/* ── Reset & Variables ──────────────────────────────────── */
      *,
      *::before,
      *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
      }

      :root {
        --bg: #0d1117;
        --bg-card: #161b22;
        --bg-card2: #1c2128;
        --border: #30363d;
        --border-dim: #21262d;
        --green: #3fb950;
        --green-dim: #238636;
        --cyan: #58a6ff;
        --cyan-dim: #1f6feb;
        --red: #f85149;
        --orange: #e3b341;
        --text: #e6edf3;
        --text-muted: #8b949e;
        --text-dim: #6e7681;
        --mono:
          "SF Mono", "Fira Code", "JetBrains Mono", "Cascadia Code", "Consolas",
          monospace;
        --sans: -apple-system, "Segoe UI", "Helvetica Neue", sans-serif;
        --radius: 8px;
        --radius-lg: 12px;
      }

      html {
        scroll-behavior: smooth;
      }

      body {
        background: var(--bg);
        color: var(--text);
        font-family: var(--sans);
        font-size: 16px;
        line-height: 1.6;
        overflow-x: hidden;
      }

      /* ── Noise overlay ──────────────────────────────────────── */
      body::before {
        content: "";
        position: fixed;
        inset: 0;
        pointer-events: none;
        z-index: 0;
        opacity: 0.03;
        background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
      }

      /* ── Nav ────────────────────────────────────────────────── */
      nav {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(13, 17, 23, 0.88);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border-dim);
        padding: 0 24px;
      }

      .nav-inner {
        max-width: 1100px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        gap: 32px;
        height: 56px;
      }

      .nav-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-family: var(--mono);
        font-size: 14px;
        font-weight: 600;
        color: var(--green);
        text-decoration: none;
        white-space: nowrap;
        flex-shrink: 0;
      }

      .nav-logo svg {
        width: 28px;
        height: 28px;
        flex-shrink: 0;
      }
      .nav-logo span {
        color: var(--text-muted);
      }

      .nav-links {
        display: flex;
        gap: 4px;
        list-style: none;
        margin-left: auto;
        overflow-x: auto;
        scrollbar-width: none;
      }
      .nav-links::-webkit-scrollbar {
        display: none;
      }

      .nav-links a {
        color: var(--text-muted);
        text-decoration: none;
        font-size: 13px;
        padding: 6px 12px;
        border-radius: var(--radius);
        transition:
          color 0.15s,
          background 0.15s;
        white-space: nowrap;
      }

      .nav-links a:hover {
        color: var(--text);
        background: var(--bg-card);
      }
      .nav-links a.active {
        color: var(--cyan);
      }

      .nav-gh {
        display: flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        color: var(--text-muted);
        text-decoration: none;
        padding: 6px 12px;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        flex-shrink: 0;
        transition:
          color 0.15s,
          border-color 0.15s;
      }
      .nav-gh:hover {
        color: var(--text);
        border-color: var(--text-muted);
      }
      .nav-gh svg {
        width: 16px;
        height: 16px;
        fill: currentColor;
      }

      /* ── Layout helpers ─────────────────────────────────────── */
      .container {
        max-width: 1100px;
        margin: 0 auto;
        padding: 0 24px;
      }

      section {
        padding: 96px 0;
        position: relative;
      }

      .section-label {
        font-family: var(--mono);
        font-size: 11px;
        font-weight: 600;
        letter-spacing: 0.12em;
        text-transform: uppercase;
        color: var(--green);
        margin-bottom: 12px;
      }

      h2.section-title {
        font-size: clamp(26px, 4vw, 40px);
        font-weight: 700;
        color: var(--text);
        line-height: 1.2;
        margin-bottom: 16px;
      }

      .section-sub {
        font-size: 17px;
        color: var(--text-muted);
        max-width: 560px;
        margin-bottom: 56px;
      }

      /* ── Scroll reveal ──────────────────────────────────────── */
      .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition:
          opacity 0.6s ease,
          transform 0.6s ease;
      }
      .reveal.visible {
        opacity: 1;
        transform: translateY(0);
      }
      .reveal-delay-1 {
        transition-delay: 0.1s;
      }
      .reveal-delay-2 {
        transition-delay: 0.2s;
      }
      .reveal-delay-3 {
        transition-delay: 0.3s;
      }
      .reveal-delay-4 {
        transition-delay: 0.4s;
      }
      .reveal-delay-5 {
        transition-delay: 0.5s;
      }

      /* ── Hero ───────────────────────────────────────────────── */
      #hero {
        padding: 100px 0 80px;
      }

      .hero-layout {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 64px;
        align-items: center;
      }

      .hero-left {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
      }

      .hero-right {
        display: flex;
        align-items: center;
        justify-content: flex-end;
      }

      @media (max-width: 860px) {
        .hero-layout {
          grid-template-columns: 1fr;
          gap: 48px;
        }
        .hero-left {
          align-items: center;
          text-align: center;
        }
        .hero-right {
          justify-content: center;
        }
      }

      .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-family: var(--mono);
        font-size: 12px;
        color: var(--green);
        background: rgba(63, 185, 80, 0.08);
        border: 1px solid rgba(63, 185, 80, 0.25);
        border-radius: 20px;
        padding: 5px 14px;
        margin-bottom: 32px;
      }

      .hero-badge-dot {
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--green);
        animation: pulse-dot 2s ease-in-out infinite;
      }

      @keyframes pulse-dot {
        0%,
        100% {
          opacity: 1;
          transform: scale(1);
        }
        50% {
          opacity: 0.5;
          transform: scale(0.75);
        }
      }

      h1.hero-headline {
        font-size: clamp(24px, 4vw, 44px);
        font-weight: 800;
        line-height: 1.1;
        letter-spacing: -0.02em;
        color: var(--text);
        margin-bottom: 24px;
        max-width: 820px;
        margin-left: auto;
        margin-right: auto;
      }

      h1.hero-headline .accent-claude {
        color: #d97757;
      } /* Anthropic / Claude Code brand coral */
      h1.hero-headline .accent-codex {
        color: #58a6ff;
      } /* Codex CLI brand blue */

      .hero-sub {
        font-size: clamp(16px, 2.5vw, 20px);
        color: var(--text-muted);
        max-width: 600px;
        margin: 0 auto 40px;
        line-height: 1.6;
      }

      .hero-actions {
        display: flex;
        gap: 12px;
        justify-content: center;
        flex-wrap: wrap;
        margin-bottom: 56px;
      }

      .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--green);
        color: #0d1117;
        font-weight: 700;
        font-size: 15px;
        padding: 12px 24px;
        border-radius: var(--radius);
        text-decoration: none;
        border: none;
        cursor: pointer;
        transition:
          background 0.15s,
          transform 0.1s;
      }
      .btn-primary:hover {
        background: #46c65c;
        transform: translateY(-1px);
      }
      .btn-primary:active {
        transform: translateY(0);
      }

      .btn-secondary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: transparent;
        color: var(--text);
        font-weight: 600;
        font-size: 15px;
        padding: 12px 24px;
        border-radius: var(--radius);
        text-decoration: none;
        border: 1px solid var(--border);
        transition:
          border-color 0.15s,
          background 0.15s;
      }
      .btn-secondary:hover {
        border-color: var(--text-muted);
        background: var(--bg-card);
      }

