:root {
  --primary: #111827;
  --accent: #6366f1;
  --bg: #f3f4f6;
  --text: #1f2937;
  --muted: #6b7280;
}

* {
  box-sizing: border-box;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(135deg, #111827, #1e3a8a);
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-wrapper {
  width: 100%;
  max-width: 420px;
  padding: 20px;
}

.login-card {
  background: rgba(255,255,255,0.95);
  border-radius: 14px;
  padding: 40px;
  box-shadow: 0 30px 60px rgba(0,0,0,.25);
}

.brand {
  text-align: center;
  margin-bottom: 30px;
}

.brand h1 {
  margin: 0;
  font-size: 26px;
  letter-spacing: 1px;
}

.brand span {
  color: var(--accent);
}

.brand p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  font-size: 13px;
  color: var(--muted);
  display: block;
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 13px 14px;
  border-radius: 8px;
  border: 1px solid #d1d5db;
  font-size: 14px;
  transition: all .2s ease;
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99,102,241,.15);
}

.btn-login {
  width: 100%;
  padding: 14px;
  border-radius: 8px;
  border: none;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s ease, transform .1s ease;
}

.btn-login:hover {
  background: #000;
}

.btn-login:active {
  transform: scale(.98);
}

.alert {
  background: #fee2e2;
  color: #991b1b;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 18px;
  border: 1px solid #fecaca;
}

.footer-text {
  text-align: center;
  margin-top: 24px;
  font-size: 12px;
  color: #9ca3af;
}