(0);
      box-shadow: none !important;
    }

    /* ── Main ── */
    main {
      width: 100%;
      max-width: 860px;
      padding: 40px 20px;
      position: relative;
      z-index: 1;
    }

    .page-title {
      font-family: var(--font-display);
      font-size: 32px;
      font-weight: 700;
      color: var(--ink);
      letter-spacing: -1px;
      margin-bottom: 8px;
    }

    .page-title em { font-style: normal; color: var(--red); }

    .page-sub {
      font-family: var(--font-mono);
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .base-url {
      font-family: var(--font-mono);
      font-size: 14px;
      font-weight: 700;
      color: var(--green);
      background: var(--surface);
      border: var(--border-w) solid var(--border);
      border-radius: var(--radius);
      padding: 12px 16px;
      margin-bottom: 32px;
      display: block;
      box-shadow: var(--shadow-hard-sm);
    }

    /* ── Public API Key Generator ── */
    .generator-card {
      background: linear-gradient(145deg, #18181e 0%, #111115 100%);
      border: var(--border-w) solid var(--red);
      border-radius: var(--radius);
      padding: 24px;
      margin-bottom: 36px;
      box-shadow: 0 0 24px rgba(255,45,45,0.18), var(--shadow-hard);
      position: relative;
      overflow: hidden;
    }
    .generator-card::before {
      content: '';
      position: absolute;
      top: -30px;
      right: -30px;
      width: 140px;
      height: 140px;
      background: radial-gradient(circle, rgba(255,45,45,0.22) 0%, transparent 70%);
      pointer-events: none;
    }
    .generator-title {
      font-size: 19px;
      font-weight: 700;
      color: var(--ink);
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 8px;
    }
    .generator-desc {
      font-size: 13.5px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.5;
    }
    .generator-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 18px;
    }
    .gen-badge {
      font-family: var(--font-mono);
      font-size: 11px;
      padding: 5px 12px;
      border-radius: 4px;
      background: rgba(255,255,255,0.05);
      border: 1px solid var(--border);
      color: var(--text);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .spin { animation: spin 1s linear infinite; }
    @keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
    .gen-badge.highlight {
      background: rgba(255,45,45,0.12);
      border-color: rgba(255,45,45,0.45);
      color: #ff6070;
      font-weight: 700;
    }
    .generator-form {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }
    .gen-input {
      flex: 1;
      min-width: 260px;
      background: #0a0a0e;
      border: var(--border-w) solid var(--border);
      border-radius: var(--radius);
      padding: 12px 16px;
      font-family: var(--font-mono);
      font-size: 13px;
      color: var(--ink);
      outline: none;
      transition: var(--transition);
    }
    .gen-input:focus {
      border-color: var(--red);
      box-shadow: 0 0 12px var(--red-glow);
    }
    .gen-btn {
      font-family: var(--font-mono);
      font-size: 13px;
      font-weight: 700;
      background: var(--red);
      color: #fff;
      border: none;
      border-radius: var(--radius);
      padding: 12px 24px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
      box-shadow: 0 4px 12px rgba(255,45,45,0.35);
      white-space: nowrap;
    }
    .gen-btn:hover {
      background: var(--red-hover);
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(255,45,45,0.55);
    }
    .gen-btn:disabled {
      opacity: 0.5;
      cursor: not-allowed;
      transform: none;
    }
    .gen-result {
      margin-top: 20px;
      padding: 18px;
      background: #09090c;
      border: 1px solid rgba(0, 230, 118, 0.4);
      border-radius: var(--radius);
      display: none;
      animation: fadeIn 0.3s ease;
    }
    .gen-result.visible { display: block; }
    .gen-result-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 10px;
    }
    .gen-key-display {
      display: flex;
      align-items: center;
      gap: 10px;
      background: #14141a;
      padding: 12px 16px;
      border-radius: 4px;
      border: 1px solid #333;
      margin-bottom: 14px;
    }
    .gen-key-text {
      font-family: var(--font-mono);
      font-size: 14px;
      font-weight: 700;
      color: #00E676;
      word-break: break-all;
      flex: 1;
    }
    .gen-copy-btn {
      font-family: var(--font-mono);
      font-size: 12px;
      background: #252530;
      color: #fff;
      border: 1px solid #444;
      border-radius: 4px;
      padding: 8px 14px;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }
    .gen-copy-btn:hover {
      background: var(--red);
      border-color: var(--red);
    }
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(-6px); }
      to { opacity: 1; transform: translateY(0); }
    }

    /* ── API Section ── */
    .api-section {
      margin-bottom: 24px;
    }

    .api-card {
      background: var(--surface);
      border: var(--border-w) solid var(--border-strong);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-hard-sm);
      margin-bottom: 16px;
    }