      .trust-bar {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        flex-wrap: wrap;
        font-family: var(--mono);
        font-size: 12px;
        color: var(--text-dim);
      }

      .trust-bar span {
        color: var(--text-muted);
      }
      .trust-sep {
        color: var(--border);
      }

      /* ── Terminal preview ───────────────────────────────────── */
      .hero-terminal {
        width: 100%;
        max-width: 520px;
        margin: 0;
        background: #010409;
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow:
          0 0 60px rgba(63, 185, 80, 0.08),
          0 24px 64px rgba(0, 0, 0, 0.6);
      }

      .term-titlebar {
        background: var(--bg-card2);
        border-bottom: 1px solid var(--border-dim);
        padding: 10px 16px;
        display: flex;
        align-items: center;
        gap: 12px;
      }

      .term-dots {
        display: flex;
        gap: 6px;
      }
      .term-dot {
        width: 12px;
        height: 12px;
        border-radius: 50%;
      }
      .term-dot.red {
        background: #ff5f56;
      }
      .term-dot.yellow {
        background: #ffbd2e;
      }
      .term-dot.green {
        background: #27c93f;
      }

      .term-title {
        flex: 1;
        text-align: center;
        font-family: var(--mono);
        font-size: 12px;
        color: var(--text-dim);
      }

      .term-body {
        padding: 24px;
        font-family: var(--mono);
        font-size: 13px;
        line-height: 1.8;
      }

      .term-line {
        display: flex;
        align-items: baseline;
        gap: 8px;
      }
      .term-ps1 {
        color: var(--green);
        white-space: nowrap;
      }
      .term-cmd {
        color: var(--text);
      }
      .term-out {
        color: var(--text-muted);
        padding-left: 20px;
      }
      .term-out.dim {
        color: var(--text-dim);
      }
      .term-out.cyan {
        color: var(--cyan);
      }
      .term-out.green {
        color: var(--green);
      }
      .term-out.orange {
        color: var(--orange);
      }

      .cursor {
        display: inline-block;
        width: 8px;
        height: 14px;
        background: var(--green);
        vertical-align: middle;
        margin-left: 2px;
        animation: blink 1.1s step-end infinite;
      }

      @keyframes blink {
        0%,
        100% {
          opacity: 1;
        }
        50% {
          opacity: 0;
        }
      }

      /* ── Divider ────────────────────────────────────────────── */
      .section-divider {
        border: none;
        border-top: 1px solid var(--border-dim);
        margin: 0;
      }

      /* ── Problem cards ──────────────────────────────────────── */
      #problem {
        background: var(--bg);
      }

      .problem-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
      }

      .problem-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 28px;
        position: relative;
        overflow: hidden;
      }

      .problem-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--red), transparent);
        opacity: 0.6;
      }

      .problem-card:hover {
        border-color: rgba(248, 81, 73, 0.4);
      }

      .problem-icon {
        width: 40px;
        height: 40px;
        background: rgba(248, 81, 73, 0.1);
        border: 1px solid rgba(248, 81, 73, 0.2);
        border-radius: var(--radius);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        margin-bottom: 16px;
      }

      .problem-card h3 {
        font-size: 16px;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 8px;
        line-height: 1.3;
      }

      .problem-card p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.6;
      }

      /* ── Feature cards ──────────────────────────────────────── */
      #features {
        background: var(--bg);
      }

      .features-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 16px;
      }

      .feature-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 28px;
        transition:
          border-color 0.2s,
          box-shadow 0.2s,
          transform 0.2s;
      }

      .feature-card:hover {
        border-color: rgba(88, 166, 255, 0.35);
        box-shadow: 0 0 24px rgba(88, 166, 255, 0.07);
        transform: translateY(-2px);
      }

      .feature-icon {
        width: 44px;
        height: 44px;
        background: rgba(88, 166, 255, 0.08);
        border: 1px solid rgba(88, 166, 255, 0.2);
        border-radius: var(--radius);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        margin-bottom: 16px;
      }

      .feature-card h3 {
        font-size: 15px;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 8px;
      }

      .feature-card p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.6;
      }

      .feature-card code {
        font-family: var(--mono);
        font-size: 12px;
        background: rgba(255, 255, 255, 0.06);
        padding: 2px 5px;
        border-radius: 4px;
        color: var(--cyan);
      }

      /* ── How it works ───────────────────────────────────────── */
      #how-it-works {
        background: var(--bg-card);
      }
      #how-it-works .section-divider-inner {
        border: none;
        border-top: 1px solid var(--border-dim);
      }

      .steps-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 0;
        position: relative;
      }

      .step {
        padding: 32px;
        display: flex;
        flex-direction: column;
        gap: 16px;
        position: relative;
      }

      .step:not(:last-child)::after {
        content: "";
        position: absolute;
        right: 0;
        top: 40px;
        bottom: 40px;
        width: 1px;
        background: var(--border-dim);
      }

      @media (max-width: 700px) {
        .step:not(:last-child)::after {
          display: none;
        }
        .steps-grid {
          gap: 0;
        }
        .step {
          border-bottom: 1px solid var(--border-dim);
        }
        .step:last-child {
          border-bottom: none;
        }
      }

      .step-number {
        font-family: var(--mono);
        font-size: 40px;
        font-weight: 800;
        color: rgba(63, 185, 80, 0.15);
        line-height: 1;
        margin-bottom: 4px;
      }

      .step h3 {
        font-size: 18px;
        font-weight: 700;
        color: var(--text);
      }

      .step p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.6;
      }

      /* ── Install ────────────────────────────────────────────── */
      #install {
        background: var(--bg);
      }

      .install-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        max-width: 720px;
        margin: 0 auto 24px;
      }

      .install-header {
        background: var(--bg-card2);
        border-bottom: 1px solid var(--border-dim);
        padding: 10px 16px 10px 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
      }

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

      .copy-btn {
        display: flex;
        align-items: center;
        gap: 6px;
        background: none;
        border: 1px solid var(--border);
        color: var(--text-muted);
        font-family: var(--mono);
        font-size: 11px;
        padding: 4px 10px;
        border-radius: 6px;
        cursor: pointer;
        transition:
          color 0.15s,
          border-color 0.15s,
          background 0.15s;
      }

      .copy-btn:hover {
        color: var(--text);
        border-color: var(--text-muted);
        background: rgba(255, 255, 255, 0.04);
      }
      .copy-btn.copied {
        color: var(--green);
        border-color: var(--green-dim);
      }

      .copy-btn svg {
        width: 13px;
        height: 13px;
        fill: none;
        stroke: currentColor;
        stroke-width: 1.8;
      }

      .install-code {
        padding: 20px 24px;
        font-family: var(--mono);
        font-size: 13px;
        line-height: 1.6;
        overflow-x: auto;
        background: #010409;
      }

      .install-code .ps {
        color: var(--green);
        user-select: none;
      }
      .install-code .cmd {
        color: var(--text);
      }

      .install-alt {
        max-width: 720px;
        margin: 0 auto;
      }

      .install-alt-label {
        font-size: 13px;
        color: var(--text-dim);
        text-align: center;
        margin-bottom: 12px;
      }

