@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600&display=swap');

    /* ── ai-agent-gate.css ── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --bg:       #03070f;
      --surface:  #080f1e;
      --border:   #0e2040;
      --accent:   #00c2ff;
      --accent2:  #0066ff;
      --green:    #00ffaa;
      --red:      #ff3b5c;
      --yellow:   #ffc847;
      --text:     #cde4ff;
      --muted:    #3a5a80;
      --mono:     'Share Tech Mono', monospace;
      --sans:     'Syne', sans-serif;
    }

    html, body {
      height: 100%;
      background: var(--bg);
      color: var(--text);
      font-family: var(--sans);
      overflow: hidden;
    }

    /* ── Animated grid background ── */
    .grid-bg {
      position: fixed; inset: 0; z-index: 0;
      background-image:
        linear-gradient(rgba(0,194,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,194,255,.04) 1px, transparent 1px);
      background-size: 48px 48px;
      animation: gridDrift 30s linear infinite;
    }
    @keyframes gridDrift {
      0%   { background-position: 0 0; }
      100% { background-position: 48px 48px; }
    }

    /* ── Scanline overlay ── */
    .scanlines {
      position: fixed; inset: 0; z-index: 1; pointer-events: none;
      background: repeating-linear-gradient(
        0deg, transparent, transparent 2px,
        rgba(0,0,0,.15) 2px, rgba(0,0,0,.15) 4px
      );
    }

    /* ── Corner decorations (hidden for a cleaner look) ── */
    .corner { display: none; }

    /* ── Nav ── */
    nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 10;
      display: flex; align-items: center; justify-content: space-between;
      padding: 1.1rem 2rem;
      border-bottom: 1px solid var(--border);
      background: rgba(3,7,15,.85);
      backdrop-filter: blur(8px);
    }
    .nav-brand {
      font-family: 'DM Sans', sans-serif; font-size: 1rem; font-weight: 800;
      color: var(--accent); letter-spacing: .05em;
      display: flex; align-items: center; gap: .5rem;
    }
    .nav-brand, .nav-brand * {
      font-family: 'DM Sans', sans-serif !important;
    }
    .nav-pill {
      font-family: var(--mono); font-size: .65rem;
      padding: .3rem .85rem; border-radius: 20px;
      border: 1px solid rgba(0,194,255,.3);
      color: var(--accent); background: rgba(0,194,255,.06);
      display: flex; align-items: center; gap: .4rem;
    }
    .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); animation: pulse 2s infinite; }
    @keyframes pulse { 0%,100%{opacity:1;} 50%{opacity:.3;} }

    /* ── Main layout ── */
    .page {
      position: relative; z-index: 3;
      height: 100vh;
      display: flex; align-items: center; justify-content: center;
      padding-top: 60px;
    }

    /* ── Gate card ── */
    .gate-card {
      width: 100%; max-width: 480px;
      background: rgba(8,15,30,.95);
      border: 1px solid var(--border);
      border-radius: 4px;
      position: relative;
      animation: cardIn .5s ease forwards;
      overflow: hidden;
    }
    @keyframes cardIn {
      from { opacity: 0; transform: translateY(24px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    /* Glowing top edge */
    .gate-card::before {
      content: '';
      position: absolute; top: 0; left: 0; right: 0; height: 2px;
      background: linear-gradient(90deg, transparent, var(--accent), var(--accent2), transparent);
      animation: scanEdge 3s ease-in-out infinite;
    }
    @keyframes scanEdge {
      0%,100% { opacity: .4; }
      50%      { opacity: 1; }
    }

    .card-header {
      padding: 2rem 2rem 1.5rem;
      text-align: center;
      border-bottom: 1px solid var(--border);
    }

    /* ── Robot avatar ── */
    .robot-wrap {
      width: 100px; height: 100px; margin: 0 auto 1.25rem;
      border-radius: 50%;
      border: 2px solid rgba(0,194,255,.3);
      overflow: hidden;
      box-shadow: 0 0 30px rgba(0,194,255,.2);
      animation: avatarGlow 3s ease-in-out infinite;
    }
    @keyframes avatarGlow {
      0%,100% { box-shadow: 0 0 20px rgba(0,194,255,.2); }
      50%      { box-shadow: 0 0 40px rgba(0,194,255,.5); }
    }
    .robot-wrap img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.1); }