    .api-header {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 16px 20px;
      cursor: pointer;
      transition: var(--transition);
      border-bottom: 1px solid var(--border);
    }

    .api-header:hover { background: var(--surface-raised); }

    .method-badge {
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: var(--radius);
      border: var(--border-w) solid;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .method-badge.get { color: var(--green); border-color: var(--green); background: rgba(34,197,94,0.1); }
    .method-badge.post { color: var(--blue); border-color: var(--blue); background: rgba(59,130,246,0.1); }
    .method-badge.delete { color: var(--red); border-color: var(--red); background: rgba(255,45,45,0.1); }

    .api-path {
      font-family: var(--font-mono);
      font-size: 13px;
      font-weight: 500;
      color: var(--ink);
      flex: 1;
    }

    .api-desc-short {
      font-family: var(--font-mono);
      font-size: 11px;
      color: var(--text-dim);
    }

    .api-auth {
      font-family: var(--font-mono);
      font-size: 10px;
      font-weight: 700;
      color: var(--orange);
      background: rgba(249,115,22,0.1);
      padding: 3px 8px;
      border-radius: var(--radius);
      border: 1px solid rgba(249,115,22,0.3);
      text-transform: uppercase;
    }

    .api-body {
      display: none;
      padding: 20px;
      background: var(--bg);
      border-top: 1px solid var(--border);
    }

    .api-body.visible { display: block; }

    .api-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.6;
    }

    .api-label {
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 700;
      color: var(--red);
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 8px;
      margin-top: 16px;
    }

    /* ── Code Block ── */
    .code-block {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 16px;
      font-family: var(--font-mono);
      font-size: 12px;
      line-height: 1.6;
      color: var(--text);
      overflow-x: auto;
      white-space: pre;
      margin-bottom: 12px;
      position: relative;
    }

    .code-block .comment { color: var(--text-dim); }
    .code-block .string { color: var(--green); }
    .code-block .keyword { color: var(--red); }
    .code-block .url { color: var(--yellow); }

    /* ── Tab Group ── */
    .tab-group {
      display: flex;
      gap: 4px;
      margin-bottom: 0;
    }

    .tab-btn {
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 700;
      padding: 6px 14px;
      border: var(--border-w) solid var(--border);
      border-bottom: none;
      border-radius: var(--radius) var(--radius) 0 0;
      background: var(--surface);
      color: var(--text-dim);
      cursor: pointer;
      transition: var(--transition);
      text-transform: uppercase;
    }

    .tab-btn.active {
      background: var(--surface-raised);
      color: var(--red);
      border-color: var(--border-strong);
    }

    .tab-content { display: none; }
    .tab-content.visible { display: block; }

    /* ── Section Title ── */
    .section-label {
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 700;
      color: var(--red);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 12px;
      padding-bottom: 8px;
      border-bottom: 1px solid var(--border);
    }

    /* ── Footer ── */
    .site-footer {
      margin-top: 48px;
      text-align: center;
      padding: 28px 16px 36px;
      border-top: var(--border-w, 2px) solid var(--border);
      width: 100%;
    }

    .footer-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 12px;
    }

    .footer-links a {
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--text-muted);
      text-decoration: none;
      letter-spacing: 0.5px;
      transition: color 0.2s ease, transform 0.2s ease;
      display: inline-block;
    }

    .footer-links a:hover {
      color: var(--red);
      transform: translateY(-1px);
    }

    .footer-links .dot {
      color: var(--text-dim);
      font-size: 8px;
      user-select: none;
    }

    .footer-copy {
      font-family: var(--font-mono);
      font-size: 11px;
      color: var(--text-dim);
      margin: 0;
      letter-spacing: 0.3px;
    }

    @media (max-width: 640px) {
      .topbar { padding: 0 12px; height: 56px; }
      .topbar-inner { gap: 6px; }
      .logo-icon { width: 32px; height: 32px; }
      .logo-text { font-size: 18px; }
      .topbar-actions { gap: 6px; }
      .back-btn { padding: 0 8px !important; height: 32px !important; font-size: 11px !important; letter-spacing: 0.2px; white-space: nowrap !important; }
      .lang-group { height: 32px !important; }
      .lang-btn { padding: 0 6px; font-size: 10px; }
      .page-title { font-size: 24px; }
      .api-header { flex-wrap: wrap; gap: 8px; }
      .api-desc-short { display: none; }
    }

    @media (max-width: 440px) {
      .topbar-actions { gap: 4px; }
      .back-btn { padding: 0 6px !important; height: 32px !important; font-size: 10.5px !important; white-space: nowrap !important; }
      .lang-group { height: 32px !important; }
      .lang-btn { padding: 0 5px; font-size: 9.5px; white-space: nowrap !important; }
    }