      .install-alt-label strong {
        color: var(--text-muted);
      }

      .install-mini {
        background: #010409;
        border: 1px solid var(--border-dim);
        border-radius: var(--radius);
        padding: 14px 20px;
        font-family: var(--mono);
        font-size: 12px;
        color: var(--text-muted);
        overflow-x: auto;
      }

      /* ── Proof pills ────────────────────────────────────────── */
      .proof-grid {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 48px;
        justify-content: center;
        max-width: 720px;
        margin-left: auto;
        margin-right: auto;
      }

      .proof-pill {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 7px 14px;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: 20px;
        font-family: var(--mono);
        font-size: 12px;
        color: var(--text-muted);
      }

      .proof-pill .check {
        color: var(--green);
      }
      .proof-pill .warn {
        color: var(--orange);
      }
      .proof-pill .open {
        color: var(--text-dim);
      }

      /* ── FAQ ────────────────────────────────────────────────── */
      #faq {
        background: var(--bg);
      }

      .faq-list {
        max-width: 720px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 2px;
      }

      .faq-item {
        border: 1px solid var(--border-dim);
        border-radius: var(--radius);
        overflow: hidden;
      }

      .faq-question {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 18px 20px;
        background: var(--bg-card);
        border: none;
        cursor: pointer;
        text-align: left;
        color: var(--text);
        font-size: 15px;
        font-weight: 600;
        font-family: inherit;
        transition: background 0.15s;
      }

      .faq-question:hover {
        background: var(--bg-card2);
      }

      .faq-chevron {
        width: 16px;
        height: 16px;
        flex-shrink: 0;
        transition: transform 0.25s ease;
        color: var(--text-muted);
      }

      .faq-chevron svg {
        width: 100%;
        height: 100%;
        stroke: currentColor;
        fill: none;
        stroke-width: 2;
      }

      .faq-item.open .faq-chevron {
        transform: rotate(180deg);
      }

      .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition:
          max-height 0.3s ease,
          padding 0.3s ease;
        background: var(--bg-card);
      }

      .faq-item.open .faq-answer {
        max-height: 300px;
      }

      .faq-answer-inner {
        padding: 0 20px 20px;
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        border-top: 1px solid var(--border-dim);
        padding-top: 16px;
      }

      .faq-answer-inner code {
        font-family: var(--mono);
        font-size: 12px;
        background: rgba(255, 255, 255, 0.06);
        padding: 2px 5px;
        border-radius: 4px;
        color: var(--cyan);
      }

      /* ── Model Guide Table ──────────────────────────────────── */
      #model-guide {
        background: var(--bg);
      }

      .model-guide-intro {
        font-size: 15px;
        color: var(--text-muted);
        max-width: 720px;
        margin: 0 auto 40px;
        text-align: center;
        line-height: 1.7;
      }

      .model-guide-intro code {
        font-family: var(--mono);
        font-size: 13px;
        background: rgba(255, 255, 255, 0.06);
        padding: 2px 6px;
        border-radius: 4px;
        color: var(--cyan);
      }

      .table-wrapper {
        overflow-x: auto;
      }

      @media (max-width: 768px) {
        .table-wrapper {
          overflow-x: visible;
        }
      }

      .sr-only {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border-width: 0;
      }

      .model-guide-table {
        width: 100%;
        max-width: 1000px;
        margin: 0 auto;
        border-collapse: collapse;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
      }

      .model-guide-table thead {
        background: var(--bg-card2);
        position: sticky;
        top: 56px;
        z-index: 10;
      }

      .model-guide-table th {
        padding: 16px 20px;
        text-align: left;
        font-size: 13px;
        font-weight: 700;
        color: var(--text);
        border-bottom: 1px solid var(--border);
        font-family: var(--mono);
        text-transform: uppercase;
        letter-spacing: 0.05em;
      }

      .model-guide-table td {
        padding: 18px 20px;
        font-size: 14px;
        color: var(--text-muted);
        border-bottom: 1px solid var(--border-dim);
        line-height: 1.6;
      }

      .model-guide-table tbody tr {
        transition: background 0.15s;
      }

      .model-guide-table tbody tr:hover {
        background: rgba(88, 166, 255, 0.04);
      }

      .model-guide-table tbody tr:last-child td {
        border-bottom: none;
      }

      .model-guide-table td:first-child {
        font-weight: 700;
        color: var(--green);
        font-family: var(--mono);
        font-size: 15px;
        width: 25%;
        vertical-align: top;
      }

      .model-guide-table td:last-child {
        width: 75%;
      }

      .hw-examples {
        display: block;
        font-size: 12px;
        color: var(--text-muted);
        font-weight: 400;
        font-family: var(--sans);
        margin-top: 6px;
        opacity: 0.7;
      }

      .model-guide-table td strong {
        color: var(--text);
        font-weight: 600;
      }

      .model-guide-table td code {
        font-family: var(--mono);
        font-size: 12px;
        background: rgba(255, 255, 255, 0.06);
        padding: 2px 5px;
        border-radius: 4px;
        color: var(--cyan);
      }

      /* Mobile: Card layout */
      @media (max-width: 768px) {
        .model-guide-table {
          display: block;
          border: none;
          background: transparent;
        }

        .model-guide-table thead {
          display: none;
        }

        .model-guide-table tbody {
          display: grid;
          gap: 16px;
        }

        .model-guide-table tr {
          display: grid;
          grid-template-columns: 1fr;
          gap: 12px;
          background: var(--bg-card);
          border: 1px solid var(--border);
          border-radius: var(--radius-lg);
          padding: 20px;
        }

        .model-guide-table tr:hover {
          background: var(--bg-card);
          border-color: rgba(88, 166, 255, 0.35);
        }

        .model-guide-table td {
          display: grid;
          grid-template-columns: 120px 1fr;
          gap: 12px;
          padding: 0;
          border: none;
          align-items: start;
        }

        .model-guide-table td::before {
          content: attr(data-label);
          font-weight: 700;
          color: var(--text-dim);
          font-size: 12px;
          text-transform: uppercase;
          letter-spacing: 0.05em;
          font-family: var(--mono);
        }

        .model-guide-table td:first-child {
          grid-column: 1 / -1;
          font-size: 16px;
          margin-bottom: 8px;
          padding-bottom: 12px;
          border-bottom: 1px solid var(--border-dim);
        }

        .model-guide-table td:first-child::before {
          display: none;
        }
      }

      /* ── Manual Selection Guide ─────────────────────────────── */
      .manual-guide {
        max-width: 900px;
        margin: 0 auto;
        padding-top: 60px;
      }

      .manual-guide-title {
        font-size: 28px;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 16px;
        text-align: center;
      }

      .manual-guide-intro {
        font-size: 15px;
        color: var(--text-muted);
        text-align: center;
        margin-bottom: 40px;
        line-height: 1.7;
      }

      .manual-guide-intro code {
        font-family: var(--mono);
        font-size: 13px;
        background: rgba(255, 255, 255, 0.06);
        padding: 2px 6px;
        border-radius: 4px;
        color: var(--cyan);
      }

      .manual-steps {
        display: flex;
        flex-direction: column;
        gap: 24px;
      }

      .manual-step {
        display: flex;
        gap: 20px;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 24px;
        transition: border-color 0.2s;
      }

