:root {
  --primary: #153e54;
  --accent: #eb8531;
  --background: #eef3f7;
  --text: #263238;
  --muted: #667085;
  --success: #15803d;
  --error: #dc2626;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(135deg, var(--primary), #0f2d3e);
  color: var(--text);
}

.login-container {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 390px;
  background: var(--white);
  border-radius: 18px;
  padding: 32px;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.25);
}

.logo {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
  letter-spacing: 1px;
  border: 4px solid var(--accent);
}

h1, h2 {
  margin: 0;
  text-align: center;
  color: var(--primary);
}

.subtitle {
  margin: 10px 0 24px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

.form-group {
  margin-bottom: 16px;
}

label {
  display: block;
  margin-bottom: 7px;
  font-weight: bold;
  color: var(--primary);
}

input {
  width: 100%;
  padding: 12px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  font-size: 15px;
  outline: none;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(235, 133, 49, 0.18);
}

button {
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: 10px;
  background: var(--primary);
  color: var(--white);
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition: 0.2s ease;
}

button:hover {
  background: var(--accent);
}

.message {
  min-height: 22px;
  text-align: center;
  font-weight: bold;
  margin-top: 16px;
}

.success {
  color: var(--success);
}

.error {
  color: var(--error);
}

.dashboard {
  margin-top: 24px;
  padding: 20px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  text-align: center;
}

.dashboard p {
  color: var(--muted);
}

.hidden {
  display: none;
}

footer {
  margin-top: 22px;
  text-align: center;
  color: var(--muted);
}