* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #edf4ff 0%, #f7fbff 50%, #ffffff 100%);
  color: #1f2937;
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  border: 1px solid #dbe7f7;
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

.logo {
  width: 110px;
  height: auto;
  display: block;
  margin: 0 auto 12px;
}

h1 {
  margin: 0;
  text-align: center;
  font-size: 1.5rem;
}

.subtitle {
  margin: 8px 0 20px;
  text-align: center;
  color: #64748b;
}

form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

label {
  font-size: 0.9rem;
  font-weight: 600;
  margin-top: 4px;
}

input {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.95rem;
}

input:focus {
  outline: none;
  border-color: #0a66c2;
  box-shadow: 0 0 0 3px rgba(10, 102, 194, 0.12);
}

button {
  margin-top: 12px;
  padding: 11px 12px;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  background: #0a66c2;
  cursor: pointer;
}

button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.message {
  min-height: 24px;
  margin: 14px 0 0;
  font-size: 0.9rem;
}

.message.success {
  color: #0f766e;
}

.message.error {
  color: #b91c1c;
}

.register-link {
  margin: 8px 0 0;
  text-align: center;
  font-size: 0.9rem;
}

.register-link a {
  color: #0a66c2;
  text-decoration: none;
  font-weight: 600;
}

.register-link a:hover {
  text-decoration: underline;
}