      .manual-step:hover {
        border-color: rgba(88, 166, 255, 0.35);
      }

      .step-number {
        flex-shrink: 0;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--green);
        color: var(--bg);
        font-weight: 700;
        font-size: 18px;
        border-radius: 50%;
        font-family: var(--mono);
      }

      .step-content {
        flex: 1;
      }

      .step-content h4 {
        font-size: 18px;
        font-weight: 600;
        color: var(--text);
        margin-bottom: 12px;
      }

      .step-content p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.6;
        margin-bottom: 12px;
      }

      .step-content ul {
        list-style: none;
        padding: 0;
        margin: 12px 0;
      }

      .step-content ul li {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        padding-left: 20px;
        position: relative;
        margin-bottom: 8px;
      }

      .step-content ul li::before {
        content: "→";
        position: absolute;
        left: 0;
        color: var(--green);
        font-weight: 700;
      }

      .step-content ul li strong {
        color: var(--text);
        font-weight: 600;
      }

      .step-example {
        background: rgba(255, 255, 255, 0.03);
        border-left: 3px solid var(--cyan);
        padding: 10px 14px;
        font-size: 13px;
        color: var(--text-muted);
        border-radius: 4px;
        margin-top: 12px;
        font-family: var(--mono);
      }

      .step-example code {
        font-family: var(--mono);
        font-size: 12px;
        background: rgba(255, 255, 255, 0.06);
        padding: 2px 5px;
        border-radius: 3px;
        color: var(--cyan);
      }

      .manual-guide-footer {
        margin-top: 32px;
        padding: 20px 24px;
        background: rgba(88, 166, 255, 0.08);
        border: 1px solid rgba(88, 166, 255, 0.2);
        border-radius: var(--radius-lg);
      }

      .manual-guide-footer p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        margin: 0;
      }

      .manual-guide-footer strong {
        color: var(--text);
        font-weight: 600;
      }

      @media (max-width: 768px) {
        .manual-step {
          flex-direction: column;
          gap: 16px;
        }

        .step-number {
          width: 36px;
          height: 36px;
          font-size: 16px;
        }
      }

      /* ── Final CTA ──────────────────────────────────────────── */
      #cta {
        background: var(--bg-card);
        text-align: center;
        padding: 120px 0;
      }

      #cta h2 {
        font-size: clamp(28px, 5vw, 52px);
        font-weight: 800;
        letter-spacing: -0.02em;
        margin-bottom: 16px;
      }

      #cta .sub {
        font-size: 17px;
        color: var(--text-muted);
        margin-bottom: 40px;
      }

      #cta .cta-actions {
        display: flex;
        gap: 12px;
        justify-content: center;
        flex-wrap: wrap;
      }

      /* ── Footer ─────────────────────────────────────────────── */
      footer {
        background: var(--bg);
        border-top: 1px solid var(--border-dim);
        padding: 32px 24px;
      }

      .footer-inner {
        max-width: 1100px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 16px;
      }

      .footer-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-family: var(--mono);
        font-size: 13px;
        color: var(--text-muted);
      }

      .footer-logo svg {
        width: 24px;
        height: 24px;
        flex-shrink: 0;
      }
      .footer-logo strong {
        color: var(--green);
      }

      .footer-links {
        display: flex;
        gap: 20px;
        list-style: none;
      }

      .footer-links a {
        font-size: 13px;
        color: var(--text-dim);
        text-decoration: none;
        transition: color 0.15s;
      }
      .footer-links a:hover {
        color: var(--text-muted);
      }

      .footer-right {
        font-size: 12px;
        color: var(--text-dim);
      }

      /* ── Responsive ─────────────────────────────────────────── */
      @media (max-width: 768px) {
        section {
          padding: 64px 0;
        }
        #hero {
          padding: 80px 0 64px;
        }

        .nav-links {
          display: none;
        }

        .step::after {
          display: none;
        }
      }

      @media (max-width: 560px) {
        /* Collapse logo suffix and use compact GH button so the nav never overflows */
        .nav-logo span {
          display: none;
        }
        .nav-gh {
          gap: 0;
          padding: 6px 10px;
        }
        .nav-gh-text {
          display: none;
        }
        nav {
          padding: 0 16px;
        }
      }

      @media (max-width: 480px) {
        .hero-actions {
          flex-direction: column;
          align-items: center;
        }
        .cta-actions {
          flex-direction: column;
          align-items: center;
        }
        .btn-primary,
        .btn-secondary {
          width: 100%;
          max-width: 280px;
          justify-content: center;
        }
      }

      /* ════════════════════════════════════════════════════════════
         TERMINAL BRUTALISM REDESIGN
         Sharp mono typography, ASCII glyphs, dense info layouts.
         Hero section remains untouched; everything else uses these.
         ════════════════════════════════════════════════════════════ */

      :root {
        --tb-rule: #232a33;
        --tb-rule-bright: #3a4350;
        --tb-bg-flat: #0b0e13;
        --tb-bg-deep: #060810;
        --tb-accent: #3fb950;
        --tb-accent-2: #58a6ff;
        --tb-warn: #e3b341;
        --tb-danger: #f85149;
      }

      /* Page chrome ──────────────────────────────────────────── */
      .tb-page {
        background:
          repeating-linear-gradient(
            to bottom,
            transparent 0,
            transparent 31px,
            rgba(255, 255, 255, 0.012) 31px,
            rgba(255, 255, 255, 0.012) 32px
          ),
          var(--bg);
      }

      .tb-section {
        padding: 80px 0;
        position: relative;
      }

      .tb-section + .tb-section {
        border-top: 1px solid var(--tb-rule);
      }

      /* Section frame: ASCII-style border block */
      .tb-frame-head {
        font-family: var(--mono);
        font-size: 12px;
        color: var(--text-dim);
        margin-bottom: 28px;
        display: flex;
        align-items: baseline;
        gap: 12px;
        flex-wrap: wrap;
        line-height: 1.5;
      }

      .tb-frame-head .glyph {
        color: var(--tb-accent);
        font-weight: 600;
      }

      .tb-frame-head .path {
        color: var(--text);
        font-weight: 600;
      }

      .tb-frame-head .meta {
        margin-left: auto;
        color: var(--text-dim);
      }

      .tb-eyebrow {
        font-family: var(--mono);
        font-size: 11px;
        font-weight: 600;
        letter-spacing: 0.18em;
        text-transform: uppercase;
        color: var(--tb-accent);
        display: inline-flex;
        align-items: center;
        gap: 10px;
      }

      .tb-eyebrow::before {
        content: ">";
        color: var(--tb-accent);
        font-weight: 700;
      }

      .tb-h2 {
        font-family: var(--mono);
        font-size: clamp(26px, 4vw, 40px);
        font-weight: 700;
        color: var(--text);
        line-height: 1.15;
        letter-spacing: -0.01em;
        margin: 14px 0 0;
      }

      .tb-h2 .ord {
        color: var(--tb-accent);
        font-weight: 800;
        margin-right: 12px;
      }

      .tb-h2 .accent {
        color: var(--tb-accent);
      }

      .tb-h2 + .tb-lede {
        margin-top: 16px;
      }

      .tb-lede {
        font-family: var(--sans);
        font-size: 16px;
        color: var(--text-muted);
        max-width: 640px;
        line-height: 1.7;
      }

