login.html

<!DOCTYPE html>
<html lang="my">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>POS Login</title>
<link href="https://fonts.googleapis.com/css2?family=Noto+Sans+Myanmar:wght@300;400;600;700&family=JetBrains+Mono:wght@400;700&display=swap" rel="stylesheet">
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0a0e1a;
  --card: #111827;
  --border: #1e293b;
  --accent: #f59e0b;
  --accent2: #ef4444;
  --text: #f1f5f9;
  --muted: #64748b;
  --success: #10b981;
}

body {
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Noto Sans Myanmar', sans-serif;
  overflow: hidden;
}

.bg-grid {
  position: fixed; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(245,158,11,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245,158,11,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

.bg-glow {
  position: fixed;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(245,158,11,0.08) 0%, transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 0;
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
  50% { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
}

.card {
  position: relative; z-index: 1;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  margin: 20px;
  box-shadow: 0 25px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(245,158,11,0.1);
  animation: slideUp 0.5s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.logo {
  text-align: center;
  margin-bottom: 36px;
}

.logo-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--accent), #d97706);
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  margin: 0 auto 16px;
  box-shadow: 0 8px 24px rgba(245,158,11,0.3);
}

.logo h1 {
  color: var(--text);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo p {
  color: var(--muted);
  font-size: 13px;
  margin-top: 4px;
  font-family: 'JetBrains Mono', monospace;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

input {
  width: 100%;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  color: var(--text);
  font-size: 15px;
  font-family: 'Noto Sans Myanmar', sans-serif;
  transition: all 0.2s;
  outline: none;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245,158,11,0.1);
  background: rgba(255,255,255,0.05);
}

.btn-login {
  width: 100%;
  background: linear-gradient(135deg, var(--accent), #d97706);
  border: none;
  border-radius: 10px;
  padding: 15px;
  color: #000;
  font-size: 15px;
  font-weight: 700;
  font-family: 'Noto Sans Myanmar', sans-serif;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 8px;
  letter-spacing: 0.3px;
}

.btn-login:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(245,158,11,0.4);
}

.btn-login:active { transform: translateY(0); }

.btn-login:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.error-msg {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 8px;
  padding: 12px 14px;
  color: #fca5a5;
  font-size: 13px;
  margin-top: 16px;
  display: none;
}

.demo-accounts {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.demo-accounts p {
  color: var(--muted);
  font-size: 11px;
  text-align: center;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-family: 'JetBrains Mono', monospace;
}

.demo-btns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.demo-btn {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'Noto Sans Myanmar', sans-serif;
  text-align: center;
}

.demo-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(245,158,11,0.05);
}
</style>
</head>
<body>
<div class="bg-grid"></div>
<div class="bg-glow"></div>

<div class="card">
  <div class="logo">
    <div class="logo-icon">🛒</div>
    <h1>ကုန်စုံဆိုင် POS</h1>
    <p>Point of Sale System v1.0</p>
  </div>

  <div class="form-group">
    <label>အသုံးပြုသူအမည်</label>
    <input type="text" id="username" placeholder="username" autocomplete="username">
  </div>
  <div class="form-group">
    <label>စကားဝှက်</label>
    <input type="password" id="password" placeholder="••••••••" autocomplete="current-password"
           onkeydown="if(event.key==='Enter') doLogin()">
  </div>

  <button class="btn-login" id="loginBtn" onclick="doLogin()">
    ၀င်ရောက်မည်
  </button>

  <div class="error-msg" id="errMsg"></div>

  <div class="demo-accounts">
    <p>Demo Accounts</p>
    <div class="demo-btns">
      <div class="demo-btn" onclick="fillDemo('admin','admin123')">
        👑 Admin<br><small style="font-family:monospace">admin123</small>
      </div>
      <div class="demo-btn" onclick="fillDemo('cashier','cashier123')">
        💰 Cashier<br><small style="font-family:monospace">cashier123</small>
      </div>
    </div>
  </div>
</div>

<script>
function fillDemo(u, p) {
  document.getElementById('username').value = u;
  document.getElementById('password').value = p;
  document.getElementById('username').focus();
}

async function doLogin() {
  const btn = document.getElementById('loginBtn');
  const err = document.getElementById('errMsg');
  const u = document.getElementById('username').value.trim();
  const p = document.getElementById('password').value;

  if (!u || !p) {
    showErr('အသုံးပြုသူအမည်နှင့် စကားဝှက် ထည့်ပါ');
    return;
  }

  btn.disabled = true;
  btn.textContent = 'စစ်ဆေးနေသည်...';
  err.style.display = 'none';

  try {
    const res = await fetch('/api/login', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ username: u, password: p })
    });
    const data = await res.json();
    if (res.ok) {
      btn.textContent = '✓ ၀င်ရောက်ပြီး...';
      setTimeout(() => {
        window.location.href = data.role === 'admin' ? '/admin' : '/cashier';
      }, 400);
    } else {
      showErr(data.error || 'Login မအောင်မြင်ပါ');
      btn.disabled = false;
      btn.textContent = '၀င်ရောက်မည်';
    }
  } catch(e) {
    showErr('ချိတ်ဆက်မှု ပြဿနာ ဖြစ်နေသည်');
    btn.disabled = false;
    btn.textContent = '၀င်ရောက်မည်';
  }
}

function showErr(msg) {
  const err = document.getElementById('errMsg');
  err.textContent = msg;
  err.style.display = 'block';
}

// Auto focus
document.getElementById('username').focus();
</script>
</body>
</html>