    .access-badge {
      display: inline-flex; align-items: center; gap: .4rem;
      font-family: var(--mono); font-size: .6rem; letter-spacing: .12em;
      color: var(--accent); border: 1px solid rgba(0,194,255,.25);
      background: rgba(0,194,255,.06); border-radius: 2px;
      padding: .25rem .8rem; margin-bottom: 1rem;
      text-transform: uppercase;
    }

    h1 {
      font-family: var(--sans); font-size: 1.6rem; font-weight: 800;
      line-height: 1.2; color: #fff;
    }
    h1 span { color: var(--accent); }
    .subtitle {
      font-size: .85rem; color: var(--muted); margin-top: .6rem; line-height: 1.6;
      font-family: var(--mono);
    }

    /* ── Message box ── */
    .msg-box {
      margin: 1.25rem 2rem 0;
      padding: .85rem 1.1rem;
      border-radius: 3px;
      font-family: var(--mono); font-size: .75rem; line-height: 1.6;
      display: flex; align-items: flex-start; gap: .6rem;
    }
    .msg-box.warn {
      background: rgba(255,200,71,.06);
      border: 1px solid rgba(255,200,71,.25);
      color: var(--yellow);
    }
    .msg-box.info {
      background: rgba(0,194,255,.06);
      border: 1px solid rgba(0,194,255,.25);
      color: var(--accent);
    }
    .msg-icon { flex-shrink: 0; font-size: 1rem; margin-top: .05rem; }

    /* ── Card body ── */
    .card-body { padding: 1.75rem 2rem; }

    .step-label {
      font-family: var(--mono); font-size: .6rem; letter-spacing: .15em;
      color: var(--muted); text-transform: uppercase; margin-bottom: .6rem;
    }

    /* ── Network info row ── */
    .net-row {
      display: grid; grid-template-columns: repeat(3, 1fr);
      gap: .75rem; margin-bottom: 1.5rem;
    }
    .net-item {
      background: rgba(0,0,0,.3); border: 1px solid var(--border);
      border-radius: 3px; padding: .65rem; text-align: center;
    }
    .net-item-label { font-family: var(--mono); font-size: .55rem; color: var(--muted); text-transform: uppercase; letter-spacing: .1em; }
    .net-item-value { font-family: var(--mono); font-size: .8rem; color: var(--text); margin-top: .25rem; font-weight: 600; }
    .net-item-value.cyan  { color: var(--accent); }
    .net-item-value.green { color: var(--green); }

    /* ── Connect button ── */
    #connect-btn {
      width: 100%; padding: 1rem 1.5rem;
      background: linear-gradient(135deg, var(--accent2), var(--accent));
      border: none; border-radius: 3px;
      color: #fff; font-family: var(--mono); font-size: .9rem; font-weight: 700;
      letter-spacing: .05em; cursor: pointer;
      transition: all .2s; position: relative; overflow: hidden;
    }
    #connect-btn::after {
      content: ''; position: absolute; inset: 0;
      background: linear-gradient(135deg, rgba(255,255,255,.1), transparent);
      opacity: 0; transition: opacity .2s;
    }
    #connect-btn:hover::after { opacity: 1; }
    #connect-btn:active { transform: scale(.98); }
    #connect-btn:disabled { background: var(--border); color: var(--muted); cursor: not-allowed; }

    /* ── Status bar ── */
    #status-bar {
      margin-top: .85rem;
      padding: .65rem 1rem;
      border-radius: 3px;
      font-family: var(--mono); font-size: .72rem; line-height: 1.5;
      display: none;
    }
    #status-bar.info    { background: rgba(0,194,255,.07); border: 1px solid rgba(0,194,255,.2); color: var(--accent); }
    #status-bar.success { background: rgba(0,255,170,.07); border: 1px solid rgba(0,255,170,.2); color: var(--green); }
    #status-bar.error   { background: rgba(255,59,92,.07);  border: 1px solid rgba(255,59,92,.2);  color: var(--red); }

    .card-footer {
      padding: .85rem 2rem 1.5rem;
      text-align: center;
      font-family: var(--mono); font-size: .65rem; color: var(--muted);
    }
    .card-footer a { color: var(--accent); text-decoration: none; }
    .card-footer a:hover { text-decoration: underline; }

    /* ── Divider ── */
    .divider {
      display: flex; align-items: center; gap: .75rem;
      margin: 1.25rem 0;
      font-family: var(--mono); font-size: .6rem; color: var(--muted);
    }
    .divider::before, .divider::after {
      content: ''; flex: 1; height: 1px; background: var(--border);
    }