      .tb-rule {
        border: 0;
        border-top: 1px dashed var(--tb-rule-bright);
        margin: 40px 0;
        opacity: 0.6;
      }

      .tb-rule-solid {
        border: 0;
        border-top: 1px solid var(--tb-rule);
      }

      .tb-header-row {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 24px;
        margin-bottom: 44px;
        flex-wrap: wrap;
      }

      .tb-header-row .tb-h2 {
        flex: 1;
        min-width: 280px;
      }

      .tb-header-row .tb-meta-side {
        font-family: var(--mono);
        font-size: 12px;
        color: var(--text-dim);
        text-align: right;
        line-height: 1.7;
      }

      /* Sub-page hero (small banner for non-landing pages) */
      .tb-page-hero {
        padding: 64px 0 48px;
        border-bottom: 1px solid var(--tb-rule);
        background: linear-gradient(180deg, rgba(63, 185, 80, 0.025), transparent 60%);
        position: relative;
      }

      .tb-page-hero::before,
      .tb-page-hero::after {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        height: 1px;
        background: var(--tb-rule);
      }
      .tb-page-hero::before { top: 0; }
      .tb-page-hero::after { display: none; }

      .tb-crumb {
        font-family: var(--mono);
        font-size: 12px;
        color: var(--text-dim);
        margin-bottom: 18px;
        display: flex;
        align-items: center;
        gap: 8px;
      }

      .tb-crumb a {
        color: var(--text-muted);
        text-decoration: none;
        transition: color 0.15s;
      }

      .tb-crumb a:hover { color: var(--tb-accent); }
      .tb-crumb .sep { color: var(--tb-rule-bright); }
      .tb-crumb .here { color: var(--tb-accent); }

      .tb-page-title {
        font-family: var(--mono);
        font-size: clamp(32px, 5vw, 52px);
        font-weight: 800;
        color: var(--text);
        line-height: 1.05;
        letter-spacing: -0.02em;
        margin-bottom: 18px;
      }

      .tb-page-title .accent { color: var(--tb-accent); }
      .tb-page-title .slash { color: var(--text-dim); font-weight: 400; }

      .tb-page-sub {
        font-size: 17px;
        color: var(--text-muted);
        max-width: 680px;
        line-height: 1.65;
      }

      .tb-page-stats {
        display: flex;
        gap: 0;
        margin-top: 28px;
        border: 1px solid var(--tb-rule);
        border-radius: 4px;
        overflow: hidden;
        max-width: 720px;
      }

      .tb-page-stats .stat {
        flex: 1;
        padding: 14px 18px;
        font-family: var(--mono);
        font-size: 12px;
        background: rgba(255, 255, 255, 0.015);
      }

      .tb-page-stats .stat + .stat {
        border-left: 1px solid var(--tb-rule);
      }

      .tb-page-stats .stat-label {
        color: var(--text-dim);
        font-size: 10px;
        letter-spacing: 0.12em;
        text-transform: uppercase;
        margin-bottom: 4px;
      }

      .tb-page-stats .stat-value {
        color: var(--text);
        font-weight: 600;
        font-size: 14px;
      }

      .tb-page-stats .stat-value .dot {
        display: inline-block;
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: var(--tb-accent);
        margin-right: 6px;
        animation: pulse-dot 2s ease-in-out infinite;
        vertical-align: middle;
      }

      /* Layout: sidebar + content for docs/guides ─────────── */
      .tb-doc-layout {
        display: grid;
        grid-template-columns: 220px 1fr;
        gap: 56px;
        align-items: start;
      }

      .tb-sidebar {
        position: sticky;
        top: 80px;
        font-family: var(--mono);
        font-size: 13px;
        border-left: 1px solid var(--tb-rule);
        padding: 4px 0 4px 18px;
      }

      .tb-sidebar-title {
        font-size: 10px;
        font-weight: 700;
        letter-spacing: 0.14em;
        text-transform: uppercase;
        color: var(--text-dim);
        margin-bottom: 14px;
      }

      .tb-sidebar-list {
        list-style: none;
        padding: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 2px;
      }

      .tb-sidebar-list a {
        display: flex;
        align-items: center;
        gap: 8px;
        text-decoration: none;
        color: var(--text-muted);
        padding: 6px 10px 6px 12px;
        border-radius: 3px;
        transition:
          color 0.15s,
          background 0.15s,
          border-left-color 0.15s;
        position: relative;
        margin-left: -19px;
        padding-left: 19px;
        border-left: 1px solid transparent;
      }

      .tb-sidebar-list a::before {
        content: "·";
        color: var(--text-dim);
        font-weight: 700;
        width: 10px;
        display: inline-block;
      }

      .tb-sidebar-list a:hover {
        color: var(--text);
        background: rgba(255, 255, 255, 0.025);
      }

      .tb-sidebar-list a.active,
      .tb-sidebar-list a[aria-current="true"] {
        color: var(--tb-accent);
        border-left-color: var(--tb-accent);
        background: rgba(63, 185, 80, 0.04);
      }

      .tb-sidebar-list a.active::before {
        content: "▸";
        color: var(--tb-accent);
      }

      @media (max-width: 900px) {
        .tb-doc-layout {
          grid-template-columns: 1fr;
          gap: 32px;
        }
        .tb-sidebar {
          position: static;
          border-left: 0;
          border-bottom: 1px solid var(--tb-rule);
          padding: 0 0 16px;
        }
        .tb-sidebar-list {
          flex-direction: row;
          flex-wrap: wrap;
          gap: 4px;
        }
        .tb-sidebar-list a {
          margin-left: 0;
          padding-left: 10px;
          border-left: 0;
          border-bottom: 2px solid transparent;
          border-radius: 0;
        }
        .tb-sidebar-list a.active {
          border-left-color: transparent;
          border-bottom-color: var(--tb-accent);
        }
      }

      /* Numbered ordinal block (problem/feature cards) ─────── */
      .tb-card {
        background: var(--tb-bg-flat);
        border: 1px solid var(--tb-rule);
        border-radius: 4px;
        padding: 28px 28px 26px;
        position: relative;
        transition:
          border-color 0.2s,
          background 0.2s,
          transform 0.2s;
      }

      .tb-card:hover {
        border-color: var(--tb-rule-bright);
        background: var(--bg-card);
        transform: translateY(-2px);
      }

      .tb-card .tb-card-ord {
        font-family: var(--mono);
        font-size: 11px;
        font-weight: 700;
        letter-spacing: 0.12em;
        color: var(--tb-accent);
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 18px;
      }

      .tb-card .tb-card-ord::after {
        content: "";
        flex: 1;
        border-top: 1px dashed var(--tb-rule-bright);
        margin-left: 4px;
      }

      .tb-card h3 {
        font-family: var(--mono);
        font-size: 17px;
        font-weight: 700;
        color: var(--text);
        line-height: 1.3;
        margin-bottom: 10px;
        letter-spacing: -0.005em;
      }

      .tb-card p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.65;
      }

      .tb-card.danger .tb-card-ord { color: var(--tb-danger); }
      .tb-card.danger:hover { border-color: rgba(248, 81, 73, 0.4); }

