/* Variables de tema y reseteo general */
:root {
  --bg-color: #f8f9fa;
  --card-bg: #ffffff;
  --text-main: #1f1f1f;
  --text-sub: #5f6368;
  --google-blue: #1a73e8;
  --google-blue-hover: #1557b0;
  --border-color: #dadce0;
  --error-bg: #fce8e6;
  --error-text: #c5221f;
  --border-radius-lg: 28px;
  --border-radius-sm: 8px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Google Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Tarjeta del formulario */
.contenedor-form {
  width: 200%;
  max-width: 400px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Logo y encabezado */
.contenedor-form .logo {
  margin-bottom: 16px;
}

.contenedor-form h2 {
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 28px;
  color: var(--text-main);
  text-align: center;
}

/* Campos de entrada de texto */
.contenedor-form input[type="text"],
.contenedor-form input[type="password"] {
  width: 100%;
  padding: 14px 16px;
  margin-bottom: 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: 15px;
  color: var(--text-main);
  background-color: #ffffff;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contenedor-form input[type="text"]:focus,
.contenedor-form input[type="password"]:focus {
  border-color: var(--google-blue);
  box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
}

.contenedor-form input::placeholder {
  color: var(--text-sub);
}

/* Botón de envío */
.contenedor-form button[type="submit"] {
  width: 100%;
  padding: 12px;
  margin-top: 8px;
  border: none;
  border-radius: 100px;
  background-color: var(--google-blue);
  color: #ffffff;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.contenedor-form button[type="submit"]:hover {
  background-color: var(--google-blue-hover);
}

.contenedor-form button[type="submit"]:active {
  transform: scale(0.98);
}

/* Mensaje de error */
.error-msg {
  width: 100%;
  background-color: var(--error-bg);
  color: var(--error-text);
  padding: 12px 16px;
  border-radius: var(--border-radius-sm);
  font-size: 13px;
  margin-bottom: 20px;
  text-align: center;
  border: 1px solid rgba(197, 34, 31, 0.2);
}

/* Texto del pie de página */
.footer-text {
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-sub);
  text-align: center;
}