login.html

<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <link rel="icon" type="image/svg+xml" href="https://base44.com/logo_v2.svg" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="manifest" href="/manifest.json" />
  </head>
  <body>
    <div id="root"></div>
    <script type="module" src="/src/main.jsx"></script>
  </body>
</html>





<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Class Entry</title>
  <style>
    :root{
      --bg1:#0f172a;      /* slate-900 */
      --bg2:#2e1065;      /* purple-900-ish */
      --card:#0b1220cc;
      --border:#ffffff1a;
      --text:#e5e7eb;
      --muted:#cbd5e180;
      --cyan:#22d3ee;
      --purple:#a855f7;
      --danger:#fb7185;
    }
    *{box-sizing:border-box}
    html,body{height:100%; margin:0; font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;}
    body{
      color:var(--text);
      background: radial-gradient(900px 500px at 20% 20%, rgba(59,130,246,.22), transparent 60%),
                  radial-gradient(900px 500px at 80% 80%, rgba(168,85,247,.22), transparent 60%),
                  linear-gradient(135deg, var(--bg1), var(--bg2), var(--bg1));
      display:grid;
      place-items:center;
      padding:24px;
      overflow-x:hidden;
    }
    .card{
      width:min(520px, 100%);
      background: linear-gradient(180deg, rgba(15,23,42,.75), rgba(15,23,42,.45));
      border:1px solid var(--border);
      border-radius:24px;
      padding:28px;
      backdrop-filter: blur(14px);
      box-shadow: 0 25px 60px rgba(0,0,0,.45);
      position:relative;
      overflow:hidden;
    }
    .glow{
      position:absolute; inset:-80px;
      background: radial-gradient(circle at 30% 20%, rgba(34,211,238,.16), transparent 55%),
                  radial-gradient(circle at 70% 80%, rgba(168,85,247,.16), transparent 55%);
      pointer-events:none;
    }
    h1{margin:0 0 8px; font-size:28px; letter-spacing:.2px;}
    .sub{margin:0 0 18px; color:var(--muted); line-height:1.4;}
    label{display:block; font-size:14px; color:#e5e7ebcc; margin:14px 0 8px;}
    input{
      width:100%;
      padding:14px 14px;
      border-radius:14px;
      border:1px solid rgba(255,255,255,.15);
      background: rgba(2,6,23,.55);
      color:var(--text);
      outline:none;
      font-size:16px;
    }
    input:focus{
      border-color: rgba(34,211,238,.55);
      box-shadow: 0 0 0 4px rgba(34,211,238,.12);
    }
    .row{display:flex; gap:12px; margin-top:16px; align-items:center; flex-wrap:wrap;}
    button{
      border:0;
      border-radius:16px;
      padding:12px 16px;
      font-size:16px;
      font-weight:700;
      color:white;
      cursor:pointer;
      background: linear-gradient(90deg, rgba(59,130,246,1), rgba(168,85,247,1));
      box-shadow: 0 16px 30px rgba(168,85,247,.22);
    }
    button:active{transform: translateY(1px);}
    .hint{
      font-size:13px;
      color:var(--muted);
      flex: 1 1 auto;
    }
    .error{
      margin-top:12px;
      color: var(--danger);
      font-size:14px;
      display:none;
    }
    .ok{
      margin-top:12px;
      color: rgba(34,211,238,.95);
      font-size:14px;
      display:none;
    }
    .tiny{
      margin-top:18px;
      border-top:1px solid var(--border);
      padding-top:12px;
      color:#ffffff66;
      font-size:12px;
      text-align:center;
    }
  </style>
</head>
<body>
  <div class="card">
    <div class="glow"></div>

    <h1>Computer Vision Lab</h1>
    <p class="sub">Enter your class username to continue.</p>

    <form id="entryForm" autocomplete="off">
      <label for="username">Username</label>
      <input id="username" name="username" placeholder="e.g., cv-student" required />

      <div class="row">
        <button type="submit">Continue</button>
        <div class="hint">Tip: usernames are case-insensitive in this form.</div>
      </div>

      <div id="ok" class="ok">Accepted. Redirecting…</div>
      <div id="error" class="error">That username isn’t allowed.</div>
    </form>

    <div class="tiny">Class access check (client-side)</div>
  </div>

  <script>
    // ---- Configure these two values ----
    const ONLY_ALLOWED_USERNAME = "STUDENT";  // the one username you want to allow
    const REDIRECT_TO = "./Dashboard.html";       // where to go after success (change this)
    // -----------------------------------

    const form = document.getElementById("entryForm");
    const input = document.getElementById("username");
    const error = document.getElementById("error");
    const ok = document.getElementById("ok");

    const normalize = (s) => (s || "").trim().toLowerCase();

    form.addEventListener("submit", (e) => {
      e.preventDefault();

      const entered = normalize(input.value);
      const allowed = normalize(ONLY_ALLOWED_USERNAME);

      error.style.display = "none";
      ok.style.display = "none";

      if (!entered) return;

      if (entered === allowed) {
        ok.style.display = "block";

        // Remember they passed (optional)
        localStorage.setItem("class_username", entered);
        localStorage.setItem("class_access_granted", "true");

        setTimeout(() => {
          window.location.href = REDIRECT_TO;
        }, 450);
      } else {
        error.style.display = "block";
        input.focus();
        input.select();
      }
    });
  </script>
</body>
</html>