      .tb-card code {
        font-family: var(--mono);
        font-size: 12px;
        background: rgba(255, 255, 255, 0.06);
        padding: 1px 5px;
        border-radius: 3px;
        color: var(--tb-accent-2);
      }

      .tb-grid {
        display: grid;
        gap: 16px;
      }
      .tb-grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
      .tb-grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

      /* Steps: numbered horizontal rail ─────────────────────── */
      .tb-steps {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 0;
        border: 1px solid var(--tb-rule);
        border-radius: 4px;
        overflow: hidden;
        background: var(--tb-bg-flat);
      }

      .tb-step {
        padding: 28px 28px;
        position: relative;
      }

      .tb-step + .tb-step {
        border-left: 1px solid var(--tb-rule);
      }

      @media (max-width: 720px) {
        .tb-step + .tb-step {
          border-left: 0;
          border-top: 1px solid var(--tb-rule);
        }
      }

      .tb-step .ord {
        font-family: var(--mono);
        font-size: 11px;
        letter-spacing: 0.18em;
        color: var(--text-dim);
        margin-bottom: 14px;
        display: flex;
        align-items: center;
        gap: 8px;
      }

      .tb-step .ord .num {
        color: var(--tb-accent);
        font-weight: 800;
        font-size: 14px;
      }

      .tb-step h3 {
        font-family: var(--mono);
        font-size: 18px;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 8px;
      }

      .tb-step p {
        font-size: 13.5px;
        color: var(--text-muted);
        line-height: 1.65;
      }

      .tb-step code {
        font-family: var(--mono);
        font-size: 12px;
        background: rgba(255, 255, 255, 0.06);
        padding: 1px 5px;
        border-radius: 3px;
        color: var(--tb-accent-2);
      }

      /* Command listing rows ────────────────────────────────── */
      .tb-cmd-list {
        border: 1px solid var(--tb-rule);
        border-radius: 4px;
        overflow: hidden;
        background: var(--tb-bg-flat);
      }

      .tb-cmd {
        display: grid;
        grid-template-columns: 200px 1fr;
        gap: 24px;
        padding: 22px 24px;
        align-items: start;
      }

      .tb-cmd + .tb-cmd {
        border-top: 1px solid var(--tb-rule);
      }

      .tb-cmd:hover {
        background: rgba(255, 255, 255, 0.012);
      }

      .tb-cmd-name {
        font-family: var(--mono);
        font-size: 14px;
        font-weight: 700;
        color: var(--tb-accent);
        display: flex;
        align-items: center;
        gap: 8px;
      }

      .tb-cmd-name::before {
        content: "$";
        color: var(--text-dim);
        font-weight: 400;
      }

      .tb-cmd-desc {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.65;
      }

      .tb-cmd-desc strong {
        color: var(--text);
        font-weight: 600;
      }

      .tb-cmd-desc code {
        font-family: var(--mono);
        font-size: 12px;
        background: rgba(255, 255, 255, 0.06);
        padding: 1px 5px;
        border-radius: 3px;
        color: var(--tb-accent-2);
      }

      .tb-cmd-flags {
        margin-top: 12px;
        padding: 12px 14px;
        background: var(--tb-bg-deep);
        border-left: 2px solid var(--tb-accent);
        border-radius: 2px;
        font-family: var(--mono);
        font-size: 12px;
        line-height: 1.8;
      }

      .tb-cmd-flags-title {
        color: var(--text-dim);
        font-size: 10px;
        letter-spacing: 0.14em;
        text-transform: uppercase;
        margin-bottom: 6px;
      }

      .tb-cmd-flags code {
        background: transparent;
        padding: 0;
        color: var(--tb-accent-2);
      }

      @media (max-width: 640px) {
        .tb-cmd {
          grid-template-columns: 1fr;
          gap: 10px;
        }
      }

      /* Definition list (config keys, env vars) ─────────────── */
      .tb-dl {
        border: 1px solid var(--tb-rule);
        border-radius: 4px;
        overflow: hidden;
        background: var(--tb-bg-flat);
      }

      .tb-dl-row {
        display: grid;
        grid-template-columns: 280px 1fr;
        gap: 20px;
        padding: 16px 22px;
        align-items: baseline;
      }

      .tb-dl-row + .tb-dl-row {
        border-top: 1px solid var(--tb-rule);
      }

      .tb-dl-key {
        font-family: var(--mono);
        font-size: 13px;
        font-weight: 600;
        color: var(--tb-accent-2);
      }

      .tb-dl-val {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.6;
      }

      .tb-dl-val code {
        font-family: var(--mono);
        font-size: 12px;
        background: rgba(255, 255, 255, 0.06);
        padding: 1px 5px;
        border-radius: 3px;
        color: var(--text);
      }

      @media (max-width: 640px) {
        .tb-dl-row {
          grid-template-columns: 1fr;
          gap: 6px;
        }
      }

      /* Install boxes ───────────────────────────────────────── */
      .tb-install-stack {
        display: grid;
        gap: 12px;
        max-width: 760px;
      }

      .tb-install {
        background: var(--tb-bg-deep);
        border: 1px solid var(--tb-rule);
        border-radius: 4px;
        overflow: hidden;
      }

      .tb-install-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        background: var(--tb-bg-flat);
        border-bottom: 1px solid var(--tb-rule);
        padding: 9px 16px;
        font-family: var(--mono);
        font-size: 12px;
        color: var(--text-dim);
      }

      .tb-install-head .left {
        display: flex;
        align-items: center;
        gap: 10px;
      }

      .tb-install-head .ord {
        background: var(--tb-accent);
        color: #0d1117;
        font-weight: 700;
        padding: 1px 7px;
        border-radius: 2px;
        font-size: 10px;
        letter-spacing: 0.06em;
      }

      .tb-install-head .label {
        color: var(--text-muted);
      }

      .tb-install-head .tag {
        color: var(--tb-accent);
        font-weight: 600;
        font-size: 10px;
        letter-spacing: 0.08em;
        text-transform: uppercase;
      }

      .tb-install-body {
        padding: 18px 20px;
        font-family: var(--mono);
        font-size: 13.5px;
        line-height: 1.65;
        color: var(--text);
        overflow-x: auto;
      }

      .tb-install-body .ps {
        color: var(--tb-accent);
        user-select: none;
        margin-right: 6px;
      }

      .tb-install-body .cmt {
        color: var(--text-dim);
        font-size: 12px;
      }

      /* Proof pills (terminal-tag style) ────────────────────── */
      .tb-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        max-width: 800px;
      }

      .tb-tag {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 6px 12px;
        background: var(--tb-bg-flat);
        border: 1px solid var(--tb-rule);
        border-radius: 3px;
        font-family: var(--mono);
        font-size: 12px;
        color: var(--text-muted);
      }

      .tb-tag .mark {
        font-weight: 700;
      }

      .tb-tag.ok .mark { color: var(--tb-accent); }
      .tb-tag.warn .mark { color: var(--tb-warn); }
      .tb-tag.warn { border-color: rgba(227, 179, 65, 0.3); }

      /* FAQ ─────────────────────────────────────────────────── */
      .tb-faq {
        max-width: 820px;
        margin: 0 auto;
        border: 1px solid var(--tb-rule);
        border-radius: 4px;
        overflow: hidden;
        background: var(--tb-bg-flat);
      }

