img {max-width: 100%; max-height: 100%;}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Arial, sans-serif;
}

/* Celá stránka – centrování */
body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: linear-gradient(135deg, #0082bb 0%, #141515 100%);
}

/* Kontejner pro login */
.login-container {
  background-color: white;
  padding: 2.5rem;
  border-radius: 1rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  width: 100%;
  max-width: 360px;
}

h2 {
  text-align: center;
  margin-bottom: 1.5rem;
  color: #333;
}

/* Skupina vstupů */
.input-group {
  margin-bottom: 1rem;
}

label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 600;
  color: #444;
}

input {
  width: 100%;
  padding: 0.6rem;
  border: 1px solid #ccc;
  border-radius: 0.5rem;
  transition: 0.2s;
}

input:focus {
  border-color: #2575fc;
  outline: none;
}

/* Tlačítko */
button {
  width: 100%;
  background-color: #0096d7;
  color: white;
  padding: 0.7rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  cursor: pointer;
  transition: 0.2s;
}

button:hover {
  background-color: #0082bb;
}

/* Text pod formulářem */
.signup-text {
  text-align: center;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: #555;
}

.signup-text a {
  color: #2575fc;
  text-decoration: none;
  font-weight: 600;
}

.signup-text a:hover {
  text-decoration: underline;
}