:root {
  /* Colores */
  --color-bg-body: #f5f5f5;
  --color-white: #fff;
  --color-text-dark: #333;
  --color-text-light: #666;
  --color-border: #ccc;

  --color-primary: #c8a22d;
  --color-primary-hover: #b39724;

  --color-error-bg: #f44336;
  --color-error-text: #fff;

  /* Dimensiones */
  --container-width: 400px; /* Ancho aumentado */
  --container-padding: 30px 30px; /* Padding aumentado */
  --border-radius: 8px;
  --input-radius: 4px;

  --input-padding: 12px 15px; /* Padding aumentado */
  --button-padding: 14px 0; /* Padding aumentado */

  /* Sombras */
  --shadow-soft: 0 4px 12px rgba(0,0,0,0.1);

  /* Tipografías */
  --font-size-base: 15px;
  --font-size-label: 14px;
  --font-size-button: 16px;

  /* Transiciones */
  --transition-base: 0.3s ease;
}

/* Reset de márgenes y paddings */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif; 
}

body, html {
  height: 100%;
  background: var(--color-bg-body);
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  background: var(--color-white);
  width: var(--container-width);
  padding: 60px 30px 30px;
  box-shadow: var(--shadow-soft);
  border-radius: var(--border-radius);
  text-align: center;
  position: relative;
}

.back-link {
  position: absolute;
  top: 15px;
  left: 20px;
  color: var(--color-text-light);
  text-decoration: none;
  font-size: 14px;
}

.back-link:hover {
  color: var(--color-text-dark);
  text-decoration: none;
}

.logo {
  width: 80px;
  margin: 0 auto 15px;
  display: block;
}

h1 {
  font-weight: 600;
  margin-bottom: 8px;
}

p.subtitle {
  font-size: var(--font-size-label);
  color: var(--color-text-light);
  margin-bottom: 30px;
}

label {
  display: block;
  text-align: left;
  font-size: var(--font-size-label);
  margin-bottom: 6px;
  color: var(--color-text-dark);
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: var(--input-padding);
  margin-bottom: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--input-radius);
  font-size: var(--font-size-base);
}

button {
  width: 100%;
  padding: var(--button-padding);
  background-color: var(--color-primary);
  border: none;
  border-radius: var(--input-radius);
  color: var(--color-text-dark);
  font-weight: 250;
  font-size: var(--font-size-button);
  cursor: pointer;
  transition: background-color var(--transition-base);
  margin-bottom: 20px;
}

button:hover {
  background-color: var(--color-primary-hover);
}

.error-message {
  background-color: var(--color-error-bg);
  color: var(--color-error-text);
  padding: 10px;
  margin-bottom: 15px;
  border-radius: var(--input-radius);
  text-align: center;
}

.register-link {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--color-text-light);
    font-size: 14px;
}

.register-link a {
    color: #007bff;
    text-decoration: none;
}

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

/* Añadir al final del archivo */
@media (max-width: 480px) {
    :root {
        --container-width: 90%;
        --container-padding: 20px;
        --input-padding: 10px 12px;
        --button-padding: 12px 0;
    }

    .container {
        padding: 40px 20px;
    }

    h1 {
        font-size: 20px;
    }

    .subtitle {
        font-size: 13px;
    }
}