      .tb-faq-item + .tb-faq-item {
        border-top: 1px solid var(--tb-rule);
      }

      .tb-faq-q {
        width: 100%;
        text-align: left;
        background: transparent;
        border: 0;
        padding: 20px 24px;
        color: var(--text);
        font-family: var(--mono);
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        display: flex;
        align-items: center;
        gap: 14px;
        transition: background 0.15s;
      }

      .tb-faq-q:hover {
        background: rgba(255, 255, 255, 0.025);
      }

      .tb-faq-q .num {
        color: var(--tb-accent);
        font-weight: 700;
        font-size: 12px;
        letter-spacing: 0.1em;
        flex-shrink: 0;
        width: 28px;
      }

      .tb-faq-q .label {
        flex: 1;
      }

      .tb-faq-q .toggle {
        color: var(--text-dim);
        font-family: var(--mono);
        font-size: 16px;
        flex-shrink: 0;
        transition: transform 0.2s;
      }

      .tb-faq-item.open .tb-faq-q .toggle {
        transform: rotate(45deg);
        color: var(--tb-accent);
      }

      .tb-faq-a {
        max-height: 0;
        overflow: hidden;
        transition:
          max-height 0.3s ease,
          padding 0.3s ease;
        background: var(--tb-bg-deep);
      }

      .tb-faq-item.open .tb-faq-a {
        max-height: 600px;
      }

      .tb-faq-a-inner {
        padding: 18px 24px 22px 66px;
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.75;
        border-top: 1px dashed var(--tb-rule);
      }

      .tb-faq-a-inner code {
        font-family: var(--mono);
        font-size: 12px;
        background: rgba(255, 255, 255, 0.06);
        padding: 1px 5px;
        border-radius: 3px;
        color: var(--tb-accent-2);
      }

      .tb-faq-a-inner strong {
        color: var(--text);
        font-weight: 600;
      }

      @media (max-width: 520px) {
        .tb-faq-a-inner { padding-left: 24px; }
      }

      /* Changelog timeline ─────────────────────────────────── */
      .tb-changelog {
        max-width: 860px;
        margin: 0 auto;
        position: relative;
      }

      .tb-clog-entry {
        display: grid;
        grid-template-columns: 140px 1fr;
        gap: 32px;
        padding: 28px 0;
        border-top: 1px dashed var(--tb-rule);
      }

      .tb-clog-entry:first-child {
        border-top: 1px solid var(--tb-rule);
        padding-top: 32px;
      }

      .tb-clog-side {
        font-family: var(--mono);
        font-size: 13px;
        line-height: 1.7;
        position: sticky;
        top: 80px;
        align-self: start;
      }

      .tb-clog-side .ver {
        font-weight: 700;
        color: var(--tb-accent);
        font-size: 18px;
      }

      .tb-clog-side .date {
        color: var(--text-dim);
        font-size: 12px;
      }

      .tb-clog-side .latest {
        display: inline-block;
        margin-top: 8px;
        padding: 2px 8px;
        background: rgba(63, 185, 80, 0.1);
        border: 1px solid rgba(63, 185, 80, 0.3);
        border-radius: 2px;
        color: var(--tb-accent);
        font-size: 10px;
        font-weight: 700;
        letter-spacing: 0.1em;
        text-transform: uppercase;
      }

      .tb-clog-body {
        min-width: 0;
      }

      .tb-clog-group {
        margin-bottom: 18px;
      }

      .tb-clog-group:last-child { margin-bottom: 0; }

      .tb-clog-group-head {
        font-family: var(--mono);
        font-size: 10px;
        font-weight: 700;
        letter-spacing: 0.15em;
        text-transform: uppercase;
        color: var(--text-dim);
        margin-bottom: 8px;
        display: flex;
        align-items: center;
        gap: 8px;
      }

      .tb-clog-group-head::before {
        content: "──";
        color: var(--tb-rule-bright);
      }

      .tb-clog-group.added .tb-clog-group-head { color: var(--tb-accent); }
      .tb-clog-group.fixed .tb-clog-group-head { color: var(--tb-accent-2); }
      .tb-clog-group.changed .tb-clog-group-head { color: var(--tb-warn); }
      .tb-clog-group.removed .tb-clog-group-head { color: var(--tb-danger); }

      .tb-clog-list {
        list-style: none;
        padding: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 6px;
      }

      .tb-clog-list li {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.65;
        padding-left: 18px;
        position: relative;
      }

      .tb-clog-list li::before {
        content: "+";
        position: absolute;
        left: 0;
        color: var(--tb-accent);
        font-family: var(--mono);
        font-weight: 700;
      }

      .tb-clog-group.fixed li::before { content: "~"; color: var(--tb-accent-2); }
      .tb-clog-group.changed li::before { content: "Δ"; color: var(--tb-warn); }
      .tb-clog-group.removed li::before { content: "−"; color: var(--tb-danger); }

      .tb-clog-list strong {
        color: var(--text);
        font-weight: 600;
      }

      .tb-clog-list code {
        font-family: var(--mono);
        font-size: 12px;
        background: rgba(255, 255, 255, 0.06);
        padding: 1px 5px;
        border-radius: 3px;
        color: var(--tb-accent-2);
      }

      .tb-clog-link {
        font-family: var(--mono);
        font-size: 12px;
        color: var(--text-dim);
        text-decoration: none;
        margin-top: 12px;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        transition: color 0.15s;
      }

      .tb-clog-link:hover {
        color: var(--tb-accent);
      }

      @media (max-width: 720px) {
        .tb-clog-entry {
          grid-template-columns: 1fr;
          gap: 16px;
        }
        .tb-clog-side {
          position: static;
        }
      }

      /* Resources grid ──────────────────────────────────────── */
      .tb-res-section {
        margin-bottom: 56px;
      }

      .tb-res-section:last-child { margin-bottom: 0; }

      .tb-res-head {
        font-family: var(--mono);
        font-size: 13px;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 18px;
        display: flex;
        align-items: center;
        gap: 12px;
        letter-spacing: 0.02em;
      }

      .tb-res-head::before {
        content: "┌─";
        color: var(--tb-rule-bright);
        font-weight: 400;
      }

      .tb-res-head::after {
        content: "";
        flex: 1;
        border-top: 1px solid var(--tb-rule);
      }

      .tb-res-head .count {
        color: var(--text-dim);
        font-weight: 400;
        font-size: 11px;
      }

      .tb-res-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 12px;
      }

      .tb-res-card {
        background: var(--tb-bg-flat);
        border: 1px solid var(--tb-rule);
        border-radius: 4px;
        padding: 22px 22px 20px;
        text-decoration: none;
        color: inherit;
        display: flex;
        flex-direction: column;
        gap: 10px;
        transition:
          border-color 0.2s,
          background 0.2s,
          transform 0.15s;
        position: relative;
      }

      .tb-res-card:hover {
        border-color: var(--tb-accent);
        background: var(--bg-card);
        transform: translateY(-2px);
      }

      .tb-res-card:hover .tb-res-card-arrow {
        color: var(--tb-accent);
        transform: translateX(4px);
      }

      .tb-res-card-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
      }

      .tb-res-card-tag {
        font-family: var(--mono);
        font-size: 10px;
        color: var(--text-dim);
        letter-spacing: 0.12em;
        text-transform: uppercase;
      }

      .tb-res-card h3 {
        font-family: var(--mono);
        font-size: 15px;
        font-weight: 700;
        color: var(--text);
      }

      .tb-res-card p {
        font-size: 13.5px;
        color: var(--text-muted);
        line-height: 1.6;
        flex: 1;
      }

      .tb-res-card-arrow {
        font-family: var(--mono);
        font-size: 13px;
        color: var(--text-dim);
        transition:
          color 0.15s,
          transform 0.15s;
        align-self: flex-start;
      }

      .tb-res-card code {
        font-family: var(--mono);
        font-size: 11px;
        background: rgba(255, 255, 255, 0.06);
        padding: 1px 5px;
        border-radius: 3px;
        color: var(--tb-accent-2);
      }

      /* Model guide table (re-skinned) ──────────────────────── */
      .tb-table-wrap {
        border: 1px solid var(--tb-rule);
        border-radius: 4px;
        overflow: hidden;
        background: var(--tb-bg-flat);
      }

      .tb-table {
        width: 100%;
        border-collapse: collapse;
      }

      .tb-table thead {
        background: var(--tb-bg-deep);
      }

      .tb-table th {
        text-align: left;
        padding: 14px 20px;
        font-family: var(--mono);
        font-size: 11px;
        font-weight: 700;
        letter-spacing: 0.12em;
        text-transform: uppercase;
        color: var(--text-dim);
        border-bottom: 1px solid var(--tb-rule);
      }

      .tb-table td {
        padding: 18px 20px;
        font-size: 14px;
        color: var(--text-muted);
        border-bottom: 1px solid var(--tb-rule);
        vertical-align: top;
        line-height: 1.65;
      }

      .tb-table tr:last-child td { border-bottom: 0; }

      .tb-table tr:hover td { background: rgba(255, 255, 255, 0.012); }

      .tb-table .mem {
        font-family: var(--mono);
        font-weight: 700;
        color: var(--tb-accent);
        font-size: 16px;
        white-space: nowrap;
        width: 1%;
      }

      .tb-table .mem .hw {
        display: block;
        font-size: 11px;
        font-weight: 400;
        color: var(--text-dim);
        margin-top: 4px;
        letter-spacing: 0;
      }

      .tb-table td strong {
        color: var(--text);
        font-weight: 600;
      }

      @media (max-width: 720px) {
        .tb-table thead { display: none; }
        .tb-table, .tb-table tbody, .tb-table tr, .tb-table td { display: block; width: 100%; }
        .tb-table tr {
          border-bottom: 1px solid var(--tb-rule);
          padding: 16px 0;
        }
        .tb-table td { border-bottom: 0; padding: 8px 20px; }
        .tb-table .mem { padding-top: 16px; }
      }

      /* Manual guide steps (rebuild) ────────────────────────── */
      .tb-manual {
        display: flex;
        flex-direction: column;
        gap: 0;
        border: 1px solid var(--tb-rule);
        border-radius: 4px;
        background: var(--tb-bg-flat);
        overflow: hidden;
      }

      .tb-manual-step {
        display: grid;
        grid-template-columns: 64px 1fr;
        gap: 20px;
        padding: 26px 28px;
      }

      .tb-manual-step + .tb-manual-step {
        border-top: 1px solid var(--tb-rule);
      }

      .tb-manual-step .ord {
        font-family: var(--mono);
        font-size: 24px;
        font-weight: 800;
        color: var(--tb-accent);
        line-height: 1;
        padding-top: 2px;
      }

      .tb-manual-step h4 {
        font-family: var(--mono);
        font-size: 17px;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 10px;
      }

      .tb-manual-step p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.65;
        margin-bottom: 10px;
      }

      .tb-manual-step ul {
        list-style: none;
        padding: 0;
        margin: 10px 0;
        display: flex;
        flex-direction: column;
        gap: 6px;
      }

      .tb-manual-step ul li {
        font-size: 13.5px;
        color: var(--text-muted);
        line-height: 1.6;
        padding-left: 18px;
        position: relative;
      }

      .tb-manual-step ul li::before {
        content: "›";
        position: absolute;
        left: 0;
        color: var(--tb-accent);
        font-weight: 700;
      }

      .tb-manual-step ul li strong {
        color: var(--text);
        font-weight: 600;
      }

      .tb-manual-step .example {
        margin-top: 12px;
        padding: 10px 14px;
        background: var(--tb-bg-deep);
        border-left: 2px solid var(--tb-accent-2);
        font-family: var(--mono);
        font-size: 12.5px;
        color: var(--text-muted);
        border-radius: 2px;
      }

      .tb-manual-step .example code {
        background: rgba(255, 255, 255, 0.06);
        padding: 1px 5px;
        border-radius: 3px;
        color: var(--tb-accent-2);
      }

      .tb-manual-note {
        margin-top: 24px;
        padding: 16px 22px;
        background: rgba(88, 166, 255, 0.05);
        border: 1px solid rgba(88, 166, 255, 0.2);
        border-radius: 4px;
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.65;
      }

      .tb-manual-note strong {
        color: var(--tb-accent-2);
        font-weight: 700;
      }

      @media (max-width: 640px) {
        .tb-manual-step {
          grid-template-columns: 1fr;
          gap: 12px;
        }
      }

      /* Final CTA strip ─────────────────────────────────────── */
      .tb-cta-strip {
        border: 1px solid var(--tb-rule);
        border-radius: 4px;
        padding: 48px 40px;
        text-align: center;
        background:
          linear-gradient(180deg, rgba(63, 185, 80, 0.04), transparent 80%),
          var(--tb-bg-flat);
        position: relative;
      }

      .tb-cta-strip::before,
      .tb-cta-strip::after {
        content: "┌─────┐";
        position: absolute;
        font-family: var(--mono);
        font-size: 10px;
        color: var(--tb-rule-bright);
        letter-spacing: 0.05em;
      }

      .tb-cta-strip::before { top: 8px; left: 16px; }
      .tb-cta-strip::after {
        content: "└─────┘";
        bottom: 8px;
        right: 16px;
      }

      .tb-cta-strip h2 {
        font-family: var(--mono);
        font-size: clamp(26px, 4vw, 40px);
        font-weight: 800;
        letter-spacing: -0.02em;
        color: var(--text);
        margin-bottom: 12px;
        line-height: 1.15;
      }

      .tb-cta-strip h2 .accent { color: var(--tb-accent); }

      .tb-cta-strip p {
        font-size: 15px;
        color: var(--text-muted);
        margin-bottom: 28px;
      }

      .tb-cta-strip .actions {
        display: flex;
        gap: 12px;
        justify-content: center;
        flex-wrap: wrap;
      }

      /* Section-title micro for CTA on subpages */
      .tb-section.tb-section-cta {
        padding: 80px 0;
      }

      /* Section padding refinement */
      @media (max-width: 768px) {
        .tb-section { padding: 56px 0; }
        .tb-page-hero { padding: 48px 0 36px; }
        .tb-cta-strip { padding: 36px 24px; }
      }